mirror of
https://github.com/freebsd/freebsd-src
synced 2024-09-06 17:18:32 +00:00
213 lines
5.5 KiB
C
213 lines
5.5 KiB
C
/*
|
|
* $NetBSD: ls.c,v 1.3 1997/06/13 13:48:47 drochner Exp $
|
|
*/
|
|
|
|
/*-
|
|
* Copyright (c) 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
* Copyright (c) 1996
|
|
* Matthias Drochner. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <ufs/ufs/dinode.h>
|
|
#include <ufs/ufs/dir.h>
|
|
|
|
#include <stand.h>
|
|
#include <string.h>
|
|
|
|
#include "bootstrap.h"
|
|
|
|
static char typestr[] = "?fc?d?b? ?l?s?w";
|
|
|
|
static int ls_getdir(char **pathp);
|
|
|
|
COMMAND_SET(ls, "ls", "list files", command_ls);
|
|
|
|
static int
|
|
command_ls(int argc, char *argv[])
|
|
{
|
|
int fd;
|
|
struct stat sb;
|
|
struct dirent *d;
|
|
char *buf, *path;
|
|
char lbuf[128]; /* one line */
|
|
int result, ch;
|
|
int verbose;
|
|
|
|
result = CMD_OK;
|
|
fd = -1;
|
|
verbose = 0;
|
|
optind = 1;
|
|
optreset = 1;
|
|
while ((ch = getopt(argc, argv, "l")) != -1) {
|
|
switch (ch) {
|
|
case 'l':
|
|
verbose = 1;
|
|
break;
|
|
case '?':
|
|
default:
|
|
/* getopt has already reported an error */
|
|
return (CMD_OK);
|
|
}
|
|
}
|
|
argv += (optind - 1);
|
|
argc -= (optind - 1);
|
|
|
|
if (argc < 2) {
|
|
path = "";
|
|
} else {
|
|
path = argv[1];
|
|
}
|
|
|
|
if (stat(path, &sb) == 0 && !S_ISDIR(sb.st_mode)) {
|
|
if (verbose) {
|
|
printf(" %c %8d %s\n",
|
|
typestr[sb.st_mode >> 12],
|
|
(int)sb.st_size, path);
|
|
} else {
|
|
printf(" %c %s\n",
|
|
typestr[sb.st_mode >> 12], path);
|
|
}
|
|
return (CMD_OK);
|
|
}
|
|
|
|
fd = ls_getdir(&path);
|
|
if (fd == -1) {
|
|
result = CMD_ERROR;
|
|
goto out;
|
|
}
|
|
pager_open();
|
|
pager_output(path);
|
|
pager_output("\n");
|
|
|
|
while ((d = readdirfd(fd)) != NULL) {
|
|
if (strcmp(d->d_name, ".") && strcmp(d->d_name, "..")) {
|
|
if (d->d_type == 0 || verbose) {
|
|
/* stat the file, if possible */
|
|
sb.st_size = 0;
|
|
sb.st_mode = 0;
|
|
buf = malloc(strlen(path) + strlen(d->d_name) + 2);
|
|
if (buf != NULL) {
|
|
sprintf(buf, "%s/%s", path, d->d_name);
|
|
/* ignore return, could be symlink, etc. */
|
|
if (stat(buf, &sb)) {
|
|
sb.st_size = 0;
|
|
sb.st_mode = 0;
|
|
}
|
|
free(buf);
|
|
}
|
|
}
|
|
if (verbose) {
|
|
snprintf(lbuf, sizeof(lbuf), " %c %8d %s\n",
|
|
typestr[d->d_type? d->d_type:sb.st_mode >> 12],
|
|
(int)sb.st_size, d->d_name);
|
|
} else {
|
|
snprintf(lbuf, sizeof(lbuf), " %c %s\n",
|
|
typestr[d->d_type? d->d_type:sb.st_mode >> 12], d->d_name);
|
|
}
|
|
if (pager_output(lbuf))
|
|
goto out;
|
|
}
|
|
}
|
|
out:
|
|
pager_close();
|
|
if (fd != -1)
|
|
close(fd);
|
|
free(path); /* ls_getdir() did allocate path */
|
|
return (result);
|
|
}
|
|
|
|
/*
|
|
* Given (path) containing a vaguely reasonable path specification, return an fd
|
|
* on the directory, and an allocated copy of the path to the directory.
|
|
*/
|
|
static int
|
|
ls_getdir(char **pathp)
|
|
{
|
|
struct stat sb;
|
|
int fd;
|
|
const char *cp;
|
|
char *path;
|
|
|
|
fd = -1;
|
|
|
|
/* one extra byte for a possible trailing slash required */
|
|
path = malloc(strlen(*pathp) + 2);
|
|
if (path == NULL) {
|
|
snprintf(command_errbuf, sizeof (command_errbuf),
|
|
"out of memory");
|
|
goto out;
|
|
}
|
|
strcpy(path, *pathp);
|
|
|
|
/* Make sure the path is respectable to begin with */
|
|
if (archsw.arch_getdev(NULL, path, &cp)) {
|
|
snprintf(command_errbuf, sizeof(command_errbuf),
|
|
"bad path '%s'", path);
|
|
goto out;
|
|
}
|
|
|
|
/* If there's no path on the device, assume '/' */
|
|
if (*cp == 0)
|
|
strcat(path, "/");
|
|
|
|
fd = open(path, O_RDONLY);
|
|
if (fd < 0) {
|
|
snprintf(command_errbuf, sizeof(command_errbuf),
|
|
"open '%s' failed: %s", path, strerror(errno));
|
|
goto out;
|
|
}
|
|
if (fstat(fd, &sb) < 0) {
|
|
snprintf(command_errbuf, sizeof(command_errbuf),
|
|
"stat failed: %s", strerror(errno));
|
|
goto out;
|
|
}
|
|
if (!S_ISDIR(sb.st_mode)) {
|
|
snprintf(command_errbuf, sizeof(command_errbuf),
|
|
"%s: %s", path, strerror(ENOTDIR));
|
|
goto out;
|
|
}
|
|
|
|
*pathp = path;
|
|
return (fd);
|
|
|
|
out:
|
|
free(path);
|
|
*pathp = NULL;
|
|
if (fd != -1)
|
|
close(fd);
|
|
return (-1);
|
|
}
|