[hackers] [ubase] pwdx: fix off-by-one bug || Mattias Andrée

[git]

commit 5b16e8a4eb5075155ff87ec5595abeb705a6aab4
Author:     Mattias Andrée <maand...@kth.se>
AuthorDate: Sat Mar 26 15:46:29 2016 +0100
Commit:     sin <s...@2f30.org>
CommitDate: Wed Apr 20 23:08:51 2016 +0100

    pwdx: fix off-by-one bug
    
    Signed-off-by: Mattias Andrée <maand...@kth.se>

diff --git a/pwdx.c b/pwdx.c
index 57adc72..b169d75 100644
--- a/pwdx.c
+++ b/pwdx.c
@@ -31,7 +31,7 @@ main(int argc, char *argv[])
 
        for (; argc > 0; argc--, argv++) {
                n = snprintf(path, sizeof(path), "/proc/%s/cwd", *argv);
-               if (n < 0 || n > sizeof(path)) {
+               if (n < 0 || n >= sizeof(path)) {
                        errno = ESRCH;
                } else {
                        n = readlink(path, target, sizeof(target) - 1);