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Annotation of GNUtools/libg++/libiberty/tmpnam.c, revision 1.1.1.1

1.1       root        1: #include <stdio.h>
                      2: 
                      3: #ifndef L_tmpnam
                      4: #define L_tmpname 100
                      5: #endif
                      6: #ifndef P_tmpdir
                      7: #define P_tmpdir "/usr/tmp"
                      8: #endif
                      9: 
                     10: static char tmpnam_buffer[L_tmpnam];
                     11: static int tmpnam_counter;
                     12: 
                     13: extern int getpid ();
                     14: 
                     15: char *
                     16: tmpnam (s)
                     17:      char *s;
                     18: {
                     19:   int pid = getpid ();
                     20: 
                     21:   if (s == NULL)
                     22:     s = tmpnam_buffer;
                     23: 
                     24:   /*  Generate the filename and make sure that there isn't one called
                     25:       it already.  */
                     26: 
                     27:   while (1)
                     28:     {
                     29:       FILE *f;
                     30:       sprintf (s, "%s/%s%x.%x", P_tmpdir, "t", pid, tmpnam_counter);
                     31:       f = fopen (s, "r");
                     32:       if (f == NULL)
                     33:        break;
                     34:       tmpnam_counter++;
                     35:       fclose (f);
                     36:     }
                     37: 
                     38:   return s;
                     39: }

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