49 lines
1.6 KiB
C
49 lines
1.6 KiB
C
/*
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* Copyright (c) 2024 DTB <trinity@trinity.moe>
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*
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* This program is free software: you can redistribute it and/or modify it under
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* the terms of the GNU Affero General Public License as published by the Free
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* Software Foundation, either version 3 of the License, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see https://www.gnu.org/licenses/.
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*/
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#include <errno.h> /* EACCESS, ELOOP, ENAMETOOLONG, ENOENT, ENOTDIR, errno */
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#include <stdio.h> /* fprintf(3), stderr */
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#include <string.h> /* strerror(3) */
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#include <sysexits.h> /* EX_OSERR, EX_NOPERM, EX_NOINPUT, EX_UNAVAILABLE,
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* EX_USAGE */
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#include <unistd.h> /* chdir(2) */
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char *program_name = "pschdir";
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int main(int argc, char *argv[]){
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if (argc < 3) {
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fprintf(stderr, "Usage: %s directory command [argument...]\n",
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argv[0] == NULL ? program_name : argv[0]);
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return EX_USAGE;
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}
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if(chdir(argv[1]) != 0){
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fprintf(stderr, "%s: %s: %s\n", argv[0], argv[1], strerror(errno));
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switch (errno) {
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case ENAMETOOLONG: return EX_OSERR;
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case EACCES: return EX_NOPERM;
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case ENOENT:
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case ENOTDIR: return EX_NOINPUT;
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default: return EX_UNAVAILABLE;
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}
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}
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execvp(argv[2], &argv[2]);
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}
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