makedevs: allow much longer filenames

function                                             old     new   delta
makedevs_main                                       1056    1071     +15

Patch by Kang-Che Sung <explorer09@gmail.com>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 7 insertions, 5 deletions

diff --git a/miscutils/makedevs.c b/miscutils/makedevs.c
index 9e7ca340f..fec1045e4 100644
--- a/miscutils/makedevs.c
+++ b/miscutils/makedevs.c
@@ -208,17 +208,17 @@ int makedevs_main(int argc UNUSED_PARAM, char **argv)
                 unsigned count = 0;
                 unsigned increment = 0;
                 unsigned start = 0;
-                char name[41];
                 char user[41];
                 char group[41];
-                char *full_name = name;
+                char *full_name;
+                int name_len;
                 uid_t uid;
                 gid_t gid;
 
                 linenum = parser->lineno;
 
-                if ((2 > sscanf(line, "%40s %c %o %40s %40s %u %u %u %u %u",
-                                        name, &type, &mode, user, group,
+                if ((1 > sscanf(line, "%*s%n %c %o %40s %40s %u %u %u %u %u",
+                                        &name_len, &type, &mode, user, group,
                                         &major, &minor, &start, &increment, &count))
                  || ((unsigned)(major | minor | start | count | increment) > 255)
                 ) {
@@ -229,9 +229,11 @@ int makedevs_main(int argc UNUSED_PARAM, char **argv)
 
                 gid = (*group) ? get_ug_id(group, xgroup2gid) : getgid();
                 uid = (*user) ? get_ug_id(user, xuname2uid) : getuid();
+                line[name_len] = '\0';
+                full_name = line;
                 /* We are already in the right root dir,
                  * so make absolute paths relative */
-                if ('/' == *full_name)
+                if ('/' == full_name[0])
                         full_name++;
 
                 if (type == 'd') {