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syscall: Port to LibMain

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alexmajor 2022-01-24 21:02:39 -05:00 • committed by Brian Gianforcaro
parent 6deb032335
commit 61f2b7434f
2 changed files with 10 additions and 7 deletions
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1
Userland/Utilities/CMakeLists.txt
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@ -166,6 +166,7 @@ target_link_libraries(stat LibMain)
target_link_libraries(strace LibMain)
target_link_libraries(su LibCrypt LibMain)
target_link_libraries(sync LibMain)
target_link_libraries(syscall LibMain)
target_link_libraries(tac LibMain)
target_link_libraries(tail LibMain)
target_link_libraries(tar LibArchive LibCompress)

16
Userland/Utilities/syscall.cpp
View file

@ -1,5 +1,6 @@
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, Alex Major
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -9,6 +10,7 @@
#include <AK/Iterator.h>
#include <AK/Vector.h>
#include <LibCore/ArgsParser.h>
#include <LibMain/Main.h>
#include <errno_codes.h>
#include <stdio.h>
#include <stdlib.h>
@ -34,11 +36,11 @@ struct AK::Formatter<Syscall::Function> : Formatter<StringView> {
}
};
int main(int argc, char** argv)
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
bool output_buffer = false;
bool list_syscalls = false;
Vector<const char*> arguments;
Vector<const char*> syscall_arguments;
Core::ArgsParser args_parser;
args_parser.set_general_help(
@ -54,8 +56,8 @@ int main(int argc, char** argv)
"Full example: syscall -o realpath [ /usr/share/man/man2/getgid.md 1024 buf 1024 ]");
args_parser.add_option(list_syscalls, "List all existing syscalls, and exit", "list-syscalls", 'l');
args_parser.add_option(output_buffer, "Output the contents of the buffer (beware of stray zero bytes!)", "output-buffer", 'o');
args_parser.add_positional_argument(arguments, "Syscall arguments; see general help.", "syscall-arguments", Core::ArgsParser::Required::No);
args_parser.parse(argc, argv);
args_parser.add_positional_argument(syscall_arguments, "Syscall arguments; see general help.", "syscall-arguments", Core::ArgsParser::Required::No);
args_parser.parse(arguments);
if (list_syscalls) {
outln("syscall list:");
@ -65,12 +67,12 @@ int main(int argc, char** argv)
exit(0);
}
if (arguments.is_empty()) {
args_parser.print_usage(stderr, argv[0]);
if (syscall_arguments.is_empty()) {
args_parser.print_usage(stderr, arguments.argv[0]);
exit(1);
}
ArgIter iter = arguments.begin();
ArgIter iter = syscall_arguments.begin();
for (size_t i = 0; i < SC_NARG && !iter.is_end(); i++) {
arg[i] = parse_from(iter);
}