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/*
20140410
Jan Mojzis
Public domain.
*/
#include <signal.h>
#include <unistd.h>
#include "run.h"
#include "fail.h"
#include "open.h"
static void cat(void) {
char *catcmd[2] = { (char *)"cat", 0 };
execvp(*catcmd, catcmd);
}
/* test if close-on-exec works for open_read() */
static void test1(void) {
int fd;
close(0);
fd = open_read("opentest.c");
if (fd != 0) fail("unable to open opentest.c for reading");
cat();
}
/* test if close-on-exec works for open_write() */
static void test2(void) {
int fd;
close(1);
fd = open_write("opentest.data");
if (fd != 1) fail("unable to open opentest.data for writing");
cat();
}
/* test if close-on-exec works for open_pipe() */
static void test3(void) {
int fd, pi[2];
close(0);
close(1);
fd = open_pipe(pi);
if (fd == -1) fail("unable to open pipe");
if (pi[0] != 0) fail("unable to open pipe");
if (pi[1] != 1) fail("unable to open pipe");
cat();
}
/* dummy test */
static void testdummy(void) {
_exit(0);
}
int main(void) {
alarm(10);
run_mustfail(test1);
run_mustfail(test2);
run_mustfail(test3);
run_mustpass(testdummy);
_exit(0);
}
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