| /* Check that TRT happens for pipe corner cases. |
| #notarget: cris*-*-elf |
| */ |
| #include <stddef.h> |
| #include <signal.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <errno.h> |
| #include <limits.h> |
| |
| void err (const char *s) |
| { |
| perror (s); |
| abort (); |
| } |
| |
| int main (void) |
| { |
| int pip[2]; |
| char c; |
| int pipemax; |
| |
| if (pipe (pip) != 0) |
| err ("pipe"); |
| |
| #ifdef PIPE_MAX |
| pipemax = PIPE_MAX; |
| #else |
| pipemax = fpathconf (pip[1], _PC_PIPE_BUF); |
| #endif |
| |
| if (pipemax <= 0) |
| { |
| fprintf (stderr, "Bad pipemax %d\n", pipemax); |
| abort (); |
| } |
| |
| /* Writing to wrong end of pipe. */ |
| if (write (pip[0], "argh", 1) != -1 |
| || errno != EBADF) |
| err ("write pipe"); |
| |
| errno = 0; |
| |
| /* Reading from wrong end of pipe. */ |
| if (read (pip[1], &c, 1) != -1 |
| || errno != EBADF) |
| err ("write pipe"); |
| |
| errno = 0; |
| |
| if (close (pip[0]) != 0) |
| err ("close"); |
| |
| if (signal (SIGPIPE, SIG_IGN) != SIG_DFL) |
| err ("signal"); |
| |
| /* Writing to pipe with closed read end. */ |
| if (write (pip[1], "argh", 1) != -1 |
| || errno != EPIPE) |
| err ("write closed"); |
| |
| printf ("pass\n"); |
| exit (0); |
| } |