initial check-in, version 0.5.0

src/temp/mkdtemp.c

@@ -0,0 +1,21 @@
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <limits.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include "libc.h"
+
+char *mkdtemp(char *template)
+{
+	for (;;) {
+		if (!mktemp(template)) return 0;
+		if (!mkdir(template, 0700)) return template;
+		if (errno != EEXIST) return 0;
+		/* this is safe because mktemp verified
+		 * that we have a valid template string */
+		strcpy(template+strlen(template)-6, "XXXXXX");
+	}
+}

src/temp/mkstemp.c

@@ -0,0 +1,26 @@
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <limits.h>
+#include <errno.h>
+#include "libc.h"
+
+int mkstemp(char *template)
+{
+	int fd;
+retry:
+	if (!mktemp(template)) return -1;
+	fd = open(template, O_RDWR | O_CREAT | O_EXCL, 0600);
+	if (fd >= 0) return fd;
+	if (errno == EEXIST) {
+		/* this is safe because mktemp verified
+		 * that we have a valid template string */
+		strcpy(template+strlen(template)-6, "XXXXXX");
+		goto retry;
+	}
+	return -1;
+}
+
+LFS64(mkstemp);

src/temp/mktemp.c

@@ -0,0 +1,29 @@
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include "libc.h"
+
+char *mktemp(char *template)
+{
+	static int lock;
+	static int index;
+	int l = strlen(template);
+
+	if (l < 6 || strcmp(template+l-6, "XXXXXX")) {
+		errno = EINVAL;
+		return NULL;
+	}
+	LOCK(&lock);
+	for (; index < 1000000; index++) {
+		snprintf(template+l-6, 6, "%06d", index);
+		if (access(template, F_OK) != 0) {
+			UNLOCK(&lock);
+			return template;
+		}
+	}
+	UNLOCK(&lock);
+	return NULL;	
+}