diff options
| -rw-r--r-- | main.c | 2 | ||||
| -rw-r--r-- | util.c | 37 | 
2 files changed, 17 insertions, 22 deletions
@@ -567,8 +567,8 @@ static bool run_key_handler(const char *key, unsigned int mask)  	if (pfd.writefd < 0)  		return false;  	if ((pfs = fdopen(pfd.writefd, "w")) == NULL) { -		close(pfd.writefd);  		error(0, errno, "open pipe"); +		close(pfd.writefd);  		return false;  	} @@ -233,8 +233,7 @@ spawn_t spawn(const char *cmd, char *const argv[], unsigned int flags)  {  	pid_t pid;  	spawn_t status = { -1, -1, -1 }; -	int pfd_read[2] = { -1, -1 }; -	int pfd_write[2] = { -1, -1 }; +	int pfd_read[2] = { -1, -1 }, pfd_write[2] = { -1, -1 };  	const bool r = flags & X_READ;  	const bool w = flags & X_WRITE; @@ -247,16 +246,18 @@ spawn_t spawn(const char *cmd, char *const argv[], unsigned int flags)  	}  	if (w && pipe(pfd_write) < 0) { +		error(0, errno, "pipe: %s", cmd);  		if (r) {  			close(pfd_read[0]);  			close(pfd_read[1]);  		} -		error(0, errno, "pipe: %s", cmd);  		return status;  	} -	if ((pid = fork()) == 0) { -		bool err = (r && dup2(pfd_read[1], 1) < 0) || (w && dup2(pfd_write[0], 0) < 0); +	if ((pid = fork()) == 0) { /* in child */ +		if ((r && dup2(pfd_read[1], 1) < 0) || (w && dup2(pfd_write[0], 0) < 0)) +			error(EXIT_FAILURE, errno, "dup2: %s", cmd); +  		if (r) {  			close(pfd_read[0]);  			close(pfd_read[1]); @@ -265,29 +266,23 @@ spawn_t spawn(const char *cmd, char *const argv[], unsigned int flags)  			close(pfd_write[0]);  			close(pfd_write[1]);  		} - -		if (err) -			error(EXIT_FAILURE, errno, "dup2: %s", cmd);  		execv(cmd, argv);  		error(EXIT_FAILURE, errno, "exec: %s", cmd); -	} - -	if (r) -		close(pfd_read[1]); -	if (w) -		close(pfd_write[0]); - -	if (pid < 0) { +	} else if (pid < 0) { /* fork failed */ +		error(0, errno, "fork: %s", cmd);  		if (r)  			close(pfd_read[0]);  		if (w)  			close(pfd_write[1]); -		error(0, errno, "fork: %s", cmd); -		return status; +	} else { /* in parent */ +		status.pid = pid; +		status.readfd = pfd_read[0]; +		status.writefd = pfd_write[1];  	} -	status.pid = pid; -	status.readfd = pfd_read[0]; -	status.writefd = pfd_write[1]; +	if (r) +		close(pfd_read[1]); +	if (w) +		close(pfd_write[0]);  	return status;  }  | 
