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109 lines
3.2 KiB
109 lines
3.2 KiB
/* See LICENSE file for copyright and license details. */ |
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#include <sys/stat.h> |
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#include <dirent.h> |
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#include <limits.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include "arg.h" |
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char *argv0; |
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#define FLAG(x) (flag[(x)-'a']) |
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static void test(const char *, const char *); |
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static void usage(void); |
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static int match = 0; |
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static int flag[26]; |
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static struct stat old, new; |
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static void |
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test(const char *path, const char *name) |
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{ |
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struct stat st, ln; |
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if ((!stat(path, &st) && (FLAG('a') || name[0] != '.') /* hidden files */ |
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&& (!FLAG('b') || S_ISBLK(st.st_mode)) /* block special */ |
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&& (!FLAG('c') || S_ISCHR(st.st_mode)) /* character special */ |
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&& (!FLAG('d') || S_ISDIR(st.st_mode)) /* directory */ |
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&& (!FLAG('e') || access(path, F_OK) == 0) /* exists */ |
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&& (!FLAG('f') || S_ISREG(st.st_mode)) /* regular file */ |
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&& (!FLAG('g') || st.st_mode & S_ISGID) /* set-group-id flag */ |
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&& (!FLAG('h') || (!lstat(path, &ln) && S_ISLNK(ln.st_mode))) /* symbolic link */ |
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&& (!FLAG('n') || st.st_mtime > new.st_mtime) /* newer than file */ |
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&& (!FLAG('o') || st.st_mtime < old.st_mtime) /* older than file */ |
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&& (!FLAG('p') || S_ISFIFO(st.st_mode)) /* named pipe */ |
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&& (!FLAG('r') || access(path, R_OK) == 0) /* readable */ |
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&& (!FLAG('s') || st.st_size > 0) /* not empty */ |
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&& (!FLAG('u') || st.st_mode & S_ISUID) /* set-user-id flag */ |
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&& (!FLAG('w') || access(path, W_OK) == 0) /* writable */ |
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&& (!FLAG('x') || access(path, X_OK) == 0)) != FLAG('v')) { /* executable */ |
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if (FLAG('q')) |
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exit(0); |
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match = 1; |
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puts(name); |
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} |
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} |
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static void |
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usage(void) |
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{ |
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fprintf(stderr, "usage: %s [-abcdefghlpqrsuvwx] " |
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"[-n file] [-o file] [file...]\n", argv0); |
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exit(2); /* like test(1) return > 1 on error */ |
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} |
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int |
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main(int argc, char *argv[]) |
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{ |
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struct dirent *d; |
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char path[PATH_MAX], *line = NULL, *file; |
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size_t linesiz = 0; |
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ssize_t n; |
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DIR *dir; |
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int r; |
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ARGBEGIN { |
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case 'n': /* newer than file */ |
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case 'o': /* older than file */ |
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file = EARGF(usage()); |
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if (!(FLAG(ARGC()) = !stat(file, (ARGC() == 'n' ? &new : &old)))) |
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perror(file); |
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break; |
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default: |
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/* miscellaneous operators */ |
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if (strchr("abcdefghlpqrsuvwx", ARGC())) |
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FLAG(ARGC()) = 1; |
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else |
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usage(); /* unknown flag */ |
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} ARGEND; |
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if (!argc) { |
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/* read list from stdin */ |
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while ((n = getline(&line, &linesiz, stdin)) > 0) { |
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if (n && line[n - 1] == '\n') |
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line[n - 1] = '\0'; |
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test(line, line); |
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} |
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free(line); |
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} else { |
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for (; argc; argc--, argv++) { |
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if (FLAG('l') && (dir = opendir(*argv))) { |
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/* test directory contents */ |
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while ((d = readdir(dir))) { |
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r = snprintf(path, sizeof path, "%s/%s", |
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*argv, d->d_name); |
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if (r >= 0 && (size_t)r < sizeof path) |
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test(path, d->d_name); |
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} |
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closedir(dir); |
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} else { |
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test(*argv, *argv); |
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} |
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} |
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} |
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return match ? 0 : 1; |
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}
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