From 47f8558eee4caa30078daaa669f37d7cc77163fd Mon Sep 17 00:00:00 2001 From: Bernhard Walle Date: Thu, 28 Feb 2013 12:42:38 +0100 Subject: [PATCH] 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 Signed-off-by: Denys Vlasenko --- procps/pgrep.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/procps/pgrep.c b/procps/pgrep.c index dc7ffff48..7616027b7 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; -- 2.25.1