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whereis.c

/*-
 * Copyright (c) 1980 The Regents of the University of California.
 * 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.
 */

/* *:aeb */

/* 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL>
 * - added Native Language Support
 */

#include <sys/param.h>
#include <sys/dir.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "nls.h"

void zerof(void);
void getlist(int *, char ***, char ***, int *);
void lookup(char *);
void looksrc(char *);
void lookbin(char *);
void lookman(char *);
void findv(char **, int, char *);
void find(char **, char *);
void findin(char *, char *);
int itsit(char *, char *);

static char *bindirs[] = {
   "/bin",
   "/usr/bin",
   "/sbin",
   "/usr/sbin",
   "/etc",
   "/usr/etc",
   "/lib",
   "/usr/lib",
   "/usr/games",
   "/usr/games/bin",
   "/usr/games/lib",
   "/usr/emacs/etc",
   "/usr/lib/emacs/*/etc",
   "/usr/TeX/bin",
   "/usr/tex/bin",
   "/usr/interviews/bin/LINUX",
   
   "/usr/X11R6/bin",
   "/usr/X386/bin",
   "/usr/bin/X11",
   "/usr/X11/bin",
   "/usr/X11R5/bin",

   "/usr/local/bin",
   "/usr/local/sbin",
   "/usr/local/etc",
   "/usr/local/lib",
   "/usr/local/games",
   "/usr/local/games/bin",
   "/usr/local/emacs/etc",
   "/usr/local/TeX/bin",
   "/usr/local/tex/bin",
   "/usr/local/bin/X11",

   "/usr/contrib",
   "/usr/hosts",
   "/usr/include",

   "/usr/g++-include",

   "/usr/ucb",
   "/usr/old",
   "/usr/new",
   "/usr/local",
   "/usr/libexec",
   "/usr/share",

   "/opt/*/bin",

      0
};

static char *mandirs[] = {
      "/usr/man/*",
      "/usr/share/man/*",
      "/usr/X386/man/*",
      "/usr/X11/man/*",
      "/usr/TeX/man/*",
      "/usr/interviews/man/mann",
      0
};

static char *srcdirs[]  = {
      "/usr/src/*",
      "/usr/src/lib/libc/*",
      "/usr/src/lib/libc/net/*",
      "/usr/src/ucb/pascal",
      "/usr/src/ucb/pascal/utilities",
      "/usr/src/undoc",
      0
};

char  sflag = 1;
char  bflag = 1;
char  mflag = 1;
char  **Sflag;
int   Scnt;
char  **Bflag;
int   Bcnt;
char  **Mflag;
int   Mcnt;
char  uflag;
/*
 * whereis name
 * look for source, documentation and binaries
 */
int
main(int argc, char **argv) {
      setlocale(LC_ALL, "");
      bindtextdomain(PACKAGE, LOCALEDIR);
      textdomain(PACKAGE);
      

      argc--, argv++;
      if (argc == 0) {
usage:
            fprintf(stderr, _("whereis [ -sbmu ] [ -SBM dir ... -f ] name...\n"));
            exit(1);
      }
      do
            if (argv[0][0] == '-') {
                  register char *cp = argv[0] + 1;
                  while (*cp) switch (*cp++) {

                  case 'f':
                        break;

                  case 'S':
                        getlist(&argc, &argv, &Sflag, &Scnt);
                        break;

                  case 'B':
                        getlist(&argc, &argv, &Bflag, &Bcnt);
                        break;

                  case 'M':
                        getlist(&argc, &argv, &Mflag, &Mcnt);
                        break;

                  case 's':
                        zerof();
                        sflag++;
                        continue;

                  case 'u':
                        uflag++;
                        continue;

                  case 'b':
                        zerof();
                        bflag++;
                        continue;

                  case 'm':
                        zerof();
                        mflag++;
                        continue;

                  default:
                        goto usage;
                  }
                  argv++;
            } else
                  lookup(*argv++);
      while (--argc > 0);
      return 0;
}

void
getlist(int *argcp, char ***argvp, char ***flagp, int *cntp) {
      (*argvp)++;
      *flagp = *argvp;
      *cntp = 0;
      for ((*argcp)--; *argcp > 0 && (*argvp)[0][0] != '-'; (*argcp)--)
            (*cntp)++, (*argvp)++;
      (*argcp)++;
      (*argvp)--;
}


void
zerof()
{
      if (sflag && bflag && mflag)
            sflag = bflag = mflag = 0;
}

int   count;
int   print;

void
lookup(char *cp) {
      register char *dp;

      for (dp = cp; *dp; dp++)
            continue;
      for (; dp > cp; dp--) {
            if (*dp == '.') {
                  *dp = 0;
                  break;
            }
      }
      for (dp = cp; *dp; dp++)
            if (*dp == '/')
                  cp = dp + 1;
      if (uflag) {
            print = 0;
            count = 0;
      } else
            print = 1;
again:
      if (print)
            printf("%s:", cp);
      if (sflag) {
            looksrc(cp);
            if (uflag && print == 0 && count != 1) {
                  print = 1;
                  goto again;
            }
      }
      count = 0;
      if (bflag) {
            lookbin(cp);
            if (uflag && print == 0 && count != 1) {
                  print = 1;
                  goto again;
            }
      }
      count = 0;
      if (mflag) {
            lookman(cp);
            if (uflag && print == 0 && count != 1) {
                  print = 1;
                  goto again;
            }
      }
      if (print)
            printf("\n");
}

void
looksrc(char *cp) {
      if (Sflag == 0) {
            find(srcdirs, cp);
      } else
            findv(Sflag, Scnt, cp);
}

void
lookbin(char *cp) {
      if (Bflag == 0)
            find(bindirs, cp);
      else
            findv(Bflag, Bcnt, cp);
}

void
lookman(char *cp) {
      if (Mflag == 0) {
            find(mandirs, cp);
      } else
            findv(Mflag, Mcnt, cp);
}

void
findv(char **dirv, int dirc, char *cp) {
      while (dirc > 0)
            findin(*dirv++, cp), dirc--;
}

void
find(char **dirs, char *cp) {
      while (*dirs)
            findin(*dirs++, cp);
}

void
findin(char *dir, char *cp) {
      DIR *dirp;
      struct direct *dp;
      char *d, *dd;
      int l;
      char dirbuf[1024];
      struct stat statbuf;

      dd = index(dir, '*');
      if (!dd)
            goto noglob;

      l = strlen(dir);
      if (l < sizeof(dirbuf)) {     /* refuse excessively long names */
            strcpy (dirbuf, dir);
            d = index(dirbuf, '*');
            *d = 0;
            dirp = opendir(dirbuf);
            if (dirp == NULL)
                  return;
            while ((dp = readdir(dirp)) != NULL) {
                  if (!strcmp(dp->d_name, ".") ||
                      !strcmp(dp->d_name, ".."))
                        continue;
                  if (strlen(dp->d_name) + l > sizeof(dirbuf))
                        continue;
                  sprintf(d, "%s", dp->d_name);
                  if (stat(dirbuf, &statbuf))
                        continue;
                  if (!S_ISDIR(statbuf.st_mode))
                        continue;
                  strcat(d, dd+1);
                  findin(dirbuf, cp);
            }
            closedir(dirp);
      }
      return;

    noglob:
      dirp = opendir(dir);
      if (dirp == NULL)
            return;
      while ((dp = readdir(dirp)) != NULL) {
            if (itsit(cp, dp->d_name)) {
                  count++;
                  if (print)
                        printf(" %s/%s", dir, dp->d_name);
            }
      }
      closedir(dirp);
}

int
itsit(char *cp, char *dp) {
      int i = strlen(dp);

      if (dp[0] == 's' && dp[1] == '.' && itsit(cp, dp+2))
            return (1);
      if (!strcmp(dp+i-2, ".Z"))
            i -= 2;
      else if (!strcmp(dp+i-3, ".gz"))
            i -= 3;
      else if (!strcmp(dp+i-4, ".bz2"))
            i -= 4;
      while (*cp && *dp && *cp == *dp)
            cp++, dp++, i--;
      if (*cp == 0 && *dp == 0)
            return (1);
      while (isdigit(*dp))
            dp++;
      if (*cp == 0 && *dp++ == '.') {
            --i;
            while (i > 0 && *dp)
                  if (--i, *dp++ == '.')
                        return (*dp++ == 'C' && *dp++ == 0);
            return (1);
      }
      return (0);
}

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