src - dontfiles

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Diffstat (limited to 'bin/man1/ptee.1')

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/* Copyright (C) 2019 C. McEnroe <june@causal.agency> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. * * Additional permission under GNU GPL version 3 section 7: * * If you modify this Program, or any covered work, by linking or * combining it with OpenSSL (or a modified version of that library), * containing parts covered by the terms of the OpenSSL License and the * original SSLeay license, the licensors of this Program grant you * additional permission to convey the resulting work. Corresponding * Source for a non-source form of such a combination shall include the * source code for the parts of OpenSSL used as well as that of the * covered work. */ #include <err.h> #include <getopt.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include "bounce.h" #define WS "\t " static const char *path; static FILE *file; static size_t num; static char *line; static size_t cap; static int clean(int opt) { if (file) fclose(file); free(line); line = NULL; cap = 0; return opt; } int getopt_config( int argc, char *const *argv, const char *optstring, const struct option *longopts, int *longindex ) { static int opt; for (;;) { if (!file) { if (optind == argc) return clean(-1); if (opt >= 0 && argv[optind][0] == '-') { opt = getopt_long(argc, argv, optstring, longopts, longindex); if (opt >= 0 || optind == argc) return clean(opt); } num = 0; path = argv[optind++]; file = configOpen(path, "r"); if (!file) return clean('?'); } for (;;) { ssize_t llen = getline(&line, &cap, file); if (ferror(file)) { warn("%s", path); return clean('?'); } if (llen <= 0) break; if (line[llen - 1] == '\n') line[llen - 1] = '\0'; num++; char *name = line + strspn(line, WS); size_t len = strcspn(name, WS "="); if (!name[0] || name[0] == '#') continue; const struct option *option; for (option = longopts; option->name; ++option) { if (strlen(option->name) != len) continue; if (!strncmp(option->name, name, len)) break; } if (!option->name) { warnx( "%s:%zu: unrecognized option `%.*s'", path, num, (int)len, name ); return clean('?'); } char *equal = &name[len] + strspn(&name[len], WS); if (*equal && *equal != '=') { warnx( "%s:%zu: option `%s' missing equals sign", path, num, option->name ); return clean('?'); } if (option->has_arg == no_argument && *equal) { warnx( "%s:%zu: option `%s' doesn't allow an argument", path, num, option->name ); return clean('?'); } if (option->has_arg == required_argument && !*equal) { warnx( "%s:%zu: option `%s' requires an argument", path, num, option->name ); return clean(':'); } optarg = NULL; if (*equal) { char *arg = &equal[1] + strspn(&equal[1], WS); optarg = strdup(arg); if (!optarg) { warn("getopt_config"); return clean('?'); } } if (longindex) *longindex = option - longopts; if (option->flag) { *option->flag = option->val; return 0; } else { return option->val; } } fclose(file); file = NULL; } }


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