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#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#define TEST(r, f, x, m) ( \
((r) = (f)) == (x) || \
(printf(__FILE__ ":%d: %s failed (" m ")\n", __LINE__, #f, r, x), err++, 0) )
#define TEST_E(f) ( (errno = 0), (f) || \
(printf(__FILE__ ":%d: %s failed (errno = %d)\n", __LINE__, #f, errno), err++, 0) )
#define TEST_S(s, x, m) ( \
!strcmp((s),(x)) || \
(printf(__FILE__ ":%d: [%s] != [%s] (%s)\n", __LINE__, s, x, m), err++, 0) )
int test_fdopen(void)
{
char tmp[] = "/tmp/testsuite-XXXXXX";
char foo[6];
int fd;
int err = 0;
FILE *f;
TEST_E((fd = mkstemp(tmp)) > 2);
TEST_E(write(fd, "hello", 6)==6);
TEST_E(f = fdopen(fd, "rb"));
if (f) {
TEST_E(ftello(f)==6);
TEST_E(fseeko(f, 0, SEEK_SET)==0);
TEST_E(fgets(foo, sizeof foo, f));
TEST_S(foo, "hello", "fgets read back wrong message");
fclose(f);
}
if (fd > 2) TEST_E(unlink(tmp) != -1);
return err;
}
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