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t_pgrep.sh revision 1.2.4.2 
      1 # $NetBSD: t_pgrep.sh,v 1.2.4.2 2017/02/21 21:22:46 kre Exp $
      2 #
      3 # Copyright (c) 2016 The NetBSD Foundation, Inc.
      4 # All rights reserved.
      5 #
      6 # Redistribution and use in source and binary forms, with or without
      7 # modification, are permitted provided that the following conditions
      8 # are met:
      9 # 1. Redistributions of source code must retain the above copyright
     10 #    notice, this list of conditions and the following disclaimer.
     11 # 2. Redistributions in binary form must reproduce the above copyright
     12 #    notice, this list of conditions and the following disclaimer in the
     13 #    documentation and/or other materials provided with the distribution.
     14 #
     15 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     16 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     17 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     18 # PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     19 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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     22 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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     24 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     25 # POSSIBILITY OF SUCH DAMAGE.
     26 #
     27 
     28 atf_test_case pr50934
     29 basic_shift_test_head() {
     30 	atf_set "descr" "Test fix for PR bin/50934 (null argv[0])"
     31 }
     32 pr50934_body() {
     33 	atf_require_prog pgrep
     34 	atf_require_prog cc
     35 
     36 	cat > t.c <<'!'
     37 #include <stdlib.h>
     38 #include <unistd.h>
     39 
     40 int
     41 main(int argc, char **argv)
     42 {
     43 	sleep(2);
     44 	argv[0] = 0;
     45 	pause();
     46 	exit(0);
     47 }
     48 !
     49 
     50 	cc -o t0123456789abcdefg-beef t.c || atf_fail "t.c compile failed"
     51 
     52 	./t0123456789abcdefg-beef &
     53 	PID=$!
     54 
     55 	pgrep -l t0123456 >OUT	; # should find the process
     56 	pgrep -l beef >>OUT	; # should find the process
     57 
     58 	sleep 5			; # allow time for sleep in t.c and argv[0]=0
     59 
     60 	pgrep -l t0123456 >>OUT	; # should find the process
     61 	pgrep -l beef >>OUT	; # should find nothing
     62 
     63 	kill -9 $PID
     64 	cat OUT	; # just for the log
     65 
     66 	# note that pgrep -l only ever prints p_comm which is of limited sicze
     67 	atf_check_equal "$(cat OUT)" \
     68 	   "$PID t0123456789abcde $PID t0123456789abcde $PID t0123456789abcde"
     69 
     70 	return 0
     71 }
     72 
     73 atf_init_test_cases() {
     74 	atf_add_test_case pr50934
     75 }
     76