Use symbolic names for the file descriptors rather than numeric values.

Some from damien@, millert@

ok phessler@, millert@

3 files changed, 16 insertions, 15 deletions

diff --git a/bin/csh/dol.c b/bin/csh/dol.c
index fcb4819c997..864a7906657 100644
--- a/bin/csh/dol.c
+++ b/bin/csh/dol.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: dol.c,v 1.16 2009/10/27 23:59:21 deraadt Exp $	*/
+/*	$OpenBSD: dol.c,v 1.17 2010/08/12 02:00:27 kevlo Exp $	*/
 /*	$NetBSD: dol.c,v 1.8 1995/09/27 00:38:38 jtc Exp $	*/
 
 /*-
@@ -862,8 +862,9 @@ heredoc(Char *term)
 	 * Check for EOF or compare to terminator -- before expansion
 	 */
 	if (c < 0 || eq(lbuf, term)) {
-	    (void) write(0, short2str(obuf), (size_t) (BUFSIZ - ocnt));
-	    (void) lseek(0, (off_t) 0, SEEK_SET);
+	    (void) write(STDIN_FILENO, short2str(obuf), 
+	        (size_t) (BUFSIZ - ocnt));
+	    (void) lseek(STDIN_FILENO, (off_t) 0, SEEK_SET);
 	    return;
 	}
 
@@ -876,7 +877,7 @@ heredoc(Char *term)
 	    for (lbp = lbuf; (c = *lbp++) != '\0';) {
 		*obp++ = c;
 		if (--ocnt == 0) {
-		    (void) write(0, short2str(obuf), BUFSIZ);
+		    (void) write(STDIN_FILENO, short2str(obuf), BUFSIZ);
 		    obp = obuf;
 		    ocnt = BUFSIZ;
 		}
@@ -940,14 +941,14 @@ heredoc(Char *term)
 	    for (mbp = *vp; *mbp; mbp++) {
 		*obp++ = *mbp & TRIM;
 		if (--ocnt == 0) {
-		    (void) write(0, short2str(obuf), BUFSIZ);
+		    (void) write(STDIN_FILENO, short2str(obuf), BUFSIZ);
 		    obp = obuf;
 		    ocnt = BUFSIZ;
 		}
 	    }
 	    *obp++ = '\n';
 	    if (--ocnt == 0) {
-		(void) write(0, short2str(obuf), BUFSIZ);
+		(void) write(STDIN_FILENO, short2str(obuf), BUFSIZ);
 		obp = obuf;
 		ocnt = BUFSIZ;
 	    }
diff --git a/bin/csh/sem.c b/bin/csh/sem.c
index c4d0255dadc..3d4d0428ffe 100644
--- a/bin/csh/sem.c
+++ b/bin/csh/sem.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: sem.c,v 1.16 2009/10/27 23:59:21 deraadt Exp $	*/
+/*	$OpenBSD: sem.c,v 1.17 2010/08/12 02:00:27 kevlo Exp $	*/
 /*	$NetBSD: sem.c,v 1.9 1995/09/27 00:38:50 jtc Exp $	*/
 
 /*-
@@ -546,7 +546,7 @@ doio(struct command *t, int *pipein, int *pipeout)
 	else {
 	    (void) close(0);
 	    (void) dup(OLDSTD);
-	    (void) ioctl(0, FIONCLEX, NULL);
+	    (void) ioctl(STDIN_FILENO, FIONCLEX, NULL);
 	}
     }
     if (t->t_drit) {
@@ -565,7 +565,7 @@ doio(struct command *t, int *pipein, int *pipeout)
 	    (fd = open(tmp, O_WRONLY | O_APPEND)) >= 0);
 #else
 	    (fd = open(tmp, O_WRONLY)) >= 0)
-	    (void) lseek(1, (off_t) 0, SEEK_END);
+	    (void) lseek(STDOUT_FILENO, (off_t) 0, SEEK_END);
 #endif
 	else {
 	    if (!(flags & F_OVERWRITE) && adrof(STRnoclobber)) {
@@ -585,7 +585,7 @@ doio(struct command *t, int *pipein, int *pipeout)
     else {
 	(void) close(1);
 	(void) dup(SHOUT);
-	(void) ioctl(1, FIONCLEX, NULL);
+	(void) ioctl(STDOUT_FILENO, FIONCLEX, NULL);
     }
 
     (void) close(2);
@@ -594,7 +594,7 @@ doio(struct command *t, int *pipein, int *pipeout)
     }
     else {
 	(void) dup(SHERR);
-	(void) ioctl(2, FIONCLEX, NULL);
+	(void) ioctl(STDERR_FILENO, FIONCLEX, NULL);
     }
     didfds = 1;
 }
diff --git a/bin/ed/main.c b/bin/ed/main.c
index a12f83aeaca..92943b53cae 100644
--- a/bin/ed/main.c
+++ b/bin/ed/main.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: main.c,v 1.33 2009/10/27 23:59:21 deraadt Exp $	*/
+/*	$OpenBSD: main.c,v 1.34 2010/08/12 02:00:28 kevlo Exp $	*/
 /*	$NetBSD: main.c,v 1.3 1995/03/21 09:04:44 cgd Exp $	*/
 
 /* main.c: This file contains the main control and user-interface routines
@@ -150,8 +150,8 @@ top:
 		struct stat sb;
 
 		/* assert: pipes show up as fifo's when fstat'd */
-		if (fstat(0, &sb) || !S_ISFIFO(sb.st_mode)) {
-			if (lseek(0, 0, SEEK_CUR)) {
+		if (fstat(STDIN_FILENO, &sb) || !S_ISFIFO(sb.st_mode)) {
+			if (lseek(STDIN_FILENO, 0, SEEK_CUR)) {
 				interactive = 1;
 				setlinebuf(stdout);
 			}
@@ -1436,7 +1436,7 @@ handle_winch(int signo)
 	struct winsize ws;		/* window size structure */
 
 	sigflags &= ~(1 << (signo - 1));
-	if (ioctl(0, TIOCGWINSZ, &ws) >= 0) {
+	if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) >= 0) {
 		if (ws.ws_row > 2)
 			rows = ws.ws_row - 2;
 		if (ws.ws_col > 8)