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6b7ce19161
These instances were detected by searching for files that include stdlib.h, but don't match the regex: \\b(_abort|abort|abs|aligned_alloc|arc4random|arc4random_buf|arc4random_ uniform|atexit|atof|atoi|atol|atoll|bsearch|calloc|clearenv|div|div_t|ex it|_Exit|EXIT_FAILURE|EXIT_SUCCESS|free|getenv|getprogname|grantpt|labs| ldiv|ldiv_t|llabs|lldiv|lldiv_t|malloc|malloc_good_size|malloc_size|mble n|mbstowcs|mbtowc|mkdtemp|mkstemp|mkstemps|mktemp|posix_memalign|posix_o penpt|ptsname|ptsname_r|putenv|qsort|qsort_r|rand|RAND_MAX|random|reallo c|realpath|secure_getenv|serenity_dump_malloc_stats|serenity_setenv|sete nv|setprogname|srand|srandom|strtod|strtof|strtol|strtold|strtoll|strtou l|strtoull|system|unlockpt|unsetenv|wcstombs|wctomb)\\b (Without the linebreaks.) This regex is pessimistic, so there might be more files that don't actually use anything from the stdlib. In theory, one might use LibCPP to detect things like this automatically, but let's do this one step after another.
73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/DeprecatedString.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/ProcessStatisticsReader.h>
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#include <LibCore/System.h>
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#include <LibMain/Main.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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static ErrorOr<int> pid_of(DeprecatedString const& process_name, bool single_shot, bool omit_pid, pid_t pid)
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{
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bool displayed_at_least_one = false;
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auto all_processes = TRY(Core::ProcessStatisticsReader::get_all());
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for (auto& it : all_processes.processes) {
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if (it.name == process_name) {
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if (!omit_pid || it.pid != pid) {
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out(displayed_at_least_one ? " {}"sv : "{}"sv, it.pid);
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displayed_at_least_one = true;
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if (single_shot)
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break;
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}
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}
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}
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if (displayed_at_least_one)
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outln();
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return 0;
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}
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ErrorOr<int> serenity_main(Main::Arguments args)
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{
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TRY(Core::System::pledge("stdio rpath"));
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TRY(Core::System::unveil("/sys/kernel/processes", "r"));
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TRY(Core::System::unveil("/etc/passwd", "r"));
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TRY(Core::System::unveil(nullptr, nullptr));
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bool single_shot = false;
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char const* omit_pid_value = nullptr;
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char const* process_name = nullptr;
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Core::ArgsParser args_parser;
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args_parser.add_option(single_shot, "Only return one pid", nullptr, 's');
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args_parser.add_option(omit_pid_value, "Omit the given PID, or the parent process if the special value %PPID is passed", nullptr, 'o', "pid");
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args_parser.add_positional_argument(process_name, "Process name to search for", "process-name");
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args_parser.parse(args);
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pid_t pid_to_omit = 0;
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if (omit_pid_value) {
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if (!strcmp(omit_pid_value, "%PPID")) {
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pid_to_omit = getppid();
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} else {
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auto number = StringView { omit_pid_value, strlen(omit_pid_value) }.to_uint();
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if (!number.has_value()) {
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warnln("Invalid value for -o");
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args_parser.print_usage(stderr, args.argv[0]);
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return 1;
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}
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pid_to_omit = number.value();
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}
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}
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return pid_of(process_name, single_shot, omit_pid_value != nullptr, pid_to_omit);
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}
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