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61 lines
1.1 KiB
61 lines
1.1 KiB
6 years ago
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <err.h>
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void rm(char *fn);
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void dirrm(char *dir)
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{
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DIR *d = opendir(dir);
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if (!d)
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err(-1, "opendir");
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if (chdir(dir) == -1)
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err(-1, "chdir");
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struct dirent des, *de;
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while (1) {
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int ret = readdir_r(d, &des, &de);
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if (ret)
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errx(-1, "readdir: %s", strerror(ret));
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if (!de)
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break;
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if (strncmp(de->d_name, ".", 2) == 0 ||
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strncmp(de->d_name, "..", 3) == 0)
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continue;
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rm(de->d_name);
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}
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if (chdir("..") == -1)
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err(-1, "chdir");
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if (rmdir(dir) == -1)
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err(-1, "rmdir");
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}
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void rm(char *fn)
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{
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struct stat st;
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if (stat(fn, &st) == -1)
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err(-1, "stat");
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if (S_ISREG(st.st_mode) || S_ISSOCK(st.st_mode) ||
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S_ISDEV(st.st_mode)) {
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if (unlink(fn) == -1)
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err(-1, "unlink");
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return;
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} else if (S_ISDIR(st.st_mode)) {
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dirrm(fn);
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return;
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}
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errx(-1, "weird file type %ld", st.st_mode & S_IFMT);
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}
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int main(int argc, char **argv)
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{
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if (argc != 2) {
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fprintf(stderr, "usage: %s <non-empty dir to remove>\n",
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__progname);
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exit(-1);
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}
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char *fn = argv[1];
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rm(fn);
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return 0;
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}
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