#!/bin/sh
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#
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# Check strace options syntax.
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#
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# Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
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# Copyright (c) 2016-2018 The strace developers.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. The name of the author may not be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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. "${srcdir=.}/syntax.sh"
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check_e "Invalid process id: '0'" -p 0
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check_e "Invalid process id: '-42'" -p -42
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check_e "Invalid process id: '$$.'" -p $$.
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check_e "Invalid process id: 'a'" -p 1,a
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check_e "Syscall 'chdir' for -b isn't supported" -b chdir
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check_e "Syscall 'chdir' for -b isn't supported" -b execve -b chdir
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check_e_using_grep 'exec: File *name too long' "$(printf '%4096s' ' ')"
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ff_name="$(printf '%4084s' ' ')"
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check_e_using_grep "$ff_name: File *name too long" -ff -o "$ff_name" true
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check_h 'must have PROG [ARGS] or -p PID'
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check_h 'PROG [ARGS] must be specified with -D' -D -p $$
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check_h '-c and -C are mutually exclusive' -c -C true
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check_h '-c and -C are mutually exclusive' -C -c true
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check_h '(-c or -C) and -ff are mutually exclusive' -c -ff true
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check_h '(-c or -C) and -ff are mutually exclusive' -C -ff true
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check_h '-w must be given with (-c or -C)' -w true
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check_h 'piping the output and -ff are mutually exclusive' -o '|' -ff true
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check_h 'piping the output and -ff are mutually exclusive' -o '!' -ff true
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check_h "invalid -a argument: '-42'" -a -42
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check_h "invalid -O argument: '-42'" -O -42
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check_h "invalid -s argument: '-42'" -s -42
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check_h "invalid -s argument: '1073741824'" -s 1073741824
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check_h "invalid -I argument: '5'" -I 5
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check_h "invalid -X argument: 'test'" -Xtest
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check_h "invalid -X argument: 'a'" -Xa
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check_h "invalid -X argument: 'abbreviated'" -X abbreviated
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check_h "incorrect personality designator '' in qualification 'getcwd@'" -e trace=getcwd@
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check_h "incorrect personality designator '42' in qualification 'getcwd@42'" -e trace=getcwd@42
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check_h "incorrect personality designator '42' in qualification 'getcwd@42'" -e trace=gettid,getcwd@42
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check_h "incorrect personality designator '42' in qualification '23@42'" -e trace=23@42,123
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check_e "invalid system call '/getcwd@ohmy'" -e trace=/getcwd@ohmy
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check_e "invalid -e kvm= argument: 'chdir'" -e kvm=chdir
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case "$STRACE_NATIVE_ARCH" in
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x86_64)
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check_h "must have PROG [ARGS] or -p PID" -e trace=getcwd@64
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check_h "must have PROG [ARGS] or -p PID" -e trace=getcwd@32
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check_h "must have PROG [ARGS] or -p PID" -e trace=getcwd@x32
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;;
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x32)
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check_h "incorrect personality designator '64' in qualification 'getcwd@64'" -e trace=getcwd@64
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check_h "must have PROG [ARGS] or -p PID" -e trace=getcwd@32
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check_h "must have PROG [ARGS] or -p PID" -e trace=getcwd@x32
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;;
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aarch64|powerpc64|riscv|s390x|sparc64|tile)
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check_h "must have PROG [ARGS] or -p PID" -e trace=getcwd@64
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check_h "must have PROG [ARGS] or -p PID" -e trace=getcwd@32
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check_h "incorrect personality designator 'x32' in qualification 'getcwd@x32'" -e trace=getcwd@x32
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;;
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*)
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pers="$((SIZEOF_LONG * 8))"
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inv_pers="$((96 - pers))"
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check_h "must have PROG [ARGS] or -p PID" -e trace=getcwd@"$pers"
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check_h "incorrect personality designator '$inv_pers' in qualification 'getcwd@$inv_pers'" -e trace=getcwd@"$inv_pers"
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check_h "incorrect personality designator 'x32' in qualification 'getcwd@x32'" -e trace=getcwd@x32
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esac
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../zeroargc "$STRACE_EXE" /bin/true 2> "$LOG" &&
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dump_log_and_fail_with \
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'zeroargc strace failed to handle the error properly'
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cat > "$EXP" << __EOF__
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$STRACE_EXE: must have PROG [ARGS] or -p PID
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Try '$STRACE_EXE -h' for more information.
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__EOF__
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diff -u -- "$EXP" "$LOG" > /dev/null || {
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cat > "$EXP" <<- '__EOF__'
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strace: must have PROG [ARGS] or -p PID
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Try 'strace -h' for more information.
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__EOF__
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match_diff "$LOG" "$EXP" \
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"zeroargc $STRACE $args output mismatch"
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}
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uid="${UID:-`id -u`}"
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if [ "$uid" -ge 0 ]; then
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if [ "$uid" -eq 0 ]; then
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umsg="Cannot find user ':nosuchuser:'"
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else
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umsg='You must be root to use the -u option'
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fi
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check_e "$umsg" -u :nosuchuser: true
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for c in i r t T y; do
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check_e "-$c has no effect with -c
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$STRACE_EXE: $umsg" -u :nosuchuser: -c -$c true
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done
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check_e "-i has no effect with -c
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$STRACE_EXE: -r has no effect with -c
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$STRACE_EXE: -t has no effect with -c
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$STRACE_EXE: -T has no effect with -c
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$STRACE_EXE: -y has no effect with -c
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$STRACE_EXE: $umsg" -u :nosuchuser: -cirtTy true
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fi
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args='-p 2147483647'
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$STRACE $args 2> "$LOG" &&
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dump_log_and_fail_with \
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"strace $args failed to handle the error properly"
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for cmd in PTRACE_SEIZE PTRACE_ATTACH; do
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cat > "$EXP" << __EOF__
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$STRACE_EXE: attach: ptrace($cmd, 2147483647): No such process
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__EOF__
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diff -- "$EXP" "$LOG" ||
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continue
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args=
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break
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done
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[ -z "$args" ] ||
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dump_log_and_fail_with \
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"strace $args failed to print expected diagnostics"
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