diff options
Diffstat (limited to 'strbuf.c')
| -rw-r--r-- | strbuf.c | 5 |
1 files changed, 3 insertions, 2 deletions
@@ -63,7 +63,8 @@ void strbuf_attach(struct strbuf *sb, void *buf, size_t len, size_t alloc) void strbuf_grow(struct strbuf *sb, size_t extra) { - if (sb->len + extra + 1 <= sb->len) + if (unsigned_add_overflows(extra, 1) || + unsigned_add_overflows(sb->len, extra + 1)) die("you want to use way too much memory"); if (!sb->alloc) sb->buf = NULL; @@ -152,7 +153,7 @@ int strbuf_cmp(const struct strbuf *a, const struct strbuf *b) void strbuf_splice(struct strbuf *sb, size_t pos, size_t len, const void *data, size_t dlen) { - if (pos + len < pos) + if (unsigned_add_overflows(pos, len)) die("you want to use way too much memory"); if (pos > sb->len) die("`pos' is too far after the end of the buffer"); |