1 #!/bin/sh 2 # 3 # Check strace options syntax. 4 # 5 # Copyright (c) 2016 Dmitry V. Levin <ldv (at] altlinux.org> 6 # All rights reserved. 7 # 8 # Redistribution and use in source and binary forms, with or without 9 # modification, are permitted provided that the following conditions 10 # are met: 11 # 1. Redistributions of source code must retain the above copyright 12 # notice, this list of conditions and the following disclaimer. 13 # 2. Redistributions in binary form must reproduce the above copyright 14 # notice, this list of conditions and the following disclaimer in the 15 # documentation and/or other materials provided with the distribution. 16 # 3. The name of the author may not be used to endorse or promote products 17 # derived from this software without specific prior written permission. 18 # 19 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30 . "${srcdir=.}/init.sh" 31 32 check_exit_status_and_stderr() 33 { 34 $STRACE "$@" 2> "$LOG" && 35 dump_log_and_fail_with \ 36 "strace $* failed to handle the error properly" 37 match_diff "$LOG" "$EXP" || 38 dump_log_and_fail_with \ 39 "strace $* failed to print expected diagnostics" 40 } 41 42 strace_exp="${STRACE##* }" 43 44 check_e() 45 { 46 local pattern="$1"; shift 47 cat > "$EXP" << __EOF__ 48 $strace_exp: $pattern 49 __EOF__ 50 check_exit_status_and_stderr "$@" 51 } 52 53 check_h() 54 { 55 local pattern="$1"; shift 56 cat > "$EXP" << __EOF__ 57 $strace_exp: $pattern 58 Try '$strace_exp -h' for more information. 59 __EOF__ 60 check_exit_status_and_stderr "$@" 61 } 62 63 check_e "Invalid process id: '0'" -p 0 64 check_e "Invalid process id: '-42'" -p -42 65 check_e "Invalid process id: '$$.'" -p $$. 66 check_e "Invalid process id: 'a'" -p 1,a 67 check_e "Syscall 'chdir' for -b isn't supported" -b chdir 68 check_e "Syscall 'chdir' for -b isn't supported" -b execve -b chdir 69 70 check_e "invalid system call '-1'" -e-1 71 check_e "invalid system call '-2'" -e -2 72 check_e "invalid system call '-3'" -etrace=-3 73 check_e "invalid system call '-4'" -e trace=-4 74 check_e "invalid system call '-5'" -e trace=1,-5 75 check_e "invalid system call '2147483647'" -e 2147483647 76 check_e "invalid system call '2147483648'" -e 2147483648 77 check_e "invalid system call '4294967295'" -e 4294967295 78 check_e "invalid system call '4294967296'" -e 4294967296 79 80 check_e "invalid descriptor '-1'" -eread=-1 81 check_e "invalid descriptor '-42'" -ewrite=-42 82 check_e "invalid descriptor '2147483648'" -eread=2147483648 83 check_e "invalid descriptor '4294967296'" -ewrite=4294967296 84 check_e "invalid descriptor 'foo'" -eread=foo 85 check_e "invalid descriptor ''" -ewrite= 86 check_e "invalid descriptor ','" -eread=, 87 check_e "invalid descriptor '!'" -ewrite='!' 88 check_e "invalid descriptor '!'" -eread='0,!' 89 check_e "invalid descriptor '!,'" -ewrite='!,' 90 91 check_h 'must have PROG [ARGS] or -p PID' 92 check_h 'PROG [ARGS] must be specified with -D' -D -p $$ 93 check_h '-c and -C are mutually exclusive' -c -C true 94 check_h '-c and -C are mutually exclusive' -C -c true 95 check_h '(-c or -C) and -ff are mutually exclusive' -c -ff true 96 check_h '(-c or -C) and -ff are mutually exclusive' -C -ff true 97 check_h '-w must be given with (-c or -C)' -w true 98 check_h 'piping the output and -ff are mutually exclusive' -o '|' -ff true 99 check_h 'piping the output and -ff are mutually exclusive' -o '!' -ff true 100 check_h "invalid -a argument: '-42'" -a -42 101 check_h "invalid -O argument: '-42'" -O -42 102 check_h "invalid -s argument: '-42'" -s -42 103 check_h "invalid -I argument: '5'" -I 5 104 105 if [ -n "${UID-}" ]; then 106 if [ "${UID-}" = 0 ]; then 107 umsg="Cannot find user ':nosuchuser:'" 108 else 109 umsg='You must be root to use the -u option' 110 fi 111 112 check_e "$umsg" -u :nosuchuser: true 113 114 for c in i r t T y; do 115 check_e "-$c has no effect with -c 116 $strace_exp: $umsg" -u :nosuchuser: -c -$c true 117 done 118 check_e "-i has no effect with -c 119 $strace_exp: -r has no effect with -c 120 $strace_exp: -t has no effect with -c 121 $strace_exp: -T has no effect with -c 122 $strace_exp: -y has no effect with -c 123 $strace_exp: $umsg" -u :nosuchuser: -cirtTy true 124 125 check_e "-tt has no effect with -r 126 $strace_exp: $umsg" -u :nosuchuser: -r -tt true 127 fi 128 129 args='-p 2147483647' 130 $STRACE $args 2> "$LOG" && 131 dump_log_and_fail_with \ 132 "strace $args failed to handle the error properly" 133 134 for cmd in PTRACE_SEIZE PTRACE_ATTACH; do 135 cat > "$EXP" << __EOF__ 136 $strace_exp: attach: ptrace($cmd, 2147483647): No such process 137 __EOF__ 138 diff -- "$EXP" "$LOG" || 139 continue 140 args= 141 break 142 done 143 144 [ -z "$args" ] || 145 dump_log_and_fail_with \ 146 "strace $args failed to print expected diagnostics" 147 148 rm -f "$EXP" 149
