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https://github.com/RGBCube/serenity
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59 lines
2.3 KiB
C
59 lines
2.3 KiB
C
/*
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* Copyright (c) 2020, Sergey Bugaev <bugaevc@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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#pragma once
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__BEGIN_DECLS
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// If opterr is set (the default), print error messages to stderr.
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extern int opterr;
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// On errors, optopt is set to the erroneous *character*.
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extern int optopt;
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// Index of the next argument to process upon a getopt*() call.
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extern int optind;
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// If set, reset the internal state kept by getopt*(). You may also want to set
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// optind to 1 in that case. Alternatively, setting optind to 0 is treated like
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// doing both of the above.
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extern int optreset;
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// After parsing an option that accept an argument, set to point to the argument
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// value.
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extern char* optarg;
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#define no_argument 0
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#define required_argument 1
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#define optional_argument 2
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struct option {
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const char* name;
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int has_arg;
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int* flag;
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int val;
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};
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int getopt(int argc, char** argv, const char* short_options);
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int getopt_long(int argc, char** argv, const char* short_options, const struct option* long_options, int* out_long_option_index);
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__END_DECLS
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