2 * Replacements for common but usually nonstandard functions that aren't
3 * supplied by all platforms.
5 * Copyright (C) 2009 by Dan Fandrich <dan@coneharvesters.com>, et. al.
7 * Licensed under GPLv2, see file LICENSE in this source tree.
11 #ifndef HAVE_STRCHRNUL
12 char* FAST_FUNC strchrnul(const char *s, int c)
14 while (*s != '\0' && *s != c)
20 #ifndef HAVE_VASPRINTF
21 int FAST_FUNC vasprintf(char **string_ptr, const char *format, va_list p)
28 r = vsnprintf(buf, 128, format, p);
31 /* Note: can't use xstrdup/xmalloc, they call vasprintf (us) on failure! */
35 *string_ptr = strdup(buf);
36 return (*string_ptr ? r : -1);
39 *string_ptr = malloc(r+1);
40 r = (*string_ptr ? vsnprintf(*string_ptr, r+1, format, p2) : -1);
48 /* dprintf is now part of POSIX.1, but was only added in 2008 */
49 int dprintf(int fd, const char *format, ...)
56 r = vasprintf(&string_ptr, format, p);
59 r = full_write(fd, string_ptr, r);
67 /* Copyright (C) 2005 Free Software Foundation, Inc.
68 * memrchr() is a GNU function that might not be available everywhere.
69 * It's basically the inverse of memchr() - search backwards in a
70 * memory block for a particular character.
72 void* FAST_FUNC memrchr(const void *s, int c, size_t n)
74 const char *start = s, *end = s;
78 while (end >= start) {
89 /* This is now actually part of POSIX.1, but was only added in 2008 */
90 char* FAST_FUNC mkdtemp(char *template)
92 if (mktemp(template) == NULL || mkdir(template, 0700) != 0)
98 #ifndef HAVE_STRCASESTR
99 /* Copyright (c) 1999, 2000 The ht://Dig Group */
100 char* FAST_FUNC strcasestr(const char *s, const char *pattern)
102 int length = strlen(pattern);
105 if (strncasecmp(s, pattern, length) == 0)
114 /* Copyright (C) 2004 Free Software Foundation, Inc. */
115 char* FAST_FUNC strsep(char **stringp, const char *delim)
117 char *start = *stringp;
124 ptr = start + strlen(start);
126 ptr = strpbrk(start, delim);
141 char* FAST_FUNC stpcpy(char *p, const char *to_add)
143 while ((*p = *to_add) != '\0') {
152 ssize_t FAST_FUNC getline(char **lineptr, size_t *n, FILE *stream)
155 char *line = *lineptr;
163 if (len + 1 >= alloced) {
164 alloced += alloced/4 + 64;
165 line = xrealloc(line, alloced);
168 } while (ch != '\n');