93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
/*
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* Copyright (c) 2022 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* tix-vars.c
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* Evaluate variables in port files.
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*/
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <assert.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <libgen.h>
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#include <signal.h>
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#include <stdarg.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <unistd.h>
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#include "util.h"
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int main(int argc, char* argv[])
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{
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const char* def = NULL;
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bool test = false;
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int opt;
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while ( (opt = getopt(argc, argv, "d:t")) != -1 )
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{
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switch ( opt )
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{
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case 'd': def = optarg; break;
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case 't': test = true; break;
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default: return 1;
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}
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}
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if ( optind == argc )
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errx(2, "expected port file");
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const char* path = argv[optind++];
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string_array_t sa = string_array_make();
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int status = !strcmp(path, "-") ?
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variables_append_file(&sa, stdin) :
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variables_append_file_path(&sa, path);
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if ( status == -1 )
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err(2, "%s", path);
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else if ( status == -2 )
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errx(2, "%s: Syntax error", path);
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if ( optind == argc )
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{
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if ( test )
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return 0;
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for ( size_t i = 0; i < sa.length; i++ )
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if ( puts(sa.strings[i]) < 0 )
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err(2, "stdout");
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}
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else for ( int i = optind; i < argc; i++ )
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{
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const char* variable = argv[i];
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const char* value = dictionary_get_def(&sa, variable, def);
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if ( !value && test )
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exit(1);
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else if ( !value )
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errx(1, "%s: Variable is unset: %s", path, variable);
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if ( !test && puts(value) < 0 )
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err(2, "stdout");
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}
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if ( ferror(stdout) || fflush(stdout) == EOF )
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err(2, "stdout");
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return 0;
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}
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