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-rw-r--r--gcc-4.2.1-5666.3/libiberty/tmpnam.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/gcc-4.2.1-5666.3/libiberty/tmpnam.c b/gcc-4.2.1-5666.3/libiberty/tmpnam.c
new file mode 100644
index 000000000..cc3433366
--- /dev/null
+++ b/gcc-4.2.1-5666.3/libiberty/tmpnam.c
@@ -0,0 +1,52 @@
+/*
+
+@deftypefn Supplemental char* tmpnam (char *@var{s})
+
+This function attempts to create a name for a temporary file, which
+will be a valid file name yet not exist when @code{tmpnam} checks for
+it. @var{s} must point to a buffer of at least @code{L_tmpnam} bytes,
+or be @code{NULL}. Use of this function creates a security risk, and it must
+not be used in new projects. Use @code{mkstemp} instead.
+
+@end deftypefn
+
+*/
+
+#include <stdio.h>
+
+#ifndef L_tmpnam
+#define L_tmpnam 100
+#endif
+#ifndef P_tmpdir
+#define P_tmpdir "/usr/tmp"
+#endif
+
+static char tmpnam_buffer[L_tmpnam];
+static int tmpnam_counter;
+
+extern int getpid (void);
+
+char *
+tmpnam (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;
+}