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Fix resource leak and dereference after NULL.

Browse source 
process.c:
Protect access against NULL.

main.c:
Prevent outfile overwrite resource leak.

CID:	271181
CID:	1006930

Obtained from:	NetBSD
MFC after:	3 days
This commit is contained in:
Pedro F. Giffuni 2015-01-27 18:58:24 +00:00
parent c7d7e597b4
commit fc04dce059
2 changed files with 3 additions and 1 deletions
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2
usr.bin/sed/main.c
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@ -411,6 +411,8 @@ mf_fgets(SPACE *sp, enum e_spflag spflag)
unlink(tmpfname);
if ((outfile = fopen(tmpfname, "w")) == NULL)
err(1, "%s", fname);
if (outfile != NULL && outfile != stdout)
fclose(outfile);
fchown(fileno(outfile), sb.st_uid, sb.st_gid);
fchmod(fileno(outfile), sb.st_mode & ALLPERMS);
outfname = tmpfname;

2
usr.bin/sed/process.c
View file

@ -324,7 +324,7 @@ 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