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authorRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
committerRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
commit28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch)
tree15f07c4c43d635959c6afee96bde71fb1b3614ee /sysdeps/posix
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initial import
Diffstat (limited to 'sysdeps/posix')
-rw-r--r--sysdeps/posix/Dist1
-rw-r--r--sysdeps/posix/Makefile40
-rw-r--r--sysdeps/posix/clock.c33
-rw-r--r--sysdeps/posix/ctermid.c39
-rw-r--r--sysdeps/posix/cuserid.c46
-rw-r--r--sysdeps/posix/defs.c76
-rw-r--r--sysdeps/posix/dup.c32
-rw-r--r--sysdeps/posix/dup2.c59
-rw-r--r--sysdeps/posix/fdopen.c72
-rw-r--r--sysdeps/posix/flock.c58
-rw-r--r--sysdeps/posix/fpathconf.c116
-rw-r--r--sysdeps/posix/getcwd.c366
-rw-r--r--sysdeps/posix/getdtsz.c32
-rw-r--r--sysdeps/posix/getpagesize.c31
-rw-r--r--sysdeps/posix/gettimeofday.c75
-rw-r--r--sysdeps/posix/isatty.c39
-rw-r--r--sysdeps/posix/killpg.c37
-rw-r--r--sysdeps/posix/libc_fatal.c56
-rw-r--r--sysdeps/posix/mk-stdiolim.c71
-rw-r--r--sysdeps/posix/mkstemp.c64
-rw-r--r--sysdeps/posix/mktemp.c64
-rw-r--r--sysdeps/posix/pipestream.c223
-rw-r--r--sysdeps/posix/raise.c28
-rw-r--r--sysdeps/posix/readv.c68
-rw-r--r--sysdeps/posix/remove.c40
-rw-r--r--sysdeps/posix/rename.c50
-rw-r--r--sysdeps/posix/sigblock.c55
-rw-r--r--sysdeps/posix/sigintr.c57
-rw-r--r--sysdeps/posix/signal.c47
-rw-r--r--sysdeps/posix/sigpause.c45
-rw-r--r--sysdeps/posix/sigsetmask.c55
-rw-r--r--sysdeps/posix/sigsuspend.c51
-rw-r--r--sysdeps/posix/sigvec.c162
-rw-r--r--sysdeps/posix/sleep.c106
-rw-r--r--sysdeps/posix/stdio_init.c70
-rw-r--r--sysdeps/posix/sysconf.c183
-rw-r--r--sysdeps/posix/system.c145
-rw-r--r--sysdeps/posix/tempname.c208
-rw-r--r--sysdeps/posix/truncate.c41
-rw-r--r--sysdeps/posix/ttyname.c82
-rw-r--r--sysdeps/posix/wait.c31
-rw-r--r--sysdeps/posix/wait3.c42
-rw-r--r--sysdeps/posix/writev.c64
43 files changed, 3260 insertions, 0 deletions
diff --git a/sysdeps/posix/Dist b/sysdeps/posix/Dist
new file mode 100644
index 0000000..d003c6e
--- /dev/null
+++ b/sysdeps/posix/Dist
@@ -0,0 +1 @@
+mk-stdiolim.c
diff --git a/sysdeps/posix/Makefile b/sysdeps/posix/Makefile
new file mode 100644
index 0000000..fd1b3f2
--- /dev/null
+++ b/sysdeps/posix/Makefile
@@ -0,0 +1,40 @@
+# Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Library General Public License as
+# published by the Free Software Foundation; either version 2 of the
+# License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Library General Public License for more details.
+
+# You should have received a copy of the GNU Library General Public
+# License along with the GNU C Library; see the file COPYING.LIB. If
+# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+# Cambridge, MA 02139, USA.
+
+$(common-objpfx)stdio_lim.h: $(common-objpfx)mk-stdiolim
+ $(dir $<)$(notdir $<) > $@-t
+ mv $@-t $@
+
+ifdef subdir
+objdir-CPPFLAGS = $(CPPFLAGS) # Already has appropriate `..'s.
+else
+objdir-CPPFLAGS = $(patsubst -I/..//%,-I/%,$(CPPFLAGS:-I%=-I../%))
+endif
+# Turn into a version that works when cd'd into $(objdir).
+cded-objdir-CPPFLAGS = $(patsubst -I$$cwd//%,-I/%,\
+ $(patsubst -I%,-I$$cwd/%,$(CPPFLAGS)))
+# $(BUILD_CFLAGS) needs to come last because it contains unwanted -Is.
+$(common-objpfx)mk-stdiolim: $(sysdep_dir)/posix/mk-stdiolim.c \
+ posix1_lim.h local_lim.h
+ cwd=`pwd`; cd $(common-objdir); \
+ $(BUILD_CC) $(cded-objdir-CPPFLAGS) $(BUILD_CFLAGS) \
+ $$cwd/$< -o $(patsubst $(common-objpfx)%,%,$@)
+
+
+common-generated := $(common-generated) stdio_lim.h mk-stdiolim
+before-compile := $(before-compile) $(common-objpfx)stdio_lim.h
diff --git a/sysdeps/posix/clock.c b/sysdeps/posix/clock.c
new file mode 100644
index 0000000..c34593b
--- /dev/null
+++ b/sysdeps/posix/clock.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <sys/times.h>
+#include <time.h>
+
+/* Return the time used by the program so far (user time + system time). */
+clock_t
+DEFUN_VOID(clock)
+{
+ struct tms buf;
+
+ if (__times(&buf) < 0)
+ return (clock_t) -1;
+
+ return ((buf.tms_utime + buf.tms_stime) * CLK_TCK * CLOCKS_PER_SEC);
+}
diff --git a/sysdeps/posix/ctermid.c b/sysdeps/posix/ctermid.c
new file mode 100644
index 0000000..8e96694
--- /dev/null
+++ b/sysdeps/posix/ctermid.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 1991 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <stdio.h>
+#include <string.h>
+
+
+/* Return the name of the controlling terminal.
+ If S is not NULL, the name is copied into it (it should be at
+ least L_ctermid bytes long), otherwise a static buffer is used. */
+char *
+DEFUN(ctermid, (s), char *s)
+{
+ static char name[L_ctermid];
+
+ if (name[0] == '\0')
+ (void) strcpy(name, "/dev/tty");
+
+ if (s == NULL)
+ return(name);
+
+ return(strcpy(s, name));
+}
diff --git a/sysdeps/posix/cuserid.c b/sysdeps/posix/cuserid.c
new file mode 100644
index 0000000..b874e90
--- /dev/null
+++ b/sysdeps/posix/cuserid.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 1991 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <stdio.h>
+#include <string.h>
+#include <pwd.h>
+
+extern int EXFUN(geteuid, (NOARGS));
+
+
+/* Return the username of the caller.
+ If S is not NULL, it points to a buffer of at least L_cuserid bytes
+ into which the name is copied; otherwise, a static buffer is used. */
+char *
+DEFUN(cuserid, (s), char *s)
+{
+ static char name[L_cuserid];
+ struct passwd *pwent = getpwuid(geteuid());
+
+ if (pwent == NULL)
+ {
+ if (s != NULL)
+ s[0] = '\0';
+ return NULL;
+ }
+
+ if (s == NULL)
+ s = name;
+ return strcpy(s, pwent->pw_name);
+}
diff --git a/sysdeps/posix/defs.c b/sysdeps/posix/defs.c
new file mode 100644
index 0000000..fcbaf16
--- /dev/null
+++ b/sysdeps/posix/defs.c
@@ -0,0 +1,76 @@
+/* Definitions of global stdio data structures.
+
+Copyright (C) 1991, 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <unistd.h>
+
+/* This file defines all the global internal variables for stdio. */
+
+/* Standard streams. */
+#define READ 1, 0
+#define WRITE 0, 1
+#define BUFFERED 0
+#define UNBUFFERED 1
+#define stdstream(name, next, fd, readwrite, unbuffered) \
+ { \
+ _IOMAGIC, \
+ NULL, NULL, NULL, NULL, 0, \
+ (PTR) fd, \
+ { readwrite, /* ... */ }, \
+ { NULL, NULL, NULL, NULL, NULL }, \
+ { NULL, NULL }, \
+ -1, -1, \
+ (next), \
+ NULL, '\0', 0, \
+ 0, 0, unbuffered, 0, 0, 0, 0 \
+ }
+static FILE stdstreams[3] =
+ {
+ stdstream (&stdstreams[0], &stdstreams[1], STDIN_FILENO, READ, BUFFERED),
+ stdstream (&stdstreams[1], &stdstreams[2], STDOUT_FILENO, WRITE, BUFFERED),
+ stdstream (&stdstreams[2], NULL, STDERR_FILENO, WRITE, UNBUFFERED),
+ };
+FILE *stdin = &stdstreams[0];
+FILE *stdout = &stdstreams[1];
+FILE *stderr = &stdstreams[2];
+
+/* Pointer to the first stream in the list. */
+FILE *__stdio_head = &stdstreams[0];
+
+/* This function MUST be in this file!
+ This is because we want _cleanup to go into the __libc_atexit set
+ when any stdio code is used (and to use any stdio code, one must reference
+ something defined in this file), and since only local symbols can be made
+ set elements, having the set element stab entry here and _cleanup elsewhere
+ loses; and having them both elsewhere loses because there is no reference
+ to cause _cleanup to be linked in. */
+
+void
+DEFUN_VOID(_cleanup)
+{
+ (void) fclose((FILE *) NULL);
+}
+
+
+#ifdef HAVE_GNU_LD
+text_set_element(__libc_atexit, _cleanup);
+#endif
diff --git a/sysdeps/posix/dup.c b/sysdeps/posix/dup.c
new file mode 100644
index 0000000..73c5900
--- /dev/null
+++ b/sysdeps/posix/dup.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 1991, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+
+/* Duplicate FD, returning a new file descriptor open on the same file. */
+int
+DEFUN(__dup, (fd), int fd)
+{
+ return fcntl(fd, F_DUPFD, 0);
+}
+
+weak_alias (__dup, dup)
diff --git a/sysdeps/posix/dup2.c b/sysdeps/posix/dup2.c
new file mode 100644
index 0000000..c0c6b2a
--- /dev/null
+++ b/sysdeps/posix/dup2.c
@@ -0,0 +1,59 @@
+/* Copyright (C) 1991, 1992, 1993, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <unistd.h>
+
+
+/* Duplicate FD to FD2, closing the old FD2 and making FD2 be
+ open the same file as FD is. Return FD2 or -1. */
+int
+DEFUN(__dup2, (fd, fd2), int fd AND int fd2)
+{
+ int save;
+
+ if (fd2 < 0
+#ifdef OPEN_MAX
+ || fd2 >= OPEN_MAX
+#endif
+)
+ {
+ errno = EBADF;
+ return -1;
+ }
+
+ /* Check if FD is kosher. */
+ if (fcntl (fd, F_GETFL) < 0)
+ return -1;
+
+ if (fd == fd2)
+ return fd2;
+
+ /* This is not atomic. */
+
+ save = errno;
+ (void) close (fd2);
+ errno = save;
+
+ return fcntl (fd, F_DUPFD, fd2);
+}
+
+weak_alias (__dup2, dup2)
diff --git a/sysdeps/posix/fdopen.c b/sysdeps/posix/fdopen.c
new file mode 100644
index 0000000..ad746ec
--- /dev/null
+++ b/sysdeps/posix/fdopen.c
@@ -0,0 +1,72 @@
+/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <stdio.h>
+#include <fcntl.h>
+
+/* Defined in fopen.c. */
+extern int EXFUN(__getmode, (CONST char *mode, __io_mode *mptr));
+
+/* Open a new stream on a given system file descriptor. */
+FILE *
+DEFUN(fdopen, (fd, mode), int fd AND CONST char *mode)
+{
+ register FILE *stream;
+ __io_mode m;
+ int dflags;
+
+ if (!__getmode (mode, &m))
+ return NULL;
+
+ /* Verify the FD is valid and allows the access MODE specifies. */
+
+ dflags = __fcntl (fd, F_GETFL);
+ if (dflags == -1)
+ /* FD was invalid; fcntl has already set errno. */
+ return NULL;
+
+ /* Check the access mode. */
+ switch (dflags & O_ACCMODE)
+ {
+ case O_RDONLY:
+ if (!m.__read)
+ {
+ errno = EBADF;
+ return NULL;
+ }
+ break;
+ case O_WRONLY:
+ if (!m.__write)
+ {
+ errno = EBADF;
+ return NULL;
+ }
+ break;
+ }
+
+ stream = __newstream ();
+ if (stream == NULL)
+ return NULL;
+
+ stream->__cookie = (PTR) fd;
+ stream->__mode = m;
+
+ return stream;
+}
diff --git a/sysdeps/posix/flock.c b/sysdeps/posix/flock.c
new file mode 100644
index 0000000..b4c9fc3
--- /dev/null
+++ b/sysdeps/posix/flock.c
@@ -0,0 +1,58 @@
+/* Copyright (C) 1992, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+/* This file implements the `flock' function in terms of the POSIX.1 `fcntl'
+ locking mechanism. In 4BSD, these are two incompatible locking mechanisms,
+ perhaps with different semantics? */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/file.h>
+
+/* Apply or remove an advisory lock, according to OPERATION,
+ on the file FD refers to. */
+int
+DEFUN(__flock, (fd, operation), int fd AND int operation)
+{
+ struct flock lbuf;
+
+ switch (operation & ~LOCK_NB)
+ {
+ case LOCK_SH:
+ lbuf.l_type = F_RDLCK;
+ break;
+ case LOCK_EX:
+ lbuf.l_type = F_WRLCK;
+ break;
+ case LOCK_UN:
+ lbuf.l_type = F_UNLCK;
+ break;
+ default:
+ errno = EINVAL;
+ return -1;
+ }
+
+ lbuf.l_whence = SEEK_SET;
+ lbuf.l_start = lbuf.l_len = 0L; /* Lock the whole file. */
+
+ return __fcntl (fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &lbuf);
+}
+
+weak_alias (__flock, flock)
diff --git a/sysdeps/posix/fpathconf.c b/sysdeps/posix/fpathconf.c
new file mode 100644
index 0000000..b339990
--- /dev/null
+++ b/sysdeps/posix/fpathconf.c
@@ -0,0 +1,116 @@
+/* Copyright (C) 1991, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <limits.h>
+
+
+/* Get file-specific information about descriptor FD. */
+long int
+DEFUN(__fpathconf, (fd, name), int fd AND int name)
+{
+ if (fd < 0)
+ {
+ errno = EBADF;
+ return -1;
+ }
+
+ switch (name)
+ {
+ default:
+ errno = EINVAL;
+ return -1;
+
+ case _PC_LINK_MAX:
+#ifdef LINK_MAX
+ return LINK_MAX;
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+
+ case _PC_MAX_CANON:
+#ifdef MAX_CANON
+ return MAX_CANON;
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+
+ case _PC_MAX_INPUT:
+#ifdef MAX_INPUT
+ return MAX_INPUT;
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+
+ case _PC_NAME_MAX:
+#ifdef NAME_MAX
+ return NAME_MAX;
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+
+ case _PC_PATH_MAX:
+#ifdef PATH_MAX
+ return PATH_MAX;
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+
+ case _PC_PIPE_BUF:
+#ifdef PIPE_BUF
+ return PIPE_BUF;
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+
+ case _PC_CHOWN_RESTRICTED:
+#ifdef _POSIX_CHOWN_RESTRICTED
+ return _POSIX_CHOWN_RESTRICTED;
+#else
+ return -1;
+#endif
+
+ case _PC_NO_TRUNC:
+#ifdef _POSIX_NO_TRUNC
+ return _POSIX_NO_TRUNC;
+#else
+ return -1;
+#endif
+
+ case _PC_VDISABLE:
+#ifdef _POSIX_VDISABLE
+ return _POSIX_VDISABLE;
+#else
+ return -1;
+#endif
+ }
+
+ errno = ENOSYS;
+ return -1;
+}
+
+weak_alias (__fpathconf, fpathconf)
diff --git a/sysdeps/posix/getcwd.c b/sysdeps/posix/getcwd.c
new file mode 100644
index 0000000..7b992a9
--- /dev/null
+++ b/sysdeps/posix/getcwd.c
@@ -0,0 +1,366 @@
+/* Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+/* Wants:
+ AC_STDC_HEADERS
+ AC_DIR_HEADER
+ AC_UNISTD_H
+ AC_MEMORY_H
+ AC_CONST
+ AC_ALLOCA
+ */
+
+/* AIX requires this to be the first thing in the file. */
+#if defined (_AIX) && !defined (__GNUC__)
+ #pragma alloca
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#ifdef STDC_HEADERS
+#include <stddef.h>
+#endif
+
+#if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS)
+extern int errno;
+#endif
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+#if defined (USGr3) && !defined (DIRENT)
+#define DIRENT
+#endif /* USGr3 */
+#if defined (Xenix) && !defined (SYSNDIR)
+#define SYSNDIR
+#endif /* Xenix */
+
+#if defined (POSIX) || defined (DIRENT) || defined (__GNU_LIBRARY__)
+#include <dirent.h>
+#ifndef __GNU_LIBRARY__
+#define D_NAMLEN(d) strlen((d)->d_name)
+#else
+#define HAVE_D_NAMLEN
+#define D_NAMLEN(d) ((d)->d_namlen)
+#endif
+#else /* not POSIX or DIRENT */
+#define dirent direct
+#define D_NAMLEN(d) ((d)->d_namlen)
+#define HAVE_D_NAMLEN
+#if defined (USG) && !defined (sgi)
+#if defined (SYSNDIR)
+#include <sys/ndir.h>
+#else /* Not SYSNDIR */
+#include "ndir.h"
+#endif /* SYSNDIR */
+#else /* not USG */
+#include <sys/dir.h>
+#endif /* USG */
+#endif /* POSIX or DIRENT or __GNU_LIBRARY__ */
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#if (defined (STDC_HEADERS) || defined (__GNU_LIBRARY__) \
+ || defined (POSIX))
+#include <stdlib.h>
+#include <string.h>
+#define ANSI_STRING
+#else /* No standard headers. */
+
+#ifdef USG
+
+#include <string.h>
+#ifdef NEED_MEMORY_H
+#include <memory.h>
+#endif
+#define ANSI_STRING
+
+#else /* Not USG. */
+
+#ifdef NeXT
+
+#include <string.h>
+
+#else /* Not NeXT. */
+
+#include <strings.h>
+
+#ifndef bcmp
+extern int bcmp ();
+#endif
+#ifndef bzero
+extern void bzero ();
+#endif
+#ifndef bcopy
+extern void bcopy ();
+#endif
+
+#endif /* NeXT. */
+
+#endif /* USG. */
+
+extern char *malloc (), *realloc ();
+extern void free ();
+
+#endif /* Standard headers. */
+
+#ifndef ANSI_STRING
+#define memcpy(d, s, n) bcopy((s), (d), (n))
+#define memmove memcpy
+#endif /* Not ANSI_STRING. */
+
+#if !defined(__alloca) && !defined(__GNU_LIBRARY__)
+
+#ifdef __GNUC__
+#undef alloca
+#define alloca(n) __builtin_alloca (n)
+#else /* Not GCC. */
+#if defined (sparc) || defined (HAVE_ALLOCA_H)
+#include <alloca.h>
+#else /* Not sparc or HAVE_ALLOCA_H. */
+#ifndef _AIX
+extern char *alloca ();
+#endif /* Not _AIX. */
+#endif /* sparc or HAVE_ALLOCA_H. */
+#endif /* GCC. */
+
+#define __alloca alloca
+
+#endif
+
+#if (defined (HAVE_LIMITS_H) || defined (STDC_HEADERS) || \
+ defined (__GNU_LIBRARY__))
+#include <limits.h>
+#else
+#include <sys/param.h>
+#endif
+
+#ifndef PATH_MAX
+#ifdef MAXPATHLEN
+#define PATH_MAX MAXPATHLEN
+#else
+#define PATH_MAX 1024
+#endif
+#endif
+
+#ifndef STDC_HEADERS
+#undef size_t
+#define size_t unsigned int
+#endif
+
+#if !__STDC__ && !defined (const)
+#define const
+#endif
+
+#ifndef __GNU_LIBRARY__
+#define __lstat stat
+#endif
+
+/* Get the pathname of the current working directory, and put it in SIZE
+ bytes of BUF. Returns NULL if the directory couldn't be determined or
+ SIZE was too small. If successful, returns BUF. In GNU, if BUF is
+ NULL, an array is allocated with `malloc'; the array is SIZE bytes long,
+ unless SIZE <= 0, in which case it is as big as necessary. */
+
+char *
+getcwd (buf, size)
+ char *buf;
+ size_t size;
+{
+ static const char dots[]
+ = "../../../../../../../../../../../../../../../../../../../../../../../\
+../../../../../../../../../../../../../../../../../../../../../../../../../../\
+../../../../../../../../../../../../../../../../../../../../../../../../../..";
+ const char *dotp, *dotlist;
+ size_t dotsize;
+ dev_t rootdev, thisdev;
+ ino_t rootino, thisino;
+ char *path;
+ register char *pathp;
+ struct stat st;
+
+ if (size == 0)
+ {
+ if (buf != NULL)
+ {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ size = PATH_MAX + 1;
+ }
+
+ if (buf != NULL)
+ path = buf;
+ else
+ {
+ path = malloc (size);
+ if (path == NULL)
+ return NULL;
+ }
+
+ pathp = path + size;
+ *--pathp = '\0';
+
+ if (__lstat (".", &st) < 0)
+ return NULL;
+ thisdev = st.st_dev;
+ thisino = st.st_ino;
+
+ if (__lstat ("/", &st) < 0)
+ return NULL;
+ rootdev = st.st_dev;
+ rootino = st.st_ino;
+
+ dotsize = sizeof (dots) - 1;
+ dotp = &dots[sizeof (dots)];
+ dotlist = dots;
+ while (!(thisdev == rootdev && thisino == rootino))
+ {
+ register DIR *dirstream;
+ register struct dirent *d;
+ dev_t dotdev;
+ ino_t dotino;
+ char mount_point;
+
+ /* Look at the parent directory. */
+ if (dotp == dotlist)
+ {
+ /* My, what a deep directory tree you have, Grandma. */
+ char *new;
+ if (dotlist == dots)
+ {
+ new = malloc (dotsize * 2 + 1);
+ if (new == NULL)
+ return NULL;
+ memcpy (new, dots, dotsize);
+ }
+ else
+ {
+ new = realloc ((__ptr_t) dotlist, dotsize * 2 + 1);
+ if (new == NULL)
+ goto lose;
+ }
+ memcpy (&new[dotsize], new, dotsize);
+ dotp = &new[dotsize];
+ dotsize *= 2;
+ new[dotsize] = '\0';
+ dotlist = new;
+ }
+
+ dotp -= 3;
+
+ /* Figure out if this directory is a mount point. */
+ if (__lstat (dotp, &st) < 0)
+ goto lose;
+ dotdev = st.st_dev;
+ dotino = st.st_ino;
+ mount_point = dotdev != thisdev;
+
+ /* Search for the last directory. */
+ dirstream = opendir (dotp);
+ if (dirstream == NULL)
+ goto lose;
+ while ((d = readdir (dirstream)) != NULL)
+ {
+ if (d->d_name[0] == '.' &&
+ (d->d_namlen == 1 || (d->d_namlen == 2 && d->d_name[1] == '.')))
+ continue;
+ if (mount_point || d->d_ino == thisino)
+ {
+ char *name = __alloca (dotlist + dotsize - dotp +
+ 1 + d->d_namlen + 1);
+ memcpy (name, dotp, dotlist + dotsize - dotp);
+ name[dotlist + dotsize - dotp] = '/';
+ memcpy (&name[dotlist + dotsize - dotp + 1],
+ d->d_name, d->d_namlen + 1);
+ if (__lstat (name, &st) < 0)
+ {
+ int save = errno;
+ (void) closedir (dirstream);
+ errno = save;
+ goto lose;
+ }
+ if (st.st_dev == thisdev && st.st_ino == thisino)
+ break;
+ }
+ }
+ if (d == NULL)
+ {
+ int save = errno;
+ (void) closedir (dirstream);
+ errno = save;
+ goto lose;
+ }
+ else
+ {
+ if (pathp - path < d->d_namlen + 1)
+ {
+ if (buf != NULL)
+ {
+ errno = ERANGE;
+ return NULL;
+ }
+ else
+ {
+ size *= 2;
+ buf = realloc (path, size);
+ if (buf == NULL)
+ {
+ (void) closedir (dirstream);
+ free (path);
+ errno = ENOMEM; /* closedir might have changed it. */
+ return NULL;
+ }
+ pathp = &buf[pathp - path];
+ path = buf;
+ }
+ }
+ pathp -= d->d_namlen;
+ (void) memcpy (pathp, d->d_name, d->d_namlen);
+ *--pathp = '/';
+ (void) closedir (dirstream);
+ }
+
+ thisdev = dotdev;
+ thisino = dotino;
+ }
+
+ if (pathp == &path[size - 1])
+ *--pathp = '/';
+
+ if (dotlist != dots)
+ free ((__ptr_t) dotlist);
+
+ memmove (path, pathp, path + size - pathp);
+ return path;
+
+ lose:
+ if (dotlist != dots)
+ free ((__ptr_t) dotlist);
+ return NULL;
+}
diff --git a/sysdeps/posix/getdtsz.c b/sysdeps/posix/getdtsz.c
new file mode 100644
index 0000000..2080dc7
--- /dev/null
+++ b/sysdeps/posix/getdtsz.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 1991, 1993, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <unistd.h>
+
+extern long int EXFUN(__sysconf, (int));
+
+/* Return the maximum number of file descriptors
+ the current process could possibly have. */
+int
+DEFUN_VOID(__getdtablesize)
+{
+ return __sysconf (_SC_OPEN_MAX);
+}
+
+weak_alias (__getdtablesize, getdtablesize)
diff --git a/sysdeps/posix/getpagesize.c b/sysdeps/posix/getpagesize.c
new file mode 100644
index 0000000..4deb208
--- /dev/null
+++ b/sysdeps/posix/getpagesize.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
+ Contributed by Brendan Kehoe (brendan@cygnus.com).
+
+The GNU C Library is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with the GNU C Library; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <stddef.h>
+#include <unistd.h>
+
+extern long int EXFUN(__sysconf, (int));
+
+/* Return the system page size. */
+size_t
+DEFUN_VOID(__getpagesize)
+{
+ return __sysconf (_SC_PAGESIZE);
+}
+
+weak_alias (__getpagesize, getpagesize)
diff --git a/sysdeps/posix/gettimeofday.c b/sysdeps/posix/gettimeofday.c
new file mode 100644
index 0000000..a4bb38a
--- /dev/null
+++ b/sysdeps/posix/gettimeofday.c
@@ -0,0 +1,75 @@
+/* Copyright (C) 1991, 1992, 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <time.h>
+#include <sys/time.h>
+
+#ifndef HAVE_GNU_LD
+#define __daylight daylight
+#define __timezone timezone
+#define __tzname tzname
+#endif
+
+
+/* Get the current time of day and timezone information,
+ putting it into *TV and *TZ. If TZ is NULL, *TZ is not filled.
+ Returns 0 on success, -1 on errors. */
+int
+DEFUN(__gettimeofday, (tv, tz),
+ struct timeval *tv AND struct timezone *tz)
+{
+ if (tv == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ tv->tv_sec = (long int) time ((time_t *) NULL);
+ tv->tv_usec = 0L;
+
+ if (tz != NULL)
+ {
+ CONST time_t timer = tv->tv_sec;
+ CONST struct tm *tm;
+
+ CONST long int save_timezone = __timezone;
+ CONST long int save_daylight = __daylight;
+ char *save_tzname[2];
+ save_tzname[0] = __tzname[0];
+ save_tzname[1] = __tzname[1];
+
+ tm = localtime (&timer);
+
+ tz->tz_minuteswest = __timezone / 60;
+ tz->tz_dsttime = __daylight;
+
+ __timezone = save_timezone;
+ __daylight = save_daylight;
+ __tzname[0] = save_tzname[0];
+ __tzname[1] = save_tzname[1];
+
+ if (tm == NULL)
+ return -1;
+ }
+
+ return 0;
+}
+
+weak_alias (__gettimeofday, gettimeofday)
diff --git a/sysdeps/posix/isatty.c b/sysdeps/posix/isatty.c
new file mode 100644
index 0000000..7536b1e
--- /dev/null
+++ b/sysdeps/posix/isatty.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 1991, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <termios.h>
+
+/* Return 1 if FD is a terminal, 0 if not. */
+int
+DEFUN(__isatty, (fd), int fd)
+{
+ int save;
+ int is_tty;
+ struct termios term;
+
+ save = errno;
+ is_tty = __tcgetattr(fd, &term) == 0;
+ errno = save;
+
+ return is_tty;
+}
+
+weak_alias (__isatty, isatty)
diff --git a/sysdeps/posix/killpg.c b/sysdeps/posix/killpg.c
new file mode 100644
index 0000000..0c70dd2
--- /dev/null
+++ b/sysdeps/posix/killpg.c
@@ -0,0 +1,37 @@
+/* Copyright (C) 1991, 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <signal.h>
+
+
+/* Send SIG to all processes in process group PGRP.
+ If PGRP is zero, send SIG to all processes in
+ the current process's process group. */
+int
+DEFUN(killpg, (pgrp, sig), __pid_t pgrp AND int sig)
+{
+ if (pgrp < 0)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ return __kill (- pgrp, sig);
+}
diff --git a/sysdeps/posix/libc_fatal.c b/sysdeps/posix/libc_fatal.c
new file mode 100644
index 0000000..5539516
--- /dev/null
+++ b/sysdeps/posix/libc_fatal.c
@@ -0,0 +1,56 @@
+/* Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sysdep.h>
+
+#ifdef FATAL_PREPARE_INCLUDE
+#include FATAL_PREPARE_INCLUDE
+#endif
+
+/* Abort with an error message. */
+void
+DEFUN(__libc_fatal, (message), CONST char *message)
+{
+ size_t len = strlen (message);
+
+#ifdef FATAL_PREPARE
+ FATAL_PREPARE;
+#endif
+
+ while (len > 0)
+ {
+ register int count = __write (STDERR_FILENO, message, len);
+ if (count > 0)
+ {
+ message += count;
+ len -= count;
+ }
+ else if (count < 0
+#ifdef EINTR
+ && errno != EINTR
+#endif
+ )
+ break;
+ }
+
+ abort ();
+}
diff --git a/sysdeps/posix/mk-stdiolim.c b/sysdeps/posix/mk-stdiolim.c
new file mode 100644
index 0000000..da78a98
--- /dev/null
+++ b/sysdeps/posix/mk-stdiolim.c
@@ -0,0 +1,71 @@
+/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <posix1_lim.h>
+
+int
+main()
+{
+ /* These values correspond to the code in sysdeps/posix/tempname.c.
+ Change the values here if you change that code. */
+ printf("#define L_tmpnam %u\n", sizeof("/usr/tmp/") + 8);
+ printf("#define TMP_MAX %u\n", 62 * 62 * 62);
+
+ puts ("#ifdef __USE_POSIX");
+ printf("#define L_ctermid %u\n", sizeof("/dev/tty"));
+ printf("#define L_cuserid 9\n");
+ puts ("#endif");
+
+ /* POSIX does not require that OPEN_MAX and PATH_MAX be defined, so
+ <local_lim.h> will not define them if they are run-time variant (which
+ is the case in the Hurd). ANSI still requires that FOPEN_MAX and
+ FILENAME_MAX be defined, however. */
+
+ printf("#define FOPEN_MAX %u\n",
+#ifdef OPEN_MAX
+
+ OPEN_MAX
+#else
+ /* This is the minimum number of files that the implementation
+ guarantees can be open simultaneously. OPEN_MAX not being
+ defined means the maximum is run-time variant; but POSIX.1
+ requires that it never be less than _POSIX_OPEN_MAX, so that is
+ a good minimum to use. */
+ _POSIX_OPEN_MAX
+#endif
+
+ );
+
+ printf("#define FILENAME_MAX %u\n",
+#ifdef PATH_MAX
+ PATH_MAX
+#else
+ /* This is supposed to be the size needed to hold the longest file
+ name string the implementation guarantees can be opened.
+ PATH_MAX not being defined means the actual limit on the length
+ of a file name is runtime-variant (or it is unlimited). ANSI
+ says in such a case FILENAME_MAX should be a good size to
+ allocate for a file name string. POSIX.1 guarantees that a
+ file name up to _POSIX_PATH_MAX chars long can be opened, so
+ this value must be at least that. */
+ 1024 /* _POSIX_PATH_MAX is 255. */
+#endif
+ );
+
+ exit(0);
+}
diff --git a/sysdeps/posix/mkstemp.c b/sysdeps/posix/mkstemp.c
new file mode 100644
index 0000000..9f4f68d
--- /dev/null
+++ b/sysdeps/posix/mkstemp.c
@@ -0,0 +1,64 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <string.h>
+#include <errno.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+/* Generate a unique temporary file name from TEMPLATE.
+ The last six characters of TEMPLATE must be "XXXXXX";
+ they are replaced with a string that makes the filename unique.
+ Returns a file descriptor open on the file for reading and writing. */
+int
+DEFUN(mkstemp, (template), char *template)
+{
+ static CONST char letters[]
+ = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+ size_t len;
+ size_t i;
+
+ len = strlen (template);
+ if (len < 6 || strcmp (&template[len - 6], "XXXXXX"))
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (sprintf (&template[len - 5], "%.5u",
+ (unsigned int) getpid () % 100000) != 5)
+ /* Inconceivable lossage. */
+ return -1;
+
+ for (i = 0; i < sizeof (letters); ++i)
+ {
+ int fd;
+
+ template[len - 6] = letters[i];
+
+ fd = open (template, O_RDWR|O_CREAT|O_EXCL, 0666);
+ if (fd >= 0)
+ return fd;
+ }
+
+ /* We return the null string if we can't find a unique file name. */
+ template[0] = '\0';
+ return -1;
+}
diff --git a/sysdeps/posix/mktemp.c b/sysdeps/posix/mktemp.c
new file mode 100644
index 0000000..c3aae36
--- /dev/null
+++ b/sysdeps/posix/mktemp.c
@@ -0,0 +1,64 @@
+/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+/* Generate a unique temporary file name from TEMPLATE.
+ The last six characters of TEMPLATE must be "XXXXXX";
+ they are replaced with a string that makes the filename unique. */
+char *
+DEFUN(mktemp, (template), char *template)
+{
+ static CONST char letters[]
+ = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+ size_t len;
+ size_t i;
+
+ len = strlen (template);
+ if (len < 6 || strcmp (&template[len - 6], "XXXXXX"))
+ {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ if (sprintf (&template[len - 5], "%.5u",
+ (unsigned int) getpid () % 100000) != 5)
+ /* Inconceivable lossage. */
+ return NULL;
+
+ for (i = 0; i < sizeof (letters); ++i)
+ {
+ struct stat ignored;
+
+ template[len - 6] = letters[i];
+
+ if (stat (template, &ignored) < 0 && errno == ENOENT)
+ /* The file does not exist. So return this name. */
+ return template;
+ }
+
+ /* We return the null string if we can't find a unique file name. */
+ template[0] = '\0';
+ return template;
+}
diff --git a/sysdeps/posix/pipestream.c b/sysdeps/posix/pipestream.c
new file mode 100644
index 0000000..53595f5
--- /dev/null
+++ b/sysdeps/posix/pipestream.c
@@ -0,0 +1,223 @@
+/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <stddef.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#define SH_PATH "/bin/sh" /* Shell to run. */
+#define SH_NAME "sh" /* Name to give it. */
+
+/* Structure describing a popen child. */
+struct child
+ {
+ pid_t pid; /* PID of the child. */
+ __ptr_t cookie; /* Original cookie from fdopen. */
+ __io_functions funcs; /* Original functions from fdopen. */
+ };
+
+/* io_functions for pipe streams.
+ These all simply call the corresponding
+ original function with the original cookie. */
+
+#define FUNC(type, name, args) \
+ static type DEFUN(__CONCAT(child_,name), args, __CONCAT(name,decl)) \
+ { \
+ struct child *c = (struct child *) cookie; \
+ { \
+ __ptr_t cookie = c->cookie; \
+ return (*c->funcs.__CONCAT(__,name)) args; \
+ } \
+ }
+
+#define readdecl PTR cookie AND register char *buf AND register size_t n
+FUNC (int, read, (cookie, buf, n))
+#define writedecl PTR cookie AND register CONST char *buf AND register size_t n
+FUNC (int, write, (cookie, buf, n))
+#define seekdecl PTR cookie AND fpos_t *pos AND int whence
+FUNC (int, seek, (cookie, pos, whence))
+#define closedecl PTR cookie
+FUNC (int, close, (cookie))
+#define filenodecl PTR cookie
+FUNC (int, fileno, (cookie))
+
+static const __io_functions child_funcs
+ = { child_read, child_write, child_seek, child_close, child_fileno };
+
+/* Open a new stream that is a one-way pipe to a
+ child process running the given shell command. */
+FILE *
+DEFUN(popen, (command, mode), CONST char *command AND CONST char *mode)
+{
+ pid_t pid;
+ int pipedes[2];
+ FILE *stream;
+ struct child *child;
+
+ if (command == NULL || mode == NULL || (*mode != 'r' && *mode != 'w'))
+ {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ /* Create the pipe. */
+ if (pipe(pipedes) < 0)
+ return NULL;
+
+ /* Fork off the child. */
+ pid = __vfork ();
+ if (pid == (pid_t) -1)
+ {
+ /* The fork failed. */
+ (void) close (pipedes[0]);
+ (void) close (pipedes[1]);
+ return NULL;
+ }
+ else if (pid == (pid_t) 0)
+ {
+ /* We are the child side. Make the write side of
+ the pipe be stdin or the read side be stdout. */
+
+ CONST char *new_argv[4];
+
+ if ((*mode == 'w' ? dup2(pipedes[STDIN_FILENO], STDIN_FILENO) :
+ dup2(pipedes[STDOUT_FILENO], STDOUT_FILENO)) < 0)
+ _exit(127);
+
+ /* Close the pipe descriptors. */
+ (void) close(pipedes[STDIN_FILENO]);
+ (void) close(pipedes[STDOUT_FILENO]);
+
+ /* Exec the shell. */
+ new_argv[0] = SH_NAME;
+ new_argv[1] = "-c";
+ new_argv[2] = command;
+ new_argv[3] = NULL;
+ (void) execve(SH_PATH, (char *CONST *) new_argv, environ);
+ /* Die if it failed. */
+ _exit(127);
+ }
+
+ /* We are the parent side. */
+
+ /* Close the irrelevant side of the pipe and open the relevant side as a
+ new stream. Mark our side of the pipe to close on exec, so new children
+ won't see it. */
+ if (*mode == 'r')
+ {
+ (void) close (pipedes[STDOUT_FILENO]);
+ (void) fcntl (pipedes[STDIN_FILENO], F_SETFD, FD_CLOEXEC);
+ stream = fdopen (pipedes[STDIN_FILENO], mode);
+ }
+ else
+ {
+ (void) close (pipedes[STDIN_FILENO]);
+ (void) fcntl (pipedes[STDOUT_FILENO], F_SETFD, FD_CLOEXEC);
+ stream = fdopen (pipedes[STDOUT_FILENO], mode);
+ }
+
+ if (stream == NULL)
+ goto error;
+
+ child = (struct child *) malloc (sizeof (struct child));
+ if (child == NULL)
+ goto error;
+
+ {
+ /* Make sure STREAM has its functions set before
+ we try to squirrel them away in CHILD. */
+ extern void __stdio_check_funcs __P ((FILE *));
+ __stdio_check_funcs (stream);
+ }
+
+ child->pid = pid;
+ child->cookie = stream->__cookie;
+ child->funcs = stream->__io_funcs;
+ stream->__cookie = (PTR) child;
+ stream->__io_funcs = child_funcs;
+ stream->__ispipe = 1;
+ return stream;
+
+ error:
+ {
+ /* The stream couldn't be opened or the child structure couldn't be
+ allocated. Kill the child and close the other side of the pipe. */
+ int save = errno;
+ (void) kill (pid, SIGKILL);
+ if (stream == NULL)
+ (void) close (pipedes[*mode == 'r' ? STDOUT_FILENO : STDIN_FILENO]);
+ else
+ (void) fclose (stream);
+#ifndef NO_WAITPID
+ (void) waitpid (pid, (int *) NULL, 0);
+#else
+ {
+ pid_t dead;
+ do
+ dead = wait ((int *) NULL);
+ while (dead > 0 && dead != pid);
+ }
+#endif
+ errno = save;
+ return NULL;
+ }
+}
+
+/* Close a stream opened by popen and return its status.
+ Returns -1 if the stream was not opened by popen. */
+int
+DEFUN(pclose, (stream), register FILE *stream)
+{
+ struct child *c;
+ pid_t pid, dead;
+ int status;
+
+ if (!__validfp(stream) || !stream->__ispipe)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ c = (struct child *) stream->__cookie;
+ pid = c->pid;
+ stream->__cookie = c->cookie;
+ stream->__io_funcs = c->funcs;
+ free ((PTR) c);
+ stream->__ispipe = 0;
+ if (fclose (stream))
+ return -1;
+
+#ifndef NO_WAITPID
+ dead = waitpid (pid, &status, 0);
+#else
+ do
+ dead = wait (&status);
+ while (dead > 0 && dead != pid);
+#endif
+ if (dead != pid)
+ status = -1;
+
+ return status;
+}
diff --git a/sysdeps/posix/raise.c b/sysdeps/posix/raise.c
new file mode 100644
index 0000000..159fdd5
--- /dev/null
+++ b/sysdeps/posix/raise.c
@@ -0,0 +1,28 @@
+/* Copyright (C) 1991 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <signal.h>
+#include <unistd.h>
+
+/* Raise the signal SIG. */
+int
+DEFUN(raise, (sig), int sig)
+{
+ return __kill(__getpid(), sig);
+}
diff --git a/sysdeps/posix/readv.c b/sysdeps/posix/readv.c
new file mode 100644
index 0000000..5f61e61
--- /dev/null
+++ b/sysdeps/posix/readv.c
@@ -0,0 +1,68 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/uio.h>
+
+/* Read data from file descriptor FD, and put the result in the
+ buffers described by VECTOR, which is a vector of COUNT `struct iovec's.
+ The buffers are filled in the order specified.
+ Operates just like `read' (see <unistd.h>) except that data are
+ put in VECTOR instead of a contiguous buffer. */
+int
+DEFUN(readv, (fd, vector, count),
+ int fd AND CONST struct iovec *vector AND size_t count)
+{
+ char *buffer;
+ size_t bytes;
+ int bytes_read;
+ register size_t i;
+
+ /* Find the total number of bytes to be read. */
+ bytes = 0;
+ for (i = 0; i < count; ++i)
+ bytes += vector[i].iov_len;
+
+ /* Allocate a temporary buffer to hold the data. */
+ buffer = (char *) __alloca(bytes);
+
+ /* Read the data. */
+ bytes_read = read(fd, buffer, bytes);
+ if (bytes_read <= 0)
+ return -1;
+
+ /* Copy the data from BUFFER into the memory specified by VECTOR. */
+ bytes = bytes_read;
+ for (i = 0; i < count; ++i)
+ {
+#define min(a, b) ((a) > (b) ? (b) : (a))
+ size_t copy = min(vector[i].iov_len, bytes);
+
+ (void) memcpy((PTR) vector[i].iov_base, (PTR) buffer, copy);
+
+ buffer += copy;
+ bytes -= copy;
+ if (bytes == 0)
+ break;
+ }
+
+ return bytes_read;
+}
diff --git a/sysdeps/posix/remove.c b/sysdeps/posix/remove.c
new file mode 100644
index 0000000..66414c9
--- /dev/null
+++ b/sysdeps/posix/remove.c
@@ -0,0 +1,40 @@
+/* ANSI C `remove' function to delete a file or directory. POSIX.1 version.
+Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int
+remove (file)
+ const char *file;
+{
+ int save;
+
+ save = errno;
+ if (__rmdir (file) == 0)
+ return 0;
+ else if (errno == ENOTDIR && __unlink (file) == 0)
+ {
+ errno = save;
+ return 0;
+ }
+
+ return -1;
+}
diff --git a/sysdeps/posix/rename.c b/sysdeps/posix/rename.c
new file mode 100644
index 0000000..3245f9c
--- /dev/null
+++ b/sysdeps/posix/rename.c
@@ -0,0 +1,50 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+
+/* Rename the file OLD to NEW. */
+int
+DEFUN(rename, (old, new), CONST char *old AND CONST char *new)
+{
+ int save = errno;
+ if (__link(old, new) < 0)
+ {
+ if (errno == EEXIST)
+ {
+ errno = save;
+ /* Race condition, required for 1003.1 conformance. */
+ if (__unlink(new) < 0 ||
+ __link(old, new) < 0)
+ return -1;
+ }
+ else
+ return -1;
+ }
+ if (__unlink(old) < 0)
+ {
+ save = errno;
+ if (__unlink(new) == 0)
+ errno = save;
+ return -1;
+ }
+ return 0;
+}
diff --git a/sysdeps/posix/sigblock.c b/sysdeps/posix/sigblock.c
new file mode 100644
index 0000000..411a952
--- /dev/null
+++ b/sysdeps/posix/sigblock.c
@@ -0,0 +1,55 @@
+/* Copyright (C) 1991, 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <signal.h>
+
+/* Block signals in MASK, returning the old mask. */
+int
+DEFUN(__sigblock, (mask), int mask)
+{
+ register int sig;
+ sigset_t set, oset;
+
+ if (__sigemptyset(&set) < 0)
+ return -1;
+
+ if (sizeof (mask) == sizeof (set))
+ *(int *) &set = mask;
+ else
+ for (sig = 1; sig < NSIG; ++sig)
+ if ((mask & sigmask(sig)) &&
+ __sigaddset(&set, sig) < 0)
+ return -1;
+
+ if (sigprocmask(SIG_BLOCK, &set, &oset) < 0)
+ return -1;
+
+ mask = 0;
+ if (sizeof (mask) == sizeof (oset))
+ mask = *(int *) &oset;
+ else
+ for (sig = 1; sig < NSIG; ++sig)
+ if (__sigismember(&oset, sig))
+ mask |= sigmask(sig);
+
+ return mask;
+}
+
+weak_alias (__sigblock, sigblock)
diff --git a/sysdeps/posix/sigintr.c b/sysdeps/posix/sigintr.c
new file mode 100644
index 0000000..441c643
--- /dev/null
+++ b/sysdeps/posix/sigintr.c
@@ -0,0 +1,57 @@
+/* Copyright (C) 1992, 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <stddef.h>
+#include <signal.h>
+#include <errno.h>
+
+/* If INTERRUPT is nonzero, make signal SIG interrupt system calls
+ (causing them to fail with EINTR); if INTERRUPT is zero, make system
+ calls be restarted after signal SIG. */
+int
+DEFUN(siginterrupt, (sig, interrupt),
+ int sig AND int interrupt)
+{
+#ifdef SA_RESTART
+ extern sigset_t _sigintr; /* Defined in signal.c. */
+ struct sigaction action;
+
+ if (__sigaction (sig, (struct sigaction *) NULL, &action) < 0)
+ return -1;
+
+ if (interrupt)
+ {
+ __sigaddset (&_sigintr, sig);
+ action.sa_flags &= ~SA_RESTART;
+ }
+ else
+ {
+ __sigdelset (&_sigintr, sig);
+ action.sa_flags |= SA_RESTART;
+ }
+
+ if (__sigaction (sig, &action, (struct sigaction *) NULL) < 0)
+ return -1;
+
+ return 0;
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
diff --git a/sysdeps/posix/signal.c b/sysdeps/posix/signal.c
new file mode 100644
index 0000000..f9ae47b
--- /dev/null
+++ b/sysdeps/posix/signal.c
@@ -0,0 +1,47 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <signal.h>
+
+
+sigset_t _sigintr; /* Set by siginterrupt. */
+
+/* Set the handler for the signal SIG to HANDLER,
+ returning the old handler, or SIG_ERR on error. */
+__sighandler_t
+DEFUN(signal, (sig, handler), int sig AND __sighandler_t handler)
+{
+ struct sigaction act, oact;
+
+ if (handler == SIG_ERR)
+ {
+ errno = EINVAL;
+ return SIG_ERR;
+ }
+
+ act.sa_handler = handler;
+ if (__sigemptyset (&act.sa_mask) < 0)
+ return SIG_ERR;
+ act.sa_flags = __sigismember (&_sigintr, sig) ? 0 : SA_RESTART;
+ if (__sigaction (sig, &act, &oact) < 0)
+ return SIG_ERR;
+
+ return oact.sa_handler;
+}
diff --git a/sysdeps/posix/sigpause.c b/sysdeps/posix/sigpause.c
new file mode 100644
index 0000000..97716d3
--- /dev/null
+++ b/sysdeps/posix/sigpause.c
@@ -0,0 +1,45 @@
+/* Copyright (C) 1991, 1992, 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <signal.h>
+
+/* Set the mask of blocked signals to MASK,
+ wait for a signal to arrive, and then restore the mask. */
+int
+DEFUN(__sigpause, (mask), int mask)
+{
+ sigset_t set;
+ int sig;
+
+ if (__sigemptyset (&set) < 0)
+ return -1;
+
+ if (sizeof (mask) == sizeof (set))
+ *(int *) &set = mask;
+ else
+ for (sig = 1; sig < NSIG; ++sig)
+ if ((mask & sigmask(sig)) &&
+ __sigaddset(&set, sig) < 0)
+ return -1;
+
+ return sigsuspend (&set);
+}
+
+weak_alias (__sigpause, sigpause)
diff --git a/sysdeps/posix/sigsetmask.c b/sysdeps/posix/sigsetmask.c
new file mode 100644
index 0000000..12e77a6
--- /dev/null
+++ b/sysdeps/posix/sigsetmask.c
@@ -0,0 +1,55 @@
+/* Copyright (C) 1991, 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <signal.h>
+
+/* Set the mask of blocked signals to MASK, returning the old mask. */
+int
+DEFUN(__sigsetmask, (mask), int mask)
+{
+ register int sig;
+ sigset_t set, oset;
+
+ if (__sigemptyset(&set) < 0)
+ return -1;
+
+ if (sizeof (mask) == sizeof (set))
+ *(int *) &set = mask;
+ else
+ for (sig = 1; sig < NSIG; ++sig)
+ if ((mask & sigmask(sig)) &&
+ __sigaddset(&set, sig) < 0)
+ return -1;
+
+ if (sigprocmask(SIG_SETMASK, &set, &oset) < 0)
+ return -1;
+
+ mask = 0;
+ if (sizeof (mask) == sizeof (oset))
+ mask = *(int *) &oset;
+ else
+ for (sig = 1; sig < NSIG; ++sig)
+ if (__sigismember(&oset, sig))
+ mask |= sigmask(sig);
+
+ return mask;
+}
+
+weak_alias (__sigsetmask, sigsetmask)
diff --git a/sysdeps/posix/sigsuspend.c b/sysdeps/posix/sigsuspend.c
new file mode 100644
index 0000000..7713153
--- /dev/null
+++ b/sysdeps/posix/sigsuspend.c
@@ -0,0 +1,51 @@
+/* Copyright (C) 1991 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <signal.h>
+#include <stddef.h>
+#include <unistd.h>
+
+
+/* Change the set of blocked signals to SET,
+ wait until a signal arrives, and restore the set of blocked signals. */
+int
+DEFUN(sigsuspend, (set), CONST sigset_t *set)
+{
+ sigset_t oset;
+ int save;
+
+ if (set == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (sigprocmask(SIG_SETMASK, set, &oset) < 0)
+ return -1;
+
+ (void) pause();
+ save = errno;
+
+ if (sigprocmask(SIG_SETMASK, &oset, (sigset_t *) NULL) < 0)
+ return -1;
+
+ errno = save;
+ return -1;
+}
diff --git a/sysdeps/posix/sigvec.c b/sysdeps/posix/sigvec.c
new file mode 100644
index 0000000..4aef22a
--- /dev/null
+++ b/sysdeps/posix/sigvec.c
@@ -0,0 +1,162 @@
+/* Copyright (C) 1991, 1992, 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <signal.h>
+#include <errno.h>
+#include <stddef.h>
+
+
+/* We use a wrapper handler to support SV_RESETHAND. */
+
+static __sighandler_t wrapped_handlers[NSIG];
+static sigset_t wrapped_masks[NSIG];
+
+static void
+DEFUN(wrapper_handler, (sig), int sig)
+{
+ int save;
+ struct sigaction act;
+
+ act.sa_handler = SIG_DFL;
+ act.sa_mask = wrapped_masks[sig];
+ act.sa_flags = 0;
+ save = errno;
+ (void) __sigaction(sig, &act, (struct sigaction *) NULL);
+ errno = save;
+
+ (*wrapped_handlers[sig])(sig);
+}
+
+static
+#ifdef __GNUC__
+inline
+#endif
+int
+DEFUN(convert_mask, (set, mask), sigset_t *set AND CONST int mask)
+{
+ register int sig;
+
+ if (sizeof(*set) == sizeof(mask))
+ {
+ *(int *) set = mask;
+ return 0;
+ }
+
+ if (__sigemptyset(set) < 0)
+ return -1;
+
+ for (sig = 1; sig < NSIG; ++sig)
+ if (mask & sigmask(sig))
+ if (__sigaddset(set, sig) < 0)
+ return -1;
+
+ return 0;
+}
+
+/* If VEC is non-NULL, set the handler for SIG to the `sv_handler' member
+ of VEC. The signals in `sv_mask' will be blocked while the handler runs.
+ If the SV_RESETHAND bit is set in `sv_flags', the handler for SIG will be
+ reset to SIG_DFL before `sv_handler' is entered. If OVEC is non-NULL,
+ it is filled in with the old information for SIG. */
+int
+DEFUN(__sigvec, (sig, vec, ovec),
+ int sig AND CONST struct sigvec *vec AND struct sigvec *ovec)
+{
+ struct sigaction old;
+
+ if (vec == NULL || !(vec->sv_flags & SV_RESETHAND))
+ {
+ struct sigaction new, *n;
+
+ if (vec == NULL)
+ n = NULL;
+ else
+ {
+ n = &new;
+ n->sa_handler = vec->sv_handler;
+ if (convert_mask (&n->sa_mask, vec->sv_mask) < 0)
+ return -1;
+ n->sa_flags = 0;
+
+ if (vec->sv_flags & SV_ONSTACK)
+ {
+#ifdef SA_ONSTACK
+ n->sa_flags |= SA_ONSTACK;
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+ }
+#ifdef SA_RESTART
+ if (!(vec->sv_flags & SV_INTERRUPT))
+ n->sa_flags |= SA_RESTART;
+#endif
+ }
+
+ if (__sigaction (sig, n, &old) < 0)
+ return -1;
+ }
+ else
+ {
+ struct sigaction wrapper;
+
+ wrapper.sa_handler = wrapper_handler;
+ wrapped_handlers[sig] = vec->sv_handler;
+ if (convert_mask (&wrapped_masks[sig], vec->sv_mask) < 0)
+ return -1;
+
+ if (__sigaction (sig, &wrapper, &old) < 0)
+ return -1;
+ }
+
+ if (ovec != NULL)
+ {
+ register int i;
+ int mask = 0;
+
+ if (sizeof (int) == sizeof (sigset_t))
+ mask = *(int *) &old.sa_mask;
+ else
+ for (i = 1; i < NSIG; ++i)
+ if (__sigismember(&old.sa_mask, i))
+ mask |= sigmask(i);
+
+ ovec->sv_mask = mask;
+ ovec->sv_flags = 0;
+#ifdef SA_ONSTACK
+ if (old.sa_flags & SA_ONSTACK)
+ ovec->sv_flags |= SV_ONSTACK;
+#endif
+#ifdef SA_RESTART
+ if (!(old.sa_flags & SA_RESTART))
+#endif
+ ovec->sv_flags |= SV_INTERRUPT;
+ if (old.sa_handler == wrapper_handler)
+ {
+ ovec->sv_flags |= SV_RESETHAND;
+ ovec->sv_handler = wrapped_handlers[sig];
+ }
+ else
+ ovec->sv_handler = old.sa_handler;
+ }
+
+ return 0;
+}
+
+weak_alias (__sigvec, sigvec)
diff --git a/sysdeps/posix/sleep.c b/sysdeps/posix/sleep.c
new file mode 100644
index 0000000..36864cb
--- /dev/null
+++ b/sysdeps/posix/sleep.c
@@ -0,0 +1,106 @@
+/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <signal.h>
+#include <time.h>
+#include <unistd.h>
+#include <errno.h>
+
+
+/* SIGALRM signal handler for `sleep'. This does nothing but return,
+ but SIG_IGN isn't supposed to break `pause'. */
+static void
+DEFUN(sleep_handler, (sig), int sig)
+{
+ return;
+}
+
+/* Make the process sleep for SECONDS seconds, or until a signal arrives
+ and is not ignored. The function returns the number of seconds less
+ than SECONDS which it actually slept (zero if it slept the full time).
+ If a signal handler does a `longjmp' or modifies the handling of the
+ SIGALRM signal while inside `sleep' call, the handling of the SIGALRM
+ signal afterwards is undefined. There is no return value to indicate
+ error, but if `sleep' returns SECONDS, it probably didn't work. */
+unsigned int
+DEFUN(sleep, (seconds), unsigned int seconds)
+{
+ unsigned int remaining, slept;
+ time_t before, after;
+ sigset_t set, oset;
+ struct sigaction act, oact;
+ int save = errno;
+
+ if (seconds == 0)
+ return 0;
+
+ /* Block SIGALRM signals while frobbing the handler. */
+ if (sigemptyset (&set) < 0 ||
+ sigaddset (&set, SIGALRM) < 0 ||
+ sigprocmask (SIG_BLOCK, &set, &oset))
+ return seconds;
+
+ act.sa_handler = sleep_handler;
+ act.sa_flags = 0;
+ if (sigemptyset (&act.sa_mask) < 0 ||
+ sigaction (SIGALRM, &act, &oact) < 0)
+ return seconds;
+
+ before = time ((time_t *) NULL);
+ remaining = alarm (seconds);
+
+ if (remaining > 0 && remaining < seconds)
+ {
+ /* The user's alarm will expire before our own would.
+ Restore the user's signal action state and let his alarm happen. */
+ (void) sigaction (SIGALRM, &oact, (struct sigaction *) NULL);
+ alarm (remaining); /* Restore sooner alarm. */
+ sigsuspend (&oset); /* Wait for it to go off. */
+ after = time ((time_t *) NULL);
+ }
+ else
+ {
+ /* Atomically restore the old signal mask
+ (which had better not block SIGALRM),
+ and wait for a signal to arrive. */
+ sigsuspend (&oset);
+
+ after = time ((time_t *) NULL);
+
+ /* Restore the old signal action state. */
+ (void) sigaction (SIGALRM, &oact, (struct sigaction *) NULL);
+ }
+
+ /* Notice how long we actually slept. */
+ slept = after - before;
+
+ /* Restore the user's alarm if we have not already past it.
+ If we have, be sure to turn off the alarm in case a signal
+ other than SIGALRM was what woke us up. */
+ (void) alarm (remaining > slept ? remaining - slept : 0);
+
+ /* Restore the original signal mask. */
+ (void) sigprocmask (SIG_SETMASK, &oset, (sigset_t *) NULL);
+
+ /* Restore the `errno' value we started with.
+ Some of the calls we made might have failed, but we didn't care. */
+ errno = save;
+
+ return slept > seconds ? 0 : seconds - slept;
+}
diff --git a/sysdeps/posix/stdio_init.c b/sysdeps/posix/stdio_init.c
new file mode 100644
index 0000000..422d9b6
--- /dev/null
+++ b/sysdeps/posix/stdio_init.c
@@ -0,0 +1,70 @@
+/* Copyright (C) 1991, 1992, 1993, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+/* Initialize STREAM as necessary.
+ This may change I/O functions, give a buffer, etc.
+ If no buffer is allocated, but the bufsize is set,
+ the bufsize will be used to allocate the buffer. */
+void
+DEFUN(__stdio_init_stream, (stream), FILE *stream)
+{
+ register CONST int fd = (int) stream->__cookie;
+ struct stat statb;
+
+ if (stream->__buffer != NULL || stream->__userbuf)
+ /* If's unbuffered by request, we can't do anything useful. */
+ return;
+
+ /* Find out what sort of file this is. */
+ if (__fstat (fd, &statb) < 0)
+ return;
+
+ if (S_ISCHR (statb.st_mode))
+ {
+ /* It's a character device.
+ Make it line-buffered if it's a terminal. */
+ if (__isatty (fd))
+ {
+ stream->__linebuf = 1;
+
+ /* Unix terminal devices have the bad habit of claiming to be
+ seekable. On systems I have tried, seeking on a terminal
+ device seems to set its file position as specified, such that
+ a later tell says the same thing. This is in no way related
+ to actual seekability--the ability to seek back and read old
+ data. Unix terminal devices will let you "seek back", and
+ then read more new data from the terminal. I can think of
+ nothing to do about this lossage except to preemptively disable
+ seeking on terminal devices. */
+
+ stream->__io_funcs.__seek = NULL; /* Seeks get ESPIPE. */
+ }
+ }
+
+#ifdef _STATBUF_ST_BLKSIZE
+ /* Use the block-size field to determine
+ the system's optimal buffering size. */
+ stream->__bufsize = statb.st_blksize;
+#endif
+}
diff --git a/sysdeps/posix/sysconf.c b/sysdeps/posix/sysconf.c
new file mode 100644
index 0000000..7f4fbb7
--- /dev/null
+++ b/sysdeps/posix/sysconf.c
@@ -0,0 +1,183 @@
+/* Copyright (C) 1991, 1993, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <limits.h>
+#include <unistd.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
+
+extern int EXFUN(__getdtablesize, (NOARGS));
+extern size_t EXFUN(__getpagesize, (NOARGS));
+
+/* Get the value of the system variable NAME. */
+long int
+DEFUN(__sysconf, (name), int name)
+{
+ switch (name)
+ {
+ default:
+ errno = EINVAL;
+ return -1;
+
+ case _SC_ARG_MAX:
+#ifdef ARG_MAX
+ return ARG_MAX;
+#else
+ return -1;
+#endif
+
+ case _SC_CHILD_MAX:
+#ifdef CHILD_MAX
+ return CHILD_MAX;
+#else
+ return -1;
+#endif
+
+ case _SC_CLK_TCK:
+ return 60;
+
+ case _SC_NGROUPS_MAX:
+#ifdef NGROUPS_MAX
+ return NGROUPS_MAX;
+#else
+ return -1;
+#endif
+
+ case _SC_OPEN_MAX:
+ return __getdtablesize ();
+
+ case _SC_STREAM_MAX:
+ return FOPEN_MAX;
+
+ case _SC_TZNAME_MAX:
+ return __tzname_max ();
+
+ case _SC_JOB_CONTROL:
+#ifdef _POSIX_JOB_CONTROL
+ return 1;
+#else
+ return -1;
+#endif
+ case _SC_SAVED_IDS:
+#ifdef _POSIX_SAVED_IDS
+ return 1;
+#else
+ return -1;
+#endif
+ case _SC_VERSION:
+ return _POSIX_VERSION;
+
+ case _SC_PAGESIZE:
+ return __getpagesize ();
+
+ case _SC_BC_BASE_MAX:
+#ifdef BC_BASE_MAX
+ return BC_BASE_MAX;
+#else
+ return -1;
+#endif
+
+ case _SC_BC_DIM_MAX:
+#ifdef BC_DIM_MAX
+ return BC_DIM_MAX;
+#else
+ return -1;
+#endif
+
+ case _SC_BC_SCALE_MAX:
+#ifdef BC_SCALE_MAX
+ return BC_SCALE_MAX;
+#else
+ return -1;
+#endif
+
+ case _SC_BC_STRING_MAX:
+#ifdef BC_STRING_MAX
+ return BC_STRING_MAX;
+#else
+ return -1;
+#endif
+
+ case _SC_EQUIV_CLASS_MAX:
+#ifdef EQUIV_CLASS_MAX
+ return EQUIV_CLASS_MAX;
+#else
+ return -1;
+#endif
+
+ case _SC_EXPR_NEST_MAX:
+#ifdef EXPR_NEST_MAX
+ return EXPR_NEST_MAX;
+#else
+ return -1;
+#endif
+
+ case _SC_LINE_MAX:
+#ifdef LINE_MAX
+ return LINE_MAX;
+#else
+ return -1;
+#endif
+
+ case _SC_RE_DUP_MAX:
+#ifdef RE_DUP_MAX
+ return RE_DUP_MAX;
+#else
+ return -1;
+#endif
+
+
+ case _SC_2_VERSION:
+ /* This is actually supposed to return the version
+ of the 1003.2 utilities on the system {POSIX2_VERSION}. */
+ return _POSIX2_C_VERSION;
+
+ case _SC_2_C_BIND:
+#ifdef _POSIX2_C_BIND
+ return _POSIX2_C_BIND;
+#else
+ return -1;
+#endif
+
+ case _SC_2_C_DEV:
+#ifdef _POSIX2_C_DEV
+ return _POSIX2_C_DEV;
+#else
+ return -1;
+#endif
+
+ case _SC_2_FORT_DEV:
+#ifdef _POSIX2_FORT_DEV
+ return _POSIX2_FORT_DEV;
+#else
+ return -1;
+#endif
+
+ case _SC_2_SW_DEV:
+#ifdef _POSIX2_SW_DEV
+ return _POSIX2_SW_DEV;
+#else
+ return -1;
+#endif
+ }
+}
+
+weak_alias (__sysconf, sysconf)
diff --git a/sysdeps/posix/system.c b/sysdeps/posix/system.c
new file mode 100644
index 0000000..69b004b
--- /dev/null
+++ b/sysdeps/posix/system.c
@@ -0,0 +1,145 @@
+/* Copyright (C) 1991, 1992, 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/wait.h>
+#include <signal.h>
+#include <sys/types.h>
+
+
+#ifndef HAVE_GNU_LD
+#define __environ environ
+#endif
+
+#define SHELL_PATH "/bin/sh" /* Path of the shell. */
+#define SHELL_NAME "sh" /* Name to give it. */
+
+/* Execute LINE as a shell command, returning its status. */
+int
+DEFUN(system, (line), register CONST char *line)
+{
+ int status, save;
+ pid_t pid;
+ struct sigaction sa, intr, quit;
+#ifndef WAITPID_CANNOT_BLOCK_SIGCHLD
+ sigset_t block, omask;
+#endif
+
+ if (line == NULL)
+ return 1;
+
+ sa.sa_handler = SIG_IGN;
+ sa.sa_flags = 0;
+ __sigemptyset (&sa.sa_mask);
+
+ if (__sigaction (SIGINT, &sa, &intr) < 0)
+ return -1;
+ if (__sigaction (SIGQUIT, &sa, &quit) < 0)
+ {
+ save = errno;
+ (void) __sigaction (SIGINT, &intr, (struct sigaction *) NULL);
+ errno = save;
+ return -1;
+ }
+
+#ifndef WAITPID_CANNOT_BLOCK_SIGCHLD
+
+/* SCO 3.2v4 has a bug where `waitpid' will never return if SIGCHLD is
+ blocked. This makes it impossible for `system' to be implemented in
+ compliance with POSIX.2-1992. They have acknowledged that this is a bug
+ but I have not seen nor heard of any forthcoming fix. */
+
+ __sigemptyset (&block);
+ __sigaddset (&block, SIGCHLD);
+ save = errno;
+ if (__sigprocmask (SIG_BLOCK, &block, &omask) < 0)
+ {
+ if (errno == ENOSYS)
+ errno = save;
+ else
+ {
+ save = errno;
+ (void) __sigaction (SIGINT, &intr, (struct sigaction *) NULL);
+ (void) __sigaction (SIGQUIT, &quit, (struct sigaction *) NULL);
+ errno = save;
+ return -1;
+ }
+ }
+#define UNBLOCK __sigprocmask (SIG_SETMASK, &omask, (sigset_t *) NULL)
+#else
+#define UNBLOCK 0
+#endif
+
+ pid = __vfork ();
+ if (pid == (pid_t) 0)
+ {
+ /* Child side. */
+ CONST char *new_argv[4];
+ new_argv[0] = SHELL_NAME;
+ new_argv[1] = "-c";
+ new_argv[2] = line;
+ new_argv[3] = NULL;
+
+ /* Restore the signals. */
+ (void) __sigaction (SIGINT, &intr, (struct sigaction *) NULL);
+ (void) __sigaction (SIGQUIT, &quit, (struct sigaction *) NULL);
+ (void) UNBLOCK;
+
+ /* Exec the shell. */
+ (void) __execve (SHELL_PATH, (char *CONST *) new_argv, __environ);
+ _exit (127);
+ }
+ else if (pid < (pid_t) 0)
+ /* The fork failed. */
+ status = -1;
+ else
+ /* Parent side. */
+#ifdef NO_WAITPID
+ {
+ pid_t child;
+ do
+ {
+ child = __wait (&status);
+ if (child <= -1)
+ {
+ status = -1;
+ break;
+ }
+ } while (child != pid);
+ }
+#else
+ if (__waitpid (pid, &status, 0) != pid)
+ status = -1;
+#endif
+
+ save = errno;
+ if ((__sigaction (SIGINT, &intr, (struct sigaction *) NULL) |
+ __sigaction (SIGQUIT, &quit, (struct sigaction *) NULL) |
+ UNBLOCK) != 0)
+ {
+ if (errno == ENOSYS)
+ errno = save;
+ else
+ return -1;
+ }
+
+ return status;
+}
diff --git a/sysdeps/posix/tempname.c b/sysdeps/posix/tempname.c
new file mode 100644
index 0000000..f2da66a
--- /dev/null
+++ b/sysdeps/posix/tempname.c
@@ -0,0 +1,208 @@
+/* Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+/* Return nonzero if DIR is an existent directory. */
+static int
+DEFUN(diraccess, (dir), CONST char *dir)
+{
+ struct stat buf;
+ return __stat (dir, &buf) == 0 && S_ISDIR (buf.st_mode);
+}
+
+/* Return nonzero if FILE exists. */
+static int
+DEFUN(exists, (file), CONST char *file)
+{
+ /* We can stat the file even if we can't read its data. */
+ struct stat st;
+ int save = errno;
+ if (__stat (file, &st) == 0)
+ return 1;
+ else
+ {
+ /* We report that the file exists if stat failed for a reason other
+ than nonexistence. In this case, it may or may not exist, and we
+ don't know; but reporting that it does exist will never cause any
+ trouble, while reporting that it doesn't exist when it does would
+ violate the interface of __stdio_gen_tempname. */
+ int exists = errno != ENOENT;
+ errno = save;
+ return exists;
+ }
+}
+
+
+/* These are the characters used in temporary filenames. */
+static CONST char letters[] =
+ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+
+/* Generate a temporary filename and return it (in a static buffer). If
+ STREAMPTR is not NULL, open a stream "w+b" on the file and set
+ *STREAMPTR to it. If DIR_SEARCH is nonzero, DIR and PFX are used as
+ described for tempnam. If not, a temporary filename in P_tmpdir with no
+ special prefix is generated. If LENPTR is not NULL, *LENPTR is set the
+ to length (including the terminating '\0') of the resultant filename,
+ which is returned. This goes through a cyclic pattern of all possible
+ filenames consisting of five decimal digits of the current pid and three
+ of the characters in `letters'. Data for tempnam and tmpnam is kept
+ separate, but when tempnam is using P_tmpdir and no prefix (i.e, it is
+ identical to tmpnam), the same data is used. Each potential filename is
+ tested for an already-existing file of the same name, and no name of an
+ existing file will be returned. When the cycle reaches its end
+ (12345ZZZ), NULL is returned. */
+char *
+DEFUN(__stdio_gen_tempname, (dir, pfx, dir_search, lenptr, streamptr),
+ CONST char *dir AND CONST char *pfx AND
+ int dir_search AND size_t *lenptr AND
+ FILE **streamptr)
+{
+ int saverrno = errno;
+ static CONST char tmpdir[] = P_tmpdir;
+ static size_t indices[2];
+ size_t *idx;
+ static char buf[FILENAME_MAX];
+ static pid_t oldpid = (pid_t) 0;
+ pid_t pid = __getpid();
+ register size_t len, plen, dlen;
+
+ if (dir_search)
+ {
+ register CONST char *d = getenv ("TMPDIR");
+ if (d != NULL && !diraccess (d))
+ d = NULL;
+ if (d == NULL && dir != NULL && diraccess (dir))
+ d = dir;
+ if (d == NULL && diraccess (tmpdir))
+ d = tmpdir;
+ if (d == NULL && diraccess ("/tmp"))
+ d = "/tmp";
+ if (d == NULL)
+ {
+ errno = ENOENT;
+ return NULL;
+ }
+ dir = d;
+ }
+ else
+ dir = tmpdir;
+
+ dlen = strlen (dir);
+
+ /* Remove trailing slashes from the directory name. */
+ while (dlen > 1 && dir[dlen - 1] == '/')
+ --dlen;
+
+ if (pfx != NULL && *pfx != '\0')
+ {
+ plen = strlen (pfx);
+ if (plen > 5)
+ plen = 5;
+ }
+ else
+ plen = 0;
+
+ if (dir != tmpdir && !strcmp (dir, tmpdir))
+ dir = tmpdir;
+ idx = &indices[(plen == 0 && dir == tmpdir) ? 1 : 0];
+
+ if (pid != oldpid)
+ {
+ oldpid = pid;
+ indices[0] = indices[1] = 0;
+ }
+
+ len = dlen + 1 + plen + 5 + 3;
+ while (*idx < ((sizeof (letters) - 1) * (sizeof (letters) - 1) *
+ (sizeof (letters) - 1)))
+ {
+ const size_t i = (*idx)++;
+
+ /* Construct a file name and see if it already exists.
+
+ We use a single counter in *IDX to cycle each of three
+ character positions through each of 62 possible letters. */
+
+ if (sizeof (buf) < len ||
+ sprintf (buf, "%.*s/%.*s%.5d%c%c%c",
+ (int) dlen, dir, (int) plen,
+ pfx, pid % 100000,
+ letters[i % (sizeof (letters) - 1)],
+ letters[(i / (sizeof (letters) - 1))
+ % (sizeof (letters) - 1)],
+ letters[(i / ((sizeof (letters) - 1) *
+ (sizeof (letters) - 1)))
+ % (sizeof (letters) - 1)]
+ ) != (int) len)
+ return NULL;
+
+ if (streamptr != NULL)
+ {
+ /* Try to create the file atomically. */
+ int fd = __open (buf, O_RDWR|O_CREAT|O_EXCL, 0666);
+ if (fd >= 0)
+ {
+ /* We got a new file that did not previously exist.
+ Create a stream for it. */
+ *streamptr = __newstream ();
+ if (*streamptr == NULL)
+ {
+ /* We lost trying to create a stream (out of memory?).
+ Nothing to do but remove the file, close the descriptor,
+ and return failure. */
+ const int save = errno;
+ (void) remove (buf);
+ (void) __close (fd);
+ errno = save;
+ return NULL;
+ }
+ (*streamptr)->__cookie = (PTR) (long int) fd;
+ (*streamptr)->__mode.__write = 1;
+ (*streamptr)->__mode.__read = 1;
+ (*streamptr)->__mode.__binary = 1;
+ }
+ else
+ continue;
+ }
+ else if (exists (buf))
+ continue;
+
+ /* If the file already existed we have continued the loop above,
+ so we only get here when we have a winning name to return. */
+
+ errno = saverrno;
+
+ if (lenptr != NULL)
+ *lenptr = len + 1;
+ return buf;
+ }
+
+ /* We got out of the loop because we ran out of combinations to try. */
+ errno = EEXIST; /* ? */
+ return NULL;
+}
diff --git a/sysdeps/posix/truncate.c b/sysdeps/posix/truncate.c
new file mode 100644
index 0000000..9fe0d86
--- /dev/null
+++ b/sysdeps/posix/truncate.c
@@ -0,0 +1,41 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <sys/types.h>
+#include <errno.h>
+#include <unistd.h>
+
+/* Truncate PATH to LENGTH bytes. */
+int
+DEFUN(truncate, (path, length),
+ CONST char *path AND off_t length)
+{
+ int fd, ret, save;
+
+ fd = open (path, O_WRONLY);
+ if (fd < 0)
+ return -1;
+
+ ret = ftruncate (fd, length);
+ save = errno;
+ (void) close (fd);
+ if (ret < 0)
+ errno = save;
+ return ret;
+}
diff --git a/sysdeps/posix/ttyname.c b/sysdeps/posix/ttyname.c
new file mode 100644
index 0000000..50e3c79
--- /dev/null
+++ b/sysdeps/posix/ttyname.c
@@ -0,0 +1,82 @@
+/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <limits.h>
+#include <stddef.h>
+#include <dirent.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+
+char *__ttyname = NULL;
+
+/* Return the pathname of the terminal FD is open on, or NULL on errors.
+ The returned storage is good only until the next call to this function. */
+char *
+DEFUN(ttyname, (fd), int fd)
+{
+ static CONST char dev[] = "/dev";
+ static char *name;
+ static size_t namelen = 0;
+ struct stat st;
+ dev_t mydev;
+ ino_t myino;
+ DIR *dirstream;
+ struct dirent *d;
+ int save = errno;
+
+ if (fstat (fd, &st) < 0)
+ return NULL;
+ mydev = st.st_dev;
+ myino = st.st_ino;
+
+ dirstream = opendir (dev);
+ if (dirstream == NULL)
+ return NULL;
+
+ while ((d = readdir (dirstream)) != NULL)
+ if (d->d_fileno == myino)
+ {
+ if (sizeof (dev) + d->d_namlen + 1 > namelen)
+ {
+ free (name);
+ namelen = 2 * (sizeof (dev) + d->d_namlen + 1); /* Big enough. */
+ name = malloc (namelen);
+ if (! name)
+ return NULL;
+ (void) memcpy (name, dev, sizeof (dev) - 1);
+ name[sizeof (dev) - 1] = '/';
+ }
+ (void) memcpy (&name[sizeof (dev)], d->d_name, d->d_namlen + 1);
+ if (stat (name, &st) == 0 && st.st_dev == mydev)
+ {
+ (void) closedir (dirstream);
+ __ttyname = name;
+ errno = save;
+ return name;
+ }
+ }
+
+ (void) closedir (dirstream);
+ errno = save;
+ return NULL;
+}
diff --git a/sysdeps/posix/wait.c b/sysdeps/posix/wait.c
new file mode 100644
index 0000000..38891c7
--- /dev/null
+++ b/sysdeps/posix/wait.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 1991, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <sys/wait.h>
+
+
+/* Wait for a child to die. When one does, put its status in *STAT_LOC
+ and return its process ID. For errors, return (pid_t) -1. */
+__pid_t
+DEFUN(__wait, (stat_loc), __WAIT_STATUS_DEFN stat_loc)
+{
+ return __waitpid(WAIT_ANY, (int *) stat_loc, 0);
+}
+
+weak_alias (__wait, wait)
diff --git a/sysdeps/posix/wait3.c b/sysdeps/posix/wait3.c
new file mode 100644
index 0000000..5eb084a
--- /dev/null
+++ b/sysdeps/posix/wait3.c
@@ -0,0 +1,42 @@
+/* Copyright (C) 1992, 1993, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <sys/wait.h>
+#include <sys/types.h>
+#include <stddef.h>
+
+/* Wait for a child to exit. When one does, put its status in *STAT_LOC and
+ return its process ID. For errors return (pid_t) -1. If USAGE is not nil,
+ store information about the child's resource usage (as a `struct rusage')
+ there. If the WUNTRACED bit is set in OPTIONS, return status for stopped
+ children; otherwise don't. */
+pid_t
+DEFUN(__wait3, (stat_loc, options, usage),
+ __WAIT_STATUS_DEFN stat_loc AND int options AND struct rusage *usage)
+{
+ if (usage != NULL)
+ {
+ errno = ENOSYS;
+ return (pid_t) -1;
+ }
+ return __waitpid (WAIT_ANY, stat_loc, options);
+}
+
+weak_alias (__wait3, wait3)
diff --git a/sysdeps/posix/writev.c b/sysdeps/posix/writev.c
new file mode 100644
index 0000000..56e29a6
--- /dev/null
+++ b/sysdeps/posix/writev.c
@@ -0,0 +1,64 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/uio.h>
+
+/* Write data pointed by the buffers described by VECTOR, which
+ is a vector of COUNT `struct iovec's, to file descriptor FD.
+ The data is written in the order specified.
+ Operates just like `write' (see <unistd.h>) except that the data
+ are taken from VECTOR instead of a contiguous buffer. */
+int
+DEFUN(writev, (fd, vector, count),
+ int fd AND CONST struct iovec *vector AND size_t count)
+{
+ char *buffer;
+ register char *bp;
+ size_t bytes, to_copy;
+ register size_t i;
+
+ /* Find the total number of bytes to be written. */
+ bytes = 0;
+ for (i = 0; i < count; ++i)
+ bytes += vector[i].iov_len;
+
+ /* Allocate a temporary buffer to hold the data. */
+ buffer = (char *) __alloca(bytes);
+
+ /* Copy the data into BUFFER. */
+ to_copy = bytes;
+ bp = buffer;
+ for (i = 0; i < count; ++i)
+ {
+#define min(a, b) ((a) > (b) ? (b) : (a))
+ size_t copy = min(vector[i].iov_len, to_copy);
+
+ (void) memcpy((PTR) bp, (PTR) vector[i].iov_base, copy);
+
+ bp += copy;
+ to_copy -= copy;
+ if (bytes == 0)
+ break;
+ }
+
+ return write(fd, buffer, bytes);
+}