The sprint removal patch for the boot directory.

Reference: /n/sources/patch/saved/remove-sprint-boot
Date: Fri Feb 25 22:21:12 CET 2011
Signed-off-by: 20h@r-36.net

--- /sys/src/9/boot/settime.c	Fri Feb 25 22:16:47 2011
+++ /sys/src/9/boot/settime.c	Fri Feb 25 22:16:44 2011
@@ -50,7 +50,7 @@
 		if(stat("/tmp", statbuf, sizeof statbuf) < 0)
 			fatal("stat");
 		convM2D(statbuf, sizeof statbuf, &dir[0], (char*)&dir[1]);
-		sprint(timebuf, "%ld", dir[0].atime);
+		snprint(timebuf, sizeof(timebuf), "%ld", dir[0].atime);
 		unmount(0, "/tmp");
 	}
 
@@ -144,6 +144,6 @@
 	if(*buf)
 		secs += g2(&buf);
 
-	sprint(argbuf, "%ld", secs);
+	snprint(argbuf, 64, "%ld", secs); /* buffer size taken from timebuf above. */
 	return secs;
 }
--- /sys/src/9/boot/sac.c	Fri Feb 25 22:16:53 2011
+++ /sys/src/9/boot/sac.c	Fri Feb 25 22:16:50 2011
@@ -36,7 +36,7 @@
 	write(fd, "brick", 5);
 	close(fd);
 
-	sprint(cmd, "/%s/init", cputype);
+	snprint(cmd, sizeof(cmd), "/%s/init", cputype);
 	print("starting %s\n", cmd);
 	execl(cmd, "init", "-c", 0);
 	fatal(cmd);
--- /sys/src/9/boot/local.c	Fri Feb 25 22:16:59 2011
+++ /sys/src/9/boot/local.c	Fri Feb 25 22:16:56 2011
@@ -25,7 +25,7 @@
 		 */
 		p = strchr(argv0, ',');
 		n = strtoul(p+1, 0, 10);
-		sprint(diskname, "#w%d/sd%dfs", n, n);
+		snprint(diskname, sizeof(diskname), "#w%d/sd%dfs", n, n);
 		disk = diskname;
 	} else if(mp->arg){
 		/*
--- /sys/src/9/boot/doauthenticate.c	Fri Feb 25 22:17:04 2011
+++ /sys/src/9/boot/doauthenticate.c	Fri Feb 25 22:17:02 2011
@@ -33,26 +33,26 @@
 		fatal("no method for accessing auth server");
 	afd = (*mp->auth)();
 	if(afd < 0) {
-		sprint(error, "%s: %r", ccmsg);
+		snprint(error, sizeof(error), "%s: %r", ccmsg);
 		return error;
 	}
 
 	if(write(afd, trbuf, TICKREQLEN) < 0 || read(afd, &t, 1) != 1){
 		close(afd);
-		sprint(error, "%s: %r", pbmsg);
+		snprint(error, sizeof(error), "%s: %r", pbmsg);
 		return error;
 	}
 	switch(t){
 	case AuthOK:
 		msg = 0;
 		if(readn(afd, tbuf, 2*TICKETLEN) < 0) {
-			sprint(error, "%s: %r", pbmsg);
+			snprint(error, sizeof(error), "%s: %r", pbmsg);
 			msg = error;
 		}
 		break;
 	case AuthErr:
 		if(readn(afd, error, ERRMAX) < 0) {
-			sprint(error, "%s: %r", pbmsg);
+			snprint(error, sizeof(error), "%s: %r", pbmsg);
 			msg = error;
 		}
 		else {
--- /sys/src/9/boot/bootcache.c	Fri Feb 25 22:17:10 2011
+++ /sys/src/9/boot/bootcache.c	Fri Feb 25 22:17:07 2011
@@ -42,12 +42,12 @@
 				bd[i-2] = 0;
 			else if(strcmp("fossil", &bd[i-6]) == 0)
 				bd[i-6] = 0;
-			sprint(partition, "%scache", bd);
+			snprint(partition, sizeof(partition), "%scache", bd);
 			if(stat(partition, statbuf, sizeof statbuf) < 0)
 				*bd = 0;
 		}
 		if(*bd == 0){
-			sprint(partition, "%scache", bootdisk);
+			snprint(partition, sizeof(partition), "%scache", bootdisk);
 			if(stat(partition, statbuf, sizeof statbuf) < 0)
 				return fd;
 		}
--- /sys/src/9/boot/boot.c	Fri Feb 25 22:17:16 2011
+++ /sys/src/9/boot/boot.c	Fri Feb 25 22:17:13 2011
@@ -167,7 +167,7 @@
 
 	cmd = getenv("init");
 	if(cmd == nil){
-		sprint(cmdbuf, "/%s/init -%s%s", cputype,
+		snprint(cmdbuf, sizeof(cmdbuf), "/%s/init -%s%s", cputype,
 			cpuflag ? "c" : "t", mflag ? "m" : "");
 		cmd = cmdbuf;
 	}
@@ -233,10 +233,10 @@
 
 	/* make list of methods */
 	mp = method;
-	n = sprint(prompt, "root is from (%s", mp->name);
+	n = snprint(prompt, sizeof(prompt), "root is from (%s", mp->name);
 	for(mp++; mp->name; mp++)
-		n += sprint(prompt+n, ", %s", mp->name);
-	sprint(prompt+n, ")");
+		n += snprint(prompt+n, sizeof(prompt)-n, ", %s", mp->name);
+	snprint(prompt+n, sizeof(prompt)-n, ")");
 
 	/* create default reply */
 	readfile("#e/bootargs", reply, sizeof(reply));