[thirdparty/git.git] / strbuf.c

#include "cache.h"
#include "refs.h"

int prefixcmp(const char *str, const char *prefix)
{
	for (; ; str++, prefix++)
		if (!*prefix)
			return 0;
		else if (*str != *prefix)
			return (unsigned char)*prefix - (unsigned char)*str;
}

int suffixcmp(const char *str, const char *suffix)
{
	int len = strlen(str), suflen = strlen(suffix);
	if (len < suflen)
		return -1;
	else
		return strcmp(str + len - suflen, suffix);
}

/*
 * Used as the default ->buf value, so that people can always assume
 * buf is non NULL and ->buf is NUL terminated even for a freshly
 * initialized strbuf.
 */
char strbuf_slopbuf[1];

void strbuf_init(struct strbuf *sb, size_t hint)
{
	sb->alloc = sb->len = 0;
	sb->buf = strbuf_slopbuf;
	if (hint)
		strbuf_grow(sb, hint);
}

void strbuf_release(struct strbuf *sb)
{
	if (sb->alloc) {
		free(sb->buf);
		strbuf_init(sb, 0);
	}
}

char *strbuf_detach(struct strbuf *sb, size_t *sz)
{
	char *res = sb->alloc ? sb->buf : NULL;
	if (sz)
		*sz = sb->len;
	strbuf_init(sb, 0);
	return res;
}

void strbuf_attach(struct strbuf *sb, void *buf, size_t len, size_t alloc)
{
	strbuf_release(sb);
	sb->buf   = buf;
	sb->len   = len;
	sb->alloc = alloc;
	strbuf_grow(sb, 0);
	sb->buf[sb->len] = '\0';
}

void strbuf_grow(struct strbuf *sb, size_t extra)
{
	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;
	ALLOC_GROW(sb->buf, sb->len + extra + 1, sb->alloc);
}

void strbuf_trim(struct strbuf *sb)
{
	char *b = sb->buf;
	while (sb->len > 0 && isspace((unsigned char)sb->buf[sb->len - 1]))
		sb->len--;
	while (sb->len > 0 && isspace(*b)) {
		b++;
		sb->len--;
	}
	memmove(sb->buf, b, sb->len);
	sb->buf[sb->len] = '\0';
}
void strbuf_rtrim(struct strbuf *sb)
{
	while (sb->len > 0 && isspace((unsigned char)sb->buf[sb->len - 1]))
		sb->len--;
	sb->buf[sb->len] = '\0';
}

void strbuf_ltrim(struct strbuf *sb)
{
	char *b = sb->buf;
	while (sb->len > 0 && isspace(*b)) {
		b++;
		sb->len--;
	}
	memmove(sb->buf, b, sb->len);
	sb->buf[sb->len] = '\0';
}

struct strbuf **strbuf_split(const struct strbuf *sb, int delim)
{
	int alloc = 2, pos = 0;
	char *n, *p;
	struct strbuf **ret;
	struct strbuf *t;

	ret = xcalloc(alloc, sizeof(struct strbuf *));
	p = n = sb->buf;
	while (n < sb->buf + sb->len) {
		int len;
		n = memchr(n, delim, sb->len - (n - sb->buf));
		if (pos + 1 >= alloc) {
			alloc = alloc * 2;
			ret = xrealloc(ret, sizeof(struct strbuf *) * alloc);
		}
		if (!n)
			n = sb->buf + sb->len - 1;
		len = n - p + 1;
		t = xmalloc(sizeof(struct strbuf));
		strbuf_init(t, len);
		strbuf_add(t, p, len);
		ret[pos] = t;
		ret[++pos] = NULL;
		p = ++n;
	}
	return ret;
}

void strbuf_list_free(struct strbuf **sbs)
{
	struct strbuf **s = sbs;

	while (*s) {
		strbuf_release(*s);
		free(*s++);
	}
	free(sbs);
}

int strbuf_cmp(const struct strbuf *a, const struct strbuf *b)
{
	int len = a->len < b->len ? a->len: b->len;
	int cmp = memcmp(a->buf, b->buf, len);
	if (cmp)
		return cmp;
	return a->len < b->len ? -1: a->len != b->len;
}

void strbuf_splice(struct strbuf *sb, size_t pos, size_t len,
				   const void *data, size_t dlen)
{
	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");
	if (pos + len > sb->len)
		die("`pos + len' is too far after the end of the buffer");

	if (dlen >= len)
		strbuf_grow(sb, dlen - len);
	memmove(sb->buf + pos + dlen,
			sb->buf + pos + len,
			sb->len - pos - len);
	memcpy(sb->buf + pos, data, dlen);
	strbuf_setlen(sb, sb->len + dlen - len);
}

void strbuf_insert(struct strbuf *sb, size_t pos, const void *data, size_t len)
{
	strbuf_splice(sb, pos, 0, data, len);
}

void strbuf_remove(struct strbuf *sb, size_t pos, size_t len)
{
	strbuf_splice(sb, pos, len, NULL, 0);
}

void strbuf_add(struct strbuf *sb, const void *data, size_t len)
{
	strbuf_grow(sb, len);
	memcpy(sb->buf + sb->len, data, len);
	strbuf_setlen(sb, sb->len + len);
}

void strbuf_adddup(struct strbuf *sb, size_t pos, size_t len)
{
	strbuf_grow(sb, len);
	memcpy(sb->buf + sb->len, sb->buf + pos, len);
	strbuf_setlen(sb, sb->len + len);
}

void strbuf_addf(struct strbuf *sb, const char *fmt, ...)
{
	va_list ap;
	va_start(ap, fmt);
	strbuf_vaddf(sb, fmt, ap);
	va_end(ap);
}

void strbuf_vaddf(struct strbuf *sb, const char *fmt, va_list ap)
{
	int len;
	va_list cp;

	if (!strbuf_avail(sb))
		strbuf_grow(sb, 64);
	va_copy(cp, ap);
	len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, cp);
	va_end(cp);
	if (len < 0)
		die("BUG: your vsnprintf is broken (returned %d)", len);
	if (len > strbuf_avail(sb)) {
		strbuf_grow(sb, len);
		len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap);
		if (len > strbuf_avail(sb))
			die("BUG: your vsnprintf is broken (insatiable)");
	}
	strbuf_setlen(sb, sb->len + len);
}

void strbuf_expand(struct strbuf *sb, const char *format, expand_fn_t fn,
		   void *context)
{
	for (;;) {
		const char *percent;
		size_t consumed;

		percent = strchrnul(format, '%');
		strbuf_add(sb, format, percent - format);
		if (!*percent)
			break;
		format = percent + 1;

		if (*format == '%') {
			strbuf_addch(sb, '%');
			format++;
			continue;
		}

		consumed = fn(sb, format, context);
		if (consumed)
			format += consumed;
		else
			strbuf_addch(sb, '%');
	}
}

size_t strbuf_expand_dict_cb(struct strbuf *sb, const char *placeholder,
		void *context)
{
	struct strbuf_expand_dict_entry *e = context;
	size_t len;

	for (; e->placeholder && (len = strlen(e->placeholder)); e++) {
		if (!strncmp(placeholder, e->placeholder, len)) {
			if (e->value)
				strbuf_addstr(sb, e->value);
			return len;
		}
	}
	return 0;
}

void strbuf_addbuf_percentquote(struct strbuf *dst, const struct strbuf *src)
{
	int i, len = src->len;

	for (i = 0; i < len; i++) {
		if (src->buf[i] == '%')
			strbuf_addch(dst, '%');
		strbuf_addch(dst, src->buf[i]);
	}
}

size_t strbuf_fread(struct strbuf *sb, size_t size, FILE *f)
{
	size_t res;
	size_t oldalloc = sb->alloc;

	strbuf_grow(sb, size);
	res = fread(sb->buf + sb->len, 1, size, f);
	if (res > 0)
		strbuf_setlen(sb, sb->len + res);
	else if (oldalloc == 0)
		strbuf_release(sb);
	return res;
}

ssize_t strbuf_read(struct strbuf *sb, int fd, size_t hint)
{
	size_t oldlen = sb->len;
	size_t oldalloc = sb->alloc;

	strbuf_grow(sb, hint ? hint : 8192);
	for (;;) {
		ssize_t cnt;

		cnt = xread(fd, sb->buf + sb->len, sb->alloc - sb->len - 1);
		if (cnt < 0) {
			if (oldalloc == 0)
				strbuf_release(sb);
			else
				strbuf_setlen(sb, oldlen);
			return -1;
		}
		if (!cnt)
			break;
		sb->len += cnt;
		strbuf_grow(sb, 8192);
	}

	sb->buf[sb->len] = '\0';
	return sb->len - oldlen;
}

#define STRBUF_MAXLINK (2*PATH_MAX)

int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint)
{
	size_t oldalloc = sb->alloc;

	if (hint < 32)
		hint = 32;

	while (hint < STRBUF_MAXLINK) {
		int len;

		strbuf_grow(sb, hint);
		len = readlink(path, sb->buf, hint);
		if (len < 0) {
			if (errno != ERANGE)
				break;
		} else if (len < hint) {
			strbuf_setlen(sb, len);
			return 0;
		}

		/* .. the buffer was too small - try again */
		hint *= 2;
	}
	if (oldalloc == 0)
		strbuf_release(sb);
	return -1;
}

int strbuf_getwholeline(struct strbuf *sb, FILE *fp, int term)
{
	int ch;

	strbuf_grow(sb, 0);
	if (feof(fp))
		return EOF;

	strbuf_reset(sb);
	while ((ch = fgetc(fp)) != EOF) {
		strbuf_grow(sb, 1);
		sb->buf[sb->len++] = ch;
		if (ch == term)
			break;
	}
	if (ch == EOF && sb->len == 0)
		return EOF;

	sb->buf[sb->len] = '\0';
	return 0;
}

int strbuf_getline(struct strbuf *sb, FILE *fp, int term)
{
	if (strbuf_getwholeline(sb, fp, term))
		return EOF;
	if (sb->buf[sb->len-1] == term)
		strbuf_setlen(sb, sb->len-1);
	return 0;
}

int strbuf_read_file(struct strbuf *sb, const char *path, size_t hint)
{
	int fd, len;

	fd = open(path, O_RDONLY);
	if (fd < 0)
		return -1;
	len = strbuf_read(sb, fd, hint);
	close(fd);
	if (len < 0)
		return -1;

	return len;
}
Commit	Line	Data
812666c8	1	#include "cache.h"
a2fab531	2	#include "refs.h"
d1df5743	3
698a68be JH	4	int prefixcmp(const char str, const char prefix)
	5	{
	6	for (; ; str++, prefix++)
	7	if (!*prefix)
	8	return 0;
	9	else if (str != prefix)
	10	return (unsigned char)prefix - (unsigned char)str;
	11	}
	12
8cc5b290 AP	13	int suffixcmp(const char str, const char suffix)
	14	{
	15	int len = strlen(str), suflen = strlen(suffix);
	16	if (len < suflen)
	17	return -1;
	18	else
	19	return strcmp(str + len - suflen, suffix);
	20	}
	21
b315c5c0 PH	22	/*
	23	* Used as the default ->buf value, so that people can always assume
	24	* buf is non NULL and ->buf is NUL terminated even for a freshly
	25	* initialized strbuf.
	26	*/
	27	char strbuf_slopbuf[1];
	28
917c9a71 PH	29	void strbuf_init(struct strbuf *sb, size_t hint)
917c9a71 PH	30	{
b315c5c0 PH	31	sb->alloc = sb->len = 0;
b315c5c0 PH	32	sb->buf = strbuf_slopbuf;
f1696ee3 PH	33	if (hint)
f1696ee3 PH	34	strbuf_grow(sb, hint);
d1df5743 JH	35	}
d1df5743 JH	36
917c9a71 PH	37	void strbuf_release(struct strbuf *sb)
917c9a71 PH	38	{
b315c5c0 PH	39	if (sb->alloc) {
	40	free(sb->buf);
	41	strbuf_init(sb, 0);
	42	}
b449f4cf PH	43	}
b449f4cf PH	44
b315c5c0	45	char strbuf_detach(struct strbuf sb, size_t *sz)
917c9a71	46	{
b315c5c0 PH	47	char *res = sb->alloc ? sb->buf : NULL;
	48	if (sz)
	49	*sz = sb->len;
f1696ee3	50	strbuf_init(sb, 0);
b449f4cf PH	51	return res;
	52	}
	53
917c9a71 PH	54	void strbuf_attach(struct strbuf sb, void buf, size_t len, size_t alloc)
	55	{
	56	strbuf_release(sb);
	57	sb->buf = buf;
	58	sb->len = len;
	59	sb->alloc = alloc;
	60	strbuf_grow(sb, 0);
	61	sb->buf[sb->len] = '\0';
	62	}
	63
	64	void strbuf_grow(struct strbuf *sb, size_t extra)
	65	{
1368f650 JN	66	if (unsigned_add_overflows(extra, 1) \|\|
1368f650 JN	67	unsigned_add_overflows(sb->len, extra + 1))
b449f4cf	68	die("you want to use way too much memory");
b315c5c0 PH	69	if (!sb->alloc)
b315c5c0 PH	70	sb->buf = NULL;
b449f4cf PH	71	ALLOC_GROW(sb->buf, sb->len + extra + 1, sb->alloc);
	72	}
	73
eacd6dc5 LS	74	void strbuf_trim(struct strbuf *sb)
	75	{
	76	char *b = sb->buf;
	77	while (sb->len > 0 && isspace((unsigned char)sb->buf[sb->len - 1]))
	78	sb->len--;
	79	while (sb->len > 0 && isspace(*b)) {
	80	b++;
	81	sb->len--;
	82	}
	83	memmove(sb->buf, b, sb->len);
	84	sb->buf[sb->len] = '\0';
	85	}
f1696ee3 PH	86	void strbuf_rtrim(struct strbuf *sb)
	87	{
	88	while (sb->len > 0 && isspace((unsigned char)sb->buf[sb->len - 1]))
	89	sb->len--;
	90	sb->buf[sb->len] = '\0';
	91	}
	92
eacd6dc5 LS	93	void strbuf_ltrim(struct strbuf *sb)
	94	{
	95	char *b = sb->buf;
	96	while (sb->len > 0 && isspace(*b)) {
	97	b++;
	98	sb->len--;
	99	}
	100	memmove(sb->buf, b, sb->len);
	101	sb->buf[sb->len] = '\0';
	102	}
	103
eacd6dc5 LS	104	struct strbuf *strbuf_split(const struct strbuf sb, int delim)
	105	{
	106	int alloc = 2, pos = 0;
	107	char n, p;
	108	struct strbuf **ret;
	109	struct strbuf *t;
	110
	111	ret = xcalloc(alloc, sizeof(struct strbuf *));
	112	p = n = sb->buf;
	113	while (n < sb->buf + sb->len) {
	114	int len;
	115	n = memchr(n, delim, sb->len - (n - sb->buf));
	116	if (pos + 1 >= alloc) {
	117	alloc = alloc * 2;
	118	ret = xrealloc(ret, sizeof(struct strbuf ) alloc);
	119	}
	120	if (!n)
	121	n = sb->buf + sb->len - 1;
	122	len = n - p + 1;
	123	t = xmalloc(sizeof(struct strbuf));
	124	strbuf_init(t, len);
	125	strbuf_add(t, p, len);
	126	ret[pos] = t;
	127	ret[++pos] = NULL;
	128	p = ++n;
	129	}
	130	return ret;
	131	}
	132
	133	void strbuf_list_free(struct strbuf **sbs)
	134	{
	135	struct strbuf **s = sbs;
	136
	137	while (*s) {
	138	strbuf_release(*s);
	139	free(*s++);
	140	}
	141	free(sbs);
	142	}
	143
9b200fd6	144	int strbuf_cmp(const struct strbuf a, const struct strbuf b)
45f66f64	145	{
8f024655 AR	146	int len = a->len < b->len ? a->len: b->len;
	147	int cmp = memcmp(a->buf, b->buf, len);
	148	if (cmp)
	149	return cmp;
	150	return a->len < b->len ? -1: a->len != b->len;
45f66f64 PH	151	}
45f66f64 PH	152
917c9a71 PH	153	void strbuf_splice(struct strbuf *sb, size_t pos, size_t len,
	154	const void *data, size_t dlen)
	155	{
1368f650	156	if (unsigned_add_overflows(pos, len))
917c9a71 PH	157	die("you want to use way too much memory");
	158	if (pos > sb->len)
	159	die("`pos' is too far after the end of the buffer");
	160	if (pos + len > sb->len)
	161	die("`pos + len' is too far after the end of the buffer");
	162
	163	if (dlen >= len)
	164	strbuf_grow(sb, dlen - len);
	165	memmove(sb->buf + pos + dlen,
	166	sb->buf + pos + len,
	167	sb->len - pos - len);
	168	memcpy(sb->buf + pos, data, dlen);
	169	strbuf_setlen(sb, sb->len + dlen - len);
	170	}
	171
c76689df PH	172	void strbuf_insert(struct strbuf sb, size_t pos, const void data, size_t len)
	173	{
	174	strbuf_splice(sb, pos, 0, data, len);
	175	}
	176
	177	void strbuf_remove(struct strbuf *sb, size_t pos, size_t len)
	178	{
	179	strbuf_splice(sb, pos, len, NULL, 0);
	180	}
	181
917c9a71 PH	182	void strbuf_add(struct strbuf sb, const void data, size_t len)
917c9a71 PH	183	{
b449f4cf PH	184	strbuf_grow(sb, len);
	185	memcpy(sb->buf + sb->len, data, len);
	186	strbuf_setlen(sb, sb->len + len);
	187	}
	188
91db267e RS	189	void strbuf_adddup(struct strbuf *sb, size_t pos, size_t len)
	190	{
	191	strbuf_grow(sb, len);
	192	memcpy(sb->buf + sb->len, sb->buf + pos, len);
	193	strbuf_setlen(sb, sb->len + len);
	194	}
	195
917c9a71 PH	196	void strbuf_addf(struct strbuf sb, const char fmt, ...)
917c9a71 PH	197	{
b449f4cf	198	va_list ap;
ebeb6090 JK	199	va_start(ap, fmt);
	200	strbuf_vaddf(sb, fmt, ap);
	201	va_end(ap);
	202	}
	203
	204	void strbuf_vaddf(struct strbuf sb, const char fmt, va_list ap)
	205	{
	206	int len;
	207	va_list cp;
b449f4cf	208
f141bd80 SP	209	if (!strbuf_avail(sb))
f141bd80 SP	210	strbuf_grow(sb, 64);
ebeb6090 JK	211	va_copy(cp, ap);
	212	len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, cp);
	213	va_end(cp);
f141bd80	214	if (len < 0)
ebeb6090	215	die("BUG: your vsnprintf is broken (returned %d)", len);
f1696ee3	216	if (len > strbuf_avail(sb)) {
b449f4cf	217	strbuf_grow(sb, len);
b449f4cf	218	len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap);
ebeb6090 JK	219	if (len > strbuf_avail(sb))
ebeb6090 JK	220	die("BUG: your vsnprintf is broken (insatiable)");
b449f4cf PH	221	}
b449f4cf PH	222	strbuf_setlen(sb, sb->len + len);
d1df5743 JH	223	}
d1df5743 JH	224
c3a670de MC	225	void strbuf_expand(struct strbuf sb, const char format, expand_fn_t fn,
c3a670de MC	226	void *context)
cde75e59 RS	227	{
cde75e59 RS	228	for (;;) {
c3a670de MC	229	const char *percent;
c3a670de MC	230	size_t consumed;
cde75e59 RS	231
	232	percent = strchrnul(format, '%');
	233	strbuf_add(sb, format, percent - format);
	234	if (!*percent)
	235	break;
	236	format = percent + 1;
	237
0a0416a3 JK	238	if (*format == '%') {
	239	strbuf_addch(sb, '%');
	240	format++;
	241	continue;
	242	}
	243
c3a670de MC	244	consumed = fn(sb, format, context);
	245	if (consumed)
	246	format += consumed;
	247	else
cde75e59 RS	248	strbuf_addch(sb, '%');
	249	}
	250	}
	251
9b864e73 RS	252	size_t strbuf_expand_dict_cb(struct strbuf sb, const char placeholder,
	253	void *context)
	254	{
	255	struct strbuf_expand_dict_entry *e = context;
	256	size_t len;
	257
	258	for (; e->placeholder && (len = strlen(e->placeholder)); e++) {
	259	if (!strncmp(placeholder, e->placeholder, len)) {
	260	if (e->value)
	261	strbuf_addstr(sb, e->value);
	262	return len;
	263	}
	264	}
	265	return 0;
	266	}
	267
361df5df JK	268	void strbuf_addbuf_percentquote(struct strbuf dst, const struct strbuf src)
	269	{
	270	int i, len = src->len;
	271
	272	for (i = 0; i < len; i++) {
	273	if (src->buf[i] == '%')
	274	strbuf_addch(dst, '%');
	275	strbuf_addch(dst, src->buf[i]);
	276	}
	277	}
	278
917c9a71 PH	279	size_t strbuf_fread(struct strbuf sb, size_t size, FILE f)
917c9a71 PH	280	{
b449f4cf	281	size_t res;
2fc64700	282	size_t oldalloc = sb->alloc;
b449f4cf PH	283
	284	strbuf_grow(sb, size);
	285	res = fread(sb->buf + sb->len, 1, size, f);
2fc64700	286	if (res > 0)
b449f4cf	287	strbuf_setlen(sb, sb->len + res);
6651c3f7	288	else if (oldalloc == 0)
2fc64700	289	strbuf_release(sb);
b449f4cf	290	return res;
d1df5743 JH	291	}
d1df5743 JH	292
f1696ee3	293	ssize_t strbuf_read(struct strbuf *sb, int fd, size_t hint)
b449f4cf PH	294	{
b449f4cf PH	295	size_t oldlen = sb->len;
2fc64700	296	size_t oldalloc = sb->alloc;
b449f4cf	297
f1696ee3	298	strbuf_grow(sb, hint ? hint : 8192);
b449f4cf PH	299	for (;;) {
	300	ssize_t cnt;
	301
b449f4cf PH	302	cnt = xread(fd, sb->buf + sb->len, sb->alloc - sb->len - 1);
b449f4cf PH	303	if (cnt < 0) {
2fc64700 RS	304	if (oldalloc == 0)
	305	strbuf_release(sb);
	306	else
	307	strbuf_setlen(sb, oldlen);
b449f4cf PH	308	return -1;
	309	}
	310	if (!cnt)
	311	break;
	312	sb->len += cnt;
f1696ee3	313	strbuf_grow(sb, 8192);
b449f4cf PH	314	}
	315
	316	sb->buf[sb->len] = '\0';
	317	return sb->len - oldlen;
d1df5743 JH	318	}
d1df5743 JH	319
b11b7e13 LT	320	#define STRBUF_MAXLINK (2*PATH_MAX)
	321
	322	int strbuf_readlink(struct strbuf sb, const char path, size_t hint)
	323	{
2fc64700 RS	324	size_t oldalloc = sb->alloc;
2fc64700 RS	325
b11b7e13 LT	326	if (hint < 32)
	327	hint = 32;
	328
	329	while (hint < STRBUF_MAXLINK) {
	330	int len;
	331
	332	strbuf_grow(sb, hint);
	333	len = readlink(path, sb->buf, hint);
	334	if (len < 0) {
	335	if (errno != ERANGE)
	336	break;
	337	} else if (len < hint) {
	338	strbuf_setlen(sb, len);
	339	return 0;
	340	}
	341
	342	/* .. the buffer was too small - try again */
	343	hint *= 2;
	344	}
2fc64700 RS	345	if (oldalloc == 0)
2fc64700 RS	346	strbuf_release(sb);
b11b7e13 LT	347	return -1;
	348	}
	349
c7e4f0d7	350	int strbuf_getwholeline(struct strbuf sb, FILE fp, int term)
917c9a71	351	{
d1df5743	352	int ch;
e6c019d0 PH	353
	354	strbuf_grow(sb, 0);
	355	if (feof(fp))
	356	return EOF;
b449f4cf PH	357
b449f4cf PH	358	strbuf_reset(sb);
d1df5743	359	while ((ch = fgetc(fp)) != EOF) {
b449f4cf PH	360	strbuf_grow(sb, 1);
b449f4cf PH	361	sb->buf[sb->len++] = ch;
c7e4f0d7 BC	362	if (ch == term)
c7e4f0d7 BC	363	break;
d1df5743	364	}
e6c019d0 PH	365	if (ch == EOF && sb->len == 0)
e6c019d0 PH	366	return EOF;
b449f4cf	367
b449f4cf	368	sb->buf[sb->len] = '\0';
e6c019d0	369	return 0;
d1df5743	370	}
a9390b9f	371
c7e4f0d7 BC	372	int strbuf_getline(struct strbuf sb, FILE fp, int term)
	373	{
	374	if (strbuf_getwholeline(sb, fp, term))
	375	return EOF;
	376	if (sb->buf[sb->len-1] == term)
	377	strbuf_setlen(sb, sb->len-1);
	378	return 0;
	379	}
	380
387e7e19	381	int strbuf_read_file(struct strbuf sb, const char path, size_t hint)
a9390b9f KH	382	{
	383	int fd, len;
	384
	385	fd = open(path, O_RDONLY);
	386	if (fd < 0)
	387	return -1;
387e7e19	388	len = strbuf_read(sb, fd, hint);
a9390b9f KH	389	close(fd);
	390	if (len < 0)
	391	return -1;
	392
	393	return len;
	394	}