Initial revision

1 files changed, 850 insertions, 0 deletions

diff --git a/binutils/ar.c b/binutils/ar.c
new file mode 100644
index 0000000..9a8a528
--- /dev/null
+++ b/binutils/ar.c
@@ -0,0 +1,850 @@
+
+
+
+/* ar.c - Archive modify and extract. */
+/*
+   Bugs: should use getopt the way tar does (complete w/optional -) and
+   should have long options too. GNU ar used to check file against filesystem
+   in quick_update and replace operations (would check mtime). Doesn't warn
+   when name truncated. No way to specify pos_end. Error messages should be
+   more consistant.
+*/
+#include "sysdep.h"
+#include "bfd.h"
+#include "ar.h"
+#include <stdio.h>
+#include <sys/time.h>
+#include <errno.h>
+#define BUFSIZE 8192
+/* Not great to have these here.  Should they be exported or not? */
+PROTO(size_t, bfd_read, (void *ptr, size_t size, size_t nitems, bfd * abfd));
+PROTO(size_t, bfd_write, (void *ptr, size_t size, size_t nitems, bfd * abfd));
+/* PROTO (void, open_inarch, (char *archive_filename)); */
+#ifdef __STDC__
+static void     open_inarch(char *archive_filename);
+#else
+static void     open_inarch();
+#endif				/* __STDC__ */
+
+PROTO(void, map_over_members, (void (*function) (), char **files, int count));
+PROTO(void, print_contents, (bfd * member));
+PROTO(void, extract_file, (bfd * abfd));
+PROTO(void, delete_members, (char **files_to_delete));
+PROTO(void, do_quick_append, (char *archive_filename, char **files_to_append));
+PROTO(void, move_members, (char **files_to_move));
+PROTO(void, replace_members, (char **files_to_replace));
+PROTO(void, print_descr, (bfd * abfd));
+PROTO(void, ranlib_only, (char *archname));
+
+/** Globals and flags */
+
+char           *program_name = NULL;
+bfd             bogus_archive;
+bfd            *inarch;		/* The input arch we're manipulating */
+
+/* Nonzero means don't warn about creating the archive file if necessary.  */
+int             silent_create = 0;
+/* Nonzero means describe each action performed.  */
+int             verbose = 0;
+/* Nonzero means preserve dates of members when extracting them.  */
+int             preserve_dates = 0;
+/*
+   Nonzero means don't replace existing members whose dates are more recent
+   than the corresponding files.
+*/
+int             newer_only = 0;
+/* write a __.SYMDEF member into the modified archive.  */
+boolean         write_armap = false;
+/*
+   Nonzero means don't update __.SYMDEF unless command line explicitly
+   requested it
+*/
+int             ignore_symdef = 0;
+/*
+   Nonzero means it's the name of an existing member; position new or moved
+   files with respect to this one.
+*/
+char           *posname = NULL;
+/*
+   Sez how to use `posname': pos_before means position before that member.
+   pos_after means position after that member. pos_end means always at end.
+   pos_default means default appropriately. For the latter two, `posname'
+   should also be zero.
+*/
+enum pos {
+    pos_default, pos_before, pos_after, pos_end
+}               postype = pos_default;
+
+/*
+   The option parsing should be in its own function.  It will be when I have
+   getopt working.
+*/
+int
+main(argc, argv)
+    int             argc;
+    char          **argv;
+{
+    char           *arg_ptr;
+    char            c;
+    enum {
+	none = 0, delete, replace, print_table,
+	print_files, extract, move, quick_append
+    }               operation = none;
+    int             arg_index;
+    char          **files;
+    char           *inarch_filename;
+    char           *temp;
+    program_name = argv[0];
+
+
+    temp = strrchr(program_name, '/');
+    if (temp == (char *) NULL)
+	temp = program_name;	/* shouldn't happen, but... */
+    else
+	++temp;
+    if (!strcmp(temp, "ranlib")) {
+	if (argc < 2)
+	    fatal("Too few command arguments.");
+	ranlib_only(argv[1]);
+    }
+
+
+    if (argc < 3)
+	fatal("Too few command arguments.");
+
+    arg_ptr = argv[1];
+
+    if (*arg_ptr == '-')
+	++arg_ptr;		/* compatibility */
+
+    while (c = *arg_ptr++) {
+	switch (c) {
+	case 'd':
+	case 'm':
+	case 'p':
+	case 'q':
+	case 'r':
+	case 't':
+	case 'x':
+	    if (operation != none)
+		fatal("two different operation switches specified");
+	    switch (c) {
+	    case 'd':
+		operation = delete;
+		break;
+	    case 'm':
+		operation = move;
+		break;
+	    case 'p':
+		operation = print_files;
+		break;
+	    case 'q':
+		operation = quick_append;
+		break;
+	    case 'r':
+		operation = replace;
+		break;
+	    case 't':
+		operation = print_table;
+		break;
+	    case 'x':
+		operation = extract;
+		break;
+	    }
+	case 'l':
+	    break;
+	case 'c':
+	    silent_create = 1;
+	    break;
+	case 'o':
+	    preserve_dates = 1;
+	    break;
+	case 's':
+	    write_armap = true;
+	    break;
+	case 'u':
+	    newer_only = 1;
+	    break;
+	case 'v':
+	    verbose = 1;
+	    break;
+	case 'a':
+	    postype = pos_after;
+	    break;
+	case 'b':
+	    postype = pos_before;
+	    break;
+	case 'i':
+	    postype = pos_before;
+	    break;
+	default:
+	    fatal("invalid option %c", c);
+	}
+    }
+
+    if (operation == none && write_armap)
+	ranlib_only(argv[2]);
+
+    if (operation == none)
+	fatal("no operation specified");
+
+    if (newer_only && operation != replace)
+	fatal("'u' only meaningful with 'r' option.");
+
+    arg_index = 2;
+
+    if (postype != pos_default)
+	posname = argv[arg_index++];
+
+    inarch_filename = argv[arg_index++];
+
+    if (arg_index < argc) {
+	files = argv + arg_index;
+	while (arg_index < argc)
+	    if (!strcmp(argv[arg_index++], "__.SYMDEF")) {
+		ignore_symdef = 1;
+		break;
+	    }
+    }
+    else
+	files = NULL;
+
+    if (operation == quick_append) {
+	if (files != NULL)
+	    do_quick_append(inarch_filename, files);
+	exit(0);
+    }
+
+
+    open_inarch(inarch_filename);
+    /*
+       If we have no archive, and we've been asked to replace then create one
+    */
+
+    if (operation == replace &&
+	inarch == &bogus_archive) {
+	silent_create = 1;
+	do_quick_append(inarch_filename, 0);
+	open_inarch(inarch_filename);
+    }
+
+    switch (operation) {
+
+    case print_table:
+	map_over_members(print_descr, files, argc - 3);
+	break;
+
+    case print_files:
+	map_over_members(print_contents, files, argc - 3);
+	break;
+
+    case extract:
+	map_over_members(extract_file, files, argc - 3);
+	break;
+
+    case delete:
+	if (files != NULL)
+	    delete_members(files);
+	break;
+
+    case move:
+	if (files != NULL)
+	    move_members(files);
+	break;
+
+    case replace:
+	if (files != NULL || write_armap)
+	    replace_members(files);
+	break;
+
+	/* Shouldn't happen! */
+    default:
+	fprintf(stderr, "Sorry; this option not implemented.\n");
+    }
+
+    return (0);
+}				/* main() */
+
+static
+char *normalize(file)
+char *file;
+{
+    char *    filename = strrchr(file, '/');
+    if (filename != (char *)NULL) {
+	filename ++;
+    }
+    else {
+	filename = file;
+    }
+    return filename;
+}
+
+static void
+open_inarch(archive_filename)
+    char           *archive_filename;
+{
+    bfd           **last_one;
+    bfd            *next_one;
+    struct stat     sbuf;
+    bfd_error = no_error;
+    if (stat(archive_filename, &sbuf) != 0) {
+	if (errno != ENOENT)
+	    bfd_fatal(archive_filename);
+	if (!silent_create)
+	    fprintf(stderr,
+		    "%s: creating %s\n", program_name, archive_filename);
+
+	inarch = &bogus_archive;
+	inarch->filename = archive_filename;
+	inarch->has_armap = true;
+
+    }
+    else {
+	inarch = bfd_openr(archive_filename, NULL);
+	if (inarch == NULL) {
+    bloser:
+	    bfd_perror(archive_filename);
+	    exit(1);
+	}
+
+	if (bfd_check_format(inarch, bfd_archive) != true)
+	    fatal("File %s is not an archive.", archive_filename);
+	last_one = &(inarch->next);
+	/* Read all the contents right away, regardless. */
+	for (next_one = bfd_openr_next_archived_file(inarch, NULL);
+	     next_one;
+	     next_one = bfd_openr_next_archived_file(inarch, next_one)) {
+	    *last_one = next_one;
+	    last_one = &next_one->next;
+	}
+	*last_one = (bfd *) NULL;
+	if (bfd_error != no_more_archived_files)
+	    goto bloser;
+    }
+}
+
+
+
+/*
+   If count is 0, then function is called once on each entry. if nonzero,
+   count is the length of the files chain; function is called on each entry
+   whose name matches one in files
+*/
+void
+map_over_members(function, files, count)
+    void            (*function) ();
+    char          **files;
+    int             count;
+{
+    bfd            *head;
+
+
+
+
+    if (count == 0) {
+	for (head = inarch->next; head; head = head->next)
+	    function(head);
+	return;
+    }
+    /*
+       This may appear to be a baroque way of accomplishing what we want.
+       however we have to iterate over the filenames in order to notice where
+       a filename is requested but does not exist in the archive.  Ditto
+       mapping over each file each time -- we want to hack multiple
+       references.
+    */
+
+    for (; count > 0; files++, count--) {
+	boolean         found = false;
+	for (head = inarch->next; head; head = head->next)
+	    if ((head->filename != NULL) &&
+		(!strcmp(*files, head->filename))) {
+		found = true;
+		function(head);
+	    }
+	if (!found)
+	    fprintf(stderr, "No entry %s in archive.\n", *files);
+    }
+}
+
+
+/* Things which are interesting to map over all or some of the files: */
+
+void
+print_descr(abfd)
+    bfd            *abfd;
+{
+    print_arelt_descr(abfd, verbose);
+}
+
+void
+print_contents(abfd)
+    bfd            *abfd;
+{
+    int             ncopied = 0;
+    struct stat     buf;
+    long            size;
+    if (bfd_stat_arch_elt(abfd, &buf) != 0)
+	fatal("Internal stat error on %s", abfd->filename);
+
+    if (verbose)
+	printf("\n<member %s>\n\n", abfd->filename);
+
+    bfd_seek(abfd, 0, SEEK_SET);
+
+    size = buf.st_size;
+    while (ncopied < size) {
+	char            cbuf[BUFSIZE];
+	int             nread;
+	int             tocopy = size - ncopied;
+	if (tocopy > BUFSIZE)
+	    tocopy = BUFSIZE;
+
+	nread = bfd_read(cbuf, 1, tocopy, abfd);	/* oops -- broke
+							   abstraction!  */
+
+	if (nread != tocopy)
+	    fatal("file %s not a valid archive", abfd->my_archive->filename);
+	fwrite(cbuf, 1, nread, stdout);
+	ncopied += tocopy;
+    }
+}
+
+
+/*
+   Extract a member of the archive into its own file.
+
+We defer opening the new file until after we have read a BUFSIZ chunk of the
+   old one, since we know we have just read the archive header for the old
+   one.  Since most members are shorter than BUFSIZ, this means we will read
+   the old header, read the old data, write a new inode for the new file, and
+   write the new data, and be done. This 'optimization' is what comes from
+   sitting next to a bare disk and hearing it every time it seeks.  -- Gnu
+   Gilmore
+*/
+
+void
+extract_file(abfd)
+    bfd            *abfd;
+{
+    FILE           *ostream;
+    char            cbuf[BUFSIZE];
+    int             nread,
+                    tocopy;
+    int             ncopied = 0;
+    long            size;
+    struct stat     buf;
+    if (bfd_stat_arch_elt(abfd, &buf) != 0)
+	fatal("Internal stat error on %s", abfd->filename);
+    size = buf.st_size;
+
+    if (verbose)
+	printf("x - %s\n", abfd->filename);
+
+    bfd_seek(abfd, 0, SEEK_SET);
+
+    ostream = 0;
+    while (ncopied < size) {
+	tocopy = size - ncopied;
+	if (tocopy > BUFSIZE)
+	    tocopy = BUFSIZE;
+
+	nread = bfd_read(cbuf, 1, tocopy, abfd);
+	if (nread != tocopy)
+	    fatal("file %s not a valid archive", abfd->my_archive->filename);
+
+	/* See comment above; this saves disk arm motion */
+	if (!ostream) {
+	    /* Seems like an abstraction violation, eh?  Well it's OK! */
+	    ostream = fopen(abfd->filename, "w");
+	    if (!ostream) {
+		perror(abfd->filename);
+		exit(1);
+	    }
+	}
+	/* no need to byte-swap; the two formats are presumably compatible(!) */
+	fwrite(cbuf, 1, nread, ostream);
+	ncopied += tocopy;
+    }
+
+    fclose(ostream);
+    chmod(abfd->filename, buf.st_mode);
+
+    if (preserve_dates) {
+#ifdef USG
+	long            tb[2];
+	tb[0] = buf.st_mtime;
+	tb[1] = buf.st_mtime;
+	utime(abfd->filename, tb);	/* FIXME check result */
+#else
+	struct timeval  tv[2];
+	tv[0].tv_sec = buf.st_mtime;
+	tv[0].tv_usec = 0;
+	tv[1].tv_sec = buf.st_mtime;
+	tv[1].tv_usec = 0;
+	utimes(abfd->filename, tv);	/* FIXME check result */
+#endif
+    }
+}
+
+
+/* Just do it quickly; don't worry about dups, armap, or anything like that */
+
+/* This is ugly! XXX */
+
+PROTO(struct ar_hdr *, bfd_special_undocumented_glue, (char *filename));
+
+void
+do_quick_append(archive_filename, files_to_append)
+    char           *archive_filename;
+    char          **files_to_append;
+
+{
+    FILE           *ofile,
+                   *ifile;
+    char            buf[BUFSIZE];
+    long            tocopy,
+                    thistime;
+    bfd            *temp;
+    struct stat     sbuf;
+    boolean         newfile = false;
+    bfd_error = no_error;
+
+    if (stat(archive_filename, &sbuf) != 0) {
+	if (errno != ENOENT)
+	    bfd_fatal(archive_filename);
+	newfile = true;
+    }
+
+
+    ofile = fopen(archive_filename, "a+");
+    if (ofile == NULL) {
+	perror(program_name);
+	exit(1);
+    }
+
+    /* bletch */
+    temp = bfd_openr(archive_filename, NULL);
+    if (temp == NULL) {
+	bfd_perror(archive_filename);
+	exit(1);
+    }
+    if (newfile == false) {
+	if (bfd_check_format(temp, bfd_archive) != true)
+	    fatal("File %s is not an archive.", archive_filename);
+    }
+    else {
+	fwrite(ARMAG, 1, SARMAG, ofile);
+	if (!silent_create)
+	    fprintf(stderr, "%s: creating %s\n", program_name, archive_filename);
+    }
+
+    /* assume it's an achive, go straight to the end, sans $200 */
+    fseek(ofile, 0, 2);
+
+    for (; files_to_append && *files_to_append; ++files_to_append) {
+	struct ar_hdr  *hdr = bfd_special_undocumented_glue(*files_to_append);
+	if (hdr == NULL) {
+	    bfd_perror(*files_to_append);
+	    exit(1);
+	}
+
+	BFD_SEND(temp, _bfd_truncate_arname, (temp, *files_to_append, (char *) hdr));
+
+	ifile = fopen(*files_to_append, "r");
+	if (ifile == NULL)
+	    bfd_perror(program_name);
+
+	if (stat(*files_to_append, &sbuf) != 0)
+	    bfd_perror(*files_to_append);
+
+	tocopy = sbuf.st_size;
+
+	/* XXX should do error-checking! */
+	fwrite(hdr, 1, sizeof(struct ar_hdr), ofile);
+
+
+	while (tocopy > 0) {
+	    thistime = tocopy;
+	    if (thistime > BUFSIZE)
+		thistime = BUFSIZE;
+	    fread(buf, 1, thistime, ifile);
+	    fwrite(buf, 1, thistime, ofile);
+	    tocopy -= thistime;
+	}
+	fclose(ifile);
+	if ((sbuf.st_size % 2) == 1)
+	    putc('\n', ofile);
+    }
+    fclose(ofile);
+    bfd_close(temp);
+}
+
+
+void
+write_archive()
+{
+    bfd            *obfd;
+    char           *xmalloc();
+    int             namelen = strlen(inarch->filename);
+    char           *new_name = xmalloc(namelen + 6);
+    bfd            *contents_head = inarch->next;
+    if (inarch == &bogus_archive) {
+	/* How can this be ? */
+	return;
+    }
+    else {
+
+	strcpy(new_name, inarch->filename);
+	strcpy(new_name + namelen, ".art");
+	obfd = bfd_openw(new_name, bfd_get_target(inarch));
+
+	if (obfd == NULL)
+	    bfd_fatal(inarch->filename);
+
+	bfd_set_format(obfd, bfd_archive);
+	obfd->has_armap = write_armap;
+
+	if (bfd_set_archive_head(obfd, contents_head) != true)
+	    bfd_fatal(inarch->filename);
+
+	if (!bfd_close(obfd))
+	    bfd_fatal(inarch->filename);
+	if (rename(new_name, inarch->filename) != 0)
+	    bfd_fatal(inarch->filename);
+    }
+}
+
+
+
+/*
+   returns a pointer to the pointer to the entry which should be rplacd'd
+   into when altering.  default_pos should be how to interpret pos_default,
+   and should be a pos value.
+*/
+
+bfd **
+get_pos_bfd(contents, default_pos)
+    bfd           **contents;
+    enum pos        default_pos;
+{
+    bfd           **after_bfd;
+
+    enum pos        realpos = (postype == pos_default ? default_pos : postype);
+    switch (realpos) {
+
+    case pos_end:
+	after_bfd = contents;
+	while (*after_bfd) {
+	    after_bfd = &((*after_bfd)->next);
+	}
+
+	break;
+#if 0
+    case pos_after:
+	for (after_bfd = contents; after_bfd; after_bfd = after_bfd->next)
+	    if (!strcpy(after_bfd->filename, posname))
+		break;
+	break;
+    case pos_before:
+	for (after_bfd = contents; after_bfd; after_bfd = after_bfd->next)
+	    if (after_bfd->next && (!strcpy(after_bfd->next->filename, posname)))
+		break;
+#endif
+    }
+
+    return after_bfd;
+}
+
+
+void
+delete_members(files_to_delete)
+    char          **files_to_delete;
+{
+    bfd           **current_ptr_ptr;
+    boolean         found;
+    boolean         something_changed = false;
+    for (; *files_to_delete != NULL; ++files_to_delete) {
+	/*
+	   In a.out systems, the armap is optional.  It's also called
+	   __.SYMDEF.  So if the user asked to delete it, we should remember
+	   that fact. The name is NULL in COFF archives, so using this as a
+	   key is as good as anything I suppose
+	*/
+	if (!strcmp(*files_to_delete, "__.SYMDEF")) {
+	    inarch->has_armap = false;
+	    write_armap = false;
+	    continue;
+	}
+
+	found = false;
+	current_ptr_ptr = &(inarch->next);
+	while (*current_ptr_ptr) {
+	    if (strcmp(*files_to_delete, (*current_ptr_ptr)->filename) == 0) {
+		found = true;
+		something_changed = true;
+		if (verbose)
+		    printf("d - %s\n",
+			   *files_to_delete);
+		*current_ptr_ptr = ((*current_ptr_ptr)->next);
+		goto next_file;
+
+	    }
+	    else {
+		current_ptr_ptr = &((*current_ptr_ptr)->next);
+	    }
+	}
+
+	if (verbose && found == false) {
+	    printf("No member named `%s'\n", *files_to_delete);
+	}
+next_file:;
+
+    }
+
+    if (something_changed == true) {
+	write_archive();
+    }
+}
+
+
+/* Reposition existing members within an archive */
+
+void
+move_members(files_to_move)
+    char          **files_to_move;
+{
+    bfd           **after_bfd;	/* New entries go after this one */
+    bfd           **current_ptr_ptr;	/* cdr pointer into contents */
+
+
+
+
+    for (; *files_to_move; ++files_to_move) {
+	current_ptr_ptr = &(inarch->next);
+	while (*current_ptr_ptr) {
+	    bfd            *current_ptr = *current_ptr_ptr;
+	    if (strcmp(normalize(*files_to_move), current_ptr->filename) == 0) {
+		/*
+		   Move this file to the end of the list - first cut from
+		   where it is.
+		*/
+		*current_ptr_ptr = current_ptr->next;
+
+		/* Now glue to end */
+		after_bfd = get_pos_bfd(&inarch->next, pos_end);
+		*after_bfd = current_ptr;
+		current_ptr->next = (bfd *) NULL;
+
+		if (verbose)
+		    printf("m - %s\n", *files_to_move);
+
+		goto next_file;
+	    }
+	    current_ptr_ptr = &((*current_ptr_ptr)->next);
+	}
+	fprintf(stderr, "No entry %s in archive %s!\n",
+		*files_to_move, inarch->filename);
+	exit(1);
+next_file:;
+    }
+
+    write_archive();
+}
+
+
+/* Ought to default to replacing in place, but this is existing practice! */
+
+void
+replace_members(files_to_move)
+    char          **files_to_move;
+{
+    bfd           **after_bfd;	/* New entries go after this one */
+    bfd            *current;
+    bfd           **current_ptr;
+    bfd            *temp;
+    /*
+       If the first item in the archive is an __.SYMDEF then remove it
+    */
+    if (inarch->next &&
+	strcmp(inarch->next->filename, "__.SYMDEF") == 0) {
+	inarch->next = inarch->next->next;
+    }
+
+
+
+    while (files_to_move && *files_to_move) {
+	current_ptr = &inarch->next;
+	while (*current_ptr) {
+	    current = *current_ptr;
+	    
+	    if (!strcmp(normalize(*files_to_move), current->filename)) {
+		/* snip out this entry from the chain */
+		*current_ptr = current->next;
+		if (newer_only) {
+		    struct stat     fsbuf,
+		                    asbuf;
+		    if (stat(*files_to_move, &fsbuf) != 0) {
+			if (errno != ENOENT)
+			    bfd_fatal(*files_to_move);
+			goto next_file;
+		    }
+		    if (bfd_stat_arch_elt(current, &asbuf) != 0)
+			fatal("Internal stat error on %s", current->filename);
+
+		    if (fsbuf.st_mtime <= asbuf.st_mtime)
+			goto next_file;
+		}
+
+
+		after_bfd = get_pos_bfd(&inarch->next, pos_end);
+		temp = *after_bfd;
+		*after_bfd = bfd_openr(*files_to_move, NULL);
+		if (*after_bfd == (bfd *) NULL) {
+		    fprintf(stderr, "Can't open file %s\n", *files_to_move);
+		    exit(1);
+		}
+		(*after_bfd)->next = temp;
+
+		if (verbose) {
+		    printf("%c - %s\n", (postype == pos_after ? 'r' : 'a'),
+			   *files_to_move);
+		}
+		goto next_file;
+	    }
+	    current_ptr = &(current->next);
+	}
+
+	/* It isn't in there, so add to end */
+
+	after_bfd = get_pos_bfd(&inarch->next, pos_end);
+	temp = *after_bfd;
+	*after_bfd = bfd_openr(*files_to_move, NULL);
+	if (*after_bfd == (bfd *) NULL) {
+	    fprintf(stderr, "Can't open file %s\n", *files_to_move);
+	    exit(1);
+	}
+	if (verbose) {
+	    printf("c - %s\n", *files_to_move);
+	}
+
+	(*after_bfd)->next = temp;
+
+next_file:;
+
+	files_to_move++;
+    }
+
+
+    write_archive();
+}
+
+void
+ranlib_only(archname)
+    char           *archname;
+{
+    write_armap = true;
+    open_inarch(archname);
+    write_archive();
+    exit(0);
+}