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| author | pfg <pfg@FreeBSD.org> | 2017-04-07 16:08:04 +0000 |
|---|---|---|
| committer | pfg <pfg@FreeBSD.org> | 2017-04-07 16:08:04 +0000 |
| commit | feaeb09c7553a3cb3242f6be7b39a5f4b4d5a3e7 (patch) | |
| tree | 9779b1eeb4a9a1f1c6fccb20ee1fb04a426efb9d /lib/libc/stdio/open_wmemstream.c | |
| parent | 7317fc9c0522c902a4a0a67b17c5c5d25d04bff9 (diff) | |
| download | FreeBSD-src-feaeb09c7553a3cb3242f6be7b39a5f4b4d5a3e7.zip FreeBSD-src-feaeb09c7553a3cb3242f6be7b39a5f4b4d5a3e7.tar.gz | |
MFC r315162:
libc: provide some bounds-checking through reallocarray(3).
reallocarray(3) is a non portable extension that originated in OpenBSD.
Given that it is already in FreeBSD's libc it is useful for the cases
where reallocation involves a multiplication.
Diffstat (limited to 'lib/libc/stdio/open_wmemstream.c')
| -rw-r--r-- | lib/libc/stdio/open_wmemstream.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/libc/stdio/open_wmemstream.c b/lib/libc/stdio/open_wmemstream.c index 3e8713f..d3331aa 100644 --- a/lib/libc/stdio/open_wmemstream.c +++ b/lib/libc/stdio/open_wmemstream.c @@ -63,7 +63,7 @@ wmemstream_grow(struct wmemstream *ms, fpos_t newoff) else newsize = newoff; if (newsize > ms->len) { - buf = realloc(*ms->bufp, (newsize + 1) * sizeof(wchar_t)); + buf = reallocarray(*ms->bufp, newsize + 1, sizeof(wchar_t)); if (buf != NULL) { #ifdef DEBUG fprintf(stderr, "WMS: %p growing from %zd to %zd\n", |
