[PATCH 1/5] Remove insane *_FILENO and EXIT_* usage

From: FRIGN <dev_AT_frign.de>
Date: Wed, 8 Jul 2015 17:00:16 +0200

Any system having different assignments than the usual 0, 1, 2 for
the standard file numbers and 0, 1 for the exit-statuses is broken
beyond repair.
Let's keep it simple and just use the numbers, no reason to fall
out of the window here and bend down for POSIX.

---
 st.c | 27 ++++++++++++---------------
 1 file changed, 12 insertions(+), 15 deletions(-)
diff --git a/st.c b/st.c
index b89d094..0260562 100644
--- a/st.c
+++ b/st.c
_AT_@ -513,7 +513,7 @@ static STREscape strescseq;
 static int cmdfd;
 static pid_t pid;
 static Selection sel;
-static int iofd = STDOUT_FILENO;
+static int iofd = 1;
 static char **opt_cmd = NULL;
 static char *opt_io = NULL;
 static char *opt_title = NULL;
_AT_@ -1207,7 +1207,7 @@ die(const char *errstr, ...) {
 	va_start(ap, errstr);
 	vfprintf(stderr, errstr, ap);
 	va_end(ap);
-	exit(EXIT_FAILURE);
+	exit(1);
 }
 
 void
_AT_@ -1256,12 +1256,12 @@ execsh(void) {
 	signal(SIGALRM, SIG_DFL);
 
 	execvp(prog, args);
-	_exit(EXIT_FAILURE);
+	_exit(1);
 }
 
 void
 sigchld(int a) {
-	int stat, ret;
+	int stat;
 	pid_t p;
 
 	if((p = waitpid(pid, &stat, WNOHANG)) < 0)
_AT_@ -1270,10 +1270,9 @@ sigchld(int a) {
 	if(pid != p)
 		return;
 
-	ret = WIFEXITED(stat) ? WEXITSTATUS(stat) : EXIT_FAILURE;
-	if (ret != EXIT_SUCCESS)
+	if (!WIFEXITED(stat) || WEXITSTATUS(stat))
 		die("child finished with error '%d'\n", stat);
-	exit(EXIT_SUCCESS);
+	exit(0);
 }
 
 
_AT_@ -1308,9 +1307,7 @@ ttynew(void) {
 
 	if(opt_io) {
 		term.mode |= MODE_PRINT;
-		iofd = (!strcmp(opt_io, "-")) ?
-			  STDOUT_FILENO :
-			  open(opt_io, O_WRONLY | O_CREAT, 0666);
+		iofd = (!strcmp(opt_io, "-")) ? 1 : open(opt_io, O_WRONLY | O_CREAT, 0666);
 		if(iofd < 0) {
 			fprintf(stderr, "Error opening %s:%s\n",
 				opt_io, strerror(errno));
_AT_@ -1320,7 +1317,7 @@ ttynew(void) {
 	if (opt_line) {
 		if((cmdfd = open(opt_line, O_RDWR)) < 0)
 			die("open line failed: %s\n", strerror(errno));
-		close(STDIN_FILENO);
+		close(0);
 		dup(cmdfd);
 		stty();
 		return;
_AT_@ -1337,9 +1334,9 @@ ttynew(void) {
 	case 0:
 		close(iofd);
 		setsid(); /* create a new process group */
-		dup2(s, STDIN_FILENO);
-		dup2(s, STDOUT_FILENO);
-		dup2(s, STDERR_FILENO);
+		dup2(s, 0);
+		dup2(s, 1);
+		dup2(s, 2);
 		if(ioctl(s, TIOCSCTTY, NULL) < 0)
 			die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
 		close(s);
_AT_@ -3871,7 +3868,7 @@ cmessage(XEvent *e) {
 	} else if(e->xclient.data.l[0] == xw.wmdeletewin) {
 		/* Send SIGHUP to shell */
 		kill(pid, SIGHUP);
-		exit(EXIT_SUCCESS);
+		exit(0);
 	}
 }
 
-- 
1.8.5.5
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Received on Mon Sep 17 2001 - 00:00:00 CEST