svn commit: r316542 - head/usr.bin/grep
Ed Maste
emaste at FreeBSD.org
Wed Apr 5 20:11:06 UTC 2017
Author: emaste
Date: Wed Apr 5 20:11:05 2017
New Revision: 316542
URL: https://svnweb.freebsd.org/changeset/base/316542
Log:
bsdgrep: Handle special case of single-byte NUL pattern
PR: 202022
Submitted by: Kyle Evans <kevans91 at ksu.edu>
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D10102
Modified:
head/usr.bin/grep/grep.c
Modified: head/usr.bin/grep/grep.c
==============================================================================
--- head/usr.bin/grep/grep.c Wed Apr 5 19:52:49 2017 (r316541)
+++ head/usr.bin/grep/grep.c Wed Apr 5 20:11:05 2017 (r316542)
@@ -314,8 +314,12 @@ read_patterns(const char *fn)
}
len = 0;
line = NULL;
- while ((rlen = getline(&line, &len, f)) != -1)
+ while ((rlen = getline(&line, &len, f)) != -1) {
+ if (line[0] == '\0')
+ continue;
add_pattern(line, line[0] == '\n' ? 0 : (size_t)rlen);
+ }
+
free(line);
if (ferror(f))
err(2, "%s", fn);
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