Make awesome-client exit with a meaningful value on error

As discussed on #awesome, the attached patch makes awesome-client exit
with a meaningful value (i.e. that of errno) when it encounters an
error. Since the most frequent error with awesome-client is a mismatch
in the socket path, there is an explicit case for ENOENT errors. I
thought of adding a matching fprintf in awesome.c, but you can tell what
socket awesome is listening on by looking at what ~/.awesome_ctl.* file
you have.

CAVEAT: Exiting on error may break setups such as:

	while true; do
		echo "some text"
	done | /path/to/awesome-client

which relied on awesome-client continuing to send to the given socket
(although failing) until EOF was encountered on stdin.
This commit is contained in:
Nikos Ntarmos 2007-11-17 12:35:20 +02:00 committed by Julien Danjou
parent 1ff5740104
commit 1a829fd76d

View file

@ -34,7 +34,7 @@ main(int argc, char **argv)
{
struct sockaddr_un *addr;
char buf[1024];
int csfd;
int csfd, ret_value = EXIT_SUCCESS;
csfd = get_client_socket();
if(argc > 1)
@ -46,12 +46,25 @@ main(int argc, char **argv)
return EXIT_FAILURE;
while(fgets(buf, sizeof(buf), stdin))
{
if(sendto(csfd, buf, a_strlen(buf), MSG_NOSIGNAL,
(const struct sockaddr *) addr, sizeof(struct sockaddr_un)) == -1)
perror("error sending datagram");
{
switch (errno)
{
case ENOENT:
fprintf(stderr, "Can't write to %s\n", addr->sun_path);
break;
default:
perror("error sending datagram");
}
ret_value = errno;
break;
}
}
p_delete(&addr);
return EXIT_SUCCESS;
return ret_value;
}
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