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- /* listfile.c -- display a long listing of a file
- Copyright (C) 1985, 1988, 1989, 1990 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 1, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* MS-DOS port (c) 1990 by Thorsten Ohl, ohl@gnu.ai.mit.edu
- This port is also distributed under the terms of the
- GNU General Public License as published by the
- Free Software Foundation.
-
- Please note that this file is not identical to the
- original GNU release, you should have received this
- code as patch to the official release.
-
- $Header: e:/gnu/find/RCS/listfile.c 1.2.0.3 90/09/23 16:09:41 tho Exp $
- */
-
- #include <stdio.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <pwd.h>
- #ifndef MSDOS
- struct passwd *getpwuid ();
- #include <grp.h>
- struct group *getgrgid ();
- #include <time.h>
- #endif /* not MSDOS */
- #ifdef USG
- #ifdef MSDOS
- #define minor(n) (n)
- #define major(n) (n)
- #else /* not MSDOS */
- #include <sys/sysmacros.h>
- #endif /* not MSDOS */
- #include <string.h>
- #else
- #include <strings.h>
- #endif
-
- #ifdef MSDOS
- #include <time.h>
-
- extern void list_file (char *name, struct stat *statp);
- extern char *xmalloc (unsigned n);
- extern void mode_string (unsigned short mode, char *str);
- extern char *copystring (char *string);
- extern void print_name_with_quoting (char *p);
- extern char *getuser (int uid);
- extern char *getgroup (int gid);
- #endif /* MSDOS */
-
- extern int errno;
-
- long time ();
- void free ();
-
- char *xmalloc ();
- void error ();
- void mode_string ();
-
- char *copystring ();
- char *get_link_name ();
- char *getgroup ();
- char *getuser ();
- void print_name_with_quoting ();
-
- void
- list_file (name, statp)
- char *name;
- struct stat *statp;
- {
- char modebuf[20];
- char timebuf[40];
- long current_time = time ((time_t *) 0);
-
- mode_string (statp->st_mode, modebuf);
- modebuf[10] = '\0';
-
- strcpy (timebuf, ctime (&statp->st_mtime));
- if (current_time - statp->st_mtime > 6L * 30L * 24L * 60L * 60L
- || current_time - statp->st_mtime < 0L)
- {
- /* The file is fairly old or in the future.
- POSIX says the cutoff is 6 months old;
- approximate this by 6*30 days.
- Show the year instead of the time of day. */
- strcpy (timebuf + 11, timebuf + 19);
- }
- timebuf[16] = 0;
-
- #ifdef MSDOS /* poor MS-DOS has no inodes, links, etc. . */
-
- printf ("%s ", modebuf);
-
- if ((statp->st_mode & S_IFMT) == S_IFCHR)
- printf ("%3u, %3u ", major (statp->st_rdev), minor (statp->st_rdev));
- else
- printf ("%8lu ", statp->st_size);
-
- #else /* not MSDOS */
-
- printf ("%6u ", statp->st_ino);
-
- /* The space between the mode and the number of links is the POSIX
- "optional alternate access method flag". */
- printf ("%s %3u ", modebuf, statp->st_nlink);
-
- printf ("%-8.8s ", getuser (statp->st_uid));
-
- printf ("%-8.8s ", getgroup (statp->st_gid));
-
- if ((statp->st_mode & S_IFMT) == S_IFCHR
- || (statp->st_mode & S_IFMT) == S_IFBLK)
- printf ("%3u, %3u ", major (statp->st_rdev), minor (statp->st_rdev));
- else
- printf ("%8lu ", statp->st_size);
-
- #endif /* MSDOS */
-
- printf ("%s ", timebuf + 4);
-
- print_name_with_quoting (name);
-
- #ifdef S_IFLNK
- if ((statp->st_mode & S_IFMT) == S_IFLNK)
- {
- char *linkname = get_link_name (name, statp);
-
- if (linkname)
- {
- fputs (" -> ", stdout);
- print_name_with_quoting (linkname);
- free (linkname);
- }
- }
- #endif
- putchar ('\n');
- }
-
- void
- print_name_with_quoting (p)
- register char *p;
- {
- register unsigned char c;
-
- while (c = *p++)
- {
- switch (c)
- {
- case '\\':
- printf ("\\\\");
- break;
-
- case '\n':
- printf ("\\n");
- break;
-
- case '\b':
- printf ("\\b");
- break;
-
- case '\r':
- printf ("\\r");
- break;
-
- case '\t':
- printf ("\\t");
- break;
-
- case '\f':
- printf ("\\f");
- break;
-
- case ' ':
- printf ("\\ ");
- break;
-
- case '"':
- printf ("\\\"");
- break;
-
- default:
- if (c > 040 && c < 0177)
- putchar (c);
- else
- printf ("\\%03o", (unsigned int) c);
- }
- }
- }
-
- #ifdef S_IFLNK
- char *
- get_link_name (filename, statp)
- char *filename;
- struct stat *statp;
- {
- register char *linkbuf;
- register int bufsiz = statp->st_size;
-
- linkbuf = (char *) xmalloc (bufsiz + 1);
- linkbuf[bufsiz] = 0;
- if (readlink (filename, linkbuf, bufsiz) < 0)
- {
- error (0, errno, "%s", filename);
- free (linkbuf);
- return 0;
- }
- return linkbuf;
- }
- #endif
-
- struct userid
- {
- int uid;
- char *name;
- struct userid *next;
- };
-
- struct userid *user_alist;
-
- /* Translate `uid' to a login name, with cache. */
-
- char *
- getuser (uid)
- int uid;
- {
- register struct userid *tail;
- struct passwd *pwent;
- char usernum_string[20];
-
- for (tail = user_alist; tail; tail = tail->next)
- if (tail->uid == uid)
- return tail->name;
-
- pwent = getpwuid (uid);
- tail = (struct userid *) xmalloc (sizeof (struct userid));
- tail->uid = uid;
- tail->next = user_alist;
- if (pwent == 0)
- {
- sprintf (usernum_string, "%u", uid);
- tail->name = copystring (usernum_string);
- }
- else
- tail->name = copystring (pwent->pw_name);
- user_alist = tail;
- return tail->name;
- }
-
- /* We use the same struct as for userids. */
- struct userid *group_alist;
-
- /* Translate `gid' to a group name, with cache. */
-
- char *
- getgroup (gid)
- int gid;
- {
- register struct userid *tail;
- struct group *grent;
- char groupnum_string[20];
-
- for (tail = group_alist; tail; tail = tail->next)
- if (tail->uid == gid)
- return tail->name;
-
- grent = getgrgid (gid);
- tail = (struct userid *) xmalloc (sizeof (struct userid));
- tail->uid = gid;
- tail->next = group_alist;
- if (grent == 0)
- {
- sprintf (groupnum_string, "%u", gid);
- tail->name = copystring (groupnum_string);
- }
- else
- tail->name = copystring (grent->gr_name);
- group_alist = tail;
- return tail->name;
- }
-
- /* Return a newly allocated copy of `string'. */
-
- char *
- copystring (string)
- char *string;
- {
- return strcpy ((char *) xmalloc (strlen (string) + 1), string);
- }
-