add 1994 copyright

[unix-history] / usr / src / bin / ls / ls.c

diff --git a/usr/src/bin/ls/ls.c b/usr/src/bin/ls/ls.c
index 4a010db..9628f7c 100644 (file)
--- a/usr/src/bin/ls/ls.c
+++ b/usr/src/bin/ls/ls.c
@@ -1,795 +1,482 @@
 /*
 /*

- * Written by Michael Fischbein, currently with Sun Microsystems, Inc.
- * (sun!sunbow!msf)
- * 16 June 1989 18:41
+ * Copyright (c) 1989, 1993, 1994
+ *     The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Michael Fischbein.
+ *
+ * %sccs.include.redist.c%

  */
  */

-#include <stdio.h>
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1989, 1993, 1994\n\
+       The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)ls.c       8.5 (Berkeley) %G%";
+#endif /* not lint */
+

 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/stat.h>

-#include <string.h>
-#include <errno.h>
-#include <sys/param.h>
-#include <dirent.h>
-#include <sys/sysmacros.h>
-#include <grp.h>
-#include <pwd.h>
-#include <time.h>
-#include <ctype.h>
-
-extern int getopt();
-extern char *optarg;
-extern int optind, opterr;
-extern int stat(), lstat();
-
-int     namecmp();             /* name comparison for qsort */
-int     revnamecmp();
-int     acccmp();              /* access time comparison for qsort */
-int     revacccmp();
-int     modcmp();              /* modify time comparixon for qsort */
-int     revmodcmp();
-int     statcmp();             /* status time comparixon for qsort */
-int     revstatcmp();
-int     printfancy();
-int     prablelen();
-char   *emalloc();
-
-typedef struct lsstruct {
-       char   *name;           /* pointer to filename */
-       struct stat lstat;
-}       lsstruct;
-
-
-int    qflg, Aflg, Cflg, Fflg, Lflg, Rflg, Sflg;
+#include <sys/ioctl.h>

 
 

-/*
- * entry point for ls.
- * Parse options and call appropriate subroutines
- */
+#include <dirent.h>
+#include <err.h>
+#include <errno.h>
+#include <fts.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "ls.h"
+#include "extern.h"
+
+static void     display __P((FTSENT *, FTSENT *));
+static int      mastercmp __P((const FTSENT **, const FTSENT **));
+static void     traverse __P((int, char **, int));
+
+static void (*printfcn) __P((DISPLAY *));
+static int (*sortfcn) __P((const FTSENT *, const FTSENT *));
+
+long blocksize;                        /* block size units */
+int termwidth = 80;            /* default terminal width */
+
+/* flags */
+int f_accesstime;              /* use time of last access */
+int f_column;                  /* columnated format */
+int f_flags;                   /* show flags associated with a file */
+int f_inode;                   /* print inode */
+int f_listdir;                 /* list actual directory, not contents */
+int f_listdot;                 /* list files beginning with . */
+int f_longform;                        /* long listing format */
+int f_newline;                 /* if precede with newline */
+int f_nonprint;                        /* show unprintables as ? */
+int f_nosort;                  /* don't sort output */
+int f_recursive;               /* ls subdirectories also */
+int f_reversesort;             /* reverse whatever sort is used */
+int f_sectime;                 /* print the real time for all files */
+int f_singlecol;               /* use single column output */
+int f_size;                    /* list size in short listing */
+int f_statustime;              /* use time of last mode change */
+int f_dirname;                 /* if precede with directory name */
+int f_timesort;                        /* sort by time vice name */
+int f_type;                    /* add type character for non-regular files */
+
+int

 main(argc, argv)
 main(argc, argv)

-int     argc;
-char   *argv[];
-
+       int argc;
+       char *argv[];

 {
 {

-       static char options[] = "aAcCdfFgilLqrRstu1";
-       int     inch;           /* input character */
-
- /* set up defaults for terminal/nonterminal stdout */
-       firsttimethruflag = 1;
-       if (isatty(1)) {
-               singlecolflag = 0;
-               sortacrossflag = 0;
-               nonprintflag++;
-               lengthfcn = prablelen;
-       } else {
-               singlecolflag++;
-       }
-
-       if (getuid() == 0) {
-               listallflag++;
-       }
-       while ((inch = getopt(argc, argv, options)) != -1) {
-               switch (inch) {
-               case 'a':
-                       listallflag++;
-                       listalwaysflag++;
+       static char dot[] = ".", *dotav[] = { dot, NULL };
+       struct winsize win;
+       int ch, fts_options, notused;
+       char *p;
+
+       /* Terminal defaults to -Cq, non-terminal defaults to -1. */
+       if (isatty(STDOUT_FILENO)) {
+               if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) == -1 ||
+                   !win.ws_col) {
+                       if ((p = getenv("COLUMNS")) != NULL)
+                               termwidth = atoi(p);
+               }
+               else
+                       termwidth = win.ws_col;
+               f_column = f_nonprint = 1;
+       } else
+               f_singlecol = 1;
+
+       /* Root is -A automatically. */
+       if (!getuid())
+               f_listdot = 1;
+
+       fts_options = FTS_PHYSICAL;
+       while ((ch = getopt(argc, argv, "1ACFLRTacdfgiloqrstu")) != EOF) {
+               switch (ch) {
+               /*
+                * The -1, -C and -l options all override each other so shell
+                * aliasing works right.
+                */
+               case '1':
+                       f_singlecol = 1;
+                       f_column = f_longform = 0;

                        break;
                        break;

-               case 'A':
-                       listallflag++;
+               case 'C':
+                       f_column = 1;
+                       f_longform = f_singlecol = 0;

                        break;
                        break;

+               case 'l':
+                       f_longform = 1;
+                       f_column = f_singlecol = 0;
+                       break;
+               /* The -c and -u options override each other. */

                case 'c':
                case 'c':

-                       statustimeflag++;
-                       modtimeflag = 0;
-                       accesstimeflag = 0;
+                       f_statustime = 1;
+                       f_accesstime = 0;

                        break;
                        break;

-               case 'C':
-                       singlecolflag = 0;
-                       sortacrossflag = 0;
+               case 'u':
+                       f_accesstime = 1;
+                       f_statustime = 0;

                        break;
                        break;

+               case 'F':
+                       f_type = 1;
+                       break;
+               case 'L':
+                       fts_options &= ~FTS_PHYSICAL;
+                       fts_options |= FTS_LOGICAL;
+                       break;
+               case 'R':
+                       f_recursive = 1;
+                       break;
+               case 'a':
+                       fts_options |= FTS_SEEDOT;
+                       /* FALLTHROUGH */
+               case 'A':
+                       f_listdot = 1;
+                       break;
+               /* The -d option turns off the -R option. */

                case 'S':
                        Sflg++; /* fall into... */
                case 'd':
                case 'S':
                        Sflg++; /* fall into... */
                case 'd':

-                       listdirflag++;
+                       f_listdir = 1;
+                       f_recursive = 0;

                        break;
                case 'f':
                        break;
                case 'f':

-                       longformflag = 0;
-                       timesortflag = 0;
-                       sizeflag = 0;
-                       reversesortflag = 0;
-                       listallflag++;
-                       listalwaysflag++;
-                       specialdirflag++;
-                       break;
-               case 'F':
-                       fancyflag++;
+                       f_nosort = 1;

                        break;
                        break;

-               case 'g':
-                       groupflag++;
+               case 'g':               /* Compatibility with 4.3BSD. */

                        break;
                case 'i':
                        break;
                case 'i':

-                       inodeflag++;
-                       break;
-               case 'l':
-                       longformflag++;
-                       numberflag = 0;
-                       singlecolflag = 0;
-                       statfcn = lstat;
-                       if (accesstimeflag == 0 && statustimeflag == 0) {
-                               modtimeflag++;
-                       }
+                       f_inode = 1;

                        break;
                        break;

-               case 'L':
-                       statfcn = stat;
+               case 'o':
+                       f_flags = 1;

                        break;
                case 'q':
                        break;
                case 'q':

-                       nonprintflag++;
-                       lengthfcn = prablelen;
+                       f_nonprint = 1;

                        break;
                case 'r':
                        break;
                case 'r':

-                       reversesortflag++;
-                       break;
-               case 'R':
-                       recursiveflag++;
-                       statfcn = lstat;
+                       f_reversesort = 1;

                        break;
                case 's':
                        break;
                case 's':

-                       sizeflag++;
-                       statfcn = lstat;
+                       f_size = 1;

                        break;
                        break;

-               case 't':
-                       timesortflag++;
-                       if (accesstimeflag == 0 && statustimeflag == 0) {
-                               modtimeflag++;
-                       }
-                       break;
-               case 'u':
-                       accesstimeflag++;
-                       modtimeflag = 0;
-                       statustimeflag = 0;
+               case 'T':
+                       f_sectime = 1;

                        break;
                        break;

-               case '1':
-                       singlecolflag++;
+               case 't':
+                       f_timesort = 1;

                        break;
                default:
                case '?':
                        break;
                default:
                case '?':

-                       (void) fprintf(stderr, "Usage: %s [-%s] [file ...]\n", argv[0], options);
-                       exit(1);
+                       usage();

                }
                }

-       }                       /* end of option loop */
- /* do the work */
-       if (argc > optind) {
-               lsdir(argc - optind, &argv[optind]);
-       } else {
-               char   *defname = ".";
-
-               lsdir(1, &defname);

        }
        }

-}
-
-/*
- * list the files in a directory
- */
-
-
-extern int errno;
-
-int     lsdir(argc, argv)
-int     argc;                  /* count of file names passed */
-char   *argv[];                        /* array of file names */
-
-{
-       int     curname;
-       int     goodcount = 0;
-       lsstruct *stats;
-       int     i;
-       static char curpath[MAXPATHLEN + 1];
-       char   *midpt;
-
- /* allocate memory to proceed. Lint complains, but emalloc is aligned */
-       stats = (lsstruct *) emalloc((unsigned) argc * (sizeof(struct lsstruct)));
-
-       for (curname = 0; curname < argc; ++curname) {
-               if (!firsttimethruflag) {
+       argc -= optind;
+       argv += optind;
+
+       /*
+        * If not -F, -i, -l, -s or -t options, don't require stat
+        * information.
+        */
+       if (!f_inode && !f_longform && !f_size && !f_timesort && !f_type)
+               fts_options |= FTS_NOSTAT;
+
+       /*
+        * If not -F, -d or -l options, follow any symbolic links listed on
+        * the command line.
+        */
+       if (!f_longform && !f_listdir && !f_type)
+               fts_options |= FTS_COMFOLLOW;
+
+       /* If -l or -s, figure out block size. */
+       if (f_longform || f_size) {
+               (void)getbsize(&notused, &blocksize);
+               blocksize /= 512;
+       }

 
 

-               /*
-                * check for .xxx files. Note can't get listalways without
-                * listall being set
-                */
-                       if (argv[curname][0] == '.' && !listallflag) {
-                               continue;
-                       }
-               /* and now for listalways: . and .. */
-                       if ((argv[curname][0] == '.' && argv[curname][1] == '\0') ||
-                                       (argv[curname][0] == '.' && argv[curname][1] == '.' &&
-                                        argv[curname][2] == '\0')) {
-                               if (!listalwaysflag)
-                                       continue;
-                       }
-               }               /* end of not firsttimethru test */
-               if (firsttimethruflag || longformflag || recursiveflag || timesortflag || sizeflag || inodeflag || fancyflag) {
-                       if (statfcn(argv[curname], &stats[goodcount].lstat) == -1) {
-                               if (errno == ENOENT) {
-                                       (void) fprintf(stderr, "%s not found\n", argv[curname]);
-                                       continue;
-                               } else {
-                                       perror(argv[curname]);
-                                       exit(1);
-                               }
-                       }       /* end of stat error check */
-               }
-               stats[goodcount].name = argv[curname];
-               goodcount++;
-       }                       /* end of per name loop */
-
- /* sort the names */
-       if (goodcount > 1 && !specialdirflag) {
-               if (reversesortflag) {
-                       if (!timesortflag) {
-                               qsort((char *) stats, goodcount, sizeof(struct lsstruct), revnamecmp);
-                       } else {
-                               if (accesstimeflag) {
-                                       qsort((char *) stats, goodcount, sizeof(struct lsstruct), revacccmp);
-                               } else {
-                                       if (modtimeflag) {
-                                               qsort((char *) stats, goodcount, sizeof(struct lsstruct), revmodcmp);
-                                       } else {
-                                               if (statustimeflag) {
-                                                       qsort((char *) stats, goodcount, sizeof(struct lsstruct), revstatcmp);
-                                               } else {
-                                               }
-                                       }
-                               }
-                       }
-               } else {
-                       if (!timesortflag) {
-                               qsort((char *) stats, goodcount, sizeof(struct lsstruct), namecmp);
-                       } else {
-                               if (accesstimeflag) {
-                                       qsort((char *) stats, goodcount, sizeof(struct lsstruct), acccmp);
-                               } else {
-                                       if (modtimeflag) {
-                                               qsort((char *) stats, goodcount, sizeof(struct lsstruct), modcmp);
-                                       } else {
-                                               if (statustimeflag) {
-                                                       qsort((char *) stats, goodcount, sizeof(struct lsstruct), statcmp);
-                                               } else {
-                                               }
-                                       }
-                               }
-                       }
-               }
-       }                       /* end of sort conditionals */
-       prindir(stats, goodcount);
-
-       if ((firsttimethruflag && !listdirflag) || recursiveflag) {
-               for (i = 0; i < goodcount; ++i) {
-               /* recurse on directories */
-                       if ((stats[i].lstat.st_mode & S_IFMT) == S_IFDIR) {
-                       /* don't recurse on . or .. */
-                               if ((stats[i].name[0] == '.' && stats[i].name[1] == '\0') ||
-                                               (stats[i].name[0] == '.' && stats[i].name[1] == '.' && stats[i].name[2] == '\0')) {
-                                       if (!firsttimethruflag) {
-                                               continue;
-                                       }
-                               }
-                               if (chdir(stats[i].name) == -1) {
-                                       perror(stats[i].name);
-                                       break;
-                               }
-                               if (goodcount > 1 || !firsttimethruflag || recursiveflag) {
-                               /* add current name to path */
-                                       if ((midpt = strchr(curpath, (int) '\0')) != curpath) {
-                                               if (midpt[-1] != '/') {
-                                                       *midpt++ = '/';
-                                               }
-                                       }
-                                       (void) strcpy(midpt, stats[i].name);
-
-                                       if (goodcount > 1 || !firsttimethruflag) {
-                                               (void) printf("\n%s:\n", curpath);
-                                       }
-                               }
-                               recursedir(&stats[i]);
-                               if (goodcount > 1 || !firsttimethruflag) {
-                                       *midpt = '\0';
-                               }
-                               if (chdir("..") == -1) {
-                                       perror(stats[i].name);
-                               }
-                       }
-               }               /* end of for loop looking for directories */
-               firsttimethruflag = 0;
+       /* Select a sort function. */
+       if (f_reversesort) {
+               if (!f_timesort)
+                       sortfcn = revnamecmp;
+               else if (f_accesstime)
+                       sortfcn = revacccmp;
+               else if (f_statustime)
+                       sortfcn = revstatcmp;
+               else /* Use modification time. */
+                       sortfcn = revmodcmp;
+       } else {
+               if (!f_timesort)
+                       sortfcn = namecmp;
+               else if (f_accesstime)
+                       sortfcn = acccmp;
+               else if (f_statustime)
+                       sortfcn = statcmp;
+               else /* Use modification time. */
+                       sortfcn = modcmp;

        }
        }

-       free((char *) stats);
+
+       /* Select a print function. */
+       if (f_singlecol)
+               printfcn = printscol;
+       else if (f_longform)
+               printfcn = printlong;
+       else
+               printfcn = printcol;
+
+       if (argc)
+               traverse(argc, argv, fts_options);
+       else
+               traverse(1, dotav, fts_options);
+       exit(0);

 }
 
 }
 

+static int output;                     /* If anything output. */
+

 /*
 /*

- * set up the call to lsdir (lsdir(count, argv-type array))
- * mutually recursive with lsdir
+ * Traverse() walks the logical directory structure specified by the argv list
+ * in the order specified by the mastercmp() comparison function.  During the
+ * traversal it passes linked lists of structures to display() which represent
+ * a superset (may be exact set) of the files to be displayed.

  */
  */

+static void
+traverse(argc, argv, options)
+       int argc, options;
+       char *argv[];
+{
+       FTS *ftsp;
+       FTSENT *p, *chp;
+       int ch_options;

 
 

+       if ((ftsp =
+           fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL)
+               err(1, NULL);

 
 

-recursedir(orig)
-lsstruct *orig;
-{
-       DIR    *dirp;
-       struct dirent *entry;
-       char   *argvblock;
-       char  **argv;
-       int     blocksub = 0;
-       int     vsub = 0;
-       int     oldfirsttimeflag;
-
-       if ((dirp = opendir(".")) == NULL) {
-       /* perror(orig->name); more info, less compatible */
-               (void) fprintf(stderr, "%s unreadable\n", orig->name);
+       display(NULL, fts_children(ftsp, 0));
+       if (f_listdir)

                return;
                return;

-       }
- /* wildly overestimate dynamic amount of memory needed */
- /* lint complains about casting off_t to unsigned int. */
-       argvblock = emalloc((unsigned) orig->lstat.st_size);
- /* lint also complains about this alignment.  It's OK */
-       argv = (char **) emalloc((unsigned) orig->lstat.st_size);
-
-       while ((entry = readdir(dirp)) != NULL) {
-               argv[vsub++] = strncpy(&argvblock[blocksub], entry->d_name, (int) entry->d_namlen);
-               blocksub += entry->d_namlen;
-               argvblock[blocksub++] = '\0';
-       }
-       (void) closedir(dirp);

 
 

-       oldfirsttimeflag = firsttimethruflag;
-       firsttimethruflag = 0;
+       /*
+        * If not recursing down this tree and don't need stat info, just get
+        * the names.
+        */
+       ch_options = !f_recursive && options & FTS_NOSTAT ? FTS_NAMEONLY : 0;

 
 

-       lsdir(vsub, argv);
+       while ((p = fts_read(ftsp)) != NULL)
+               switch (p->fts_info) {
+               case FTS_DC:
+                       warnx("%s: directory causes a cycle", p->fts_name);
+                       break;
+               case FTS_DNR:
+               case FTS_ERR:
+                       warnx("%s: %s", p->fts_name, strerror(p->fts_errno));
+                       break;
+               case FTS_D:
+                       if (p->fts_level != FTS_ROOTLEVEL &&
+                           p->fts_name[0] == '.' && !f_listdot)
+                               break;
+
+                       /*
+                        * If already output something, put out a newline as
+                        * a separator.  If multiple arguments, precede each
+                        * directory with its name.
+                        */
+                       if (output)
+                               (void)printf("\n%s:\n", p->fts_path);
+                       else if (argc > 1) {
+                               (void)printf("%s:\n", p->fts_path);
+                               output = 1;
+                       }

 
 

-       firsttimethruflag = oldfirsttimeflag;
+                       chp = fts_children(ftsp, ch_options);
+                       display(p, chp);

 
 

-       free(argvblock);
-       free((char *) argv);
+                       if (!f_recursive && chp != NULL)
+                               (void)fts_set(ftsp, p, FTS_SKIP);
+                       break;
+               }
+       if (errno)
+               err(1, "fts_read");

 }
 
 /*
 }
 
 /*

- * print a statted (if necessary), sorted directory by listing option
+ * Display() takes a linked list of FTSENT structures and passes the list
+ * along with any other necessary information to the print function.  P
+ * points to the parent directory of the display list.

  */
  */

-
-int     printaname();
-
-prindir(stats, endcount)
-lsstruct stats[];              /* the statted, sorted directory */
-int     endcount;
-
+static void
+display(p, list)
+       FTSENT *p, *list;

 {
 {

-       int     i;              /* subscript to stats */
-       int     maxlen;         /* length of longest name string */
-       int     colwidth;       /* width of a printing column */
-       int     numcols;        /* number of columns */
-       int     collength;      /* lines in longest column */
-       int     base;           /* subscript for leftmost column */
-       int     offset;         /* delta from base to next column */
-       int     chcnt;          /* character count printed */
-       long    blocks;         /* sum of blocks in longform listing */
-
-       if (endcount <= 0) {    /* sanity check; also if only bad names given */
+       struct stat *sp;
+       DISPLAY d;
+       FTSENT *cur;
+       NAMES *np;
+       u_quad_t maxsize;
+       u_long btotal, maxblock, maxinode, maxlen, maxnlink;
+       int bcfile, flen, glen, ulen, maxflags, maxgroup, maxuser;
+       int entries, needstats;
+       char *user, *group, *flags, buf[20];    /* 32 bits == 10 digits */
+
+       /*
+        * If list is NULL there are two possibilities: that the parent
+        * directory p has no children, or that fts_children() returned an
+        * error.  We ignore the error case since it will be replicated
+        * on the next call to fts_read() on the post-order visit to the
+        * directory p, and will be signalled in traverse().
+        */
+       if (list == NULL)

                return;
                return;

-       }
-/* don't print out a single directory name as argument first time around */
-       if (!((firsttimethruflag && !listdirflag) && (endcount == 1) && ((stats[0].lstat.st_mode & S_IFMT) == S_IFDIR))) {
-               if (singlecolflag) {
-                       for (i = 0; i < endcount; ++i) {
-                               (void) printaname(&stats[i]);
-                               (void) putchar('\n');
-                       }
-               } else if (longformflag) {
-                       for (i = 0, blocks = 0; i < endcount; ++i) {
-                               blocks += stats[i].lstat.st_blocks;
-                       }
-                       (void) printf("total %ld\n", blocks / 2);
-                       for (i = 0; i < endcount; ++i) {
-                               if (inodeflag) {
-                                       (void) printf("%6d ", stats[i].lstat.st_ino);
-                               }
-                               if (sizeflag) {
-                                       (void) printf("%4d ", stats[i].lstat.st_blocks / 2);
-                               }
-                               printperms(stats[i].lstat.st_mode);
-                               (void) printf("%3d ", stats[i].lstat.st_nlink);
-                               printowner(stats[i].lstat.st_uid);
-                               if (groupflag) {
-                                       printgrp(stats[i].lstat.st_gid);
-                               }
-                               if (((stats[i].lstat.st_mode & S_IFMT) == S_IFCHR) ||
-                                               ((stats[i].lstat.st_mode & S_IFMT) == S_IFBLK)) {
-                                       (void) printf("%3d,%4d ", major(stats[i].lstat.st_rdev), minor(stats[i].lstat.st_rdev));
-                               } else {
-                                       (void) printf("%8d ", stats[i].lstat.st_size);
-                               }
-                               if (accesstimeflag) {
-                                       printtime(stats[i].lstat.st_atime);
-                               } else if (statustimeflag) {
-                                       printtime(stats[i].lstat.st_ctime);
-                               } else {
-                                       printtime(stats[i].lstat.st_mtime);
-                               }
-                               (void) printf("%s", stats[i].name);
-                               if (fancyflag) {
-                                       (void) printfancy(stats[i].lstat.st_mode);
-                               }
-                               if ((stats[i].lstat.st_mode & S_IFMT) == S_IFLNK) {
-                                       char    buf[MAXPATHLEN + 1];
-                                       int     j;
-
-                                       if ((j = readlink(stats[i].name, buf, MAXPATHLEN)) == -1) {
-                                               perror(stats[i].name);
-                                               (void) putchar('\n');
-                                               continue;
-                                       }
-                                       buf[j + 1] = '\0';
-                                       (void) printf(" -> %s", buf);
-                               }
-                               (void) putchar('\n');
-                       }
-               } else {
+
+       needstats = f_inode || f_longform || f_size;
+       flen = 0;
+       btotal = maxblock = maxinode = maxlen = maxnlink = 0;
+       bcfile = 0;
+       maxuser = maxgroup = maxflags = 0;
+       maxsize = 0;
+       for (cur = list, entries = 0; cur; cur = cur->fts_link) {
+               if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) {
+                       warnx("%s: %s",
+                           cur->fts_name, strerror(cur->fts_errno));
+                       cur->fts_number = NO_PRINT;
+                       continue;
+               }

 
                /*
 
                /*

-                * assume tabs every 8 columns WARNING: bad code (hard coded
-                * constants) follows:
+                * P is NULL if list is the argv list, to which different rules
+                * apply.

                 */
                 */

-
-               /* figure out max width */
-                       maxlen = 0;
-                       for (i = 0; i < endcount; ++i) {
-                               if (maxlen < lengthfcn(stats[i].name)) {
-                                       maxlen = lengthfcn(stats[i].name);
-                               }
-                       }       /* end of determining max width of name */
-
-               /* add fudge factors to max name length */
-                       if (inodeflag) {
-                               maxlen += 6;
-                       }
-                       if (sizeflag) {
-                               maxlen += 5;
+               if (p == NULL) {
+                       /* Directories will be displayed later. */
+                       if (cur->fts_info == FTS_D && !f_listdir) {
+                               cur->fts_number = NO_PRINT;
+                               continue;

                        }
                        }

-                       if (fancyflag) {
-                               maxlen += 1;
+               } else {
+                       /* Only display dot file if -a/-A set. */
+                       if (cur->fts_name[0] == '.' && !f_listdot) {
+                               cur->fts_number = NO_PRINT;
+                               continue;

                        }
                        }

-                       colwidth = (maxlen + 9) & ~0x7; /* one tab after maxlen */
-                       numcols = (80 + colwidth - maxlen) / colwidth;
-                       collength = (int) ((float) endcount / (float) numcols + 0.999);
-
-                       for (base = 0; base < collength; base++) {
-                               for (offset = 0, i = 0; i < numcols; ++i, offset += collength) {
-
-                                       if ((base + offset) >= endcount) {
-                                               break;
-                                       }
-                                       chcnt = printaname(&stats[base + offset]);
-
-                                       if ((base + offset + collength) < endcount) {
-                                               while (chcnt + 8 < colwidth) {
-                                                       (void) putchar('\t');
-                                                       chcnt += 8;
-                                               }
-                                               if (chcnt < colwidth) {
-                                                       (void) putchar('\t');
-                                               }
-                                               chcnt = (chcnt + 8) & ~0x7;
-                                       }
-                               }
-                               if (base + offset < endcount) {
-                                       (void) printaname(&stats[base + offset]);
+               }
+               if (f_nonprint)
+                       prcopy(cur->fts_name, cur->fts_name, cur->fts_namelen);
+               if (cur->fts_namelen > maxlen)
+                       maxlen = cur->fts_namelen;
+               if (needstats) {
+                       sp = cur->fts_statp;
+                       if (sp->st_blocks > maxblock)
+                               maxblock = sp->st_blocks;
+                       if (sp->st_ino > maxinode)
+                               maxinode = sp->st_ino;
+                       if (sp->st_nlink > maxnlink)
+                               maxnlink = sp->st_nlink;
+                       if (sp->st_size > maxsize)
+                               maxsize = sp->st_size;
+
+                       btotal += sp->st_blocks;
+                       if (f_longform) {
+                               user = user_from_uid(sp->st_uid, 0);
+                               if ((ulen = strlen(user)) > maxuser)
+                                       maxuser = ulen;
+                               group = group_from_gid(sp->st_gid, 0);
+                               if ((glen = strlen(group)) > maxgroup)
+                                       maxgroup = glen;
+                               if (f_flags) {
+                                       flags =
+                                           flags_to_string(sp->st_flags, "-");
+                                       if ((flen = strlen(flags)) > maxflags)
+                                               maxflags = flen;
+                               } else
+                                       flen = 0;
+
+                               if ((np = malloc(sizeof(NAMES) +
+                                   ulen + glen + flen + 3)) == NULL)
+                                       err(1, NULL);
+
+                               np->user = &np->data[0];
+                               (void)strcpy(np->user, user);
+                               np->group = &np->data[ulen + 1];
+                               (void)strcpy(np->group, group);
+
+                               if (S_ISCHR(sp->st_mode) ||
+                                   S_ISBLK(sp->st_mode))
+                                       bcfile = 1;
+
+                               if (f_flags) {
+                                       np->flags = &np->data[ulen + glen + 2];
+                                       (void)strcpy(np->flags, flags);

                                }
                                }

-                               (void) printf("\n");
-                       }       /* end of base and offset loop */
+                               cur->fts_pointer = np;
+                       }

                }
                }

+               ++entries;

        }
        }

-}
-
-/*
- * print [inode] [size] name
- * return # of characters printed
- * no trailing characters
- */
-int     printaname(entry)
-lsstruct *entry;
-{
-       int     chcnt = 0;
-
-       if (inodeflag) {
-               chcnt += printf("%5d ", entry->lstat.st_ino);
-       }
-       if (sizeflag) {
-               chcnt += printf("%4d ", entry->lstat.st_blocks / 2);
-       }
-       chcnt += printf("%s", entry->name);
-
-       if (fancyflag) {
-               return (chcnt + printfancy(entry->lstat.st_mode));
-       }
-       return chcnt;
-}
-
-/*
- * print group and user name
- */
-
-
-
-printgrp(groupid)
-short   groupid;
-{
-       struct group *groupentry;
-
-       if ((groupentry = getgrgid((int) groupid)) == NULL) {
-       /* can't find group, print out number instead */
-               (void) printf("%-9d ", groupid);
-               return;
-       }
-       (void) printf("%-9s", groupentry->gr_name);
-       (void) getgrent();      /* to rewind group file */
-}
-
-
-printowner(uid)
-short   uid;
-{
-       struct passwd *pwentry;

 
 

-       if ((pwentry = getpwuid((int) uid)) == NULL) {
-       /* can't find owner, print out number instead */
-               (void) printf("%-9d ", uid);
+       if (!entries)

                return;
                return;

-       }
-       (void) printf("%-9s", pwentry->pw_name);
-       (void) getpwent();
-}
-
-#define SIXMONTHS 6l*30l*24l*3600l
-time_t  time();
-
-printtime(ftime)
-time_t  ftime;
-{
-       int     i;
-       char   *longstring;
-
-       longstring = ctime((long *) &ftime);
-
-       for (i = 4; i < 11; ++i) {
-               (void) putchar(longstring[i]);
-       }
-
-       if (ftime + SIXMONTHS > time((time_t *) NULL)) {
-               for (i = 11; i < 16; ++i) {
-                       (void) putchar(longstring[i]);
-               }
-       } else {
-               (void) putchar(' ');
-               for (i = 20; i < 24; ++i) {
-                       (void) putchar(longstring[i]);
-               }
-       }
-       (void) putchar(' ');
-}
-
-/*
- * act like strlen, but also translate non-printing chars to '?'
- */
-
-
-int     prablelen(cp)
-char   *cp;
-{
-       register int len = 0;

 
 

-       while (*cp != '\0') {
-               if (!isprint(*cp)) {
-                       *cp = '?';
-               }
-               ++len;
-               ++cp;
+       d.list = list;
+       d.entries = entries;
+       d.maxlen = maxlen;
+       if (needstats) {
+               d.bcfile = bcfile;
+               d.btotal = btotal;
+               (void)snprintf(buf, sizeof(buf), "%lu", maxblock);
+               d.s_block = strlen(buf);
+               d.s_flags = maxflags;
+               d.s_group = maxgroup;
+               (void)snprintf(buf, sizeof(buf), "%lu", maxinode);
+               d.s_inode = strlen(buf);
+               (void)snprintf(buf, sizeof(buf), "%lu", maxnlink);
+               d.s_nlink = strlen(buf);
+               (void)snprintf(buf, sizeof(buf), "%qu", maxsize);
+               d.s_size = strlen(buf);
+               d.s_user = maxuser;

        }
        }

-       return len;
-}

 
 

-/*
- * do the permissions printing, passed the mode
- */
-
-printperms(mode)
-u_short mode;
-{
- /* print type */
-       switch (mode & S_IFMT) {
-       case S_IFDIR:           /* directory */
-               (void) putchar('d');
-               break;
-       case S_IFCHR:           /* character special */
-               (void) putchar('c');
-               break;
-       case S_IFBLK:           /* block special */
-               (void) putchar('b');
-               break;
-       case S_IFREG:           /* regular */
-               (void) putchar('-');
-               break;
-       case S_IFLNK:           /* symbolic link */
-               (void) putchar('l');
-               break;
-       case S_IFSOCK:          /* socket */
-               (void) putchar('s');
-               break;
-#ifdef S_IFIFO
-       case S_IFIFO:           /* fifo */
-               (void) putchar('p');
-               break;
-#endif
-       default:                /* unknown */
-               (void) putchar('?');
-               break;
-       }
- /* usr */
-       if (mode & S_IRUSR) {
-               (void) putchar('r');
-       } else {
-               (void) putchar('-');
-       }
-       if (mode & S_IWUSR) {
-               (void) putchar('w');
-       } else {
-               (void) putchar('-');
-       }
-       switch (mode & (S_IXUSR | S_ISUID)) {
-       case 0:
-               (void) putchar('-');
-               break;
-       case S_IXUSR:
-               (void) putchar('x');
-               break;
-       case S_ISUID:
-               (void) putchar('S');
-               break;
-       case S_IXUSR | S_ISUID:
-               (void) putchar('s');
-               break;
-       }
- /* group */
-       if (mode & S_IRGRP) {
-               (void) putchar('r');
-       } else {
-               (void) putchar('-');
-       }
-       if (mode & S_IWGRP) {
-               (void) putchar('w');
-       } else {
-               (void) putchar('-');
-       }
-       switch (mode & (S_IXGRP | S_ISGID)) {
-       case 0:
-               (void) putchar('-');
-               break;
-       case S_IXGRP:
-               (void) putchar('x');
-               break;
-       case S_ISGID:
-               (void) putchar('S');
-               break;
-       case S_IXGRP | S_ISGID:
-               (void) putchar('s');
-               break;
-       }
- /* other */
-       if (mode & S_IROTH) {
-               (void) putchar('r');
-       } else {
-               (void) putchar('-');
-       }
-       if (mode & S_IWOTH) {
-               (void) putchar('w');
-       } else {
-               (void) putchar('-');
-       }
-       switch (mode & (S_IXOTH | S_ISVTX)) {
-       case 0:
-               (void) putchar('-');
-               break;
-       case S_IXOTH:
-               (void) putchar('x');
-               break;
-       case S_ISVTX:
-               (void) putchar('T');
-               break;
-       case S_IXOTH | S_ISVTX:
-               (void) putchar('t');
-               break;
-       }
-}
+       printfcn(&d);
+       output = 1;

 
 

-int     printfancy(mode)
-u_short mode;
-{
-       if ((mode & S_IFMT) == S_IFDIR) {
-               (void) putchar('/');
-               return 1;
-       }
-       if ((mode & S_IFMT) == S_IFLNK && !longformflag) {
-               (void) putchar('@');
-               return 1;
-       }
-       if ((mode & S_IFMT) == S_IFSOCK) {
-               (void) putchar('=');
-               return 1;
-       }
-       if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
-               (void) putchar('*');
-               return 1;
-       }
-       return 0;
+       if (f_longform)
+               for (cur = list; cur; cur = cur->fts_link)
+                       free(cur->fts_pointer);

 }
 
 /*
 }
 
 /*

- * error checks for dynamic memory;
- * comparison routines for various calls to qsort(3)
+ * Ordering for mastercmp:
+ * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories
+ * as larger than directories.  Within either group, use the sort function.
+ * All other levels use the sort function.  Error entries remain unsorted.

  */
  */

-
-int     namecmp(a, b)
-lsstruct *a, *b;
-{
-       return strcmp(a->name, b->name);
-}
-
-int     revnamecmp(a, b)
-lsstruct *a, *b;
-{
-       return strcmp(b->name, a->name);
-}
-
-int     modcmp(a, b)
-lsstruct *a, *b;
-{
-       return (a->lstat.st_mtime < b->lstat.st_mtime);
-}
-
-int     revmodcmp(a, b)
-lsstruct *a, *b;
-{
-       return (b->lstat.st_mtime < a->lstat.st_mtime);
-}
-
-int     acccmp(a, b)
-lsstruct *a, *b;
-{
-       return (a->lstat.st_atime < b->lstat.st_atime);
-}
-
-int     revacccmp(a, b)
-lsstruct *a, *b;
-{
-       return (b->lstat.st_atime < a->lstat.st_atime);
-}
-
-int     statcmp(a, b)
-lsstruct *a, *b;
-{
-       return (a->lstat.st_ctime < b->lstat.st_ctime);
-}
-
-int     revstatcmp(a, b)
-lsstruct *a, *b;
+static int
+mastercmp(a, b)
+       const FTSENT **a, **b;

 {
 {

-       return (b->lstat.st_ctime < a->lstat.st_ctime);
-}
-
-char   *malloc();
-
-char   *emalloc(size)
-unsigned size;
-{
-       register char *retval;
-
-       if ((retval = malloc(size)) == NULL) {
-               perror("Can't find memory");
-               exit(1);
-       }
-       return retval;
+       int a_info, b_info;
+
+       a_info = (*a)->fts_info;
+       if (a_info == FTS_ERR)
+               return (0);
+       b_info = (*b)->fts_info;
+       if (b_info == FTS_ERR)
+               return (0);
+
+       if (a_info == FTS_NS || b_info == FTS_NS)
+               return (namecmp(*a, *b));
+
+       if (a_info == b_info)
+               return (sortfcn(*a, *b));
+
+       if ((*a)->fts_level == FTS_ROOTLEVEL)
+               if (a_info == FTS_D)
+                       return (1);
+               else if (b_info == FTS_D)
+                       return (-1);
+               else
+                       return (sortfcn(*a, *b));
+       else
+               return (sortfcn(*a, *b));

 }
 }