117 lines
2.0 KiB
C
117 lines
2.0 KiB
C
#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gd.h"
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#include "gdhelpers.h"
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <ctype.h>
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/* TBB: gd_strtok_r is not portable; provide an implementation */
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#define SEP_TEST (separators[*((unsigned char *) s)])
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char *
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gd_strtok_r (char *s, char *sep, char **state)
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{
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char separators[256];
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char *result = 0;
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memset (separators, 0, sizeof (separators));
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while (*sep) {
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separators[*((unsigned char *) sep)] = 1;
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sep++;
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}
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if (!s) {
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/* Pick up where we left off */
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s = *state;
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}
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/* 1. EOS */
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if (!(*s)) {
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*state = s;
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return 0;
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}
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/* 2. Leading separators, if any */
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if (SEP_TEST) {
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do {
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s++;
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} while (SEP_TEST);
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/* 2a. EOS after separators only */
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if (!(*s)) {
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*state = s;
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return 0;
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}
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}
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/* 3. A token */
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result = s;
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do {
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/* 3a. Token at end of string */
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if (!(*s)) {
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*state = s;
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return result;
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}
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s++;
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} while (!SEP_TEST);
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/* 4. Terminate token and skip trailing separators */
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*s = '\0';
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do {
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s++;
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} while (SEP_TEST);
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/* 5. Return token */
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*state = s;
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return result;
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}
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void * gdCalloc (size_t nmemb, size_t size)
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{
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return calloc (nmemb, size);
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}
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void *
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gdMalloc (size_t size)
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{
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return malloc (size);
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}
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void *
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gdRealloc (void *ptr, size_t size)
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{
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return realloc (ptr, size);
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}
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void *
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gdReallocEx (void *ptr, size_t size)
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{
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void *newPtr = gdRealloc (ptr, size);
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if (!newPtr && ptr)
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gdFree(ptr);
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return newPtr;
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}
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/*
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Function: gdFree
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Frees memory that has been allocated by libgd functions.
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Unless more specialized functions exists (for instance, <gdImageDestroy>),
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all memory that has been allocated by public libgd functions has to be
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freed by calling <gdFree>, and not by free(3), because libgd internally
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doesn't use alloc(3) and friends but rather its own allocation functions,
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which are, however, not publicly available.
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Parameters:
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ptr - Pointer to the memory space to free. If it is NULL, no operation is
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performed.
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Returns:
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Nothing.
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*/
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BGD_DECLARE(void) gdFree (void *ptr)
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{
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free (ptr);
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}
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