diff options
| author | Waldemar Brodkorb <wbx@openadk.org> | 2015-12-06 18:05:32 +0100 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2015-12-09 07:50:59 +0100 |
| commit | 5a233790c38323afaed5ede000e1ef1234755ad7 (patch) | |
| tree | f674e420e0871491e1dad7bf584226fffdfaf5d1 /libc/stdio/vasprintf.c | |
| parent | b6af57f98021bc3b1b8183cfb501a5c45293cdd7 (diff) | |
Reduce the initial buffer size for open_memstream
Reduce the initial buffer size for open_memstream (used by vasprintf),
as most strings are usually smaller than that.
Realloc the buffer after finishing the string to further reduce size.
Problem appears in case of UCLIBC_HAS_GLIBC_CUSTOM_STREAMS=y,
see http://dev.openwrt.org/ticket/13024
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
Diffstat (limited to 'libc/stdio/vasprintf.c')
| -rw-r--r-- | libc/stdio/vasprintf.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libc/stdio/vasprintf.c b/libc/stdio/vasprintf.c index a901ee815..fa7926c60 100644 --- a/libc/stdio/vasprintf.c +++ b/libc/stdio/vasprintf.c @@ -39,6 +39,8 @@ int vasprintf(char **__restrict buf, const char * __restrict format, if (rv < 0) { free(*buf); *buf = NULL; + } else { + *buf = realloc(*buf, rv + 1); } } |