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Diffstat (limited to 'grp/fgetgrent_r.c')
-rw-r--r--grp/fgetgrent_r.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/grp/fgetgrent_r.c b/grp/fgetgrent_r.c
index 0c87815..4abadfd 100644
--- a/grp/fgetgrent_r.c
+++ b/grp/fgetgrent_r.c
@@ -21,6 +21,12 @@
#include <grp.h>
#include <stdio.h>
+#ifdef USE_IN_LIBIO
+# include <libio/iolibio.h>
+# define flockfile(s) _IO_flockfile (s)
+# define funlockfile(s) _IO_funlockfile (s)
+#endif
+
/* Define a line parsing function using the common code
used in the nss_files module. */
@@ -59,17 +65,20 @@ __fgetgrent_r (FILE *stream, struct group *resbuf, char *buffer, size_t buflen,
char *p;
int parse_result;
+ flockfile (stream);
do
{
buffer[buflen - 1] = '\xff';
- p = fgets (buffer, buflen, stream);
- if (p == NULL && feof (stream))
+ p = fgets_unlocked (buffer, buflen, stream);
+ if (p == NULL && feof_unlocked (stream))
{
+ funlockfile (stream);
*result = NULL;
return errno;
}
if (p == NULL || buffer[buflen - 1] != '\xff')
{
+ funlockfile (stream);
*result = NULL;
return errno = ERANGE;
}
@@ -84,6 +93,8 @@ __fgetgrent_r (FILE *stream, struct group *resbuf, char *buffer, size_t buflen,
(void *) buffer, buflen,
&errno)));
+ funlockfile (stream);
+
if (parse_result == -1)
{
/* The parser ran out of space. */