83 lines
1.6 KiB
C
83 lines
1.6 KiB
C
/* vim: tabstop=4 shiftwidth=4 noexpandtab
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* This file is part of ToaruOS and is released under the terms
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* of the NCSA / University of Illinois License - see LICENSE.md
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* Copyright (C) 2013-2018 K. Lange
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*
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* rm - Unlink files
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*
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* TODO: Support recursive, directory removal, etc.
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*/
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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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#include <errno.h>
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#include <dirent.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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static int recursive = 0;
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static int rm_thing(char * tmp);
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static int rm_directory(char * source) {
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DIR * dirp = opendir(source);
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if (dirp == NULL) {
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fprintf(stderr, "could not open %s\n", source);
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return 1;
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}
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struct dirent * ent = readdir(dirp);
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while (ent != NULL) {
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if (!strcmp(ent->d_name,".") || !strcmp(ent->d_name,"..")) {
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ent = readdir(dirp);
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continue;
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}
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char tmp[strlen(source)+strlen(ent->d_name)+2];
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sprintf(tmp, "%s/%s", source, ent->d_name);
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int status = rm_thing(tmp);
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if (status) return status;
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ent = readdir(dirp);
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}
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closedir(dirp);
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return unlink(source);
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}
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static int rm_thing(char * tmp) {
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struct stat statbuf;
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lstat(tmp,&statbuf);
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if (S_ISDIR(statbuf.st_mode)) {
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if (!recursive) {
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fprintf(stderr, "rm: %s: is a directory\n", tmp);
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return 1;
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}
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return rm_directory(tmp);
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} else {
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return unlink(tmp);
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}
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}
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int main(int argc, char * argv[]) {
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int opt;
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while ((opt = getopt(argc, argv, "r")) != -1) {
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switch (opt) {
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case 'r':
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recursive = 1;
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break;
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default:
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fprintf(stderr, "rm: unrecognized option '%c'\n", opt);
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break;
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}
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}
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int ret = 0;
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for (int i = optind; i < argc; ++i) {
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ret |= rm_thing(argv[i]);
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}
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return ret;
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}
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