Initial version

7 files changed, 120 insertions, 0 deletions

diff --git a/src/temp/__randname.c b/src/temp/__randname.c
new file mode 100644
index 0000000..e9b970f
--- /dev/null
+++ b/src/temp/__randname.c
@@ -0,0 +1,19 @@
+#include <time.h>
+#include <stdint.h>
+#include "pthread_impl.h"
+
+/* This assumes that a check for the
+   template size has already been made */
+char *__randname(char *template)
+{
+	int i;
+	struct timespec ts;
+	unsigned long r;
+
+	__clock_gettime(CLOCK_REALTIME, &ts);
+	r = ts.tv_sec + ts.tv_nsec + __pthread_self()->tid * 65537UL;
+	for (i=0; i<6; i++, r>>=5)
+		template[i] = 'A'+(r&15)+(r&16)*2;
+
+	return template;
+}
diff --git a/src/temp/mkdtemp.c b/src/temp/mkdtemp.c
new file mode 100644
index 0000000..5708257
--- /dev/null
+++ b/src/temp/mkdtemp.c
@@ -0,0 +1,23 @@
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/stat.h>
+
+char *mkdtemp(char *template)
+{
+	size_t l = strlen(template);
+	int retries = 100;
+
+	if (l<6 || memcmp(template+l-6, "XXXXXX", 6)) {
+		errno = EINVAL;
+		return 0;
+	}
+
+	do {
+		__randname(template+l-6);
+		if (!mkdir(template, 0700)) return template;
+	} while (--retries && errno == EEXIST);
+
+	memcpy(template+l-6, "XXXXXX", 6);
+	return 0;
+}
diff --git a/src/temp/mkostemp.c b/src/temp/mkostemp.c
new file mode 100644
index 0000000..e3dfdd9
--- /dev/null
+++ b/src/temp/mkostemp.c
@@ -0,0 +1,7 @@
+#define _BSD_SOURCE
+#include <stdlib.h>
+
+int mkostemp(char *template, int flags)
+{
+	return __mkostemps(template, 0, flags);
+}
diff --git a/src/temp/mkostemps.c b/src/temp/mkostemps.c
new file mode 100644
index 0000000..093d238
--- /dev/null
+++ b/src/temp/mkostemps.c
@@ -0,0 +1,28 @@
+#define _BSD_SOURCE
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+
+int __mkostemps(char *template, int len, int flags)
+{
+	size_t l = strlen(template);
+	if (l<6 || len>l-6 || memcmp(template+l-len-6, "XXXXXX", 6)) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	flags -= flags & O_ACCMODE;
+	int fd, retries = 100;
+	do {
+		__randname(template+l-len-6);
+		if ((fd = open(template, flags | O_RDWR | O_CREAT | O_EXCL, 0600))>=0)
+			return fd;
+	} while (--retries && errno == EEXIST);
+
+	memcpy(template+l-len-6, "XXXXXX", 6);
+	return -1;
+}
+
+weak_alias(__mkostemps, mkostemps);
diff --git a/src/temp/mkstemp.c b/src/temp/mkstemp.c
new file mode 100644
index 0000000..76c835b
--- /dev/null
+++ b/src/temp/mkstemp.c
@@ -0,0 +1,6 @@
+#include <stdlib.h>
+
+int mkstemp(char *template)
+{
+	return __mkostemps(template, 0, 0);
+}
diff --git a/src/temp/mkstemps.c b/src/temp/mkstemps.c
new file mode 100644
index 0000000..f8eabfe
--- /dev/null
+++ b/src/temp/mkstemps.c
@@ -0,0 +1,7 @@
+#define _BSD_SOURCE
+#include <stdlib.h>
+
+int mkstemps(char *template, int len)
+{
+	return __mkostemps(template, len, 0);
+}
diff --git a/src/temp/mktemp.c b/src/temp/mktemp.c
new file mode 100644
index 0000000..7b3d264
--- /dev/null
+++ b/src/temp/mktemp.c
@@ -0,0 +1,30 @@
+#define _GNU_SOURCE
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/stat.h>
+
+char *mktemp(char *template)
+{
+	size_t l = strlen(template);
+	int retries = 100;
+	struct stat st;
+
+	if (l < 6 || memcmp(template+l-6, "XXXXXX", 6)) {
+		errno = EINVAL;
+		*template = 0;
+		return template;
+	}
+
+	do {
+		__randname(template+l-6);
+		if (stat(template, &st)) {
+			if (errno != ENOENT) *template = 0;
+			return template;
+		}
+	} while (--retries);
+
+	*template = 0;
+	errno = EEXIST;
+	return template;
+}