19990502 sourceware import

libiberty/tmpnam.c

@@ -0,0 +1,39 @@
+#include <stdio.h>
+
+#ifndef L_tmpnam
+#define L_tmpname 100
+#endif
+#ifndef P_tmpdir
+#define P_tmpdir "/usr/tmp"
+#endif
+
+static char tmpnam_buffer[L_tmpnam];
+static int tmpnam_counter;
+
+extern int getpid ();
+
+char *
+tmpnam (s)
+     char *s;
+{
+  int pid = getpid ();
+
+  if (s == NULL)
+    s = tmpnam_buffer;
+
+  /*  Generate the filename and make sure that there isn't one called
+      it already.  */
+
+  while (1)
+    {
+      FILE *f;
+      sprintf (s, "%s/%s%x.%x", P_tmpdir, "t", pid, tmpnam_counter);
+      f = fopen (s, "r");
+      if (f == NULL)
+	break;
+      tmpnam_counter++;
+      fclose (f);
+    }
+
+  return s;
+}