fbt/sbase
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ls: Always leave room for the NULL byte in the link target

Browse Source 
Otherwise, if the length of the link target is the same as BUFSIZ, we
will try to write past the end of buf.
This commit is contained in:
Michael Forney 2014-12-08 02:19:34 +00:00 committed by sin
parent 46ea55a258
commit 573ef00c91
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
ls.c
View File

@ -300,7 +300,7 @@ output(Entry *ent)
printf("%10lu ", (unsigned long)ent->size);
printf("%s %s%s", buf, ent->name, indicator(ent->mode));
if (S_ISLNK(ent->mode)) {
if ((len = readlink(ent->name, buf, sizeof buf)) < 0)
if ((len = readlink(ent->name, buf, sizeof buf - 1)) < 0)
eprintf("readlink %s:", ent->name);
buf[len] = '\0';
printf(" -> %s%s", buf, indicator(ent->tmode));