1 /******************************************************************************/
2 /* pfixtools: a collection of postfix related tools */
4 /* ________________________________________________________________________ */
6 /* Redistribution and use in source and binary forms, with or without */
7 /* modification, are permitted provided that the following conditions */
10 /* 1. Redistributions of source code must retain the above copyright */
11 /* notice, this list of conditions and the following disclaimer. */
12 /* 2. Redistributions in binary form must reproduce the above copyright */
13 /* notice, this list of conditions and the following disclaimer in the */
14 /* documentation and/or other materials provided with the distribution. */
15 /* 3. The names of its contributors may not be used to endorse or promote */
16 /* products derived from this software without specific prior written */
19 /* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND */
20 /* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE */
21 /* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR */
22 /* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS */
23 /* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR */
24 /* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF */
25 /* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS */
26 /* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN */
27 /* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) */
28 /* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF */
29 /* THE POSSIBILITY OF SUCH DAMAGE. */
30 /******************************************************************************/
33 * Copyright © 2006-2007 Pierre Habouzit
36 #ifndef PFIXTOOLS_BUFFER_H
37 #define PFIXTOOLS_BUFFER_H
43 typedef struct buffer_t {
49 #define BUFFER_INIT {NULL, 0, 0}
51 DO_INIT(buffer_t, buffer);
52 static inline void buffer_wipe(buffer_t *buf) {
55 DO_NEW(buffer_t, buffer);
56 DO_DELETE(buffer_t, buffer);
58 static inline void buffer_reset(buffer_t *buf) {
59 buf->data[buf->len = 0] = '\0';
62 static inline char *buffer_unwrap(buffer_t **buf) {
63 char *res = (*buf)->data;
70 void buffer_resize(buffer_t *, ssize_t newsize);
71 static inline void buffer_ensure(buffer_t *buf, ssize_t extra) {
73 if (buf->len + extra >= buf->size) {
74 buffer_resize(buf, buf->len + extra);
77 static inline void buffer_extend(buffer_t *buf, ssize_t extra) {
78 buffer_ensure(buf, extra);
80 buf->data[buf->len] = '\0';
82 static inline void buffer_extendch(buffer_t *buf, ssize_t extra, int c) {
83 buffer_ensure(buf, extra);
84 memset(buf->data + buf->len, c, extra);
86 buf->data[buf->len] = '\0';
90 static inline void buffer_add(buffer_t *buf, const void *data, ssize_t len) {
91 buffer_ensure(buf, len);
92 memcpy(buf->data + buf->len, data, len);
94 buf->data[buf->len] = '\0';
96 static inline void buffer_addstr(buffer_t *buf, const char *s) {
97 buffer_add(buf, s, m_strlen(s));
99 static inline void buffer_addbuf(buffer_t *buf, buffer_t *buf2) {
100 buffer_add(buf, buf2->data, buf2->len);
102 static inline void buffer_addch(buffer_t *buf, int c) {
103 buffer_extendch(buf, 1, c);
106 __attribute__((format(printf,2,0)))
107 ssize_t buffer_addvf(buffer_t *, const char *fmt, va_list);
109 static inline __attribute__((format(printf,2,3)))
110 ssize_t buffer_addf(buffer_t *buf, const char *fmt, ...)
115 res = buffer_addvf(buf, fmt, args);
120 void buffer_consume(buffer_t *buf, ssize_t len);
122 ssize_t buffer_read(buffer_t *buf, int fd, ssize_t count);
123 ssize_t buffer_write(buffer_t *buf, int fd);
125 #endif /* PFIXTOOLS_BUFFER_H */