src/functional/fdopen.c

   1 #include <errno.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <string.h>
   5 #include <unistd.h>
   6 #include "test.h"
   7
   8 #define TEST(c) do { \
   9         errno = 0; \
  10         if (!(c)) \
  11                 t_error("%s failed (errno = %d)\n", #c, errno); \
  12 } while(0)
  13
  14 int main(void)
  15 {
  16         char tmp[] = "/tmp/testsuite-XXXXXX";
  17         char foo[6];
  18         int fd;
  19         FILE *f;
  20
  21         TEST((fd = mkstemp(tmp)) > 2);
  22         TEST(write(fd, "hello", 6)==6);
  23         TEST(f = fdopen(fd, "rb"));
  24         if (f) {
  25                 TEST(ftello(f)==6);
  26                 TEST(fseeko(f, 0, SEEK_SET)==0);
  27                 TEST(fgets(foo, sizeof foo, f));
  28                 if (strcmp(foo,"hello") != 0)
  29                         t_error("fgets read back: \"%s\"; wanted: \"hello\"\n", foo);
  30                 fclose(f);
  31         }
  32         if (fd > 2)
  33                 TEST(unlink(tmp) != -1);
  34         return t_status;
  35 }