I hacked this together last night. The only GNU code I looked at was the
Linux stat(1u) man page. (A man page is forthcoming, especially if there is
some interest in using this implementation.) The code is also available at
http://www.kagekaze.org/stat.c
Regards,
--Keith Stevenson--
--
Keith Stevenson
System Programmer - Data Center Services - University of Louisville
k.steven...@louisville.edu
PGP key fingerprint = 4B 29 A8 95 A8 82 EA A2 29 CE 68 DE FC EE B6 A0
/* stat.c: Human readable interface to stat(2) system call */
/*-
* Copyright (c) 1999 Keith Stevenson
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $Id: stat.c,v 1.2 1999/07/28 19:33:10 ktstev01 Exp $
*/
#ifndef lint
static const char copyright[] =
"Copyright (c) 1999\nKeith Stevenson. All rights reserved.\n";
static const char rcsid[] =
"$Id: stat.c,v 1.2 1999/07/28 19:33:10 ktstev01 Exp $";
#endif /* not lint */
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <grp.h>
#include <pwd.h>
#include <stdio.h>
#include <string.h>
#include <sysexits.h>
#include <time.h>
/* stat: Display the contents of an inode in a human friendly format. */
int
main(int argc, char *argv[])
{
char ftype[20];
char fmode[11];
int count;
struct group *gp;
struct passwd *pw;
struct stat inode;
struct tm *atime, *mtime, *ctime;
for (count = 1; count < argc; count++) {
if (lstat(argv[count], &inode) != -1) {
/* Initialize */
memset(fmode, '-', sizeof(fmode));
fmode[10] = '\0';
/* Interpret file type */
switch (inode.st_mode & S_IFMT) {
case S_IFIFO:
strncpy(ftype, "FIFO", sizeof(ftype));
fmode[0] = 'p';
break;
case S_IFCHR:
strncpy(ftype, "Character Special",
sizeof(ftype));
fmode[0] = 'c';
break;
case S_IFDIR:
strncpy(ftype, "Directory", sizeof(ftype));
fmode[0] = 'd';
break;
case S_IFBLK:
strncpy(ftype, "Block Special", sizeof(ftype));
fmode[0] = 'b';
break;
case S_IFREG:
strncpy(ftype, "Regular", sizeof(ftype));
break;
case S_IFLNK:
strncpy(ftype, "Symbolic Link", sizeof(ftype));
fmode[0] = 'l';
break;
case S_IFSOCK:
strncpy(ftype, "Socket", sizeof(ftype));
fmode[0] = 's';
break;
case S_IFWHT:
strncpy(ftype, "Whiteout", sizeof(ftype));
fmode[0] = '?';
break;
default:
strncpy(ftype, "Unknown", sizeof(ftype));
fmode[0] = '?';
break;
}
/* Interpret file mode */
if (inode.st_mode & S_IRUSR)
fmode[1] = 'r';
if (inode.st_mode & S_IWUSR)
fmode[2] = 'w';
if (inode.st_mode & S_IXUSR)
fmode[3] = 'x';
if (inode.st_mode & S_ISUID) {
if (inode.st_mode & S_IXUSR)
fmode[3] = 's';
else
fmode[3] = 'S';
}
if (inode.st_mode & S_IRGRP)
fmode[4] = 'r';
if (inode.st_mode & S_IWGRP)
fmode[5] = 'w';
if (inode.st_mode & S_IXGRP)
fmode[6] = 'x';
if (inode.st_mode & S_ISGID) {
if (inode.st_mode & S_IXGRP)
fmode[6] = 's';
else
fmode[6] = 'S';
}
if (inode.st_mode & S_IROTH)
fmode[7] = 'r';
if (inode.st_mode & S_IWOTH)
fmode[8] = 'w';
if (inode.st_mode & S_IXOTH)
fmode[9] = 'x';
if (inode.st_mode & S_ISVTX) {
if (inode.st_mode & S_IXOTH)
fmode[9] = 't';
else
fmode[9] = 'T';
}
/* Get ownerships and times */
pw = getpwuid(inode.st_uid);
gp = getgrgid(inode.st_gid);
atime = localtime(&inode.st_atime);
mtime = localtime(&inode.st_mtime);
ctime = localtime(&inode.st_ctime);
/* Pretty print it*/
printf("File: \"%s\"\n", argv[count]);
printf("Size: %qu\t", inode.st_size);
printf("Allocated Blocks: %qd\t", inode.st_blocks);
printf("Filetype: %s\n", ftype);
printf("Mode: (%.4o/%s)\t", (inode.st_mode & 07777),
fmode);
if (pw != NULL)
printf("Uid: (%hu/%s)\t", inode.st_uid,
pw->pw_name);
else
printf("Uid: (%hu/%hu)\t", inode.st_uid,
inode.st_uid);
if (gp != NULL)
printf("Gid: (%hu/%s)\n", inode.st_gid,
gp->gr_name);
else
printf("Gid: (%hu/%hu)\n", inode.st_gid,
inode.st_gid);
printf("Device: %u\t", inode.st_dev);
printf("Inode: %u\t", inode.st_ino);
printf("Links: %hu\n", inode.st_nlink);
printf("Access: %s", asctime(atime));
printf("Modify: %s", asctime(mtime));
printf("Change: %s\n", asctime(ctime));
} else {
switch(errno) {
case ENOTDIR:
case ENAMETOOLONG:
case ELOOP:
fprintf(stderr,
"Invalid file name specified.\n");
exit(EX_SOFTWARE);
break;
case ENOENT:
fprintf(stderr, "File not found.\n");
exit(EX_SOFTWARE);
break;
case EACCES:
fprintf(stderr, "Permission denied.\n");
exit(EX_NOPERM);
break;
case EFAULT:
fprintf(stderr, "Can't stat file.\n");
exit(EX_SOFTWARE);
break;
case EIO:
fprintf(stderr, "Can't stat file.\n");
exit(EX_OSERR);
break;
default:
fprintf(stderr, "Can't stat file.\n");
exit(EX_SOFTWARE);
break;
}
/* Not Reached */
exit(EX_SOFTWARE);
}
}
exit(EX_OK);
}
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