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authorBernhard Walle <bernhard@bwalle.de>2013-02-28 11:42:38 (GMT)
committer Denys Vlasenko <vda.linux@googlemail.com>2013-02-28 11:42:38 (GMT)
commit47f8558eee4caa30078daaa669f37d7cc77163fd (patch)
treee357192d977ca9c6dedf25d83badebff4e20dfb0
parented954b68552efb0c496f01fc9de28a4adf0f2404 (diff)
downloadbusybox-47f8558eee4caa30078daaa669f37d7cc77163fd.tar.gz
busybox-47f8558eee4caa30078daaa669f37d7cc77163fd.tar.bz2
pgrep: fix -x option
Because when -x is used (exact match), then we cannot compile the regular expression with REG_NOSUB. The manual page regcomp(3) states in section "Byte offsets": Unless REG_NOSUB was set for the compilation of the pattern buffer, it is possible to obtain substring match addressing information. The problem was detected on an ARM system with glibc 2.16. Signed-off-by: Bernhard Walle <bernhard@bwalle.de> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--procps/pgrep.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/procps/pgrep.c b/procps/pgrep.c
index dc7ffff..7616027 100644
--- a/procps/pgrep.c
+++ b/procps/pgrep.c
@@ -128,7 +128,7 @@ int pgrep_main(int argc UNUSED_PARAM, char **argv)
bb_show_usage();
if (argv[0])
- xregcomp(&re_buffer, argv[0], REG_EXTENDED | REG_NOSUB);
+ xregcomp(&re_buffer, argv[0], OPT_ANCHOR ? REG_EXTENDED : (REG_EXTENDED|REG_NOSUB);
matched_pid = 0;
cmd_last = NULL;