Fresh Fish 8/FreshFishVol8-CD1.bin/gnu/src/amiga/binutils-1.8.x-src.lha/binutils-1.8.x/ranlib.c

C/C++ Source or Header | 1994-02-05 | 4.9 KB | 234 lines

/* Dummy ranlib program for GNU.
   All it does is `ar rs LIBRARY' for each library specified.

   Copyright (C) 1989 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.  */

#include <ar.h>
#include <sys/types.h>
#include <sys/file.h>
#include <stdio.h>
#include <fcntl.h>
#include "getopt.h"
#include "signame.h"

#ifndef L_SET
#define L_SET 0
#define L_INCR 1
#endif

#ifndef X_OK
#define X_OK 1
#endif

#ifdef USG
#define bzero(s, n) (memset ((s), 0, (n)))
#define gettimeofday(TV,TZ) (time (TV))
#define seconds(TV) TV
long time();
#else
#define seconds(TV) TV.tv_sec
#include <sys/time.h>
#endif

#ifdef USG
#define    vfork    fork
#endif

void touch_symdefs ();

/* The makefile generates a -D switch to define AR_PROG
   as the location of the GNU AR program.  */

char *prog = AR_PROG;
char *prog_pref = "/gnu/bin/ar";

int
main (argc, argv)
     int argc;
     char **argv;
{
  static int touch = 0, verbose = 0;
  int lose = 0;
  static char short_opts[] = "tv";
  static struct option long_opts[] =
    {
      { "touch", 0, &touch, 0 },
      { "verbose", 0, &verbose, 0 },
      { 0, 0, 0, 0 }
    };
  extern int optind;
  register int c;
  char *args;
  int junk;
  char *ar_program;

  while ((c = getopt_long (argc, argv, short_opts, long_opts, &junk)) != EOF)
    switch (c)
      {
      case 't':
    touch = 1;
    break;

      case 'v':
    verbose = 1;
    break;

      default:
    lose = 1;
    break;
      }

  if (lose)
    {
      fprintf (stderr, "Usage: %s [-tv] [+touch] [+verbose] file...\n",
           argv[0]);
      exit (1);
    }

  if (access (prog_pref, X_OK) == 0)
    ar_program = prog_pref;
  else
    ar_program = prog;

  args = verbose ? "rsv" : "rs";

  if (touch)
    touch_symdefs (argc - optind, argv + optind);
  else
    {
      register int i;
      for (i = optind; i < argc; ++i)
    {
      int pid;

      if (verbose)
        printf ("%s %s %s\n", ar_program, args, argv[i]);

      fflush (stdout);
      fflush (stderr);

      pid = vfork ();
      if (pid < 0)
        {
          fprintf (stderr, "ranlib: can not ");
          perror ("vfork");
        }
      else if (pid == 0)
        {
          /* Child side.  */
          execl (ar_program, ar_program, args, argv[i], 0);
          fprintf (stderr, "ranlib: can not run ");
          perror (ar_program);
          exit (1);
        }
      else
        {
          /* Parent side.  */
          int status;
          if (wait (&status) != pid)
        {
          fprintf (stderr, "ranlib: interrupted during ");
          perror ("wait");
        }
          if ((status & 0x7f) != 0)
        {
          psignal (status & 0x7f, ar_program);
          exit (1);
        }
          else if (((status & 0xff00) >> 8) != 0)
        exit ((status & 0xff00) >> 8);
        }
    }
    }

  exit (0);
}

/* Take a list of archive files to "touch".  This subroutine will then
   find the first symdef member in them and update the date to the
   current one.  */

void
touch_symdefs (largc, largv)
     int largc;
     char **largv;
{
#ifdef USG
  long tv;
#else
  struct timeval tv;
  struct timezone tz;
#endif

  struct ar_hdr archive_header;
  int i, rr;

  gettimeofday (&tv, &tz);

  while (largc--)
    {
      int fd = open (*largv, O_RDWR);

      if (fd < 0)
    {
      fprintf (stderr, "ranlib: can not open `%s' for ", *largv);
      perror ("read/write");
      largv++;
      continue;
    }

      lseek (fd, SARMAG, L_SET);

      rr = read (fd, &archive_header, sizeof (archive_header));

      /* In the general case this loop would be sped up by buffering,
         but in almost all cases the symdef will be the first member, so
     I'm not going to bother.  */

      while (rr == sizeof (archive_header))
    {
      if (!strncmp ("__.SYMDEF", archive_header.ar_name,
            sizeof ("__.SYMDEF") - 1))
        {
          bzero ((char *) archive_header.ar_date,
             sizeof (archive_header.ar_date));

          sprintf (archive_header.ar_date, "%d", seconds (tv));

          for (i = 0; i < sizeof archive_header.ar_date; i++)
        if (archive_header.ar_date[i] == '\0')
          archive_header.ar_date[i] = ' ';

          lseek (fd, - rr, L_INCR);
          write (fd, &archive_header, sizeof (archive_header));
          close (fd);
          break;
        }

      lseek (fd, atoi (archive_header.ar_size), L_INCR);
      rr = read (fd, &archive_header, sizeof (archive_header));
    }

      if (rr != sizeof (archive_header))
    /* We reached the end of the file.  */
    fprintf (stderr, "ranlib: can not find `__.SYMDEF' member in `%s'\n",
         *largv);

      largv++;
    }
}