4 void strbuf_init(struct strbuf
*sb
) {
5 memset(sb
, 0, sizeof(*sb
));
8 void strbuf_release(struct strbuf
*sb
) {
10 memset(sb
, 0, sizeof(*sb
));
13 void strbuf_reset(struct strbuf
*sb
) {
19 char *strbuf_detach(struct strbuf
*sb
) {
25 void strbuf_grow(struct strbuf
*sb
, size_t extra
) {
26 if (sb
->len
+ extra
+ 1 <= sb
->len
)
27 die("you want to use way too much memory");
28 ALLOC_GROW(sb
->buf
, sb
->len
+ extra
+ 1, sb
->alloc
);
31 void strbuf_add(struct strbuf
*sb
, const void *data
, size_t len
) {
33 memcpy(sb
->buf
+ sb
->len
, data
, len
);
34 strbuf_setlen(sb
, sb
->len
+ len
);
37 void strbuf_addf(struct strbuf
*sb
, const char *fmt
, ...) {
42 len
= vsnprintf(sb
->buf
+ sb
->len
, sb
->alloc
- sb
->len
, fmt
, ap
);
47 if (len
>= strbuf_avail(sb
)) {
50 len
= vsnprintf(sb
->buf
+ sb
->len
, sb
->alloc
- sb
->len
, fmt
, ap
);
52 if (len
>= strbuf_avail(sb
)) {
53 die("this should not happen, your snprintf is broken");
56 strbuf_setlen(sb
, sb
->len
+ len
);
59 size_t strbuf_fread(struct strbuf
*sb
, size_t size
, FILE *f
) {
62 strbuf_grow(sb
, size
);
63 res
= fread(sb
->buf
+ sb
->len
, 1, size
, f
);
65 strbuf_setlen(sb
, sb
->len
+ res
);
70 ssize_t
strbuf_read(struct strbuf
*sb
, int fd
)
72 size_t oldlen
= sb
->len
;
77 strbuf_grow(sb
, 8192);
78 cnt
= xread(fd
, sb
->buf
+ sb
->len
, sb
->alloc
- sb
->len
- 1);
80 strbuf_setlen(sb
, oldlen
);
88 sb
->buf
[sb
->len
] = '\0';
89 return sb
->len
- oldlen
;
92 void read_line(struct strbuf
*sb
, FILE *fp
, int term
) {
101 while ((ch
= fgetc(fp
)) != EOF
) {
105 sb
->buf
[sb
->len
++] = ch
;
107 if (ch
== EOF
&& sb
->len
== 0) {
113 sb
->buf
[sb
->len
] = '\0';