Author: pfg
Date: Fri Jan 30 14:37:59 2015
New Revision: 277934
URL: https://svnweb.freebsd.org/changeset/base/277934
Log:
MFC r277802, r277811:
sed: Fix resource leak and dereference after NULL.
process.c:
Protect access against NULL.
main.c:
Prevent outfile overwrite resource leak.
CID: 271181
CID: 1006930
Obtained from: NetBSD
Modified:
stable/9/usr.bin/sed/main.c
stable/9/usr.bin/sed/process.c
Directory Properties:
stable/9/usr.bin/sed/ (props changed)
Modified: stable/9/usr.bin/sed/main.c
==============================================================================
--- stable/9/usr.bin/sed/main.c Fri Jan 30 14:36:02 2015 (r277933)
+++ stable/9/usr.bin/sed/main.c Fri Jan 30 14:37:59 2015 (r277934)
@@ -404,6 +404,8 @@ mf_fgets(SPACE *sp, enum e_spflag spflag
if (len >= sizeof(tmpfname))
errx(1, "%s: name too long", fname);
unlink(tmpfname);
+ if (outfile != NULL && outfile != stdout)
+ fclose(outfile);
if ((outfile = fopen(tmpfname, "w")) == NULL)
err(1, "%s", fname);
fchown(fileno(outfile), sb.st_uid, sb.st_gid);
Modified: stable/9/usr.bin/sed/process.c
==============================================================================
--- stable/9/usr.bin/sed/process.c Fri Jan 30 14:36:02 2015
(r277933)
+++ stable/9/usr.bin/sed/process.c Fri Jan 30 14:37:59 2015
(r277934)
@@ -314,7 +314,7 @@ applies(struct s_command *cp)
} else
r = 1;
}
- } else if (MATCH(cp->a1)) {
+ } else if (cp->a1 && MATCH(cp->a1)) {
/*
* If the second address is a number less than or
* equal to the line number first selected, only
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