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Don't just resize buffer once, repeat until it is big enough. Also use

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reallocarray. Reported by tuannguyenduc228 at gmail dot com.
This commit is contained in:
Nicholas Marriott
2026-04-04 12:11:25 +01:00
parent 66c324d7ef
commit 95e40115a2
1 changed files with 2 additions and 2 deletions
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4
image-sixel.c
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@@ -487,9 +487,9 @@ static void
sixel_print_add(char **buf, size_t *len, size_t *used, const char *s, sixel_print_add(char **buf, size_t *len, size_t *used, const char *s,
size_t slen) size_t slen)
{ {
if (*used + slen >= *len + 1) { while (*used + slen >= *len + 1) {
*buf = xreallocarray(*buf, 2, *len);
(*len) *= 2; (*len) *= 2;
*buf = xrealloc(*buf, *len);
} }
memcpy(*buf + *used, s, slen); memcpy(*buf + *used, s, slen);
(*used) += slen; (*used) += slen;