diff options
Diffstat (limited to 'misc')
| -rw-r--r-- | misc/Makefile | 7 | ||||
| -rw-r--r-- | misc/fstab.c | 21 | ||||
| -rw-r--r-- | misc/hsearch.c | 6 | ||||
| -rw-r--r-- | misc/hsearch_r.c | 2 | ||||
| -rw-r--r-- | misc/mntent.c | 105 | ||||
| -rw-r--r-- | misc/mntent.h | 19 | ||||
| -rw-r--r-- | misc/mntent_r.c | 141 | ||||
| -rw-r--r-- | misc/search.h | 4 |
8 files changed, 186 insertions, 119 deletions
diff --git a/misc/Makefile b/misc/Makefile index 5bdb825..343cc3e 100644 --- a/misc/Makefile +++ b/misc/Makefile @@ -28,7 +28,7 @@ headers := sys/uio.h iovec.h sys/ioctl.h ioctls.h ioctl-types.h \ ttyent.h syslog.h sys/syslog.h paths.h sys/reboot.h \ sys/mman.h sys/param.h fstab.h mntent.h search.h err.h error.h\ sys/queue.h sysexits.h syscall.h sys/syscall.h sys/swap.h \ - sys/select.h ustat.h sys/ustat.h ustatbits.h + sys/select.h ustat.h sys/ustat.h ustatbits.h sys/sysinfo.h routines := brk sbrk sstk ioctl \ readv writev \ @@ -45,7 +45,7 @@ routines := brk sbrk sstk ioctl \ ualarm usleep \ gtty stty \ ptrace nlist \ - fstab mntent \ + fstab mntent mntent_r \ utimes \ truncate ftruncate \ chflags fchflags \ @@ -54,7 +54,8 @@ routines := brk sbrk sstk ioctl \ mmap munmap mprotect msync madvise \ efgcvt efgcvt_r qefgcvt qefgcvt_r \ hsearch hsearch_r tsearch lsearch \ - err error ustat + err error ustat \ + getsysstats aux := init-misc distribute := bsd-compat.c extra-objs := bsd-compat.o diff --git a/misc/fstab.c b/misc/fstab.c index c3c27df..30a60a7 100644 --- a/misc/fstab.c +++ b/misc/fstab.c @@ -1,5 +1,5 @@ -/* -Copyright (C) 1995 Free Software Foundation, Inc. +/* +Copyright (C) 1995, 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 @@ -22,6 +22,9 @@ Cambridge, MA 02139, USA. */ #include <stdio.h> static FILE *fstab; +static struct mntent mntres; +static char buffer[8192]; + static FILE * fstab_stream (void) @@ -48,6 +51,10 @@ static struct fstab * mnt2fs (struct mntent *m) { static struct fstab f; + + if (m == NULL) + return NULL; + f.fs_spec = m->mnt_fsname; f.fs_file = m->mnt_dir; f.fs_vfstype = m->mnt_type; @@ -70,8 +77,8 @@ getfsent (void) if (! s) return NULL; - - return mnt2fs (getmntent (s)); + + return mnt2fs (__getmntent_r (s, &mntres, buffer, sizeof buffer)); } struct fstab * @@ -80,7 +87,7 @@ getfsspec (name) { struct mntent *m; if (setfsent ()) - while (m = getmntent (fstab)) + while (m = __getmntent_r (fstab, &mntres, buffer, sizeof buffer)) if (!strcmp (m->mnt_fsname, name)) return mnt2fs (m); return NULL; @@ -88,11 +95,11 @@ getfsspec (name) struct fstab * getfsfile (name) - register const char *name; + register const char *name; { struct mntent *m; if (setfsent ()) - while (m = getmntent (fstab)) + while (m = __getmntent_r (fstab, &mntres, buffer, sizeof buffer)) if (!strcmp (m->mnt_dir, name)) return mnt2fs (m); return NULL; diff --git a/misc/hsearch.c b/misc/hsearch.c index 7df8686..e0b2e3e 100644 --- a/misc/hsearch.c +++ b/misc/hsearch.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1993, 1995 Free Software Foundation, Inc. +/* Copyright (C) 1993, 1995, 1996 Free Software Foundation, Inc. Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu> This file is part of the GNU C Library. @@ -19,11 +19,11 @@ Boston, MA 02111-1307, USA. */ #include <search.h> -/* The non-reenttrent version use a global space for storing the table. */ +/* The non-reentrant version use a global space for storing the table. */ static struct hsearch_data htab; -/* Define the non-reentrent function using the reentrent counterparts. */ +/* Define the non-reentrant function using the reentrant counterparts. */ ENTRY * hsearch (item, action) ENTRY item; diff --git a/misc/hsearch_r.c b/misc/hsearch_r.c index 86dbe79..151bb31 100644 --- a/misc/hsearch_r.c +++ b/misc/hsearch_r.c @@ -27,7 +27,7 @@ Boston, MA 02111-1307, USA. */ [Knuth] The Art of Computer Programming, part 3 (6.4) */ -/* The reentrent version has no static variables to maintain the state. +/* The reentrant version has no static variables to maintain the state. Instead the interface of all functions is extended to take an argument which describes the current status. */ typedef struct _ENTRY diff --git a/misc/mntent.c b/misc/mntent.c index 0aa1fb8..37a52a3 100644 --- a/misc/mntent.c +++ b/misc/mntent.c @@ -1,5 +1,5 @@ /* Utilities for reading/writing fstab, mtab, etc. -Copyright (C) 1995 Free Software Foundation, Inc. +Copyright (C) 1995, 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 @@ -18,111 +18,12 @@ not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <mntent.h> -#include <stdio.h> -#include <string.h> -#include <sys/types.h> -/* Prepare to begin reading and/or writing mount table entries from the - beginning of FILE. MODE is as for `fopen'. */ -FILE * -setmntent (const char *file, const char *mode) -{ - return fopen (file, mode); -} - -/* Close a stream opened with `setmntent'. */ -int -endmntent (FILE *stream) -{ - if (stream) /* SunOS 4.x allows for NULL stream */ - fclose (stream); - return 1; /* SunOS 4.x says to always return 1 */ -} - - -/* Read one mount table entry from STREAM. Returns a pointer to storage - reused on the next call, or null for EOF or error (use feof/ferror to - check). */ struct mntent * getmntent (FILE *stream) { - static char *buf; - static size_t bufsiz; + static char buf[8192]; static struct mntent m; - ssize_t nread; - char *head; - - do - { - nread = getline (&buf, &bufsiz, stream); - if (nread <= 0) - return NULL; - - if (buf[nread - 1] == '\n') /* chop newline */ - buf[nread - 1] = '\0'; - - head = buf + strspn (buf, " \t"); - /* skip empty lines and comment lines: */ - } while (head[0] == '\0' || head[0] == '#'); - - m.mnt_fsname = strsep (&head, " \t") ?: (char *) ""; - if (head) - head += strspn (head, " \t"); - m.mnt_dir = strsep (&head, " \t") ?: (char *) ""; - if (head) - head += strspn (head, " \t"); - m.mnt_type = strsep (&head, " \t") ?: (char *) ""; - if (head) - head += strspn (head, " \t"); - m.mnt_opts = strsep (&head, " \t") ?: (char *) ""; - switch (head ? sscanf (head, " %d %d ", &m.mnt_freq, &m.mnt_passno) : 0) - { - case 0: - m.mnt_freq = 0; - case 1: - m.mnt_passno = 0; - case 2: - } - - return &m; -} - -/* Write the mount table entry described by MNT to STREAM. - Return zero on success, nonzero on failure. */ -int -addmntent (FILE *stream, const struct mntent *mnt) -{ - if (fseek (stream, 0, SEEK_END)) - return 1; - - return (fprintf (stream, "%s %s %s %s %d %d\n", - mnt->mnt_fsname, - mnt->mnt_dir, - mnt->mnt_type, - mnt->mnt_opts, - mnt->mnt_freq, - mnt->mnt_passno) - < 0 ? 1 : 0); -} - -/* Search MNT->mnt_opts for an option matching OPT. - Returns the address of the substring, or null if none found. */ -char * -hasmntopt (const struct mntent *mnt, const char *opt) -{ - const size_t optlen = strlen (opt); - char *rest = mnt->mnt_opts, *p; - - while ((p = strstr (rest, opt)) != NULL) - { - if (p == rest || p[-1] == ',' && - (p[optlen] == '\0' || - p[optlen] == '=' || - p[optlen] == ',')) - return p; - - rest = strchr (rest, ','); - } - return NULL; + return __getmntent_r (stream, &m, buf, sizeof buf); } diff --git a/misc/mntent.h b/misc/mntent.h index 99fa56d..8fa93f7 100644 --- a/misc/mntent.h +++ b/misc/mntent.h @@ -1,5 +1,5 @@ /* <mntent.h> -- Utilities for reading/writing fstab, mtab, etc. -Copyright (C) 1995 Free Software Foundation, Inc. +Copyright (C) 1995, 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 @@ -50,6 +50,8 @@ struct mntent /* Prepare to begin reading and/or writing mount table entries from the beginning of FILE. MODE is as for `fopen'. */ +extern FILE *__setmntent __P ((__const char *__file, + __const char *__mode)); extern FILE *setmntent __P ((__const char *__file, __const char *__mode)); @@ -58,16 +60,31 @@ extern FILE *setmntent __P ((__const char *__file, check). */ extern struct mntent *getmntent __P ((FILE *__stream)); +#ifdef __USE_REENTRANT +/* Reentrant version of the above function. */ +extern struct mntent *__getmntent_r __P ((FILE *__stream, + struct mntent *__result, + char *__buffer, int __bufsize)); +extern struct mntent *getmntent_r __P ((FILE *__stream, + struct mntent *__result, + char *__buffer, int __bufsize)); +#endif + /* Write the mount table entry described by MNT to STREAM. Return zero on success, nonzero on failure. */ +extern int __addmntent __P ((FILE *__stream, + __const struct mntent *__mnt)); extern int addmntent __P ((FILE *__stream, __const struct mntent *__mnt)); /* Close a stream opened with `setmntent'. */ +extern int __endmntent __P ((FILE *__stream)); extern int endmntent __P ((FILE *__stream)); /* Search MNT->mnt_opts for an option matching OPT. Returns the address of the substring, or null if none found. */ +extern char *__hasmntopt __P ((__const struct mntent *__mnt, + __const char *__opt)); extern char *hasmntopt __P ((__const struct mntent *__mnt, __const char *__opt)); diff --git a/misc/mntent_r.c b/misc/mntent_r.c new file mode 100644 index 0000000..9395525 --- /dev/null +++ b/misc/mntent_r.c @@ -0,0 +1,141 @@ +/* Utilities for reading/writing fstab, mtab, etc. +Copyright (C) 1995, 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 <mntent.h> +#include <stdio.h> +#include <string.h> +#include <sys/types.h> + +/* Prepare to begin reading and/or writing mount table entries from the + beginning of FILE. MODE is as for `fopen'. */ +FILE * +__setmntent (const char *file, const char *mode) +{ + return fopen (file, mode); +} +weak_alias (__setmntent, setmntent) + + +/* Close a stream opened with `setmntent'. */ +int +__endmntent (FILE *stream) +{ + if (stream) /* SunOS 4.x allows for NULL stream */ + fclose (stream); + return 1; /* SunOS 4.x says to always return 1 */ +} +weak_alias (__endmntent, endmntent) + + +/* Read one mount table entry from STREAM. Returns a pointer to storage + reused on the next call, or null for EOF or error (use feof/ferror to + check). */ +struct mntent * +__getmntent_r (FILE *stream, struct mntent *mp, char *buffer, int bufsiz) +{ + char *head; + + do + { + char *end_ptr; + + if (fgets (buffer, bufsiz, stream) == NULL) + return NULL; + + end_ptr = strchr (buffer, '\n'); + if (end_ptr != NULL) /* chop newline */ + *end_ptr = '\0'; + else + { + /* Not the whole line was read. Do it now but forget it. */ + char tmp[1024]; + while (fgets (tmp, sizeof tmp, stream) != NULL) + if (strchr (tmp, '\n') != NULL) + break; + } + + head = buffer + strspn (buffer, " \t"); + /* skip empty lines and comment lines: */ + } while (head[0] == '\0' || head[0] == '#'); + + mp->mnt_fsname = strsep (&head, " \t") ?: (char *) ""; + if (head) + head += strspn (head, " \t"); + mp->mnt_dir = strsep (&head, " \t") ?: (char *) ""; + if (head) + head += strspn (head, " \t"); + mp->mnt_type = strsep (&head, " \t") ?: (char *) ""; + if (head) + head += strspn (head, " \t"); + mp->mnt_opts = strsep (&head, " \t") ?: (char *) ""; + switch (head ? sscanf (head, " %d %d ", &mp->mnt_freq, &mp->mnt_passno) : 0) + { + case 0: + mp->mnt_freq = 0; + case 1: + mp->mnt_passno = 0; + case 2: + } + + return mp; +} +weak_alias (__getmntent_r, getmntent_r) + +/* Write the mount table entry described by MNT to STREAM. + Return zero on success, nonzero on failure. */ +int +__addmntent (FILE *stream, const struct mntent *mnt) +{ + if (fseek (stream, 0, SEEK_END)) + return 1; + + return (fprintf (stream, "%s %s %s %s %d %d\n", + mnt->mnt_fsname, + mnt->mnt_dir, + mnt->mnt_type, + mnt->mnt_opts, + mnt->mnt_freq, + mnt->mnt_passno) + < 0 ? 1 : 0); +} +weak_alias (__addmntent, addmntent) + + +/* Search MNT->mnt_opts for an option matching OPT. + Returns the address of the substring, or null if none found. */ +char * +__hasmntopt (const struct mntent *mnt, const char *opt) +{ + const size_t optlen = strlen (opt); + char *rest = mnt->mnt_opts, *p; + + while ((p = strstr (rest, opt)) != NULL) + { + if (p == rest || p[-1] == ',' && + (p[optlen] == '\0' || + p[optlen] == '=' || + p[optlen] == ',')) + return p; + + rest = strchr (rest, ','); + } + + return NULL; +} +weak_alias (__hasmntopt, hasmntopt) diff --git a/misc/search.h b/misc/search.h index 5e237a2..158332c 100644 --- a/misc/search.h +++ b/misc/search.h @@ -70,7 +70,7 @@ ENTRY; /* Opaque type for internal use. */ struct _ENTRY; -/* Data type for reentrent functions. */ +/* Data type for reentrant functions. */ struct hsearch_data { struct _ENTRY *table; @@ -79,7 +79,7 @@ struct hsearch_data }; /* Family of hash table handling functions. The functions also have - reentrent counterparts ending with _r. */ + reentrant counterparts ending with _r. */ extern ENTRY *hsearch __P ((ENTRY __item, ACTION __action)); extern int hcreate __P ((unsigned int __nel)); extern void hdestroy __P ((void)); |