diff options
Diffstat (limited to 'stest.c')
| -rw-r--r-- | stest.c | 85 |
1 files changed, 85 insertions, 0 deletions
@@ -0,0 +1,85 @@ +/* See LICENSE file for copyright and license details. */ +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/stat.h> + +#define OPER(x) (oper[(x)-'a']) + +static bool test(const char *); + +static bool quiet = false; +static bool oper[26]; +static struct stat old, new; + +int +main(int argc, char *argv[]) { + char buf[BUFSIZ], *p; + bool match = false; + int opt; + + while((opt = getopt(argc, argv, "C:bcdefghn:o:pqrsuwx")) != -1) + switch(opt) { + case 'C': /* tests relative to directory */ + if(chdir(optarg) == -1) { + perror(optarg); + exit(2); + } + break; + case 'n': /* newer than file */ + case 'o': /* older than file */ + if(!(OPER(opt) = stat(optarg, (opt == 'n' ? &new : &old)) == 0)) + perror(optarg); + break; + case 'q': /* quiet (no output, just status) */ + quiet = true; + break; + default: /* miscellaneous operators */ + OPER(opt) = true; + break; + case '?': /* error: unknown flag */ + fprintf(stderr, "usage: %s [-bcdefghpqrsuwx] [-C dir] [-n file] [-o file] [file...]\n", argv[0]); + exit(2); + } + if(optind == argc) + while(fgets(buf, sizeof buf, stdin)) { + if(*(p = &buf[strlen(buf)-1]) == '\n') + *p = '\0'; + match |= test(buf); + } + else + while(optind < argc) + match |= test(argv[optind++]); + + return match ? 0 : 1; +} + +bool +test(const char *path) { + struct stat st; + + if((!OPER('b') || (stat(path, &st) == 0 && S_ISBLK(st.st_mode))) /* block special */ + && (!OPER('c') || (stat(path, &st) == 0 && S_ISCHR(st.st_mode))) /* character special */ + && (!OPER('d') || (stat(path, &st) == 0 && S_ISDIR(st.st_mode))) /* directory */ + && (!OPER('e') || (access(path, F_OK) == 0)) /* exists */ + && (!OPER('f') || (stat(path, &st) == 0 && S_ISREG(st.st_mode))) /* regular file */ + && (!OPER('g') || (stat(path, &st) == 0 && (st.st_mode & S_ISGID))) /* set-group-id flag */ + && (!OPER('h') || (lstat(path, &st) == 0 && S_ISLNK(st.st_mode))) /* symbolic link */ + && (!OPER('n') || (stat(path, &st) == 0 && st.st_mtime > new.st_mtime)) /* newer than file */ + && (!OPER('o') || (stat(path, &st) == 0 && st.st_mtime < old.st_mtime)) /* older than file */ + && (!OPER('p') || (stat(path, &st) == 0 && S_ISFIFO(st.st_mode))) /* named pipe */ + && (!OPER('r') || (access(path, R_OK) == 0)) /* readable */ + && (!OPER('s') || (stat(path, &st) == 0 && st.st_size > 0)) /* not empty */ + && (!OPER('u') || (stat(path, &st) == 0 && (st.st_mode & S_ISUID))) /* set-user-id flag */ + && (!OPER('w') || (access(path, W_OK) == 0)) /* writable */ + && (!OPER('x') || (access(path, X_OK) == 0))) { /* executable */ + if(quiet) + exit(0); + puts(path); + return true; + } + else + return false; +} |