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Diffstat (limited to 'fontconfig/src/fccompat.c')
-rw-r--r--fontconfig/src/fccompat.c118
1 files changed, 117 insertions, 1 deletions
diff --git a/fontconfig/src/fccompat.c b/fontconfig/src/fccompat.c
index 2aa29ddcc..0a9c135fe 100644
--- a/fontconfig/src/fccompat.c
+++ b/fontconfig/src/fccompat.c
@@ -31,11 +31,20 @@
#include "fcint.h"
+#include <errno.h>
+#if HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#if HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
#if HAVE_FCNTL_H
#include <fcntl.h>
#endif
#include <stdarg.h>
#include <stdlib.h>
+#include <string.h>
+#include <time.h>
#ifdef O_CLOEXEC
#define FC_O_CLOEXEC O_CLOEXEC
@@ -47,6 +56,58 @@
#else
#define FC_O_LARGEFILE 0
#endif
+#ifdef O_BINARY
+#define FC_O_BINARY O_BINARY
+#else
+#define FC_O_BINARY 0
+#endif
+#ifdef O_TEMPORARY
+#define FC_O_TEMPORARY O_TEMPORARY
+#else
+#define FC_O_TEMPORARY 0
+#endif
+#ifdef O_NOINHERIT
+#define FC_O_NOINHERIT O_NOINHERIT
+#else
+#define FC_O_NOINHERIT 0
+#endif
+
+#if !defined (HAVE_MKOSTEMP) && !defined(HAVE_MKSTEMP) && !defined(HAVE__MKTEMP_S)
+static int
+mkstemp (char *template)
+{
+ static const char s[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
+ int fd, i;
+ size_t l;
+
+ if (template == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+ l = strlen (template);
+ if (l < 6 || strcmp (&template[l - 6], "XXXXXX") != 0)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+ do
+ {
+ errno = 0;
+ for (i = l - 6; i < l; i++)
+ {
+ int r = FcRandom ();
+ template[i] = s[r % 62];
+ }
+ fd = FcOpen (template, FC_O_BINARY | O_CREAT | O_EXCL | FC_O_TEMPORARY | FC_O_NOINHERIT | O_RDWR, 0600);
+ } while (fd < 0 && errno == EEXIST);
+ if (fd >= 0)
+ errno = 0;
+
+ return fd;
+}
+#define HAVE_MKSTEMP 1
+#endif
int
FcOpen(const char *pathname, int flags, ...)
@@ -84,7 +145,7 @@ FcMakeTempfile (char *template)
# ifdef F_DUPFD_CLOEXEC
if (fd != -1)
{
- int newfd = fcntl(fd, F_DUPFD_CLOEXEC);
+ int newfd = fcntl(fd, F_DUPFD_CLOEXEC, STDIN_FILENO);
close(fd);
fd = newfd;
@@ -109,3 +170,58 @@ FcMakeTempfile (char *template)
return fd;
}
+
+int32_t
+FcRandom(void)
+{
+ int32_t result;
+
+#if HAVE_RANDOM_R
+ static struct random_data fcrandbuf;
+ static char statebuf[256];
+ static FcBool initialized = FcFalse;
+
+ if (initialized != FcTrue)
+ {
+ initstate_r(time(NULL), statebuf, 256, &fcrandbuf);
+ initialized = FcTrue;
+ }
+
+ random_r(&fcrandbuf, &result);
+#elif HAVE_RANDOM
+ static char statebuf[256];
+ char *state;
+ static FcBool initialized = FcFalse;
+
+ if (initialized != FcTrue)
+ {
+ state = initstate(time(NULL), statebuf, 256);
+ initialized = FcTrue;
+ }
+ else
+ state = setstate(statebuf);
+
+ result = random();
+
+ setstate(state);
+#elif HAVE_LRAND48
+ result = lrand48();
+#elif HAVE_RAND_R
+ static unsigned int seed = time(NULL);
+
+ result = rand_r(&seed);
+#elif HAVE_RAND
+ static FcBool initialized = FcFalse;
+
+ if (initialized != FcTrue)
+ {
+ srand(time(NULL));
+ initialized = FcTrue;
+ }
+ result = rand();
+#else
+# error no random number generator function available.
+#endif
+
+ return result;
+}