add NOMMU fixme's; move move_fd from runit_lib to libbb; nuke fd_copy

5 files changed, 9 insertions, 47 deletions

diff --git a/runit/runit_lib.c b/runit/runit_lib.c
index 0830314..4762096 100644
--- a/runit/runit_lib.c
+++ b/runit/runit_lib.c
@@ -61,34 +61,6 @@ int coe(int fd)
 }
 
 
-/*** fd_copy.c ***/
-
-int fd_copy(int to,int from)
-{
-	if (to == from)
-		return 0;
-	if (fcntl(from,F_GETFL,0) == -1)
-		return -1;
-	close(to);
-	if (fcntl(from,F_DUPFD,to) == -1)
-		return -1;
-	return 0;
-}
-
-
-/*** fd_move.c ***/
-
-int fd_move(int to,int from)
-{
-	if (to == from)
-		return 0;
-	if (fd_copy(to,from) == -1)
-		return -1;
-	close(from);
-	return 0;
-}
-
-
 /*** fmt_ptime.c ***/
 
 void fmt_ptime30nul(char *s, struct taia *ta) {
diff --git a/runit/runit_lib.h b/runit/runit_lib.h
index 7b268e2..9fe4166 100644
--- a/runit/runit_lib.h
+++ b/runit/runit_lib.h
@@ -40,12 +40,6 @@ extern int coe(int);
 #define direntry struct dirent
 
 
-/*** fd.h ***/
-
-extern int fd_copy(int,int);
-extern int fd_move(int,int);
-
-
 /*** tai.h ***/
 
 struct tai {
diff --git a/runit/runsv.c b/runit/runsv.c
index cd80685..0184568 100644
--- a/runit/runsv.c
+++ b/runit/runsv.c
@@ -251,7 +251,7 @@ static unsigned custom(struct svdir *s, char c)
 				return 0;
 			}
 			if (!pid) {
-				if (haslog && fd_copy(1, logpipe[1]) == -1)
+				if (haslog && dup2(logpipe[1], 1) == -1)
 					warn_cannot("setup stdout for control/?");
 				prog[0] = a;
 				prog[1] = NULL;
@@ -312,13 +312,13 @@ static void startservice(struct svdir *s)
 		/* child */
 		if (haslog) {
 			if (s->islog) {
-				if (fd_copy(0, logpipe[0]) == -1)
+				if (dup2(logpipe[0], 0) == -1)
 					fatal_cannot("setup filedescriptor for ./log/run");
 				close(logpipe[1]);
 				if (chdir("./log") == -1)
 					fatal_cannot("change directory to ./log");
 			} else {
-				if (fd_copy(1, logpipe[1]) == -1)
+				if (dup2(logpipe[1], 1) == -1)
 					fatal_cannot("setup filedescriptor for ./run");
 				close(logpipe[0]);
 			}
diff --git a/runit/runsvdir.c b/runit/runsvdir.c
index 2f54cfe..cce2c5d 100644
--- a/runit/runsvdir.c
+++ b/runit/runsvdir.c
@@ -191,7 +191,7 @@ static int setup_log(void)
 	coe(logpipe[0]);
 	ndelay_on(logpipe[0]);
 	ndelay_on(logpipe[1]);
-	if (fd_copy(2, logpipe[1]) == -1) {
+	if (dup2(logpipe[1], 2) == -1) {
 		warnx("cannot set filedescriptor for log");
 		return -1;
 	}
diff --git a/runit/svlogd.c b/runit/svlogd.c
index e454bac..fb834a4 100644
--- a/runit/svlogd.c
+++ b/runit/svlogd.c
@@ -153,12 +153,10 @@ static unsigned processorstart(struct logdir *ld)
 		if (verbose)
 			bb_error_msg(INFO"processing: %s/%s", ld->name, ld->fnsave);
 		fd = xopen(ld->fnsave, O_RDONLY|O_NDELAY);
-		if (fd_move(0, fd) == -1)
-			bb_perror_msg_and_die(FATAL"cannot %s processor %s", "move filedescriptor for", ld->name);
+		xmove_fd(fd, 0);
 		ld->fnsave[26] = 't';
 		fd = xopen(ld->fnsave, O_WRONLY|O_NDELAY|O_TRUNC|O_CREAT);
-		if (fd_move(1, fd) == -1)
-			bb_perror_msg_and_die(FATAL"cannot %s processor %s", "move filedescriptor for", ld->name);
+		xmove_fd(fd, 1);
 		fd = open_read("state");
 		if (fd == -1) {
 			if (errno != ENOENT)
@@ -166,17 +164,15 @@ static unsigned processorstart(struct logdir *ld)
 			close(xopen("state", O_WRONLY|O_NDELAY|O_TRUNC|O_CREAT));
 			fd = xopen("state", O_RDONLY|O_NDELAY);
 		}
-		if (fd_move(4, fd) == -1)
-			bb_perror_msg_and_die(FATAL"cannot %s processor %s", "move filedescriptor for", ld->name);
+		xmove_fd(fd, 4);
 		fd = xopen("newstate", O_WRONLY|O_NDELAY|O_TRUNC|O_CREAT);
-		if (fd_move(5, fd) == -1)
-			bb_perror_msg_and_die(FATAL"cannot %s processor %s", "move filedescriptor for", ld->name);
+		xmove_fd(fd, 5);
 
 // getenv("SHELL")?
 		prog[0] = (char*)"sh";
 		prog[1] = (char*)"-c";
 		prog[2] = ld->processor;
-		prog[3] = '\0';
+		prog[3] = NULL;
 		execve("/bin/sh", prog, environ);
 		bb_perror_msg_and_die(FATAL"cannot %s processor %s", "run", ld->name);
 	}