801 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			C
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			801 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			C
		
	
	
		
			Executable File
		
	
	
	
	
/*
 | 
						|
 * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
 | 
						|
 * See the copyright notice in the ACK home directory, in the file "Copyright".
 | 
						|
 */
 | 
						|
/* ar - archiver		Author: Michiel Huisjes */
 | 
						|
/* Made into arch/aal by Ceriel Jacobs
 | 
						|
 */
 | 
						|
 | 
						|
static char RcsId[] = "$Header$";
 | 
						|
 | 
						|
/*
 | 
						|
 * Usage: [arch|aal] [adprtvx] archive [file] ...
 | 
						|
 *	  v: verbose
 | 
						|
 *	  x: extract
 | 
						|
 *	  a: append
 | 
						|
 *	  r: replace (append when not in archive)
 | 
						|
 *	  d: delete
 | 
						|
 *	  t: print contents of archive
 | 
						|
 *	  p: print named files
 | 
						|
 *	  l: temporaries in current directory instead of /usr/tmp
 | 
						|
 *	  c: don't give "create" message
 | 
						|
 *	  u: replace only if dated later than member in archive
 | 
						|
#ifdef DISTRIBUTION
 | 
						|
 *	  D: make distribution: use distr_time, uid=2, gid=2, mode=0644
 | 
						|
#endif
 | 
						|
 */
 | 
						|
 | 
						|
#include <sys/types.h>
 | 
						|
#include <sys/stat.h>
 | 
						|
#ifndef	S_IREAD
 | 
						|
#define	S_IREAD		S_IRUSR
 | 
						|
#endif
 | 
						|
#ifndef	S_IWRITE
 | 
						|
#define	S_IWRITE	S_IWUSR
 | 
						|
#endif
 | 
						|
#ifndef	S_IEXEC
 | 
						|
#define	S_IEXEC		S_IXUSR
 | 
						|
#endif
 | 
						|
#include <signal.h>
 | 
						|
#include <arch.h>
 | 
						|
#ifdef AAL
 | 
						|
#include <ranlib.h>
 | 
						|
#include <out.h>
 | 
						|
#define MAGIC_NUMBER	AALMAG
 | 
						|
long	offset;
 | 
						|
struct ranlib *tab;
 | 
						|
unsigned int	tnum = 0;
 | 
						|
char	*tstrtab;
 | 
						|
unsigned int	tssiz = 0;
 | 
						|
char	*malloc(), *realloc(), *strcpy(), *strncpy();
 | 
						|
long	time();
 | 
						|
unsigned int tabsz, strtabsz;
 | 
						|
#else
 | 
						|
#define MAGIC_NUMBER	ARMAG
 | 
						|
#endif
 | 
						|
long	lseek();
 | 
						|
 | 
						|
#define odd(nr)		(nr & 01)
 | 
						|
#define even(nr)	(odd(nr) ? nr + 1 : nr)
 | 
						|
 | 
						|
typedef char BOOL;
 | 
						|
#define FALSE		0
 | 
						|
#define TRUE		1
 | 
						|
 | 
						|
#define READ		0
 | 
						|
#define APPEND		2
 | 
						|
#define CREATE		1
 | 
						|
 | 
						|
#define MEMBER		struct ar_hdr
 | 
						|
 | 
						|
#define NIL_PTR		((char *) 0)
 | 
						|
#define NIL_MEM		((MEMBER *) 0)
 | 
						|
#define NIL_LONG	((long *) 0)
 | 
						|
 | 
						|
#define IO_SIZE		(10 * 1024)
 | 
						|
 | 
						|
#define equal(str1, str2)	(!strncmp((str1), (str2), 14))
 | 
						|
#ifndef S_ISDIR
 | 
						|
#define S_ISDIR(m)	(m & S_IFDIR)		/* is a directory */
 | 
						|
#endif
 | 
						|
 | 
						|
BOOL verbose;
 | 
						|
BOOL app_fl;
 | 
						|
BOOL ex_fl;
 | 
						|
BOOL show_fl;
 | 
						|
BOOL pr_fl;
 | 
						|
BOOL rep_fl;
 | 
						|
BOOL del_fl;
 | 
						|
BOOL nocr_fl;
 | 
						|
BOOL local_fl;
 | 
						|
BOOL update_fl;
 | 
						|
#ifdef DISTRIBUTION
 | 
						|
BOOL distr_fl;
 | 
						|
long distr_time;
 | 
						|
#endif
 | 
						|
 | 
						|
int ar_fd;
 | 
						|
 | 
						|
char io_buffer[IO_SIZE];
 | 
						|
 | 
						|
char *progname;
 | 
						|
 | 
						|
char temp_buf[32];
 | 
						|
char *temp_arch = &temp_buf[0];
 | 
						|
extern char *mktemp();
 | 
						|
extern char *ctime();
 | 
						|
 | 
						|
usage()
 | 
						|
{
 | 
						|
	error(TRUE, "usage: %s %s archive [file] ...\n",
 | 
						|
		progname,
 | 
						|
#ifdef AAL
 | 
						|
		"[acdrtxvlu]"
 | 
						|
#else
 | 
						|
		"[acdprtxvlu]"
 | 
						|
#endif
 | 
						|
		);
 | 
						|
}
 | 
						|
 | 
						|
/*VARARGS2*/
 | 
						|
error(quit, str1, str2, str3, str4)
 | 
						|
BOOL quit;
 | 
						|
char *str1, *str2, *str3, *str4;
 | 
						|
{
 | 
						|
	char errbuf[256];
 | 
						|
 | 
						|
	sprint(errbuf, str1, str2, str3, str4);
 | 
						|
	write(2, errbuf, strlen(errbuf));
 | 
						|
  	if (quit) {
 | 
						|
		unlink(temp_arch);
 | 
						|
		_exit(1);
 | 
						|
  	}
 | 
						|
}
 | 
						|
 | 
						|
char *basename(path)
 | 
						|
char *path;
 | 
						|
{
 | 
						|
  register char *ptr = path;
 | 
						|
  register char *last = NIL_PTR;
 | 
						|
 | 
						|
  while (*ptr != '\0') {
 | 
						|
	if (*ptr == '/')
 | 
						|
		last = ptr;
 | 
						|
	ptr++;
 | 
						|
  }
 | 
						|
  if (last == NIL_PTR)
 | 
						|
	return path;
 | 
						|
  if (*(last + 1) == '\0') {
 | 
						|
	*last = '\0';
 | 
						|
	return basename(path);
 | 
						|
  }
 | 
						|
  return last + 1;
 | 
						|
}
 | 
						|
 | 
						|
extern unsigned int rd_unsigned2();
 | 
						|
 | 
						|
open_archive(name, mode)
 | 
						|
register char *name;
 | 
						|
register int mode;
 | 
						|
{
 | 
						|
  unsigned short magic = 0;
 | 
						|
  int fd;
 | 
						|
 | 
						|
  if (mode == CREATE) {
 | 
						|
	if ((fd = creat(name, 0666)) < 0)
 | 
						|
		error(TRUE, "cannot creat %s\n", name);
 | 
						|
	magic = MAGIC_NUMBER;
 | 
						|
	wr_int2(fd, magic);
 | 
						|
	return fd;
 | 
						|
  }
 | 
						|
 | 
						|
  if ((fd = open(name, mode)) < 0) {
 | 
						|
	if (mode == APPEND) {
 | 
						|
		close(open_archive(name, CREATE));
 | 
						|
		if (!nocr_fl) error(FALSE, "%s: creating %s\n", progname, name);
 | 
						|
		return open_archive(name, APPEND);
 | 
						|
	}
 | 
						|
	error(TRUE, "cannot open %s\n", name);
 | 
						|
  }
 | 
						|
  lseek(fd, 0L, 0);
 | 
						|
  magic = rd_unsigned2(fd);
 | 
						|
  if (magic != AALMAG && magic != ARMAG)
 | 
						|
	error(TRUE, "%s is not in ar format\n", name);
 | 
						|
  
 | 
						|
  return fd;
 | 
						|
}
 | 
						|
 | 
						|
#if __STDC__
 | 
						|
void catch(int sig)
 | 
						|
#else
 | 
						|
catch()
 | 
						|
#endif
 | 
						|
{
 | 
						|
	unlink(temp_arch);
 | 
						|
	_exit (2);
 | 
						|
}
 | 
						|
 | 
						|
main(argc, argv)
 | 
						|
int argc;
 | 
						|
char *argv[];
 | 
						|
{
 | 
						|
  register char *ptr;
 | 
						|
  int needs_arg = 0;
 | 
						|
 | 
						|
  progname = argv[0];
 | 
						|
 | 
						|
  if (argc < 3)
 | 
						|
	usage();
 | 
						|
  
 | 
						|
  for (ptr = argv[1]; *ptr; ptr++) {
 | 
						|
	switch (*ptr) {
 | 
						|
		case 't' :
 | 
						|
			show_fl = TRUE;
 | 
						|
			break;
 | 
						|
		case 'v' :
 | 
						|
			verbose = TRUE;
 | 
						|
			break;
 | 
						|
		case 'x' :
 | 
						|
			ex_fl = TRUE;
 | 
						|
			break;
 | 
						|
		case 'a' :
 | 
						|
			needs_arg = 1;
 | 
						|
			app_fl = TRUE;
 | 
						|
			break;
 | 
						|
		case 'c' :
 | 
						|
			nocr_fl = TRUE;
 | 
						|
			break;
 | 
						|
#ifndef AAL
 | 
						|
		case 'p' :
 | 
						|
			needs_arg = 1;
 | 
						|
			pr_fl = TRUE;
 | 
						|
			break;
 | 
						|
#endif
 | 
						|
		case 'd' :
 | 
						|
			needs_arg = 1;
 | 
						|
			del_fl = TRUE;
 | 
						|
			break;
 | 
						|
		case 'r' :
 | 
						|
			needs_arg = 1;
 | 
						|
			rep_fl = TRUE;
 | 
						|
			break;
 | 
						|
		case 'l' :
 | 
						|
			local_fl = TRUE;
 | 
						|
			break;
 | 
						|
		case 'u' :
 | 
						|
			update_fl = TRUE;
 | 
						|
			break;
 | 
						|
#ifdef DISTRIBUTION
 | 
						|
		case 'D' :
 | 
						|
			distr_fl = TRUE;
 | 
						|
			break;
 | 
						|
#endif
 | 
						|
		default :
 | 
						|
			usage();
 | 
						|
	}
 | 
						|
  }
 | 
						|
 | 
						|
  if (needs_arg && argc <= 3)
 | 
						|
	usage();
 | 
						|
#ifdef DISTRIBUTION
 | 
						|
  if (distr_fl) {
 | 
						|
	struct stat statbuf;
 | 
						|
 | 
						|
	stat(progname, &statbuf);
 | 
						|
	distr_time = statbuf.st_mtime;
 | 
						|
  }
 | 
						|
#endif
 | 
						|
  if (local_fl) strcpy(temp_arch, "ar.XXXXXX");
 | 
						|
  else	strcpy(temp_arch, "/usr/tmp/ar.XXXXXX");
 | 
						|
 | 
						|
  if (app_fl + ex_fl + del_fl + rep_fl + show_fl + pr_fl != 1)
 | 
						|
	usage();
 | 
						|
 | 
						|
  if (update_fl && !rep_fl)
 | 
						|
	usage();
 | 
						|
 | 
						|
  if (rep_fl || del_fl
 | 
						|
#ifdef AAL
 | 
						|
	|| app_fl
 | 
						|
#endif
 | 
						|
     ) {
 | 
						|
	mktemp(temp_arch);
 | 
						|
  }
 | 
						|
#ifdef AAL
 | 
						|
  tab = (struct ranlib *) malloc(512 * sizeof(struct ranlib));
 | 
						|
  tstrtab = malloc(4096);
 | 
						|
  if (!tab || !tstrtab) error(TRUE,"Out of core\n");
 | 
						|
  tabsz = 512;
 | 
						|
  strtabsz = 4096;
 | 
						|
#endif
 | 
						|
 | 
						|
  signal(SIGINT, catch);
 | 
						|
  get(argc, argv);
 | 
						|
  
 | 
						|
  return 0;
 | 
						|
}
 | 
						|
 | 
						|
MEMBER *
 | 
						|
get_member()
 | 
						|
{
 | 
						|
  static MEMBER member;
 | 
						|
 | 
						|
again:
 | 
						|
  if (rd_arhdr(ar_fd, &member) == 0)
 | 
						|
	return NIL_MEM;
 | 
						|
  if (member.ar_size < 0) {
 | 
						|
	error(TRUE, "archive has member with negative size\n");
 | 
						|
  }
 | 
						|
#ifdef AAL
 | 
						|
  if (equal(SYMDEF, member.ar_name)) {
 | 
						|
	lseek(ar_fd, member.ar_size, 1);
 | 
						|
	goto again;
 | 
						|
  }
 | 
						|
#endif
 | 
						|
  return &member;
 | 
						|
}
 | 
						|
 | 
						|
char *get_mode();
 | 
						|
 | 
						|
get(argc, argv)
 | 
						|
int argc;
 | 
						|
register char *argv[];
 | 
						|
{
 | 
						|
  register MEMBER *member;
 | 
						|
  int i = 0;
 | 
						|
  int temp_fd, read_chars;
 | 
						|
 | 
						|
  ar_fd = open_archive(argv[2], (show_fl || pr_fl || ex_fl) ? READ : APPEND);
 | 
						|
  if (rep_fl || del_fl
 | 
						|
#ifdef AAL
 | 
						|
	|| app_fl
 | 
						|
#endif
 | 
						|
  )
 | 
						|
	temp_fd = open_archive(temp_arch, CREATE);
 | 
						|
  while ((member = get_member()) != NIL_MEM) {
 | 
						|
	if (argc > 3) {
 | 
						|
		for (i = 3; i < argc; i++) {
 | 
						|
			if (equal(basename(argv[i]), member->ar_name))
 | 
						|
				break;
 | 
						|
		}
 | 
						|
		if (i == argc || app_fl) {
 | 
						|
			if (rep_fl || del_fl
 | 
						|
#ifdef AAL
 | 
						|
				|| app_fl
 | 
						|
#endif
 | 
						|
			) {
 | 
						|
#ifdef AAL
 | 
						|
				if (i != argc) {
 | 
						|
					print("%s: already in archive\n", argv[i]);
 | 
						|
					argv[i] = "";
 | 
						|
				}
 | 
						|
#endif
 | 
						|
				wr_arhdr(temp_fd, member);
 | 
						|
				copy_member(member, ar_fd, temp_fd, 0);
 | 
						|
			}
 | 
						|
			else {
 | 
						|
#ifndef AAL
 | 
						|
				if (app_fl && i != argc) {
 | 
						|
					print("%s: already in archive\n", argv[i]);
 | 
						|
					argv[i] = "";
 | 
						|
				}
 | 
						|
#endif
 | 
						|
				lseek(ar_fd, even(member->ar_size),1);
 | 
						|
			}
 | 
						|
			continue;
 | 
						|
		}
 | 
						|
	}
 | 
						|
	if (ex_fl || pr_fl)
 | 
						|
		extract(member);
 | 
						|
	else {
 | 
						|
		if (rep_fl) {
 | 
						|
			int isold = 0;
 | 
						|
			if(update_fl) {
 | 
						|
				struct stat status;
 | 
						|
				if (stat(argv[i], &status) >= 0) {
 | 
						|
					if(status.st_mtime <= member->ar_date)
 | 
						|
						isold = 1;
 | 
						|
				}
 | 
						|
			}
 | 
						|
			if(!isold)
 | 
						|
				add(argv[i], temp_fd, "r - %s\n");
 | 
						|
			else {
 | 
						|
				wr_arhdr(temp_fd, member);
 | 
						|
				copy_member(member, ar_fd, temp_fd, 0);
 | 
						|
				if(verbose)
 | 
						|
					show("r - %s (old)\n", member->ar_name);
 | 
						|
			}
 | 
						|
		}
 | 
						|
		else if (show_fl) {
 | 
						|
			char buf[sizeof(member->ar_name) + 2];
 | 
						|
			register char *p = buf, *q = member->ar_name;
 | 
						|
 | 
						|
			while (q <= &member->ar_name[sizeof(member->ar_name)-1] && *q) {
 | 
						|
				*p++ = *q++;
 | 
						|
			}
 | 
						|
			*p++ = '\n';
 | 
						|
			*p = '\0';
 | 
						|
			if (verbose) {
 | 
						|
				char *mode = get_mode(member->ar_mode);
 | 
						|
				char *date = ctime(&(member->ar_date));
 | 
						|
 | 
						|
				*(date + 16) = '\0';
 | 
						|
				*(date + 24) = '\0';
 | 
						|
 | 
						|
				print("%s%3u/%u%7ld %s %s %s",
 | 
						|
					mode,
 | 
						|
					(unsigned) (member->ar_uid & 0377),
 | 
						|
					(unsigned) (member->ar_gid & 0377),
 | 
						|
					member->ar_size,
 | 
						|
					date+4,
 | 
						|
					date+20,
 | 
						|
					buf);
 | 
						|
			}
 | 
						|
			else	print(buf);
 | 
						|
		}
 | 
						|
		else if (del_fl)
 | 
						|
			show("d - %s\n", member->ar_name);
 | 
						|
		lseek(ar_fd, even(member->ar_size), 1);
 | 
						|
	}
 | 
						|
	argv[i] = "";
 | 
						|
  }
 | 
						|
 | 
						|
  if (argc > 3) {
 | 
						|
	for (i = 3; i < argc; i++)
 | 
						|
		if (argv[i][0] != '\0') {
 | 
						|
#ifndef AAL
 | 
						|
			if (app_fl)
 | 
						|
				add(argv[i], ar_fd, "a - %s\n");
 | 
						|
			else
 | 
						|
#endif
 | 
						|
			if (rep_fl
 | 
						|
#ifdef AAL
 | 
						|
				|| app_fl
 | 
						|
#endif
 | 
						|
			)
 | 
						|
				add(argv[i], temp_fd, "a - %s\n");
 | 
						|
			else {
 | 
						|
				print("%s: not found\n", argv[i]);
 | 
						|
			}
 | 
						|
		}
 | 
						|
  }
 | 
						|
 | 
						|
  if (rep_fl || del_fl
 | 
						|
#ifdef AAL
 | 
						|
		|| app_fl
 | 
						|
#endif
 | 
						|
  ) {
 | 
						|
	signal(SIGINT, SIG_IGN);
 | 
						|
	close(ar_fd);
 | 
						|
	close(temp_fd);
 | 
						|
	ar_fd = open_archive(argv[2], CREATE);
 | 
						|
	temp_fd = open_archive(temp_arch, APPEND);
 | 
						|
#ifdef AAL
 | 
						|
	write_symdef();
 | 
						|
#endif
 | 
						|
	while ((read_chars = read(temp_fd, io_buffer, IO_SIZE)) > 0)
 | 
						|
		mwrite(ar_fd, io_buffer, read_chars);
 | 
						|
	close(temp_fd);
 | 
						|
	unlink(temp_arch);
 | 
						|
  }
 | 
						|
  close(ar_fd);
 | 
						|
}
 | 
						|
 | 
						|
add(name, fd, mess)
 | 
						|
char *name;
 | 
						|
int fd;
 | 
						|
char *mess;
 | 
						|
{
 | 
						|
  static MEMBER member;
 | 
						|
  register int read_chars;
 | 
						|
  struct stat status;
 | 
						|
  int src_fd;
 | 
						|
 | 
						|
  if (stat(name, &status) < 0) {
 | 
						|
	error(FALSE, "cannot find %s\n", name);
 | 
						|
	return;
 | 
						|
  }
 | 
						|
  else if (S_ISDIR(status.st_mode)) {
 | 
						|
	error(FALSE, "%s is a directory (ignored)\n", name);
 | 
						|
	return;
 | 
						|
  }
 | 
						|
  else if ((src_fd = open(name, 0)) < 0) {
 | 
						|
	error(FALSE, "cannot open %s\n", name);
 | 
						|
	return;
 | 
						|
  }
 | 
						|
 | 
						|
  strncpy (member.ar_name, basename (name), sizeof(member.ar_name));
 | 
						|
  member.ar_uid = status.st_uid;
 | 
						|
  member.ar_gid = status.st_gid;
 | 
						|
  member.ar_mode = status.st_mode;
 | 
						|
  member.ar_date = status.st_mtime;
 | 
						|
  member.ar_size = status.st_size;
 | 
						|
#ifdef DISTRIBUTION
 | 
						|
  if (distr_fl) {
 | 
						|
	member.ar_uid = 2;
 | 
						|
	member.ar_gid = 2;
 | 
						|
	member.ar_mode = 0644;
 | 
						|
	member.ar_date = distr_time;
 | 
						|
  }
 | 
						|
#endif
 | 
						|
  wr_arhdr(fd, &member);
 | 
						|
#ifdef AAL
 | 
						|
  do_object(src_fd, member.ar_size);
 | 
						|
  lseek(src_fd, 0L, 0);
 | 
						|
  offset += AR_TOTAL + even(member.ar_size);
 | 
						|
#endif
 | 
						|
  while (status.st_size > 0) {
 | 
						|
	int x = IO_SIZE;
 | 
						|
 | 
						|
	read_chars = x;
 | 
						|
	if (status.st_size < x) {
 | 
						|
		x = status.st_size;
 | 
						|
		read_chars = x;
 | 
						|
		status.st_size = 0;
 | 
						|
		x = even(x);
 | 
						|
	}
 | 
						|
	else	status.st_size -= x;
 | 
						|
  	if (read(src_fd, io_buffer, read_chars) != read_chars) {
 | 
						|
		error(FALSE,"%s seems to shrink\n", name);
 | 
						|
		break;
 | 
						|
	}
 | 
						|
	mwrite(fd, io_buffer, x);
 | 
						|
  }
 | 
						|
 | 
						|
  if (verbose)
 | 
						|
	show(mess, member.ar_name);
 | 
						|
  close(src_fd);
 | 
						|
}
 | 
						|
 | 
						|
extract(member)
 | 
						|
register MEMBER *member;
 | 
						|
{
 | 
						|
  int fd = 1;
 | 
						|
  char buf[sizeof(member->ar_name) + 1];
 | 
						|
 | 
						|
  strncpy(buf, member->ar_name, sizeof(member->ar_name));
 | 
						|
  buf[sizeof(member->ar_name)] = 0;
 | 
						|
  if (pr_fl == FALSE && (fd = creat(buf, 0666)) < 0) {
 | 
						|
	error(FALSE, "cannot create %s\n", buf);
 | 
						|
	fd = -1;
 | 
						|
  }
 | 
						|
 | 
						|
  if (verbose) {
 | 
						|
	if (pr_fl == FALSE) show("x - %s\n", buf);
 | 
						|
	else show("\n<%s>\n\n", buf);
 | 
						|
  }
 | 
						|
 | 
						|
  copy_member(member, ar_fd, fd, 1);
 | 
						|
 | 
						|
  if (fd >= 0 && fd != 1)
 | 
						|
  	close(fd);
 | 
						|
  if (pr_fl == FALSE) chmod(buf, member->ar_mode);
 | 
						|
}
 | 
						|
 | 
						|
copy_member(member, from, to, extracting)
 | 
						|
register MEMBER *member;
 | 
						|
int from, to;
 | 
						|
{
 | 
						|
  register int rest;
 | 
						|
  long mem_size = member->ar_size;
 | 
						|
  BOOL is_odd = odd(mem_size) ? TRUE : FALSE;
 | 
						|
 | 
						|
#ifdef AAL
 | 
						|
  if (! extracting) {
 | 
						|
  	long pos = lseek(from, 0L, 1);
 | 
						|
 | 
						|
	do_object(from, mem_size);
 | 
						|
	offset += AR_TOTAL + even(mem_size);
 | 
						|
  	lseek(from, pos, 0);
 | 
						|
  }
 | 
						|
#endif
 | 
						|
  do {
 | 
						|
	rest = mem_size > (long) IO_SIZE ? IO_SIZE : (int) mem_size;
 | 
						|
	if (read(from, io_buffer, rest) != rest) {
 | 
						|
		char buf[sizeof(member->ar_name) + 1];
 | 
						|
 | 
						|
		strncpy(buf, member->ar_name, sizeof(member->ar_name));
 | 
						|
		buf[sizeof(member->ar_name)] = 0;
 | 
						|
		error(TRUE, "read error on %s\n", buf);
 | 
						|
	}
 | 
						|
	if (to >= 0) mwrite(to, io_buffer, rest);
 | 
						|
	mem_size -= (long) rest;
 | 
						|
  } while (mem_size > 0L);
 | 
						|
 | 
						|
  if (is_odd) {
 | 
						|
	lseek(from, 1L, 1);
 | 
						|
	if (to >= 0 && ! extracting)
 | 
						|
		lseek(to, 1L, 1);
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
char *
 | 
						|
get_mode(mode)
 | 
						|
register int mode;
 | 
						|
{
 | 
						|
  static char mode_buf[11];
 | 
						|
  register int tmp = mode;
 | 
						|
  int i;
 | 
						|
 | 
						|
  mode_buf[9] = ' ';
 | 
						|
  for (i = 0; i < 3; i++) {
 | 
						|
	mode_buf[i * 3] = (tmp & S_IREAD) ? 'r' : '-';
 | 
						|
	mode_buf[i * 3 + 1] = (tmp & S_IWRITE) ? 'w' : '-';
 | 
						|
	mode_buf[i * 3 + 2] = (tmp & S_IEXEC) ? 'x' : '-';
 | 
						|
	tmp <<= 3;
 | 
						|
  }
 | 
						|
  if (mode & S_ISUID)
 | 
						|
	mode_buf[2] = 's';
 | 
						|
  if (mode & S_ISGID)
 | 
						|
	mode_buf[5] = 's';
 | 
						|
  return mode_buf;
 | 
						|
}
 | 
						|
 | 
						|
wr_fatal()
 | 
						|
{
 | 
						|
	error(TRUE, "write error\n");
 | 
						|
}
 | 
						|
 | 
						|
rd_fatal()
 | 
						|
{
 | 
						|
	error(TRUE, "read error\n");
 | 
						|
}
 | 
						|
 | 
						|
mwrite(fd, address, bytes)
 | 
						|
int fd;
 | 
						|
register char *address;
 | 
						|
register int bytes;
 | 
						|
{
 | 
						|
  if (write(fd, address, bytes) != bytes)
 | 
						|
	error(TRUE, "write error\n");
 | 
						|
}
 | 
						|
 | 
						|
show(s, name)
 | 
						|
char *s, *name;
 | 
						|
{
 | 
						|
  MEMBER x;
 | 
						|
  char buf[sizeof(x.ar_name)+1];
 | 
						|
  register char *p = buf, *q = name;
 | 
						|
 | 
						|
  while (q <= &name[sizeof(x.ar_name)-1] && *q) *p++ = *q++;
 | 
						|
  *p++ = '\0';
 | 
						|
  print(s, buf);
 | 
						|
}
 | 
						|
 | 
						|
#ifdef AAL
 | 
						|
/*
 | 
						|
 * Write out the ranlib table: first 4 bytes telling how many ranlib structs
 | 
						|
 * there are, followed by the ranlib structs,
 | 
						|
 * then 4 bytes giving the size of the string table, followed by the string
 | 
						|
 * table itself.
 | 
						|
 */
 | 
						|
write_symdef()
 | 
						|
{
 | 
						|
	register struct ranlib	*ran;
 | 
						|
	register int	i;
 | 
						|
	register long	delta;
 | 
						|
	MEMBER	arbuf;
 | 
						|
 | 
						|
	if (odd(tssiz))
 | 
						|
		tstrtab[tssiz++] = '\0';
 | 
						|
	for (i = 0; i < sizeof(arbuf.ar_name); i++)
 | 
						|
		arbuf.ar_name[i] = '\0';
 | 
						|
	strcpy(arbuf.ar_name, SYMDEF);
 | 
						|
	arbuf.ar_size = 4 + 2 * 4 * (long)tnum + 4 + (long)tssiz;
 | 
						|
	time(&arbuf.ar_date);
 | 
						|
	arbuf.ar_uid = getuid();
 | 
						|
	arbuf.ar_gid = getgid();
 | 
						|
	arbuf.ar_mode = 0444;
 | 
						|
#ifdef DISTRIBUTION
 | 
						|
	if (distr_fl) {
 | 
						|
		arbuf.ar_uid = 2;
 | 
						|
		arbuf.ar_gid = 2;
 | 
						|
		arbuf.ar_date = distr_time;
 | 
						|
	}
 | 
						|
#endif
 | 
						|
	wr_arhdr(ar_fd,&arbuf);
 | 
						|
	wr_long(ar_fd, (long) tnum);
 | 
						|
	/*
 | 
						|
	 * Account for the space occupied by the magic number
 | 
						|
	 * and the ranlib table.
 | 
						|
	 */
 | 
						|
	delta = 2 + AR_TOTAL + arbuf.ar_size;
 | 
						|
	for (ran = tab; ran < &tab[tnum]; ran++) {
 | 
						|
		ran->ran_pos += delta;
 | 
						|
	}
 | 
						|
 | 
						|
	wr_ranlib(ar_fd, tab, (long) tnum);
 | 
						|
	wr_long(ar_fd, (long) tssiz);
 | 
						|
	wr_bytes(ar_fd, tstrtab, (long) tssiz);
 | 
						|
}
 | 
						|
 | 
						|
/*
 | 
						|
 * Return whether the bytes in `buf' form a good object header. 
 | 
						|
 * The header is put in `headp'.
 | 
						|
 */
 | 
						|
int
 | 
						|
is_outhead(headp)
 | 
						|
	register struct outhead	*headp;
 | 
						|
{
 | 
						|
 | 
						|
	return !BADMAGIC(*headp) && headp->oh_nname != 0;
 | 
						|
}
 | 
						|
 | 
						|
do_object(f, size)
 | 
						|
	long size;
 | 
						|
{
 | 
						|
	struct outhead	headbuf;
 | 
						|
 | 
						|
	if (size < SZ_HEAD) {
 | 
						|
		/* It can't be an object file. */
 | 
						|
		return;
 | 
						|
	}
 | 
						|
	/*
 | 
						|
	 * Read a header to see if it is an object file.
 | 
						|
	 */
 | 
						|
	if (! rd_fdopen(f)) {
 | 
						|
		rd_fatal();
 | 
						|
	}
 | 
						|
	rd_ohead(&headbuf);
 | 
						|
	if (!is_outhead(&headbuf)) {
 | 
						|
		return;
 | 
						|
	}
 | 
						|
	do_names(&headbuf);
 | 
						|
}
 | 
						|
 | 
						|
/*
 | 
						|
 * First skip the names and read in the string table, then seek back to the
 | 
						|
 * name table and read and write the names one by one. Update the ranlib table
 | 
						|
 * accordingly.
 | 
						|
 */
 | 
						|
do_names(headp)
 | 
						|
	struct outhead	*headp;
 | 
						|
{
 | 
						|
	register char	*strings;
 | 
						|
	register int	nnames = headp->oh_nname;
 | 
						|
#define NNAMES 100
 | 
						|
	struct outname	namebuf[NNAMES];
 | 
						|
	long xxx = OFF_CHAR(*headp);
 | 
						|
 | 
						|
	if (	headp->oh_nchar != (unsigned int)headp->oh_nchar ||
 | 
						|
		(strings = malloc((unsigned int)headp->oh_nchar)) == (char *)0
 | 
						|
	   ) {
 | 
						|
		error(TRUE, "string table too big\n");
 | 
						|
	}
 | 
						|
	rd_string(strings, headp->oh_nchar);
 | 
						|
	while (nnames) {
 | 
						|
		int i = nnames >= NNAMES ? NNAMES : nnames;
 | 
						|
		register struct outname *p = namebuf;
 | 
						|
 | 
						|
		nnames -= i;
 | 
						|
		rd_name(namebuf, i);
 | 
						|
		while (i--) {
 | 
						|
			long off = p->on_foff - xxx;
 | 
						|
			if (p->on_foff == (long)0) {
 | 
						|
				p++;
 | 
						|
				continue; /* An unrecognizable name. */
 | 
						|
			}
 | 
						|
			p->on_mptr = strings + off;
 | 
						|
			/*
 | 
						|
			 * Only enter names that are exported and are really
 | 
						|
			 * defined. Also enter common names. Note, that
 | 
						|
			 * this might cause problems when the name is really
 | 
						|
			 * defined in a later file, with a value != 0.
 | 
						|
			 * However, this problem also exists on the Unix
 | 
						|
			 * ranlib archives.
 | 
						|
			 */
 | 
						|
			if (	(p->on_type & S_EXT) &&
 | 
						|
				(p->on_type & S_TYP) != S_UND
 | 
						|
			   )
 | 
						|
				enter_name(p);
 | 
						|
			p++;
 | 
						|
		}
 | 
						|
	}
 | 
						|
	free(strings);
 | 
						|
}
 | 
						|
 | 
						|
enter_name(namep)
 | 
						|
	struct outname *namep;
 | 
						|
{
 | 
						|
	register char	*cp;
 | 
						|
 | 
						|
	if (tnum >= tabsz) {
 | 
						|
		tab = (struct ranlib *)
 | 
						|
			realloc((char *) tab, (tabsz += 512) * sizeof(struct ranlib));
 | 
						|
		if (! tab) error(TRUE, "Out of core\n");
 | 
						|
	}
 | 
						|
	tab[tnum].ran_off = tssiz;
 | 
						|
	tab[tnum].ran_pos = offset;
 | 
						|
 | 
						|
	for (cp = namep->on_mptr;; cp++) {
 | 
						|
		if (tssiz >= strtabsz) {
 | 
						|
			tstrtab = realloc(tstrtab, (strtabsz += 4096));
 | 
						|
			if (! tstrtab) error(TRUE, "string table overflow\n");
 | 
						|
		}
 | 
						|
		tstrtab[tssiz++]  = *cp;
 | 
						|
		if (!*cp) break;
 | 
						|
	}
 | 
						|
	tnum++;
 | 
						|
}
 | 
						|
#endif AAL
 |