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glibc/libio/tst-eof.c
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#include <fcntl.h> | |
#include <stdio.h> | |
#include <string.h> | |
#include <unistd.h> | |
static void do_prepare (void); | |
#define PREPARE(argc, argv) do_prepare () | |
static int do_test (void); | |
#define TEST_FUNCTION do_test () | |
#include <test-skeleton.c> | |
int fd; | |
static void | |
do_prepare (void) | |
{ | |
fd = create_temp_file ("tst-eof.", NULL); | |
if (fd == -1) | |
{ | |
printf ("cannot create temporary file: %m\n"); | |
exit (1); | |
} | |
} | |
static int | |
do_test (void) | |
{ | |
char buf[40]; | |
FILE *fp; | |
if (write (fd, "some string\n", 12) != 12) | |
{ | |
printf ("cannot write temporary file: %m\n"); | |
return 1; | |
} | |
if (lseek (fd, 0, SEEK_SET) == (off_t) -1) | |
{ | |
printf ("cannot reposition temporary file: %m\n"); | |
return 1; | |
} | |
fp = fdopen (fd, "r"); | |
if (fp == NULL) | |
{ | |
printf ("cannot create stream: %m\n"); | |
return 1; | |
} | |
if (feof (fp)) | |
{ | |
puts ("EOF set after fdopen"); | |
return 1; | |
} | |
if (fread (buf, 1, 20, fp) != 12) | |
{ | |
puts ("didn't read the correct number of bytes"); | |
return 1; | |
} | |
if (! feof (fp)) | |
{ | |
puts ("EOF not set after fread"); | |
return 1; | |
} | |
fclose (fp); | |
return 0; | |
} |