diff options
Diffstat (limited to 'grp/fgetgrent_r.c')
| -rw-r--r-- | grp/fgetgrent_r.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/grp/fgetgrent_r.c b/grp/fgetgrent_r.c index dd74cfc..44298c5 100644 --- a/grp/fgetgrent_r.c +++ b/grp/fgetgrent_r.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1991, 1996 Free Software Foundation, Inc. +/* Copyright (C) 1991, 1996, 1997 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 @@ -56,6 +56,7 @@ __fgetgrent_r (FILE *stream, struct group *resbuf, char *buffer, size_t buflen, struct group **result) { char *p; + int parse_result; do { @@ -69,10 +70,18 @@ __fgetgrent_r (FILE *stream, struct group *resbuf, char *buffer, size_t buflen, /* Skip leading blanks. */ while (isspace (*p)) ++p; - } while (*p == '\0' || *p == '#' || /* Ignore empty and comment lines. */ + } while (*p == '\0' || *p == '#' /* Ignore empty and comment lines. */ /* Parse the line. If it is invalid, loop to get the next line of the file to parse. */ - ! parse_line (p, resbuf, (void *) buffer, buflen)); + || ! (parse_result = parse_line (p, resbuf, + (void *) buffer, buflen))); + + if (parse_result == -1) + { + /* The parser ran out of space. */ + *result = NULL; + return errno; + } *result = resbuf; return 0; |