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;
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");
return len;
}
-
-int strbuf_branchname(struct strbuf *sb, const char *name)
-{
- int len = strlen(name);
- if (interpret_branch_name(name, sb) == len)
- return 0;
- strbuf_add(sb, name, len);
- return len;
-}
-
-int strbuf_check_branch_ref(struct strbuf *sb, const char *name)
-{
- strbuf_branchname(sb, name);
- strbuf_splice(sb, 0, 0, "refs/heads/", 11);
- return check_ref_format(sb->buf);
-}