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authorKarl Berry <karl@freefriends.org>2021-02-25 19:22:25 +0000
committerKarl Berry <karl@freefriends.org>2021-02-25 19:22:25 +0000
commitad547a6b5986815fda458221149728d9d9ab1d87 (patch)
tree16296910eb3eca724371474ea9aea3994dc69614 /Build/source/libs/gd/libgd-src/src/gdhelpers.c
parent947b43de3dd21d58ccc2ffadefc4441ea1c2a813 (diff)
restore Build,TODO from r57911
git-svn-id: svn://tug.org/texlive/trunk@57915 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/gd/libgd-src/src/gdhelpers.c')
-rw-r--r--Build/source/libs/gd/libgd-src/src/gdhelpers.c116
1 files changed, 116 insertions, 0 deletions
diff --git a/Build/source/libs/gd/libgd-src/src/gdhelpers.c b/Build/source/libs/gd/libgd-src/src/gdhelpers.c
new file mode 100644
index 00000000000..de7a0a39c8e
--- /dev/null
+++ b/Build/source/libs/gd/libgd-src/src/gdhelpers.c
@@ -0,0 +1,116 @@
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gd.h"
+#include "gdhelpers.h"
+#include <stdlib.h>
+#include <string.h>
+
+#include <sys/types.h>
+#include <ctype.h>
+
+/* TBB: gd_strtok_r is not portable; provide an implementation */
+
+#define SEP_TEST (separators[*((unsigned char *) s)])
+
+char *
+gd_strtok_r (char *s, char *sep, char **state)
+{
+ char separators[256];
+ char *result = 0;
+ memset (separators, 0, sizeof (separators));
+ while (*sep) {
+ separators[*((unsigned char *) sep)] = 1;
+ sep++;
+ }
+ if (!s) {
+ /* Pick up where we left off */
+ s = *state;
+ }
+ /* 1. EOS */
+ if (!(*s)) {
+ *state = s;
+ return 0;
+ }
+ /* 2. Leading separators, if any */
+ if (SEP_TEST) {
+ do {
+ s++;
+ } while (SEP_TEST);
+ /* 2a. EOS after separators only */
+ if (!(*s)) {
+ *state = s;
+ return 0;
+ }
+ }
+ /* 3. A token */
+ result = s;
+ do {
+ /* 3a. Token at end of string */
+ if (!(*s)) {
+ *state = s;
+ return result;
+ }
+ s++;
+ } while (!SEP_TEST);
+ /* 4. Terminate token and skip trailing separators */
+ *s = '\0';
+ do {
+ s++;
+ } while (SEP_TEST);
+ /* 5. Return token */
+ *state = s;
+ return result;
+}
+
+void * gdCalloc (size_t nmemb, size_t size)
+{
+ return calloc (nmemb, size);
+}
+
+void *
+gdMalloc (size_t size)
+{
+ return malloc (size);
+}
+
+void *
+gdRealloc (void *ptr, size_t size)
+{
+ return realloc (ptr, size);
+}
+
+void *
+gdReallocEx (void *ptr, size_t size)
+{
+ void *newPtr = gdRealloc (ptr, size);
+ if (!newPtr && ptr)
+ gdFree(ptr);
+ return newPtr;
+}
+
+/*
+ Function: gdFree
+
+ Frees memory that has been allocated by libgd functions.
+
+ Unless more specialized functions exists (for instance, <gdImageDestroy>),
+ all memory that has been allocated by public libgd functions has to be
+ freed by calling <gdFree>, and not by free(3), because libgd internally
+ doesn't use alloc(3) and friends but rather its own allocation functions,
+ which are, however, not publicly available.
+
+ Parameters:
+
+ ptr - Pointer to the memory space to free. If it is NULL, no operation is
+ performed.
+
+ Returns:
+
+ Nothing.
+*/
+BGD_DECLARE(void) gdFree (void *ptr)
+{
+ free (ptr);
+}