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/*
* UNG's Not GNU
*
* Copyright (c) 2011-2017, Jakob Kaivo <jkk@ung.org>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include "file.h"
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
int file(const char *path, int domagic)
{
printf("%s:", path);
struct stat st;
if (lstat(path, &st) == -1) {
printf(" cannot open (%s)\n", strerror(errno));
return 1;
}
if (S_ISLNK(st.st_mode)) {
char link[st.st_size];
readlink(path, link, st.st_size);
printf(" symbolink link to %s\n", link);
return 0;
//stat(path, &st);
}
if (domagic && S_ISREG(st.st_mode)) {
if (st.st_size == 0) {
printf(" empty");
}
if (access(path, X_OK) == 0) {
printf(" executable");
}
}
if (S_ISDIR(st.st_mode)) {
printf(" directory");
} else if (S_ISFIFO(st.st_mode)) {
printf(" fifo");
} else if (S_ISSOCK(st.st_mode)) {
printf(" socket");
} else if (S_ISBLK(st.st_mode)) {
printf(" block special");
} else if (S_ISCHR(st.st_mode)) {
printf(" character special");
} else {
if (domagic) {
idmagic(path);
} else {
printf(" regular file");
}
}
putchar('\n');
return 0;
}
int main(int argc, char *argv[])
{
enum { NONE = 0, TODO, DONE } magic = TODO;
int c;
while ((c = getopt(argc, argv, "dhM:m:i")) != -1) {
switch (c) {
case 'd': /** include system default magic **/
readmagic(NULL);
magic = DONE;
break;
case 'h': /** identify symbolic links **/
break;
case 'i': /** perform no magic **/
magic = NONE;
break;
case 'M': /** specify magic file **/
readmagic(optarg);
magic = DONE;
break;
case 'm': /** specify magic file **/
readmagic(optarg);
magic = DONE;
break;
default:
return 1;
}
}
if (magic == TODO) {
readmagic(NULL);
}
if (optind >= argc) {
fprintf(stderr, "file: At least one file required\n");
return 1;
}
int r = 0;
while (optind < argc) {
r |= file(argv[optind++], magic);
}
return r;
}
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