diff options
Diffstat (limited to 'test/misc/popen.c')
-rw-r--r-- | test/misc/popen.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/test/misc/popen.c b/test/misc/popen.c new file mode 100644 index 000000000..868b70eed --- /dev/null +++ b/test/misc/popen.c @@ -0,0 +1,47 @@ +#include <unistd.h> +#include <stdio.h> +#include <errno.h> +#include <string.h> +#include <signal.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) ) + +static sig_atomic_t got_sig; + +static void handler(int sig) +{ + got_sig = 1; +} + +int main(void) +{ + int i; + char foo[6]; + char cmd[64]; + int err = 0; + FILE *f; + + TEST_E(f = popen("echo hello", "r")); + TEST_E(fgets(foo, sizeof foo, f)); + TEST_S(foo, "hello", "child process did not say hello"); + TEST(i, pclose(f), 0, "exit status %04x != %04x"); + + signal(SIGUSR1, handler); + snprintf(cmd, sizeof cmd, "read a ; test \"x$a\" = xhello && kill -USR1 %d", getpid()); + TEST_E(f = popen(cmd, "w")); + TEST_E(fputs("hello", f) >= 0); + TEST(i, pclose(f), 0, "exit status %04x != %04x"); + signal(SIGUSR1, SIG_DFL); + TEST(i, got_sig, 1, "child process did not send signal (%i!=%i)"); + + return err; +} |