stat(1)-print out inode contents
Wombat
rsk at pucc-k
Sun Jul 14 01:02:34 AEST 1985
This is the nth rewrite of stat(1), which I believe was originally
written by Phil Hochstetler (now of Sequent). Essentially, it prints out
the structure returned by stat(2). Defining SINCE will cause stat(1) to
print the difference between "now" and "then" for each of the three dates
associated with the inode--this is probably easy to demo than to explain.
Here's a sample of the output:
-----
File: "."
Size: 2048 Allocated Blocks: 4 Filetype: Directory
Mode: (0751/drwxr-x--x) Uid: (18506/ rsk) Gid: ( 4/ staff)
Device: 5 Inode: 41167 Links: 3
Access: Sat Jul 13 09:54:12 1985(00000.00:04:11)
Modify: Sat Jul 13 09:58:22 1985(00000.00:00:01)
Change: Sat Jul 13 09:58:22 1985(00000.00:00:01)
-----
The times in ()'s are generated by the SINCE-defined code; note
that they are of the format ddddd.hh.mm.ss, which should be more than
sufficient to cover times back as far as the Epoch.
Please report bugs to me; also please note that this is for 4.2bsd;
although I have little doubt that it would be easily adaptable to other
species--such mods are also welcome in my mailbox.
/*
* Stat.c Dump out inode info in nice form.
* pur-ee!pucc-j!rsk, rsk at purdue-asc.arpa
* Original version by Hoch in the dark days of v6;
* this one by Rsk for 4.2 BSD.
*/
#include <stdio.h>
#include <time.h>
#include <sys/types.h>
#include <ctype.h>
#include <sys/stat.h>
#include <pwd.h>
#include <grp.h>
#define FAIL -1 /* Failure return code from call */
#define OKAY 0 /* Success return code from call */
struct stat Sbuf; /* for return values from stat() call */
char *ctime(); /* Time conversion */
struct passwd *getpwuid(); /* User entry */
struct passwd *pwent; /* User structure */
struct group *getgrgid(); /* Group entry */
struct group *grent; /* Group structure */
char Mode[10]; /* File protection mode */
#define LBUFSIZ 256 /* Length for symbolic link translation buffer */
char Lbuf[LBUFSIZ]; /* Symbolic link translation buffer */
main(argc, argv)
int argc;
char *argv[];
{
int i;
i = 1;
if(argc == 1) {
fprintf(stderr,"Usage: stat file1 [file2 ...]\n");
exit(1);
}
do {
stat_it(argv[i]);
if( (argc > 1) && (i < (argc-1)) )
printf("\n");
}
while(++i < argc);
exit(0);
}
/*
* stat_it() - Actually stat and format results from file.
* exit - OKAY if no problems encountered
* FAIL if couldn't open or other nastiness
*
*/
stat_it(filename)
char *filename;
{
int count;
if( lstat(filename,&Sbuf) == FAIL) {
fprintf(stderr,"Can't lstat %s\n",filename);
return(FAIL);
}
if( (Sbuf.st_mode & S_IFMT) == S_IFLNK) {
if( (count=readlink(filename,Lbuf,LBUFSIZ)) == FAIL) {
fprintf(stderr,"Can't readlink %s\n", filename);
return(FAIL);
}
if( count < LBUFSIZ)
Lbuf[count] = '\0';
printf(" File: \"%s\" -> \"%s\"\n",filename,Lbuf);
}
else
printf(" File: \"%s\"\n", filename);
printf(" Size: %-10d", Sbuf.st_size);
printf(" Allocated Blocks: %-10ld", Sbuf.st_blocks);
printf(" Filetype: ");
switch( Sbuf.st_mode & S_IFMT) {
case S_IFDIR: printf("Directory\n");
break;
case S_IFCHR: printf("Character Device\n");
break;
case S_IFBLK: printf("Block Device\n");
break;
case S_IFREG: printf("Regular File\n");
break;
case S_IFLNK: printf("Symbolic Link\n");
break;
case S_IFSOCK: printf("Socket\n");
break;
default : printf("Unknown\n");
}
strcpy(Mode,"----------");
if(Sbuf.st_mode & 0000001) /* Other execute */
Mode[9] = 'x';
if(Sbuf.st_mode & 0000002) /* Other write */
Mode[8] = 'w';
if(Sbuf.st_mode & 0000004) /* Other read */
Mode[7] = 'r';
if(Sbuf.st_mode & 0000010) /* Group execute */
Mode[6] = 'x';
if(Sbuf.st_mode & 0000020) /* Group write */
Mode[5] = 'w';
if(Sbuf.st_mode & 0000040) /* Group read */
Mode[4] = 'r';
if(Sbuf.st_mode & 0000100) /* User execute */
Mode[3] = 'x';
if(Sbuf.st_mode & 0000200) /* User write */
Mode[2] = 'w';
if(Sbuf.st_mode & 0000400) /* User read */
Mode[1] = 'r';
if(Sbuf.st_mode & 0001000) /* Sticky bit */
Mode[9] = 't';
if(Sbuf.st_mode & 0002000) /* Set group id */
Mode[6] = 's';
if(Sbuf.st_mode & 0004000) /* Set user id */
Mode[4] = 's';
switch( Sbuf.st_mode & S_IFMT) {
case S_IFDIR: Mode[0] = 'd';
break;
case S_IFCHR: Mode[0] = 'c';
break;
case S_IFBLK: Mode[0] = 'b';
break;
case S_IFREG: Mode[0] = '-';
break;
case S_IFLNK: Mode[0] = 'l';
break;
case S_IFSOCK: Mode[0] = 's';
break;
default : Mode[0] = '?';
}
printf(" Mode: (%04o/%s)", Sbuf.st_mode&07777,Mode);
(void) setpwent();
if( (pwent = getpwuid(Sbuf.st_uid)) == NULL) {
fprintf(stderr,"getpwuid() failed\n");
exit(1);
}
printf(" Uid: (%5d/%8s)", Sbuf.st_uid, pwent->pw_name);
(void) setgrent();
if( (grent = getgrgid(Sbuf.st_gid)) == NULL) {
fprintf(stderr,"getgrgid() failed\n");
exit(1);
}
printf(" Gid: (%5d/%8s)\n", Sbuf.st_gid, grent->gr_name);
printf("Device: %-5d", Sbuf.st_dev);
printf(" Inode: %-10d", Sbuf.st_ino);
printf("Links: %-5d", Sbuf.st_nlink);
/* Only meaningful if file is device */
if( ( (Sbuf.st_mode & S_IFMT) == S_IFCHR)
|| ( (Sbuf.st_mode & S_IFMT) == S_IFBLK) )
printf(" Device type: %d\n",Sbuf.st_rdev);
else
printf("\n");
/* The %.24s strips the newline from the ctime() string */
#ifdef SINCE
printf("Access: %.24s",ctime(&Sbuf.st_atime));
tsince(Sbuf.st_atime);
printf("Modify: %.24s",ctime(&Sbuf.st_mtime));
tsince(Sbuf.st_mtime);
printf("Change: %.24s",ctime(&Sbuf.st_ctime));
tsince(Sbuf.st_ctime);
#else SINCE
printf("Access: %s",ctime(&Sbuf.st_atime));
printf("Modify: %s",ctime(&Sbuf.st_mtime));
printf("Change: %s",ctime(&Sbuf.st_ctime));
#endif SINCE
/*
* Should I put this in somewhere? No.
*
* printf("Optimal Blocksize: %ld\n", Sbuf.st_blksize);
*/
return(OKAY);
}
#ifdef SINCE
tsince(time_sec)
long time_sec;
{
long time_buf;
long d_since; /* days elapsed since time */
long h_since; /* hours elapsed since time */
long m_since; /* minutes elapsed since time */
long s_since; /* seconds elapsed since time */
time(&time_buf);
if(time_sec > time_buf) {
fprintf(stderr,"Time going backwards\n");
exit(1);
}
s_since = time_buf - time_sec;
d_since = s_since / 86400l ;
s_since -= d_since * 86400l ;
h_since = s_since / 3600l ;
s_since -= h_since * 3600l ;
m_since = s_since / 60l ;
s_since -= m_since * 60l ;
printf("(%05ld.%02ld:%02ld:%02ld)\n",d_since,h_since,m_since,s_since);
return(OKAY);
}
#endif SINCE
--
Rich Kulawiec rsk@{pur-ee,purdue}.uucp, rsk at purdue-asc.csnet
rsk at purdue-asc.arpa (soon to be) rsk at asc.purdue.edu
More information about the Comp.sources.unix
mailing list