git.scottworley.com Git - overonion/blob - temp_file.c

   1 #define _GNU_SOURCE
   2
   3 #include "temp_file.h"
   4
   5 #include <err.h>
   6 #include <stdlib.h>
   7 #include <stdio.h>
   8 #include <sysexits.h>
   9
  10 void make_temporary_file(char** temp_filename, FILE** temp_file) {
  11   char* TMPDIR = getenv("TMPDIR");
  12   if (TMPDIR == NULL) {
  13     TMPDIR = "/tmp";
  14   }
  15   if (asprintf(temp_filename, "%s/reverse.XXXXXX", TMPDIR) == -1) {
  16     errx(EX_OSERR, "Could not assemble temporary filename");
  17   }
  18   int fd = mkstemp(*temp_filename);
  19   if (fd == -1) err(EX_IOERR, "Could not make a temporary file");
  20   *temp_file = fdopen(fd, "w");
  21   if (*temp_file == NULL) err(EX_IOERR, "Could not open temporary file");
  22 }