1 /************************************************
  2  * test the tmp_name function.                  *
  3  ************************************************/
  4 #include <iostream>
  5 #include <cstdio>
  6 #include <cstring>
  7 #include <sys/param.h>
  8 /************************************************
  9  * tmp_name -- return a temporary file name.    *
 10  *                                              *
 11  * Each time this function is called, a new     *
 12  *      name will be returned.                  *
 13  *                                              *
 14  * Returns                                      *
 15  *      Pointer to the new file name.           *
 16  ************************************************/
 17 char *tmp_name(void)
 18 {
 19     // The name we are generating
 20     static char name[MAXPATHLEN];
 21
 22     // The directory to put the temporary file in
 23     const char DIR[] = "/var/tmp/tmp";
 24
 25     // Sequence number for last digit
 26     static int sequence = 0;
 27
 28     ++sequence; /* Move to the next file name */
 29
 30     std::sprintf(name, "%s.%d", DIR, sequence);
 31     return(name);
 32 }
 33
 34 int main()
 35 {
 36     // The first temporary name
 37     char *a_name = tmp_name();
 38
 39     // The second temporary name
 40     char *b_name = tmp_name();
 41
 42     std::cout << "Name (a): " << a_name << endl;
 43     std::cout << "Name (b): " << b_name << endl;
 44     return(0);
 45 }