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* winsup.api/systemcall.c: New file. Check for system call problems.

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Christopher Faylor 2001-10-05 02:29:46 +00:00
parent af39152f4c
commit ca7320ac2c
2 changed files with 62 additions and 0 deletions
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4
winsup/testsuite/ChangeLog
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@ -1,3 +1,7 @@
Thu Oct 4 22:19:39 2001 Christopher Faylor <cgf@cygnus.com>
* winsup.api/systemcall.c: New file. Check for system call problems.
2001-09-20 Egor Duda <deo@logos-m.ru> 2001-09-20 Egor Duda <deo@logos-m.ru>
* libltp/lib/get_high_address.c (get_high_address): Get inaccessible * libltp/lib/get_high_address.c (get_high_address): Get inaccessible

58
winsup/testsuite/winsup.api/systemcall.c Normal file
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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
int
main (int argc, char **argv)
{
int fd, pid, n;
int fds[2];
static char buf[4096];
close (1);
if ((fd = open ("/dev/null", O_WRONLY)) != 1)
{
fprintf (stderr, "couldn't redirect stdout to /dev/null, fd %d - %s\n", fd, strerror ());
exit (1);
}
if (pipe (fds))
{
fprintf (stderr, "pipe call failed - %s\n", strerror ());
exit (1);
}
if ((pid = fork ()) == 0)
{
close (fds[0]);
if (dup2 (fds[1], 2) != 2)
{
fprintf (stderr, "couldn't redirect stderr to pipe - %s\n", strerror ());
exit (1);
}
exit (system ("ls"));
}
else if (pid < 0)
{
perror ("couldn't fork");
exit (1);
}
close (fds[1]);
if (read (fds[0], buf, 4096) != 0)
{
fprintf (stderr, "system call failed?\n%s\n", buf);
exit (1);
}
if (waitpid (pid, &n, 0) < 0)
{
perror ("waitpid failed");
exit (1);
}
if (n != 0)
{
fprintf (stderr, "system() call returend %p\n", n);
exit (1);
}
exit (0);
}