2 * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
3 * See the copyright notice in the ACK home directory, in the file "Copyright".
5 /* ar - archiver Author: Michiel Huisjes */
6 /* Made into arch/aal by Ceriel Jacobs
9 static char RcsId[] = "$Id: archiver.c,v 1.29 1995/06/28 09:46:39 ceriel Exp $";
12 * Usage: [arch|aal] [qdprtx][vlcu] archive [file] ...
16 * r: replace (append when not in archive)
18 * t: print contents of archive
19 * p: print named files
20 * l: temporaries in current directory instead of /tmp
21 * c: don't give "create" message
22 * u: replace only if dated later than member in archive
24 * D: make distribution: use distr_time, uid=2, gid=2, mode=0644
28 #include <sys/types.h>
35 #define MAGIC_NUMBER AALMAG
38 unsigned int tnum = 0;
40 unsigned int tssiz = 0;
41 char *malloc(), *realloc(), *strcpy(), *strncpy();
43 unsigned int tabsz, strtabsz;
45 #define MAGIC_NUMBER ARMAG
49 #define odd(nr) (nr & 01)
50 #define even(nr) (odd(nr) ? nr + 1 : nr)
60 #define MEMBER struct ar_hdr
62 #define NIL_PTR ((char *) 0)
63 #define NIL_MEM ((MEMBER *) 0)
64 #define NIL_LONG ((long *) 0)
66 #define IO_SIZE (10 * 1024)
68 #define equal(str1, str2) (!strncmp((str1), (str2), 14))
70 #define S_ISDIR(m) (m & S_IFDIR) /* is a directory */
73 /* Use Posix names if old-fashioned names are not defined. */
76 #define S_IREAD S_IRUSR
79 #define S_IWRITE S_IWUSR
82 #define S_IEXEC S_IXUSR
102 char io_buffer[IO_SIZE];
107 char *temp_arch = &temp_buf[0];
108 extern char *mktemp();
109 extern char *ctime();
113 error(TRUE, "usage: %s [qdprtxl][vlc] archive [file] ...\n",
119 error(quit, str1, str2, str3, str4)
121 char *str1, *str2, *str3, *str4;
125 sprint(errbuf, str1, str2, str3, str4);
126 write(2, errbuf, strlen(errbuf));
136 register char *ptr = path;
137 register char *last = NIL_PTR;
139 while (*ptr != '\0') {
146 if (*(last + 1) == '\0') {
148 return basename(path);
153 extern unsigned int rd_unsigned2();
155 open_archive(name, mode)
159 unsigned short magic = 0;
162 if (mode == CREATE) {
163 if ((fd = creat(name, 0666)) < 0)
164 error(TRUE, "cannot creat %s\n", name);
165 magic = MAGIC_NUMBER;
170 if ((fd = open(name, mode)) < 0) {
171 if (mode == APPEND) {
172 close(open_archive(name, CREATE));
173 if (!nocr_fl) error(FALSE, "%s: creating %s\n", progname, name);
174 return open_archive(name, APPEND);
176 error(TRUE, "cannot open %s\n", name);
179 magic = rd_unsigned2(fd);
180 if (magic != AALMAG && magic != ARMAG)
181 error(TRUE, "%s is not in ar format\n", name);
205 for (ptr = argv[1]; *ptr; ptr++) {
251 if (needs_arg && argc <= 3)
255 static struct stat statbuf;
257 stat(progname, &statbuf);
258 distr_time = statbuf.st_mtime;
261 if (local_fl) strcpy(temp_arch, "ar.XXXXXX");
262 else strcpy(temp_arch, "/tmp/ar.XXXXXX");
264 if (app_fl + ex_fl + del_fl + rep_fl + show_fl + pr_fl != 1)
267 if (u_fl && ! rep_fl)
278 tab = (struct ranlib *) malloc(512 * sizeof(struct ranlib));
279 tstrtab = malloc(4096);
280 if (!tab || !tstrtab) error(TRUE,"Out of core\n");
285 signal(SIGINT, catch);
294 static MEMBER member;
297 if (rd_arhdr(ar_fd, &member) == 0)
299 if (member.ar_size < 0) {
300 error(TRUE, "archive has member with negative size\n");
302 if (equal(SYMDEF, member.ar_name)) {
303 lseek(ar_fd, member.ar_size, 1);
313 register char *argv[];
315 register MEMBER *member;
317 int temp_fd, read_chars;
319 ar_fd = open_archive(argv[2], (show_fl || pr_fl || ex_fl) ? READ : APPEND);
325 temp_fd = open_archive(temp_arch, CREATE);
326 while ((member = get_member()) != NIL_MEM) {
328 for (i = 3; i < argc; i++) {
329 if (equal(basename(argv[i]), member->ar_name))
332 if (i == argc || app_fl) {
340 print("%s: already in archive\n", argv[i]);
344 wr_arhdr(temp_fd, member);
345 copy_member(member, ar_fd, temp_fd, 0);
349 if (app_fl && i != argc) {
350 print("%s: already in archive\n", argv[i]);
354 lseek(ar_fd, even(member->ar_size),1);
363 add(argv[i], temp_fd, "r - %s\n");
365 char buf[sizeof(member->ar_name) + 2];
366 register char *p = buf, *q = member->ar_name;
368 while (q <= &member->ar_name[sizeof(member->ar_name)-1] && *q) {
374 char *mode = get_mode(member->ar_mode);
375 char *date = ctime(&(member->ar_date));
380 print("%s%3u/%u%7ld %s %s %s",
382 (unsigned) (member->ar_uid & 0377),
383 (unsigned) (member->ar_gid & 0377),
392 show("d - %s\n", member->ar_name);
393 lseek(ar_fd, even(member->ar_size), 1);
399 for (i = 3; i < argc; i++)
400 if (argv[i][0] != '\0') {
403 add(argv[i], ar_fd, "a - %s\n");
411 add(argv[i], temp_fd, "a - %s\n");
413 print("%s: not found\n", argv[i]);
423 signal(SIGINT, SIG_IGN);
426 ar_fd = open_archive(argv[2], CREATE);
427 temp_fd = open_archive(temp_arch, APPEND);
431 while ((read_chars = read(temp_fd, io_buffer, IO_SIZE)) > 0)
432 mwrite(ar_fd, io_buffer, read_chars);
444 static MEMBER member;
445 register int read_chars;
449 if (stat(name, &status) < 0) {
450 error(FALSE, "cannot find %s\n", name);
453 else if (S_ISDIR(status.st_mode)) {
454 error(FALSE, "%s is a directory (ignored)\n", name);
457 else if (u_fl && status.st_mtime <= member.ar_date) {
458 wr_arhdr(fd, member);
459 copy_member(member, ar_fd, fd, 0);
462 else if ((src_fd = open(name, 0)) < 0) {
463 error(FALSE, "cannot open %s\n", name);
467 strncpy (member.ar_name, basename (name), sizeof(member.ar_name));
468 member.ar_uid = status.st_uid;
469 member.ar_gid = status.st_gid;
470 member.ar_mode = status.st_mode;
471 member.ar_date = status.st_mtime;
472 member.ar_size = status.st_size;
477 member.ar_mode = 0644;
478 member.ar_date = distr_time;
481 wr_arhdr(fd, &member);
483 do_object(src_fd, member.ar_size);
484 lseek(src_fd, 0L, 0);
485 offset += AR_TOTAL + even(member.ar_size);
487 while (status.st_size > 0) {
491 if (status.st_size < x) {
497 else status.st_size -= x;
498 if (read(src_fd, io_buffer, read_chars) != read_chars) {
499 error(FALSE,"%s seems to shrink\n", name);
502 mwrite(fd, io_buffer, x);
506 show(mess, member.ar_name);
511 register MEMBER *member;
514 char buf[sizeof(member->ar_name) + 1];
516 strncpy(buf, member->ar_name, sizeof(member->ar_name));
517 buf[sizeof(member->ar_name)] = 0;
518 if (pr_fl == FALSE && (fd = creat(buf, 0666)) < 0) {
519 error(FALSE, "cannot create %s\n", buf);
524 if (pr_fl == FALSE) show("x - %s\n", buf);
525 else show("\n<%s>\n\n", buf);
528 copy_member(member, ar_fd, fd, 1);
530 if (fd >= 0 && fd != 1)
532 if (pr_fl == FALSE) chmod(buf, member->ar_mode);
535 copy_member(member, from, to, extracting)
536 register MEMBER *member;
540 long mem_size = member->ar_size;
541 BOOL is_odd = odd(mem_size) ? TRUE : FALSE;
545 long pos = lseek(from, 0L, 1);
547 do_object(from, mem_size);
548 offset += AR_TOTAL + even(mem_size);
553 rest = mem_size > (long) IO_SIZE ? IO_SIZE : (int) mem_size;
554 if (read(from, io_buffer, rest) != rest) {
555 char buf[sizeof(member->ar_name) + 1];
557 strncpy(buf, member->ar_name, sizeof(member->ar_name));
558 buf[sizeof(member->ar_name)] = 0;
559 error(TRUE, "read error on %s\n", buf);
561 if (to >= 0) mwrite(to, io_buffer, rest);
562 mem_size -= (long) rest;
563 } while (mem_size > 0L);
567 if (to >= 0 && ! extracting)
576 static char mode_buf[11];
577 register int tmp = mode;
581 for (i = 0; i < 3; i++) {
582 mode_buf[i * 3] = (tmp & S_IREAD) ? 'r' : '-';
583 mode_buf[i * 3 + 1] = (tmp & S_IWRITE) ? 'w' : '-';
584 mode_buf[i * 3 + 2] = (tmp & S_IEXEC) ? 'x' : '-';
596 error(TRUE, "write error\n");
601 error(TRUE, "read error\n");
604 mwrite(fd, address, bytes)
606 register char *address;
609 if (write(fd, address, bytes) != bytes)
610 error(TRUE, "write error\n");
617 char buf[sizeof(x.ar_name)+1];
618 register char *p = buf, *q = name;
620 while (q <= &name[sizeof(x.ar_name)-1] && *q) *p++ = *q++;
627 * Write out the ranlib table: first 4 bytes telling how many ranlib structs
628 * there are, followed by the ranlib structs,
629 * then 4 bytes giving the size of the string table, followed by the string
634 register struct ranlib *ran;
641 tstrtab[tssiz++] = '\0';
642 for (i = 0; i < sizeof(arbuf.ar_name); i++)
643 arbuf.ar_name[i] = '\0';
644 strcpy(arbuf.ar_name, SYMDEF);
645 arbuf.ar_size = 4 + 2 * 4 * (long)tnum + 4 + (long)tssiz;
646 time(&arbuf.ar_date);
647 arbuf.ar_uid = getuid();
648 arbuf.ar_gid = getgid();
649 arbuf.ar_mode = 0444;
654 arbuf.ar_date = distr_time;
657 wr_arhdr(ar_fd,&arbuf);
658 wr_long(ar_fd, (long) tnum);
660 * Account for the space occupied by the magic number
661 * and the ranlib table.
663 delta = 2 + AR_TOTAL + arbuf.ar_size;
664 for (ran = tab; ran < &tab[tnum]; ran++) {
665 ran->ran_pos += delta;
668 wr_ranlib(ar_fd, tab, (long) tnum);
669 wr_long(ar_fd, (long) tssiz);
670 wr_bytes(ar_fd, tstrtab, (long) tssiz);
674 * Return whether the bytes in `buf' form a good object header.
675 * The header is put in `headp'.
679 register struct outhead *headp;
682 return !BADMAGIC(*headp) && headp->oh_nname != 0;
688 struct outhead headbuf;
690 if (size < SZ_HEAD) {
691 /* It can't be an object file. */
695 * Read a header to see if it is an object file.
697 if (! rd_fdopen(f)) {
701 if (!is_outhead(&headbuf)) {
708 * First skip the names and read in the string table, then seek back to the
709 * name table and read and write the names one by one. Update the ranlib table
713 struct outhead *headp;
715 register char *strings;
716 register int nnames = headp->oh_nname;
718 struct outname namebuf[NNAMES];
719 long xxx = OFF_CHAR(*headp);
721 if ( headp->oh_nchar != (unsigned int)headp->oh_nchar ||
722 (strings = malloc((unsigned int)headp->oh_nchar)) == (char *)0
724 error(TRUE, "string table too big\n");
726 rd_string(strings, headp->oh_nchar);
728 int i = nnames >= NNAMES ? NNAMES : nnames;
729 register struct outname *p = namebuf;
734 long off = p->on_foff - xxx;
735 if (p->on_foff == (long)0) {
737 continue; /* An unrecognizable name. */
739 p->on_mptr = strings + off;
741 * Only enter names that are exported and are really
742 * defined. Also enter common names. Note, that
743 * this might cause problems when the name is really
744 * defined in a later file, with a value != 0.
745 * However, this problem also exists on the Unix
748 if ( (p->on_type & S_EXT) &&
749 (p->on_type & S_TYP) != S_UND
759 struct outname *namep;
764 tab = (struct ranlib *)
765 realloc((char *) tab, (tabsz += 512) * sizeof(struct ranlib));
766 if (! tab) error(TRUE, "Out of core\n");
768 tab[tnum].ran_off = tssiz;
769 tab[tnum].ran_pos = offset;
771 for (cp = namep->on_mptr;; cp++) {
772 if (tssiz >= strtabsz) {
773 tstrtab = realloc(tstrtab, (strtabsz += 4096));
774 if (! tstrtab) error(TRUE, "string table overflow\n");
776 tstrtab[tssiz++] = *cp;