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url-mode: regex: make sure there's always room for the NULL terminator

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Daniel Eklöf 2025-01-31 13:10:58 +01:00
parent 130b05f02b
commit ab4426f987
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1 changed files with 2 additions and 1 deletions
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url-mode.c
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@ -354,7 +354,8 @@ regex_detected(const struct terminal *term, enum url_action action, url_list_t *
for (size_t j = 0; j < char_len; j++) { for (size_t j = 0; j < char_len; j++) {
const size_t requires_size = vline->len + char_len; const size_t requires_size = vline->len + char_len;
if (requires_size > vline->sz) { /* Need to grow? Remember to save at least one byte for terminator */
if (vline->sz == 0 || requires_size > vline->sz - 1) {
const size_t new_size = requires_size * 2; const size_t new_size = requires_size * 2;
vline->utf8 = xreallocarray(vline->utf8, new_size, 1); vline->utf8 = xreallocarray(vline->utf8, new_size, 1);
vline->map = xreallocarray(vline->map, new_size, sizeof(vline->map[0])); vline->map = xreallocarray(vline->map, new_size, sizeof(vline->map[0]));