1 files changed, 50 insertions, 0 deletions
diff --git a/libc/misc/tmpnam.c b/libc/misc/tmpnam.c
new file mode 100644
index 0000000..5bb72c5
--- /dev/null
+++ b/libc/misc/tmpnam.c
@@ -0,0 +1,50 @@
+/*
+ * (C) Shane Kerr <kerr@wizard.net> under terms of LGPL
+ */
+
+#include <unistd.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+#ifndef P_tmpdir
+#define P_tmpdir "/tmp"
+#endif 
+
+#ifndef L_tmpnam
+#define L_tmpnam 20
+#endif 
+
+char *tmpnam(s)
+char *s;
+{
+    static char ret_val[L_tmpnam];
+    static char c1 = 0;
+    static char c2 = 0;
+    static char c3 = 0;
+    static char uniq_ch[] = 
+	 "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+    struct stat stbuf;
+
+    do {
+        sprintf(ret_val, "%s/%05d%c%c%c", P_tmpdir, getpid(), 
+	     uniq_ch[c1], uniq_ch[c2], uniq_ch[c3]);
+        if (++c1 >= 62) {
+  	    c1 = 0;
+	    if (++c2 >= 62) {
+	        c2 = 0;
+	        if (++c3 >= 62) {
+		    errno = EEXIST;
+		    return 0;
+	        }
+	    }
+        }
+    } while (stat(ret_val, &stbuf) == 0);
+
+    if (s != 0) {
+	strcpy(s, ret_val);
+	return s;
+    } else {
+	return ret_val;
+    }
+}
+