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issue #1734, avoid passing null ptr to memmove

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This commit is contained in:
Sergio R. Caprile 2022-09-23 19:34:36 -03:00
parent 89f2e66c80
commit f70a407611
1 changed files with 1 additions and 1 deletions
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src/iobuf.c
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@ -28,7 +28,7 @@ int mg_iobuf_resize(struct mg_iobuf *io, size_t new_size) {
void *p = calloc(1, new_size);
if (p != NULL) {
size_t len = new_size < io->len ? new_size : io->len;
if (len > 0) memmove(p, io->buf, len);
if (len > 0 && io->buf != NULL) memmove(p, io->buf, len);
zeromem(io->buf, io->size);
free(io->buf);
io->buf = (unsigned char *) p;