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authorRoland McGrath <roland@gnu.org>1996-06-16 03:49:40 +0000
committerRoland McGrath <roland@gnu.org>1996-06-16 03:49:40 +0000
commit5fbef188648f5150617e0a14f1011e600f1b3a0f (patch)
tree81334ea044e87bc2cf489cc8cb49adab73b9d6dd /hurd/get-host.c
parentf9496a7b54c27580d4b30cc2b2b40e86738b2b81 (diff)
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* hurd/Makefile (routines): Add get-host, set-host.
(distribute): Add hurdhost.h. * hurd/hurdhost.h: New file. * sysdeps/mach/hurd/gethostname.c: Use _hurd_get_host_config. * sysdeps/mach/hurd/gethostid.c: Likewise. * sysdeps/mach/hurd/sethostname.c: Use _hurd_set_host_config. * sysdeps/mach/hurd/sethostid.c: Likewise. * hurd/get-host.c: New file. * hurd/set-host.c: New file. * math/Makefile (headers): Add fpu_control.h. (aux): New variable, list fpu_control and setfpucw. * sysdeps/generic/fpu_control.c: New file. * sysdeps/stub/fpu_control.h: New file. * sysdeps/unix/sysv/linux/m68k/fpu_control.h: Moved to ... * sysdeps/m68k/fpu_control.h: here. * sysdeps/unix/sysv/linux/i386/fpu_control.h: Moved to ... * sysdeps/i386/fpu_control.h: here. * sysdeps/unix/sysv/linux/alpha/fpu_control.h: Moved to ... * sysdeps/alpha/fpu/fpu_control.h: here. Fixed copyright. * sysdeps/unix/sysv/linux/alpha/Makefile (sysdep_routines): Remove setfpucw, fpu_control. * sysdeps/unix/sysv/linux/alpha/fpu_control.c: File removed. * sysdeps/unix/sysv/linux/setfpucw.c: Moved to ... * sysdeps/generic/setfpucw.c: here. (__fpu_control): Variable removed. (__setfpucw): Use SET even if zero.
Diffstat (limited to 'hurd/get-host.c')
-rw-r--r--hurd/get-host.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/hurd/get-host.c b/hurd/get-host.c
new file mode 100644
index 0000000..231ee59
--- /dev/null
+++ b/hurd/get-host.c
@@ -0,0 +1,57 @@
+/* Get a host configuration item kept as the whole contents of a file.
+Copyright (C) 1996 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 <hurd.h>
+#include "hurdhost.h"
+
+ssize_t
+_hurd_get_host_config (const char *item, char *buf, size_t buflen)
+{
+ error_t err;
+ char *data;
+ mach_msg_type_number_t nread, more;
+ file_t config = __file_name_lookup (item, O_RDONLY, 0);
+ if (config == MACH_PORT_NULL)
+ return -1;
+
+ data = buf;
+ err = __io_read (config, &data, &nread, -1, buflen);
+ if (! err)
+ /* Check if there is more in the file we didn't read. */
+ err = __io_readable (config, &more);
+ __mach_port_deallocate (__mach_task_self (), config);
+ if (err)
+ return __hurd_fail (err);
+ if (data != buf)
+ {
+ memcpy (buf, data, nread);
+ __vm_deallocate (__mach_task_self (), (vm_address_t) data, nread);
+ }
+
+ /* Remove newlines in case someone wrote the file by hand. */
+ while (buf[nread - 1] == '\n')
+ buf[--nread] = '\0';
+
+ if (more)
+ /* If we didn't read the whole file, tell the caller to use a bigger
+ buffer next time. */
+ return __hurd_fail (ENAMETOOLONG);
+
+ return nread;
+}