89 lines
1.7 KiB
C
89 lines
1.7 KiB
C
#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include <dirent.h>
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#include <sys/stat.h>
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#include <unistd.h>
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int get_stat(const char *path, struct stat *stat_path) {
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if (lstat(path, stat_path)) {
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fprintf(stderr, "rm: unable to stat %s: %s\n", path, strerror(errno));
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return 1;
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}
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return 0;
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}
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char *make_path(const char *src, const char *dst) {
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size_t len = strlen(src) + strlen(dst) + 2;
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char *full_path = malloc(len + 1);
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if (full_path == NULL) {
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fprintf(stderr, "rm: malloc() returned NULL\n");
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return NULL;
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}
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snprintf(full_path, len, "%s/%s", src, dst);
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return full_path;
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}
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int rmtree(const char *path) {
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struct stat stat_path;
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if (get_stat(path, &stat_path))
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return 1;
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if (!S_ISDIR(stat_path.st_mode) || S_ISLNK(stat_path.st_mode)) {
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if (unlink(path) < 0) {
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fprintf(stderr, "rm: %s: is not directory\n", path);
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return 1;
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}
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return 0;
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}
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DIR *dir = opendir(path);
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if (dir == NULL) {
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fprintf(stderr, "rm: %s: Can`t open directory\n", path);
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return 1;
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}
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struct dirent *ep;
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while ((ep = readdir(dir)) != NULL) {
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if (!strcmp(ep->d_name, ".") || !strcmp(ep->d_name, ".."))
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continue;
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char *full_path = make_path(path, ep->d_name);
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if (full_path == NULL)
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continue;
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rmtree(full_path);
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free(full_path);
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}
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closedir(dir);
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if (rmdir(path) < 0)
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fprintf(stderr, "rm: %s: can`t remove a directory\n", path);
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return 0;
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}
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int main(const int argc, char **argv) {
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if (argc == 1 || !strcmp(argv[argc - 1], "--help")) {
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printf("rm [src1 src2...]\n");
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return 0;
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}
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int status = 0;
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for (int i = 1; i < argc; i++) {
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if (argv[i][0] == '-')
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continue;
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int status = rmtree(argv[i]);
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if (status != 0)
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status = 1;
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}
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return status;
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}
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