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 CONTRIBUTORS ``AS IS'' AND ANY EXPRESS */
20 /* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED */
21 /* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */
22 /* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY */
23 /* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL */
24 /* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS */
25 /* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) */
26 /* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, */
27 /* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN */
28 /* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE */
29 /* POSSIBILITY OF SUCH DAMAGE. */
31 /* Copyright (c) 2006-2008 the Authors */
32 /* see AUTHORS and source files for details */
33 /******************************************************************************/
36 * Copyright © 2006-2007 Pierre Habouzit
39 #ifndef PFIXTOOLS_BUFFER_H
40 #define PFIXTOOLS_BUFFER_H
47 typedef A(char) buffer_t;
49 #define BUFFER_INIT ARRAY_INIT
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;
69 #define buffer_resize(buffer, newsize) \
70 array_ensure_exact_capacity(*(buffer), (newsize) + 1)
72 static inline void buffer_ensure(buffer_t *buf, int extra) {
74 if (buf->len + extra >= buf->size) {
75 buffer_resize(buf, buf->len + extra);
78 static inline void buffer_extend(buffer_t *buf, int extra) {
79 buffer_ensure(buf, extra);
81 buf->data[buf->len] = '\0';
83 static inline void buffer_extendch(buffer_t *buf, int extra, int c) {
84 buffer_ensure(buf, extra);
85 memset(buf->data + buf->len, c, extra);
87 buf->data[buf->len] = '\0';
91 static inline void buffer_add(buffer_t *buf, const void *data, int len) {
92 buffer_ensure(buf, len);
93 memcpy(buf->data + buf->len, data, len);
95 buf->data[buf->len] = '\0';
97 static inline void buffer_addstr(buffer_t *buf, const char *s) {
98 buffer_add(buf, s, m_strlen(s));
100 static inline void buffer_addbuf(buffer_t *buf, buffer_t *buf2) {
101 buffer_add(buf, buf2->data, buf2->len);
103 static inline void buffer_addch(buffer_t *buf, int c) {
104 buffer_extendch(buf, 1, c);
107 __attribute__((format(printf,2,0)))
108 int buffer_addvf(buffer_t *, const char *fmt, va_list);
110 static inline __attribute__((format(printf,2,3)))
111 int buffer_addf(buffer_t *buf, const char *fmt, ...)
116 res = buffer_addvf(buf, fmt, args);
121 void buffer_consume(buffer_t *buf, int len);
123 int buffer_read(buffer_t *buf, int fd, int count);
124 int buffer_write(buffer_t *buf, int fd);
126 #endif /* PFIXTOOLS_BUFFER_H */