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Fix mbuf_resize(0)

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PUBLISHED_FROM=7cab7543db990f7f67b53edca4f65ba45b219711
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Deomid Ryabkov 2015-10-28 23:49:08 +00:00 committed by Marko Mikulicic
parent ffa0ddfdbf
commit 1a6bc7c514
1 changed files with 8 additions and 5 deletions
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13
mongoose.c
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@ -143,11 +143,14 @@ void mbuf_free(struct mbuf *mbuf) {
}
void mbuf_resize(struct mbuf *a, size_t new_size) {
char *p;
if ((new_size > a->size || (new_size < a->size && new_size >= a->len)) &&
(p = (char *) MBUF_REALLOC(a->buf, new_size)) != NULL) {
a->size = new_size;
a->buf = p;
if (new_size > a->size || (new_size < a->size && new_size >= a->len)) {
a->buf = (char *) MBUF_REALLOC(a->buf, new_size);
/*
* In case realloc fails, there's not much we can do except set size to 0.
* Note that NULL is a valid return value from realloc when size == 0, but
* that is covered too.
*/
a->size = (a->buf != NULL ? new_size : 0);
}
}