44 void strbuf_init(strbuf_t *s, int len)  in strbuf_init()  argument
48     if (len <= 0)  in strbuf_init()
51         size = len + 1;         /* \0 terminator */  in strbuf_init()
68 strbuf_t *strbuf_new(int len)  in strbuf_new()  argument
76     strbuf_init(s, len);  in strbuf_new()
116 char *strbuf_free_to_string(strbuf_t *s, int *len)  in strbuf_free_to_string()  argument
125     if (len)  in strbuf_free_to_string()
126         *len = s->length;  in strbuf_free_to_string()
134 static int calculate_new_size(strbuf_t *s, int len)  in calculate_new_size()  argument
138     if (len <= 0)  in calculate_new_size()
142     reqsize = len + 1;  in calculate_new_size()
164 void strbuf_resize(strbuf_t *s, int len)  in strbuf_resize()  argument
168     newsize = calculate_new_size(s, len);  in strbuf_resize()
202 void strbuf_append_fmt(strbuf_t *s, int len, const char *fmt, ...)  in strbuf_append_fmt()  argument
207     strbuf_ensure_empty_length(s, len);  in strbuf_append_fmt()
210     fmt_len = vsnprintf(s->buf + s->length, len, fmt, arg);  in strbuf_append_fmt()