mirror of
https://github.com/RGBCube/serenity
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90 lines
3.1 KiB
C++
90 lines
3.1 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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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 are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibCore/ArgsParser.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <syscall.h>
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#define SC_NARG 4
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FlatPtr arg[SC_NARG];
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char buf[BUFSIZ];
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static FlatPtr parse(const char* s);
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int main(int argc, char** argv)
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{
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bool output_buffer = false;
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bool list_syscalls = false;
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Vector<const char*> arguments;
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Core::ArgsParser args_parser;
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args_parser.add_option(output_buffer, "Output the contents of the buffer (beware of stray zero bytes!)", "output-buffer", 'o');
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args_parser.add_option(list_syscalls, "List all existing syscalls", "list-syscalls", 'l');
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args_parser.add_positional_argument(arguments, "Syscall arguments (can be strings, 'buf' for the output buffer, or numbers like 1234 or 0xffffffff)", "syscall-arguments");
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args_parser.parse(argc, argv);
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for (size_t i = 0; i < arguments.size(); i++) {
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arg[i] = parse(arguments[i]);
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}
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for (int sc = 0; sc < Syscall::Function::__Count; ++sc) {
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if (strcmp(Syscall::to_string((Syscall::Function)sc), (char*)arg[0]) == 0) {
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int rc = syscall(sc, arg[1], arg[2], arg[3]);
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if (rc == -1) {
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perror("syscall");
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} else {
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if (output_buffer)
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fwrite(buf, 1, sizeof(buf), stdout);
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}
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fprintf(stderr, "Syscall return: %d\n", rc);
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return 0;
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}
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}
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fprintf(stderr, "Invalid syscall entry %s\n", (char*)arg[0]);
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return -1;
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}
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FlatPtr parse(const char* s)
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{
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char* t;
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FlatPtr l;
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if (strcmp(s, "buf") == 0) {
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return (FlatPtr)buf;
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}
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l = strtoul(s, &t, 0);
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if (t > s && *t == 0) {
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return l;
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}
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return (FlatPtr)s;
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}
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