patch 2.4.21 better static buffer check

[Walter Harms]

hi list,
writing via sprintf() into static buffers is only asking
for trouble, IMHO. Therefor I changed do_mount.c to use
snprintf() instead of sprintf(). 

regards,
walter

--- init/do_mounts.c.org        2003-06-24 22:05:02.000000000 +0200
+++ init/do_mounts.c    2003-06-24 22:25:03.000000000 +0200
@@ -421,7 +421,7 @@
        int fd;
        va_list args;
        va_start(args, fmt);
-       vsprintf(buf, fmt, args);
+       vsnprintf(buf,sizeof(buf),fmt, args);
        va_end(args);
        fd = open("/dev/root", O_RDWR | O_NDELAY, 0);
        if (fd >= 0) {
@@ -710,16 +710,16 @@
             return;
        lun = simple_strtol(p, &p, 10);
        if (!part)
-            sprintf(dest, "%s/host%d/bus%d/target%d/lun%d",
+            snprintf(dest,sizeof(dest), "%s/host%d/bus%d/target%d/lun%d",
                        prefix, host, bus, target, lun);
        else if (*p++ == 'p')
-            sprintf(dest, "%s/host%d/bus%d/target%d/lun%d/part%s",
+            snprintf(dest,sizeof(dest), "%s/host%d/bus%d/target%d/lun%d/part%s",
                        prefix, host, bus, target, lun, p);
        else
-            sprintf(dest, "%s/host%d/bus%d/target%d/lun%d/disc",
+            snprintf(dest,sizeof(dest), "%s/host%d/bus%d/target%d/lun%d/disc",
                        prefix, host, bus, target, lun);
        *base = '\0';
-       sprintf(src, "/dev/%s", name);
+       snprintf(src,sizeof(src), "/dev/%s", name);
        sys_mkdir(src, 0755);
        *base = '/';
        sprintf(src, "/dev/%s", name);
@@ -801,7 +801,8 @@
 #ifdef CONFIG_BLK_DEV_INITRD
        int ram0 = kdev_t_to_nr(MKDEV(RAMDISK_MAJOR,0));
        int error;
-       int i, pid;
+       int i;
+       pid_t pid;
 
        create_dev("/dev/root.old", ram0, NULL);
        /* mount initrd on rootfs' /root */

--