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authorRoland McGrath <roland@gnu.org>1995-08-25 19:23:32 +0000
committerRoland McGrath <roland@gnu.org>1995-08-25 19:23:32 +0000
commit7752137a6a9d9a042d2c2f00e245b920e41737bc (patch)
treed0d12093452de95c4c7a609bd14d0094439ad956 /grp
parent3cf595e562f955e399d80ea9d053e41d50469e6b (diff)
downloadglibc-7752137a6a9d9a042d2c2f00e245b920e41737bc.tar.gz
Fri Aug 25 12:12:42 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/mach/hurd/mmap.c: Fix inverted test of MAP_FIXED. * stdio/vfscanf.c (number): Allow field width to inhibit first digit after base detection. * stdio/vfprintf.c (vfprintf: %s): Never search past the limit specified by the precision. * grp/grpread.c (__grpscan): New function. * grp/grp.h (__grpscan): Declare it. * grp/getgrgid.c: Use __grpscan. * grp/getgrnam.c: Likewise. * pwd/pwdread.c (__pwdscan): New function. * pwd/pwd.h (__pwdscan): Declare it. * pwd/getpwnam.c: Use __pwdscan. * pwd/getpwuid.c: Likewise. Thu Aug 24 16:29:40 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> * sysdeps/mach/hurd/mmap.c: Treat (FLAGS & MAP_TYPE) == 0 like MAP_FILE. * hurd/thread-cancel.c: Return EINTR when called on self. * sysdeps/i386/elf/start.S (data_start): Define as weak alias for __data_start.
Diffstat (limited to 'grp')
-rw-r--r--grp/getgrgid.c26
-rw-r--r--grp/getgrnam.c26
-rw-r--r--grp/grp.h7
-rw-r--r--grp/grpread.c33
4 files changed, 50 insertions, 42 deletions
diff --git a/grp/getgrgid.c b/grp/getgrgid.c
index 1375f5ff56..ef3860fe40 100644
--- a/grp/getgrgid.c
+++ b/grp/getgrgid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991 Free Software Foundation, Inc.
+/* 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
@@ -24,27 +24,13 @@ Cambridge, MA 02139, USA. */
/* Search for an entry with a matching group ID. */
struct group *
-DEFUN(getgrgid, (gid), register gid_t gid)
+DEFUN(getgrgid, (gid), gid_t gid)
{
- static PTR info = NULL;
- register FILE *stream;
- register struct group *g;
-
- if (info == NULL)
+ int match (struct group *p)
{
- info = __grpalloc();
- if (info == NULL)
- return NULL;
+ return p->gr_gid == gid;
}
+ static void *info;
- stream = __grpopen();
- if (stream == NULL)
- return NULL;
-
- while ((g = __grpread(stream, info)) != NULL)
- if (g->gr_gid == (gid_t) gid)
- break;
-
- (void) fclose(stream);
- return g;
+ return __grpscan (&info, &match);
}
diff --git a/grp/getgrnam.c b/grp/getgrnam.c
index 1f88ea3ff3..841677070d 100644
--- a/grp/getgrnam.c
+++ b/grp/getgrnam.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991 Free Software Foundation, Inc.
+/* 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
@@ -24,27 +24,13 @@ Cambridge, MA 02139, USA. */
/* Search for an entry with a matching name. */
struct group *
-DEFUN(getgrnam, (name), register CONST char *name)
+DEFUN(getgrnam, (name), const char *name)
{
- static PTR info = NULL;
- register FILE *stream;
- register struct group *g;
-
- if (info == NULL)
+ int match (struct group *p)
{
- info = __grpalloc();
- if (info == NULL)
- return NULL;
+ return ! strcmp (name, p->gr_name);
}
+ static void *info;
- stream = __grpopen();
- if (stream == NULL)
- return NULL;
-
- while ((g = __grpread(stream, info)) != NULL)
- if (!strcmp(g->gr_name, name))
- break;
-
- (void) fclose(stream);
- return g;
+ return __grpscan (&info, &match);
}
diff --git a/grp/grp.h b/grp/grp.h
index 2562671885..722e00f8ba 100644
--- a/grp/grp.h
+++ b/grp/grp.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 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
@@ -55,6 +55,11 @@ extern struct group *__grpread __P ((FILE * __stream, __ptr_t __g));
/* Return a chunk of memory containing pre-initialized data for __grpread. */
extern __ptr_t __grpalloc __P ((void));
+
+/* Scan the group file, filling in G, until SELECTOR returns nonzero for an
+ entry. Return the `struct group' of G if successful, NULL on failure. */
+extern struct group *__grpscan __P ((__ptr_t *__p,
+ int (*__selector) (struct group *)));
#endif
diff --git a/grp/grpread.c b/grp/grpread.c
index b7bac4c192..1fed32f2e3 100644
--- a/grp/grpread.c
+++ b/grp/grpread.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 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
@@ -133,3 +133,34 @@ DEFUN(__grpread, (stream, g), FILE *stream AND PTR CONST g)
return &info->g;
}
+
+
+struct group *
+__grpscan (void **info, int (*selector) (struct group *))
+{
+ FILE *stream;
+ struct group *p;
+
+ if (*info == NULL)
+ {
+ *info = __grpalloc ();
+ if (info == NULL)
+ return NULL;
+ }
+
+ stream = __grpopen ();
+ if (stream == NULL)
+ return NULL;
+
+ p = NULL;
+ while (! feof (stream))
+ {
+ p = __grpread (stream, *info);
+ if (p && (*selector) (p))
+ break;
+ p = NULL;
+ }
+
+ (void) fclose (stream);
+ return p;
+}