aboutsummaryrefslogtreecommitdiff
path: root/shadow/fgetspent.c
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>1999-06-09 12:01:54 +0000
committerUlrich Drepper <drepper@redhat.com>1999-06-09 12:01:54 +0000
commite1c6ee839d13d57a4756e506a6b03f6a82b86d61 (patch)
treed8165cba8422ceb1f1871704ab322995593ac4ab /shadow/fgetspent.c
parentc41baa797637904ab405f14b78e722176abbdca1 (diff)
downloadglibc-e1c6ee839d13d57a4756e506a6b03f6a82b86d61.tar
glibc-e1c6ee839d13d57a4756e506a6b03f6a82b86d61.tar.gz
glibc-e1c6ee839d13d57a4756e506a6b03f6a82b86d61.tar.bz2
glibc-e1c6ee839d13d57a4756e506a6b03f6a82b86d61.zip
Update.
1999-06-09 Ulrich Drepper <drepper@cygnus.com> * pwd/fgetpwent_r.c: Set errno in the correct way. * shadow/fgetspent_r.c: Likewise. * pwd/fgetpwent.c: Handle long lines correctly. Little optimizations. Free static buffer when debugging memory handling. * shadow/fgetspent.c: Likewise. * grp/fgetgrent.c: Little optimization in loop. 1999-06-09 Andreas Jaeger <aj@arthur.rhein-neckar.de> * grp/tst_fgetgrent.c (write_group): Fix generation of long line in a different way.
Diffstat (limited to 'shadow/fgetspent.c')
-rw-r--r--shadow/fgetspent.c29
1 files changed, 25 insertions, 4 deletions
diff --git a/shadow/fgetspent.c b/shadow/fgetspent.c
index 902c95eb04..66a5452678 100644
--- a/shadow/fgetspent.c
+++ b/shadow/fgetspent.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1999 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
@@ -19,6 +19,7 @@
#include <errno.h>
#include <bits/libc-lock.h>
#include <shadow.h>
+#include <stdio.h>
#include <stdlib.h>
@@ -28,16 +29,21 @@
/* We need to protect the dynamic buffer handling. */
__libc_lock_define_initialized (static, lock);
+static char *buffer;
+
/* Read one shadow entry from the given stream. */
struct spwd *
fgetspent (FILE *stream)
{
- static char *buffer;
static size_t buffer_size;
static struct spwd resbuf;
+ fpos_t pos;
struct spwd *result;
int save;
+ if (fgetpos (stream, &pos) != 0)
+ return NULL;
+
/* Get lock. */
__libc_lock_lock (lock);
@@ -49,8 +55,8 @@ fgetspent (FILE *stream)
}
while (buffer != NULL
- && __fgetspent_r (stream, &resbuf, buffer, buffer_size, &result) != 0
- && errno == ERANGE)
+ && (__fgetspent_r (stream, &resbuf, buffer, buffer_size, &result)
+ == ERANGE))
{
char *new_buf;
buffer_size += BUFLEN_SPWD;
@@ -64,6 +70,10 @@ fgetspent (FILE *stream)
__set_errno (save);
}
buffer = new_buf;
+
+ /* Reset the stream. */
+ if (fsetpos (stream, &pos) != 0)
+ buffer = NULL;
}
if (buffer == NULL)
@@ -76,3 +86,14 @@ fgetspent (FILE *stream)
return result;
}
+
+
+/* Free all resources if necessary. */
+static void __attribute__ ((unused))
+free_mem (void)
+{
+ if (buffer != NULL)
+ free (buffer);
+}
+
+text_set_element (__libc_subfreeres, free_mem);