1 /******************************************************************************/
2 /* postlicyd: a postfix policy daemon with a lot of features */
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 POSTLICYD_BUFFER_H
37 #define POSTLICYD_BUFFER_H
42 typedef struct buffer_t {
48 DO_INIT(buffer_t, buffer);
49 static inline void buffer_wipe(buffer_t *buf) {
52 DO_NEW(buffer_t, buffer);
53 DO_DELETE(buffer_t, buffer);
55 static inline void buffer_reset(buffer_t *buf) {
56 buf->data[buf->len = 0] = '\0';
59 static inline char *buffer_unwrap(buffer_t **buf) {
60 char *res = (*buf)->data;
67 void buffer_resize(buffer_t *, ssize_t newsize);
68 static inline void buffer_ensure(buffer_t *buf, ssize_t extra) {
70 if (buf->len + extra >= buf->size) {
71 buffer_resize(buf, buf->len + extra);
74 static inline void buffer_extend(buffer_t *buf, ssize_t extra) {
75 buffer_ensure(buf, extra);
77 buf->data[buf->len] = '\0';
79 static inline void buffer_extendch(buffer_t *buf, ssize_t extra, int c) {
80 buffer_ensure(buf, extra);
81 memset(buf->data + buf->len, c, extra);
83 buf->data[buf->len] = '\0';
87 static inline void buffer_add(buffer_t *buf, const void *data, ssize_t len) {
88 buffer_ensure(buf, len);
89 memcpy(buf->data + buf->len, data, len);
91 buf->data[buf->len] = '\0';
93 static inline void buffer_addstr(buffer_t *buf, const char *s) {
94 buffer_add(buf, s, m_strlen(s));
96 static inline void buffer_addbuf(buffer_t *buf, buffer_t *buf2) {
97 buffer_add(buf, buf2->data, buf2->len);
99 static inline void buffer_addch(buffer_t *buf, int c) {
100 buffer_extendch(buf, 1, c);
103 void buffer_consume(buffer_t *buf, ssize_t len);
105 ssize_t buffer_read(buffer_t *buf, int fd, ssize_t count);
107 #endif /* POSTLICYD_BUFFER_H */