53     s->buf = NULL;  in strbuf_init()
61     s->buf = malloc(size);  in strbuf_init()
62     if (!s->buf)  in strbuf_init()
108     if (s->buf) {  in strbuf_free()
109         free(s->buf);  in strbuf_free()
110         s->buf = NULL;  in strbuf_free()
118     char *buf;  in strbuf_free_to_string()  local
124     buf = s->buf;  in strbuf_free_to_string()
131     return buf;  in strbuf_free_to_string()
176     s->buf = realloc(s->buf, s->size);  in strbuf_resize()
177     if (!s->buf)  in strbuf_resize()
194         s->buf[s->length] = str[i];  in strbuf_append_string()
210     fmt_len = vsnprintf(s->buf + s->length, len, fmt, arg);  in strbuf_append_fmt()
236         fmt_len = vsnprintf(s->buf + s->length, empty_len + 1, fmt, arg);  in strbuf_append_fmt_retry()