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| author | Ulrich Drepper <drepper@redhat.com> | 2001-12-29 15:57:15 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2001-12-29 15:57:15 +0000 |
| commit | d1dddedf7893fe70ed5d429485c8bcd0ab43f285 (patch) | |
| tree | 99420c13234130854769150b8d81f5fe1d2528e3 /libio | |
| parent | 9403ec5d23e7dc209361b3dbae2fdc184e1684aa (diff) | |
| download | glibc-d1dddedf7893fe70ed5d429485c8bcd0ab43f285.zip glibc-d1dddedf7893fe70ed5d429485c8bcd0ab43f285.tar.gz glibc-d1dddedf7893fe70ed5d429485c8bcd0ab43f285.tar.bz2 | |
Realloc error handling memory leak fix.
Diffstat (limited to 'libio')
| -rw-r--r-- | libio/iogetdelim.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/libio/iogetdelim.c b/libio/iogetdelim.c index e648bf0..edc5228 100644 --- a/libio/iogetdelim.c +++ b/libio/iogetdelim.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc. +/* Copyright (C) 1994, 1996, 1997, 1998, 2001 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 @@ -96,15 +96,18 @@ _IO_getdelim (lineptr, n, delimiter, fp) needed = cur_len + len + 1; if (needed > *n) { + char *new_lineptr; + if (needed < 2 * *n) needed = 2 * *n; /* Be generous. */ - *n = needed; - *lineptr = (char *) realloc (*lineptr, needed); - if (*lineptr == NULL) + new_lineptr = (char *) realloc (*lineptr, needed); + if (new_lineptr == NULL) { result = -1; goto unlock_return; } + *lineptr = new_lineptr; + *n = needed; } memcpy (*lineptr + cur_len, (void *) fp->_IO_read_ptr, len); fp->_IO_read_ptr += len; |