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#include <compat-cloexec.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#ifdef _POSIX_C_SOURCE
# include <fcntl.h>
#else
# define O_RDONLY 0
# define O_RDWR 0
# define O_APPEND 0
#endif
static void fail(char *msg, int line)
{
fprintf(stderr, "%s:%u %s\n", __FILE__, line, msg);
abort();
}
static void check_file(FILE *f, int exp_flags, bool is_cloexec, int line)
{
int flags;
int fd;
if (!f)
fail("fopen() failed", line);
#ifndef _POSIX_C_SOURCE
(void)flags;
(void)fd;
(void)exp_flags;
(void)is_cloexec;
#else
fd = fileno(f);
if (fd < 0)
fail("failed to get fd", line);
flags = fcntl(fd, F_GETFD);
if (O_CLOEXEC != 0) {
if (is_cloexec != (((flags & FD_CLOEXEC) != 0)))
fail("O_CLOEXEC mismatch", line);
}
flags = fcntl(fd, F_GETFL);
flags &= (O_RDONLY | O_WRONLY | O_RDWR | O_APPEND);
if (flags != exp_flags)
fail("flag mismatch", line);
#endif
fclose(f);
}
int main(void) {
FILE *f;
f = _rrd_fopen("/dev/null", "r");
check_file(f, O_RDONLY, false, __LINE__);
f = _rrd_fopen("/dev/null", "re");
check_file(f, O_RDONLY, true, __LINE__);
f = _rrd_fopen("/dev/null", "w+be");
check_file(f, O_RDWR, true, __LINE__);
f = _rrd_fopen("/dev/null", "a+be");
check_file(f, O_RDWR | O_APPEND, true, __LINE__);
}
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