Squashed 'third_party/elfutils/' content from commit 555e15e
Change-Id: I61cde98949e47e5c8c09c33260de17f30921be79
git-subtree-dir: third_party/elfutils
git-subtree-split: 555e15ebe8bf1eb33d00747173cfc80cc65648a4
diff --git a/src/ar.c b/src/ar.c
new file mode 100644
index 0000000..818115b
--- /dev/null
+++ b/src/ar.c
@@ -0,0 +1,1555 @@
+/* Create, modify, and extract from archives.
+ Copyright (C) 2005-2012, 2016, 2017 Red Hat, Inc.
+ This file is part of elfutils.
+ Written by Ulrich Drepper <drepper@redhat.com>, 2005.
+
+ This file 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 3 of the License, or
+ (at your option) any later version.
+
+ elfutils 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, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <argp.h>
+#include <assert.h>
+#include <error.h>
+#include <fcntl.h>
+#include <gelf.h>
+#include <libintl.h>
+#include <limits.h>
+#include <locale.h>
+#include <search.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdio_ext.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+
+#include <system.h>
+#include <printversion.h>
+
+#include "arlib.h"
+
+
+/* Name and version of program. */
+ARGP_PROGRAM_VERSION_HOOK_DEF = print_version;
+
+/* Prototypes for local functions. */
+static int do_oper_extract (int oper, const char *arfname, char **argv,
+ int argc, long int instance);
+static int do_oper_delete (const char *arfname, char **argv, int argc,
+ long int instance);
+static int do_oper_insert (int oper, const char *arfname, char **argv,
+ int argc, const char *member);
+
+
+/* Bug report address. */
+ARGP_PROGRAM_BUG_ADDRESS_DEF = PACKAGE_BUGREPORT;
+
+
+/* Definitions of arguments for argp functions. */
+static const struct argp_option options[] =
+{
+ { NULL, 0, NULL, 0, N_("Commands:"), 1 },
+ { NULL, 'd', NULL, 0, N_("Delete files from archive."), 0 },
+ { NULL, 'm', NULL, 0, N_("Move files in archive."), 0 },
+ { NULL, 'p', NULL, 0, N_("Print files in archive."), 0 },
+ { NULL, 'q', NULL, 0, N_("Quick append files to archive."), 0 },
+ { NULL, 'r', NULL, 0,
+ N_("Replace existing or insert new file into archive."), 0 },
+ { NULL, 't', NULL, 0, N_("Display content of archive."), 0 },
+ { NULL, 'x', NULL, 0, N_("Extract files from archive."), 0 },
+
+ { NULL, 0, NULL, 0, N_("Command Modifiers:"), 2 },
+ { NULL, 'o', NULL, 0, N_("Preserve original dates."), 0 },
+ { NULL, 'N', NULL, 0, N_("Use instance [COUNT] of name."), 0 },
+ { NULL, 'C', NULL, 0,
+ N_("Do not replace existing files with extracted files."), 0 },
+ { NULL, 'T', NULL, 0, N_("Allow filename to be truncated if necessary."),
+ 0 },
+ { NULL, 'v', NULL, 0, N_("Provide verbose output."), 0 },
+ { NULL, 's', NULL, 0, N_("Force regeneration of symbol table."), 0 },
+ { NULL, 'a', NULL, 0, N_("Insert file after [MEMBER]."), 0 },
+ { NULL, 'b', NULL, 0, N_("Insert file before [MEMBER]."), 0 },
+ { NULL, 'i', NULL, 0, N_("Same as -b."), 0 },
+ { NULL, 'c', NULL, 0, N_("Suppress message when library has to be created."),
+ 0 },
+ { NULL, 'P', NULL, 0, N_("Use full path for file matching."), 0 },
+ { NULL, 'u', NULL, 0, N_("Update only older files in archive."), 0 },
+
+ { NULL, 0, NULL, 0, NULL, 0 }
+};
+
+/* Short description of program. */
+static const char doc[] = N_("Create, modify, and extract from archives.");
+
+/* Strings for arguments in help texts. */
+static const char args_doc[] = N_("[MEMBER] [COUNT] ARCHIVE [FILE...]");
+
+/* Prototype for option handler. */
+static error_t parse_opt (int key, char *arg, struct argp_state *state);
+
+/* Data structure to communicate with argp functions. */
+static struct argp argp =
+{
+ options, parse_opt, args_doc, doc, arlib_argp_children, NULL, NULL
+};
+
+
+/* What operation to perform. */
+static enum
+ {
+ oper_none,
+ oper_delete,
+ oper_move,
+ oper_print,
+ oper_qappend,
+ oper_replace,
+ oper_list,
+ oper_extract
+ } operation;
+
+/* Modifiers. */
+static bool verbose;
+static bool preserve_dates;
+static bool instance_specifed;
+static bool dont_replace_existing;
+static bool allow_truncate_fname;
+static bool force_symtab;
+static bool suppress_create_msg;
+static bool full_path;
+static bool update_newer;
+static enum { ipos_none, ipos_before, ipos_after } ipos;
+
+
+int
+main (int argc, char *argv[])
+{
+ /* We use no threads here which can interfere with handling a stream. */
+ (void) __fsetlocking (stdin, FSETLOCKING_BYCALLER);
+ (void) __fsetlocking (stdout, FSETLOCKING_BYCALLER);
+ (void) __fsetlocking (stderr, FSETLOCKING_BYCALLER);
+
+ /* Set locale. */
+ (void) setlocale (LC_ALL, "");
+
+ /* Make sure the message catalog can be found. */
+ (void) bindtextdomain (PACKAGE_TARNAME, LOCALEDIR);
+
+ /* Initialize the message catalog. */
+ (void) textdomain (PACKAGE_TARNAME);
+
+ /* For historical reasons the options in the first parameter need
+ not be preceded by a dash. Add it now if necessary. */
+ if (argc > 1 && argv[1][0] != '-')
+ {
+ size_t len = strlen (argv[1]) + 1;
+ char *newp = alloca (len + 1);
+ newp[0] = '-';
+ memcpy (&newp[1], argv[1], len);
+ argv[1] = newp;
+ }
+
+ /* Parse and process arguments. */
+ int remaining;
+ (void) argp_parse (&argp, argc, argv, ARGP_IN_ORDER, &remaining, NULL);
+
+ /* Tell the library which version we are expecting. */
+ (void) elf_version (EV_CURRENT);
+
+ /* Handle the [MEMBER] parameter. */
+ const char *member = NULL;
+ if (ipos != ipos_none)
+ {
+ /* Only valid for certain operations. */
+ if (operation != oper_move && operation != oper_replace)
+ error (1, 0, gettext ("\
+'a', 'b', and 'i' are only allowed with the 'm' and 'r' options"));
+
+ if (remaining == argc)
+ {
+ error (0, 0, gettext ("\
+MEMBER parameter required for 'a', 'b', and 'i' modifiers"));
+ argp_help (&argp, stderr, ARGP_HELP_USAGE | ARGP_HELP_SEE,
+ program_invocation_short_name);
+ exit (EXIT_FAILURE);
+ }
+
+ member = argv[remaining++];
+ }
+
+ /* Handle the [COUNT] parameter. */
+ long int instance = -1;
+ if (instance_specifed)
+ {
+ /* Only valid for certain operations. */
+ if (operation != oper_extract && operation != oper_delete)
+ error (1, 0, gettext ("\
+'N' is only meaningful with the 'x' and 'd' options"));
+
+ if (remaining == argc)
+ {
+ error (0, 0, gettext ("COUNT parameter required"));
+ argp_help (&argp, stderr, ARGP_HELP_SEE,
+ program_invocation_short_name);
+ exit (EXIT_FAILURE);
+ }
+
+ char *endp;
+ errno = 0;
+ if (((instance = strtol (argv[remaining], &endp, 10)) == LONG_MAX
+ && errno == ERANGE)
+ || instance <= 0
+ || *endp != '\0')
+ error (1, 0, gettext ("invalid COUNT parameter %s"), argv[remaining]);
+
+ ++remaining;
+ }
+
+ if ((dont_replace_existing || allow_truncate_fname)
+ && unlikely (operation != oper_extract))
+ error (1, 0, gettext ("'%c' is only meaningful with the 'x' option"),
+ dont_replace_existing ? 'C' : 'T');
+
+ /* There must at least be one more parameter specifying the archive. */
+ if (remaining == argc)
+ {
+ error (0, 0, gettext ("archive name required"));
+ argp_help (&argp, stderr, ARGP_HELP_SEE, program_invocation_short_name);
+ exit (EXIT_FAILURE);
+ }
+
+ const char *arfname = argv[remaining++];
+ argv += remaining;
+ argc -= remaining;
+
+ int status;
+ switch (operation)
+ {
+ case oper_none:
+ error (0, 0, gettext ("command option required"));
+ argp_help (&argp, stderr, ARGP_HELP_STD_ERR,
+ program_invocation_short_name);
+ status = 1;
+ break;
+
+ case oper_list:
+ case oper_print:
+ status = do_oper_extract (operation, arfname, argv, argc, -1);
+ break;
+
+ case oper_extract:
+ status = do_oper_extract (operation, arfname, argv, argc, instance);
+ break;
+
+ case oper_delete:
+ status = do_oper_delete (arfname, argv, argc, instance);
+ break;
+
+ case oper_move:
+ case oper_qappend:
+ case oper_replace:
+ status = do_oper_insert (operation, arfname, argv, argc, member);
+ break;
+
+ default:
+ assert (! "should not happen");
+ status = 1;
+ break;
+ }
+
+ return status;
+}
+
+
+/* Handle program arguments. */
+static error_t
+parse_opt (int key, char *arg __attribute__ ((unused)),
+ struct argp_state *state __attribute__ ((unused)))
+{
+ switch (key)
+ {
+ case 'd':
+ case 'm':
+ case 'p':
+ case 'q':
+ case 'r':
+ case 't':
+ case 'x':
+ if (operation != oper_none)
+ {
+ error (0, 0, gettext ("More than one operation specified"));
+ argp_help (&argp, stderr, ARGP_HELP_SEE,
+ program_invocation_short_name);
+ exit (EXIT_FAILURE);
+ }
+
+ switch (key)
+ {
+ case 'd':
+ operation = oper_delete;
+ break;
+ case 'm':
+ operation = oper_move;
+ break;
+ case 'p':
+ operation = oper_print;
+ break;
+ case 'q':
+ operation = oper_qappend;
+ break;
+ case 'r':
+ operation = oper_replace;
+ break;
+ case 't':
+ operation = oper_list;
+ break;
+ case 'x':
+ operation = oper_extract;
+ break;
+ }
+ break;
+
+ case 'a':
+ ipos = ipos_after;
+ break;
+
+ case 'b':
+ case 'i':
+ ipos = ipos_before;
+ break;
+
+ case 'c':
+ suppress_create_msg = true;
+ break;
+
+ case 'C':
+ dont_replace_existing = true;
+ break;
+
+ case 'N':
+ instance_specifed = true;
+ break;
+
+ case 'o':
+ preserve_dates = true;
+ break;
+
+ case 'P':
+ full_path = true;
+ break;
+
+ case 's':
+ force_symtab = true;
+ break;
+
+ case 'T':
+ allow_truncate_fname = true;
+ break;
+
+ case 'u':
+ update_newer = true;
+ break;
+
+ case 'v':
+ verbose = true;
+ break;
+
+ default:
+ return ARGP_ERR_UNKNOWN;
+ }
+ return 0;
+}
+
+
+static int
+open_archive (const char *arfname, int flags, int mode, Elf **elf,
+ struct stat *st, bool miss_allowed)
+{
+ int fd = open (arfname, flags, mode);
+ if (fd == -1)
+ {
+ if (miss_allowed)
+ return -1;
+
+ error (EXIT_FAILURE, errno, gettext ("cannot open archive '%s'"),
+ arfname);
+ }
+
+ if (elf != NULL)
+ {
+ Elf_Cmd cmd = flags == O_RDONLY ? ELF_C_READ_MMAP : ELF_C_RDWR_MMAP;
+
+ *elf = elf_begin (fd, cmd, NULL);
+ if (*elf == NULL)
+ error (EXIT_FAILURE, 0, gettext ("cannot open archive '%s': %s"),
+ arfname, elf_errmsg (-1));
+
+ if (flags == O_RDONLY && elf_kind (*elf) != ELF_K_AR)
+ error (EXIT_FAILURE, 0, gettext ("%s: not an archive file"), arfname);
+ }
+
+ if (st != NULL && fstat (fd, st) != 0)
+ error (EXIT_FAILURE, errno, gettext ("cannot stat archive '%s'"),
+ arfname);
+
+ return fd;
+}
+
+
+static void
+not_found (int argc, char *argv[argc], bool found[argc])
+{
+ for (int i = 0; i < argc; ++i)
+ if (!found[i])
+ printf (gettext ("no entry %s in archive\n"), argv[i]);
+}
+
+
+static int
+copy_content (Elf *elf, int newfd, off_t off, size_t n)
+{
+ size_t len;
+ char *rawfile = elf_rawfile (elf, &len);
+
+ assert (off + n <= len);
+
+ /* Tell the kernel we will read all the pages sequentially. */
+ size_t ps = sysconf (_SC_PAGESIZE);
+ if (n > 2 * ps)
+ posix_madvise (rawfile + (off & ~(ps - 1)), n, POSIX_MADV_SEQUENTIAL);
+
+ return write_retry (newfd, rawfile + off, n) != (ssize_t) n;
+}
+
+
+static int
+do_oper_extract (int oper, const char *arfname, char **argv, int argc,
+ long int instance)
+{
+ bool found[argc > 0 ? argc : 1];
+ memset (found, '\0', sizeof (found));
+
+ size_t name_max = 0;
+ inline bool should_truncate_fname (void)
+ {
+ if (errno == ENAMETOOLONG && allow_truncate_fname)
+ {
+ if (name_max == 0)
+ {
+ long int len = pathconf (".", _PC_NAME_MAX);
+ if (len > 0)
+ name_max = len;
+ }
+ return name_max != 0;
+ }
+ return false;
+ }
+
+ off_t index_off = -1;
+ size_t index_size = 0;
+ off_t cur_off = SARMAG;
+
+ int status = 0;
+ Elf *elf;
+ int fd = open_archive (arfname, O_RDONLY, 0, &elf, NULL, false);
+
+ if (hcreate (2 * argc) == 0)
+ error (EXIT_FAILURE, errno, gettext ("cannot create hash table"));
+
+ for (int cnt = 0; cnt < argc; ++cnt)
+ {
+ ENTRY entry = { .key = argv[cnt], .data = &argv[cnt] };
+ if (hsearch (entry, ENTER) == NULL)
+ error (EXIT_FAILURE, errno,
+ gettext ("cannot insert into hash table"));
+ }
+
+ struct stat st;
+ if (force_symtab)
+ {
+ if (fstat (fd, &st) != 0)
+ {
+ error (0, errno, gettext ("cannot stat '%s'"), arfname);
+ close (fd);
+ return 1;
+ }
+ arlib_init ();
+ }
+
+ Elf_Cmd cmd = ELF_C_READ_MMAP;
+ Elf *subelf;
+ while ((subelf = elf_begin (fd, cmd, elf)) != NULL)
+ {
+ Elf_Arhdr *arhdr = elf_getarhdr (subelf);
+
+ if (strcmp (arhdr->ar_name, "/") == 0)
+ {
+ index_off = elf_getaroff (subelf);
+ index_size = arhdr->ar_size;
+ goto next;
+ }
+ if (strcmp (arhdr->ar_name, "//") == 0)
+ goto next;
+
+ if (force_symtab)
+ {
+ arlib_add_symbols (elf, arfname, arhdr->ar_name, cur_off);
+ cur_off += (((arhdr->ar_size + 1) & ~((off_t) 1))
+ + sizeof (struct ar_hdr));
+ }
+
+ bool do_extract = argc <= 0;
+ if (!do_extract)
+ {
+ ENTRY entry;
+ entry.key = arhdr->ar_name;
+ ENTRY *res = hsearch (entry, FIND);
+ if (res != NULL && (instance < 0 || instance-- == 0)
+ && !found[(char **) res->data - argv])
+ found[(char **) res->data - argv] = do_extract = true;
+ }
+
+ if (do_extract)
+ {
+ if (verbose)
+ {
+ if (oper == oper_print)
+ {
+ printf ("\n<%s>\n\n", arhdr->ar_name);
+
+ /* We have to flush now because now we use the descriptor
+ directly. */
+ fflush (stdout);
+ }
+ else if (oper == oper_list)
+ {
+ char datestr[100];
+ strftime (datestr, sizeof (datestr), "%b %e %H:%M %Y",
+ localtime (&arhdr->ar_date));
+
+ printf ("%c%c%c%c%c%c%c%c%c %u/%u %6ju %s %s\n",
+ (arhdr->ar_mode & S_IRUSR) ? 'r' : '-',
+ (arhdr->ar_mode & S_IWUSR) ? 'w' : '-',
+ (arhdr->ar_mode & S_IXUSR)
+ ? ((arhdr->ar_mode & S_ISUID) ? 's' : 'x')
+ : ((arhdr->ar_mode & S_ISUID) ? 'S' : '-'),
+ (arhdr->ar_mode & S_IRGRP) ? 'r' : '-',
+ (arhdr->ar_mode & S_IWGRP) ? 'w' : '-',
+ (arhdr->ar_mode & S_IXGRP)
+ ? ((arhdr->ar_mode & S_ISGID) ? 's' : 'x')
+ : ((arhdr->ar_mode & S_ISGID) ? 'S' : '-'),
+ (arhdr->ar_mode & S_IROTH) ? 'r' : '-',
+ (arhdr->ar_mode & S_IWOTH) ? 'w' : '-',
+ (arhdr->ar_mode & S_IXOTH)
+ ? ((arhdr->ar_mode & S_ISVTX) ? 't' : 'x')
+ : ((arhdr->ar_mode & S_ISVTX) ? 'T' : '-'),
+ arhdr->ar_uid,
+ arhdr->ar_gid,
+ (uintmax_t) arhdr->ar_size,
+ datestr,
+ arhdr->ar_name);
+ }
+ else
+ printf ("x - %s\n", arhdr->ar_name);
+ }
+
+ if (oper == oper_list)
+ {
+ if (!verbose)
+ puts (arhdr->ar_name);
+
+ goto next;
+ }
+
+ size_t nleft;
+ char *data = elf_rawfile (subelf, &nleft);
+ if (data == NULL)
+ {
+ error (0, 0, gettext ("cannot read content of %s: %s"),
+ arhdr->ar_name, elf_errmsg (-1));
+ status = 1;
+ goto next;
+ }
+
+ int xfd;
+ char tempfname[] = "XXXXXX";
+ bool use_mkstemp = true;
+
+ if (oper == oper_print)
+ xfd = STDOUT_FILENO;
+ else
+ {
+ xfd = mkstemp (tempfname);
+ if (unlikely (xfd == -1))
+ {
+ /* We cannot create a temporary file. Try to overwrite
+ the file or create it if it does not exist. */
+ int flags = O_WRONLY | O_CREAT;
+ if (dont_replace_existing)
+ flags |= O_EXCL;
+ else
+ flags |= O_TRUNC;
+ xfd = open (arhdr->ar_name, flags, 0600);
+ if (unlikely (xfd == -1))
+ {
+ int printlen = INT_MAX;
+
+ if (should_truncate_fname ())
+ {
+ /* Try to truncate the name. First find out by how
+ much. */
+ printlen = name_max;
+ char truncfname[name_max + 1];
+ *((char *) mempcpy (truncfname, arhdr->ar_name,
+ name_max)) = '\0';
+
+ xfd = open (truncfname, flags, 0600);
+ }
+
+ if (xfd == -1)
+ {
+ error (0, errno, gettext ("cannot open %.*s"),
+ (int) printlen, arhdr->ar_name);
+ status = 1;
+ goto next;
+ }
+ }
+
+ use_mkstemp = false;
+ }
+ }
+
+ ssize_t n;
+ while ((n = TEMP_FAILURE_RETRY (write (xfd, data, nleft))) != -1)
+ {
+ nleft -= n;
+ if (nleft == 0)
+ break;
+ data += n;
+ }
+
+ if (unlikely (n == -1))
+ {
+ error (0, errno, gettext ("failed to write %s"), arhdr->ar_name);
+ status = 1;
+ unlink (tempfname);
+ close (xfd);
+ goto next;
+ }
+
+ if (oper != oper_print)
+ {
+ /* Fix up the mode. */
+ if (unlikely (fchmod (xfd, arhdr->ar_mode) != 0))
+ {
+ error (0, errno, gettext ("cannot change mode of %s"),
+ arhdr->ar_name);
+ status = 0;
+ }
+
+ if (preserve_dates)
+ {
+ struct timespec tv[2];
+ tv[0].tv_sec = arhdr->ar_date;
+ tv[0].tv_nsec = 0;
+ tv[1].tv_sec = arhdr->ar_date;
+ tv[1].tv_nsec = 0;
+
+ if (unlikely (futimens (xfd, tv) != 0))
+ {
+ error (0, errno,
+ gettext ("cannot change modification time of %s"),
+ arhdr->ar_name);
+ status = 1;
+ }
+ }
+
+ /* If we used a temporary file, move it do the right
+ name now. */
+ if (use_mkstemp)
+ {
+ int r;
+
+ if (dont_replace_existing)
+ {
+ r = link (tempfname, arhdr->ar_name);
+ if (likely (r == 0))
+ unlink (tempfname);
+ }
+ else
+ r = rename (tempfname, arhdr->ar_name);
+
+ if (unlikely (r) != 0)
+ {
+ int printlen = INT_MAX;
+
+ if (should_truncate_fname ())
+ {
+ /* Try to truncate the name. First find out by how
+ much. */
+ printlen = name_max;
+ char truncfname[name_max + 1];
+ *((char *) mempcpy (truncfname, arhdr->ar_name,
+ name_max)) = '\0';
+
+ if (dont_replace_existing)
+ {
+ r = link (tempfname, truncfname);
+ if (likely (r == 0))
+ unlink (tempfname);
+ }
+ else
+ r = rename (tempfname, truncfname);
+ }
+
+ if (r != 0)
+ {
+ error (0, errno, gettext ("\
+cannot rename temporary file to %.*s"),
+ printlen, arhdr->ar_name);
+ unlink (tempfname);
+ status = 1;
+ }
+ }
+ }
+
+ close (xfd);
+ }
+ }
+
+ next:
+ cmd = elf_next (subelf);
+ if (elf_end (subelf) != 0)
+ error (1, 0, "%s: %s", arfname, elf_errmsg (-1));
+ }
+
+ hdestroy ();
+
+ if (force_symtab)
+ {
+ arlib_finalize ();
+
+ if (symtab.symsnamelen != 0
+ /* We have to rewrite the file also if it initially had an index
+ but now does not need one anymore. */
+ || (symtab.symsnamelen == 0 && index_size != 0))
+ {
+ char tmpfname[strlen (arfname) + 7];
+ strcpy (stpcpy (tmpfname, arfname), "XXXXXX");
+ int newfd = mkstemp (tmpfname);
+ if (unlikely (newfd == -1))
+ {
+ nonew:
+ error (0, errno, gettext ("cannot create new file"));
+ status = 1;
+ }
+ else
+ {
+ /* Create the header. */
+ if (unlikely (write_retry (newfd, ARMAG, SARMAG) != SARMAG))
+ {
+ // XXX Use /prof/self/fd/%d ???
+ nonew_unlink:
+ unlink (tmpfname);
+ if (newfd != -1)
+ close (newfd);
+ goto nonew;
+ }
+
+ /* Create the new file. There are three parts as far we are
+ concerned: 1. original context before the index, 2. the
+ new index, 3. everything after the new index. */
+ off_t rest_off;
+ if (index_off != -1)
+ rest_off = (index_off + sizeof (struct ar_hdr)
+ + ((index_size + 1) & ~1ul));
+ else
+ rest_off = SARMAG;
+
+ if ((symtab.symsnamelen != 0
+ && ((write_retry (newfd, symtab.symsoff,
+ symtab.symsofflen)
+ != (ssize_t) symtab.symsofflen)
+ || (write_retry (newfd, symtab.symsname,
+ symtab.symsnamelen)
+ != (ssize_t) symtab.symsnamelen)))
+ /* Even if the original file had content before the
+ symbol table, we write it in the correct order. */
+ || (index_off != SARMAG
+ && copy_content (elf, newfd, SARMAG, index_off - SARMAG))
+ || copy_content (elf, newfd, rest_off, st.st_size - rest_off)
+ /* Set the mode of the new file to the same values the
+ original file has. */
+ || fchmod (newfd, st.st_mode & ALLPERMS) != 0
+ /* Never complain about fchown failing. */
+ || (({asm ("" :: "r" (fchown (newfd, st.st_uid,
+ st.st_gid))); }),
+ close (newfd) != 0)
+ || (newfd = -1, rename (tmpfname, arfname) != 0))
+ goto nonew_unlink;
+ }
+ }
+ }
+
+ elf_end (elf);
+
+ close (fd);
+
+ not_found (argc, argv, found);
+
+ return status;
+}
+
+
+struct armem
+{
+ off_t off;
+ off_t old_off;
+ size_t size;
+ long int long_name_off;
+ struct armem *next;
+ void *mem;
+ time_t sec;
+ uid_t uid;
+ gid_t gid;
+ mode_t mode;
+ const char *name;
+ Elf *elf;
+};
+
+
+static int
+write_member (struct armem *memb, off_t *startp, off_t *lenp, Elf *elf,
+ off_t end_off, int newfd)
+{
+ struct ar_hdr arhdr;
+ /* The ar_name is not actually zero teminated, but we need that for
+ snprintf. Also if the name is too long, then the string starts
+ with '/' plus an index off number (decimal). */
+ char tmpbuf[sizeof (arhdr.ar_name) + 2];
+
+ bool changed_header = memb->long_name_off != -1;
+ if (changed_header)
+ {
+ /* In case of a long file name we assume the archive header
+ changed and we write it here. */
+ memcpy (&arhdr, elf_rawfile (elf, NULL) + *startp, sizeof (arhdr));
+
+ snprintf (tmpbuf, sizeof (tmpbuf), "/%-*ld",
+ (int) sizeof (arhdr.ar_name), memb->long_name_off);
+ changed_header = memcmp (arhdr.ar_name, tmpbuf,
+ sizeof (arhdr.ar_name)) != 0;
+ }
+
+ /* If the files are adjacent in the old file extend the range. */
+ if (*startp != -1 && !changed_header && *startp + *lenp == memb->old_off)
+ {
+ /* Extend the current range. */
+ *lenp += (memb->next != NULL
+ ? memb->next->off : end_off) - memb->off;
+ return 0;
+ }
+
+ /* Write out the old range. */
+ if (*startp != -1 && copy_content (elf, newfd, *startp, *lenp))
+ return -1;
+
+ *startp = memb->old_off;
+ *lenp = (memb->next != NULL ? memb->next->off : end_off) - memb->off;
+
+ if (changed_header)
+ {
+ memcpy (arhdr.ar_name, tmpbuf, sizeof (arhdr.ar_name));
+
+ if (unlikely (write_retry (newfd, &arhdr, sizeof (arhdr))
+ != sizeof (arhdr)))
+ return -1;
+
+ *startp += sizeof (struct ar_hdr);
+ assert ((size_t) *lenp >= sizeof (struct ar_hdr));
+ *lenp -= sizeof (struct ar_hdr);
+ }
+
+ return 0;
+}
+
+/* Store the name in the long name table if necessary.
+ Record its offset or -1 if we did not need to use the table. */
+static void
+remember_long_name (struct armem *mem, const char *name, size_t namelen)
+{
+ mem->long_name_off = (namelen > MAX_AR_NAME_LEN
+ ? arlib_add_long_name (name, namelen)
+ : -1l);
+}
+
+static int
+do_oper_delete (const char *arfname, char **argv, int argc,
+ long int instance)
+{
+ bool *found = alloca (sizeof (bool) * argc);
+ memset (found, '\0', sizeof (bool) * argc);
+
+ /* List of the files we keep. */
+ struct armem *to_copy = NULL;
+
+ int status = 0;
+ Elf *elf;
+ struct stat st;
+ int fd = open_archive (arfname, O_RDONLY, 0, &elf, &st, false);
+
+ if (hcreate (2 * argc) == 0)
+ error (EXIT_FAILURE, errno, gettext ("cannot create hash table"));
+
+ for (int cnt = 0; cnt < argc; ++cnt)
+ {
+ ENTRY entry = { .key = argv[cnt], .data = &argv[cnt] };
+ if (hsearch (entry, ENTER) == NULL)
+ error (EXIT_FAILURE, errno,
+ gettext ("cannot insert into hash table"));
+ }
+
+ arlib_init ();
+
+ off_t cur_off = SARMAG;
+ Elf_Cmd cmd = ELF_C_READ_MMAP;
+ Elf *subelf;
+ while ((subelf = elf_begin (fd, cmd, elf)) != NULL)
+ {
+ Elf_Arhdr *arhdr = elf_getarhdr (subelf);
+
+ /* Ignore the symbol table and the long file name table here. */
+ if (strcmp (arhdr->ar_name, "/") == 0
+ || strcmp (arhdr->ar_name, "//") == 0)
+ goto next;
+
+ bool do_delete = argc <= 0;
+ if (!do_delete)
+ {
+ ENTRY entry;
+ entry.key = arhdr->ar_name;
+ ENTRY *res = hsearch (entry, FIND);
+ if (res != NULL && (instance < 0 || instance-- == 0)
+ && !found[(char **) res->data - argv])
+ found[(char **) res->data - argv] = do_delete = true;
+ }
+
+ if (do_delete)
+ {
+ if (verbose)
+ printf ("d - %s\n", arhdr->ar_name);
+ }
+ else
+ {
+ struct armem *newp = alloca (sizeof (struct armem));
+ newp->old_off = elf_getaroff (subelf);
+ newp->off = cur_off;
+
+ cur_off += (((arhdr->ar_size + 1) & ~((off_t) 1))
+ + sizeof (struct ar_hdr));
+
+ if (to_copy == NULL)
+ to_copy = newp->next = newp;
+ else
+ {
+ newp->next = to_copy->next;
+ to_copy = to_copy->next = newp;
+ }
+
+ /* If we recreate the symbol table read the file's symbol
+ table now. */
+ arlib_add_symbols (subelf, arfname, arhdr->ar_name, newp->off);
+
+ /* Remember long file names. */
+ remember_long_name (newp, arhdr->ar_name, strlen (arhdr->ar_name));
+ }
+
+ next:
+ cmd = elf_next (subelf);
+ if (elf_end (subelf) != 0)
+ error (1, 0, "%s: %s", arfname, elf_errmsg (-1));
+ }
+
+ arlib_finalize ();
+
+ hdestroy ();
+
+ /* Create a new, temporary file in the same directory as the
+ original file. */
+ char tmpfname[strlen (arfname) + 7];
+ strcpy (stpcpy (tmpfname, arfname), "XXXXXX");
+ int newfd = mkstemp (tmpfname);
+ if (unlikely (newfd == -1))
+ goto nonew;
+
+ /* Create the header. */
+ if (unlikely (write_retry (newfd, ARMAG, SARMAG) != SARMAG))
+ {
+ // XXX Use /prof/self/fd/%d ???
+ nonew_unlink:
+ unlink (tmpfname);
+ if (newfd != -1)
+ close (newfd);
+ nonew:
+ error (0, errno, gettext ("cannot create new file"));
+ status = 1;
+ goto errout;
+ }
+
+ /* If the archive is empty that is all we have to do. */
+ if (likely (to_copy != NULL))
+ {
+ /* Write the symbol table or the long file name table or both. */
+ if (symtab.symsnamelen != 0
+ && ((write_retry (newfd, symtab.symsoff, symtab.symsofflen)
+ != (ssize_t) symtab.symsofflen)
+ || (write_retry (newfd, symtab.symsname, symtab.symsnamelen)
+ != (ssize_t) symtab.symsnamelen)))
+ goto nonew_unlink;
+
+ if (symtab.longnameslen > sizeof (struct ar_hdr)
+ && (write_retry (newfd, symtab.longnames, symtab.longnameslen)
+ != (ssize_t) symtab.longnameslen))
+ goto nonew_unlink;
+
+ /* NULL-terminate the list of files to copy. */
+ struct armem *last = to_copy;
+ to_copy = to_copy->next;
+ last->next = NULL;
+
+ off_t start = -1;
+ off_t len = -1;
+
+ do
+ if (write_member (to_copy, &start, &len, elf, cur_off, newfd) != 0)
+ goto nonew_unlink;
+ while ((to_copy = to_copy->next) != NULL);
+
+ /* Write the last part. */
+ if (copy_content (elf, newfd, start, len))
+ goto nonew_unlink;
+ }
+
+ /* Set the mode of the new file to the same values the original file
+ has. */
+ if (fchmod (newfd, st.st_mode & ALLPERMS) != 0
+ /* Never complain about fchown failing. */
+ || (({asm ("" :: "r" (fchown (newfd, st.st_uid, st.st_gid))); }),
+ close (newfd) != 0)
+ || (newfd = -1, rename (tmpfname, arfname) != 0))
+ goto nonew_unlink;
+
+ errout:
+ elf_end (elf);
+
+ arlib_fini ();
+
+ close (fd);
+
+ not_found (argc, argv, found);
+
+ return status;
+}
+
+
+/* Prints the given value in the given buffer without a trailing zero char.
+ Returns false if the given value doesn't fit in the given buffer. */
+static bool
+no0print (bool ofmt, char *buf, int bufsize, long int val)
+{
+ char tmpbuf[bufsize + 1];
+ int ret = snprintf (tmpbuf, sizeof (tmpbuf), ofmt ? "%-*lo" : "%-*ld",
+ bufsize, val);
+ if (ret >= (int) sizeof (tmpbuf))
+ return false;
+ memcpy (buf, tmpbuf, bufsize);
+ return true;
+}
+
+
+static int
+do_oper_insert (int oper, const char *arfname, char **argv, int argc,
+ const char *member)
+{
+ int status = 0;
+ Elf *elf = NULL;
+ struct stat st;
+ int fd = open_archive (arfname, O_RDONLY, 0, &elf, &st, oper != oper_move);
+
+ /* List of the files we keep. */
+ struct armem *all = NULL;
+ struct armem *after_memberelem = NULL;
+ struct armem **found = alloca (sizeof (*found) * argc);
+ memset (found, '\0', sizeof (*found) * argc);
+
+ arlib_init ();
+
+ /* Initialize early for no_old case. */
+ off_t cur_off = SARMAG;
+
+ if (fd == -1)
+ {
+ if (!suppress_create_msg)
+ fprintf (stderr, "%s: creating %s\n",
+ program_invocation_short_name, arfname);
+
+ goto no_old;
+ }
+
+ /* Store the names of all files from the command line in a hash
+ table so that we can match it. Note that when no file name is
+ given we are basically doing nothing except recreating the
+ index. */
+ if (oper != oper_qappend)
+ {
+ if (hcreate (2 * argc) == 0)
+ error (EXIT_FAILURE, errno, gettext ("cannot create hash table"));
+
+ for (int cnt = 0; cnt < argc; ++cnt)
+ {
+ ENTRY entry;
+ entry.key = full_path ? argv[cnt] : basename (argv[cnt]);
+ entry.data = &argv[cnt];
+ if (hsearch (entry, ENTER) == NULL)
+ error (EXIT_FAILURE, errno,
+ gettext ("cannot insert into hash table"));
+ }
+ }
+
+ /* While iterating over the current content of the archive we must
+ determine a number of things: which archive members to keep,
+ which are replaced, and where to insert the new members. */
+ Elf_Cmd cmd = ELF_C_READ_MMAP;
+ Elf *subelf;
+ while ((subelf = elf_begin (fd, cmd, elf)) != NULL)
+ {
+ Elf_Arhdr *arhdr = elf_getarhdr (subelf);
+
+ /* Ignore the symbol table and the long file name table here. */
+ if (strcmp (arhdr->ar_name, "/") == 0
+ || strcmp (arhdr->ar_name, "//") == 0)
+ goto next;
+
+ struct armem *newp = alloca (sizeof (struct armem));
+ newp->old_off = elf_getaroff (subelf);
+ newp->size = arhdr->ar_size;
+ newp->sec = arhdr->ar_date;
+ newp->mem = NULL;
+
+ /* Remember long file names. */
+ remember_long_name (newp, arhdr->ar_name, strlen (arhdr->ar_name));
+
+ /* Check whether this is a file we are looking for. */
+ if (oper != oper_qappend)
+ {
+ /* Check whether this is the member used as the insert point. */
+ if (member != NULL && strcmp (arhdr->ar_name, member) == 0)
+ {
+ /* Note that all == NULL means insert at the beginning. */
+ if (ipos == ipos_before)
+ after_memberelem = all;
+ else
+ after_memberelem = newp;
+ member = NULL;
+ }
+
+ ENTRY entry;
+ entry.key = arhdr->ar_name;
+ ENTRY *res = hsearch (entry, FIND);
+ if (res != NULL && found[(char **) res->data - argv] == NULL)
+ {
+ found[(char **) res->data - argv] = newp;
+
+ /* If we insert before or after a certain element move
+ all files to a special list. */
+ if (unlikely (ipos != ipos_none || oper == oper_move))
+ {
+ if (after_memberelem == newp)
+ /* Since we remove this element even though we should
+ insert everything after it, we in fact insert
+ everything after the previous element. */
+ after_memberelem = all;
+
+ goto next;
+ }
+ }
+ }
+
+ if (all == NULL)
+ all = newp->next = newp;
+ else
+ {
+ newp->next = all->next;
+ all = all->next = newp;
+ }
+
+ next:
+ cmd = elf_next (subelf);
+ if (elf_end (subelf) != 0)
+ error (EXIT_FAILURE, 0, "%s: %s", arfname, elf_errmsg (-1));
+ }
+
+ if (oper != oper_qappend)
+ hdestroy ();
+
+ no_old:
+ if (member != NULL)
+ error (EXIT_FAILURE, 0, gettext ("position member %s not found"),
+ member);
+
+ if (oper == oper_move)
+ {
+ /* Make sure all requested elements are found in the archive. */
+ for (int cnt = 0; cnt < argc; ++cnt)
+ {
+ if (found[cnt] == NULL)
+ {
+ fprintf (stderr, gettext ("%s: no entry %s in archive!\n"),
+ program_invocation_short_name, argv[cnt]);
+ status = 1;
+ }
+
+ if (verbose)
+ printf ("m - %s\n", argv[cnt]);
+ }
+ }
+ else
+ {
+ /* Open all the new files, get their sizes and add all symbols. */
+ for (int cnt = 0; cnt < argc; ++cnt)
+ {
+ const char *bname = basename (argv[cnt]);
+ size_t bnamelen = strlen (bname);
+ if (found[cnt] == NULL)
+ {
+ found[cnt] = alloca (sizeof (struct armem));
+ found[cnt]->old_off = -1;
+
+ remember_long_name (found[cnt], bname, bnamelen);
+ }
+
+ struct stat newst;
+ Elf *newelf;
+ int newfd = open (argv[cnt], O_RDONLY);
+ if (newfd == -1)
+ {
+ error (0, errno, gettext ("cannot open %s"), argv[cnt]);
+ status = 1;
+ }
+ else if (fstat (newfd, &newst) == -1)
+ {
+ error (0, errno, gettext ("cannot stat %s"), argv[cnt]);
+ close (newfd);
+ status = 1;
+ }
+ else if (!S_ISREG (newst.st_mode))
+ {
+ error (0, errno, gettext ("%s is no regular file"), argv[cnt]);
+ close (newfd);
+ status = 1;
+ }
+ else if (update_newer
+ && found[cnt]->old_off != -1l
+ && found[cnt]->sec > st.st_mtime)
+ /* Do nothing, the file in the archive is younger. */
+ close (newfd);
+ else if ((newelf = elf_begin (newfd, ELF_C_READ_MMAP, NULL))
+ == NULL)
+ {
+ fprintf (stderr,
+ gettext ("cannot get ELF descriptor for %s: %s\n"),
+ argv[cnt], elf_errmsg (-1));
+ status = 1;
+ }
+ else
+ {
+ if (verbose)
+ printf ("%c - %s\n",
+ found[cnt]->old_off == -1l ? 'a' : 'r', argv[cnt]);
+
+ found[cnt]->elf = newelf;
+ found[cnt]->sec = arlib_deterministic_output ? 0 : newst.st_mtime;
+ found[cnt]->uid = arlib_deterministic_output ? 0 : newst.st_uid;
+ found[cnt]->gid = arlib_deterministic_output ? 0 : newst.st_gid;
+ found[cnt]->mode = newst.st_mode;
+ found[cnt]->name = bname;
+
+ found[cnt]->mem = elf_rawfile (newelf, &found[cnt]->size);
+ if (found[cnt]->mem == NULL
+ || elf_cntl (newelf, ELF_C_FDDONE) != 0)
+ error (EXIT_FAILURE, 0, gettext ("cannot read %s: %s"),
+ argv[cnt], elf_errmsg (-1));
+
+ close (newfd);
+
+ if (found[cnt]->old_off != -1l)
+ /* Remember long file names. */
+ remember_long_name (found[cnt], bname, bnamelen);
+ }
+ }
+ }
+
+ if (status != 0)
+ {
+ elf_end (elf);
+
+ arlib_fini ();
+
+ close (fd);
+
+ return status;
+ }
+
+ /* If we have no entry point so far add at the end. AFTER_MEMBERELEM
+ being NULL when adding before an entry means add at the beginning. */
+ if (ipos != ipos_before && after_memberelem == NULL)
+ after_memberelem = all;
+
+ /* Convert the circular list into a normal list first. */
+ if (all != NULL)
+ {
+ struct armem *tmp = all;
+ all = all->next;
+ tmp->next = NULL;
+ }
+
+ struct armem *last_added = after_memberelem;
+ for (int cnt = 0; cnt < argc; ++cnt)
+ if (oper != oper_replace || found[cnt]->old_off == -1)
+ {
+ if (last_added == NULL)
+ {
+ found[cnt]->next = all;
+ last_added = all = found[cnt];
+ }
+ else
+ {
+ found[cnt]->next = last_added->next;
+ last_added = last_added->next = found[cnt];
+ }
+ }
+
+ /* Finally compute the offset and add the symbols for the files
+ after the insert point. */
+ if (likely (all != NULL))
+ for (struct armem *memp = all; memp != NULL; memp = memp->next)
+ {
+ memp->off = cur_off;
+
+ if (memp->mem == NULL)
+ {
+ Elf_Arhdr *arhdr;
+ /* Fake initializing arhdr and subelf to keep gcc calm. */
+ asm ("" : "=m" (arhdr), "=m" (subelf));
+ if (elf_rand (elf, memp->old_off) == 0
+ || (subelf = elf_begin (fd, ELF_C_READ_MMAP, elf)) == NULL
+ || (arhdr = elf_getarhdr (subelf)) == NULL)
+ /* This should never happen since we already looked at the
+ archive content. But who knows... */
+ error (EXIT_FAILURE, 0, "%s: %s", arfname, elf_errmsg (-1));
+
+ arlib_add_symbols (subelf, arfname, arhdr->ar_name, cur_off);
+
+ elf_end (subelf);
+ }
+ else
+ arlib_add_symbols (memp->elf, arfname, memp->name, cur_off);
+
+ cur_off += (((memp->size + 1) & ~((off_t) 1))
+ + sizeof (struct ar_hdr));
+ }
+
+ /* Now we have all the information for the symbol table and long
+ file name table. Construct the final layout. */
+ arlib_finalize ();
+
+ /* Create a new, temporary file in the same directory as the
+ original file. */
+ char tmpfname[strlen (arfname) + 7];
+ strcpy (stpcpy (tmpfname, arfname), "XXXXXX");
+ int newfd;
+ if (fd != -1)
+ newfd = mkstemp (tmpfname);
+ else
+ {
+ newfd = open (arfname, O_RDWR | O_CREAT | O_EXCL, DEFFILEMODE);
+ if (newfd == -1 && errno == EEXIST)
+ /* Bah, first the file did not exist, now it does. Restart. */
+ return do_oper_insert (oper, arfname, argv, argc, member);
+ }
+ if (unlikely (newfd == -1))
+ goto nonew;
+
+ /* Create the header. */
+ if (unlikely (write_retry (newfd, ARMAG, SARMAG) != SARMAG))
+ {
+ nonew_unlink:
+ if (fd != -1)
+ {
+ // XXX Use /prof/self/fd/%d ???
+ unlink (tmpfname);
+ if (newfd != -1)
+ close (newfd);
+ }
+ nonew:
+ error (0, errno, gettext ("cannot create new file"));
+ status = 1;
+ goto errout;
+ }
+
+ /* If the new archive is not empty we actually have something to do. */
+ if (likely (all != NULL))
+ {
+ /* Write the symbol table or the long file name table or both. */
+ if (symtab.symsnamelen != 0
+ && ((write_retry (newfd, symtab.symsoff, symtab.symsofflen)
+ != (ssize_t) symtab.symsofflen)
+ || (write_retry (newfd, symtab.symsname, symtab.symsnamelen)
+ != (ssize_t) symtab.symsnamelen)))
+ goto nonew_unlink;
+
+ if (symtab.longnameslen > sizeof (struct ar_hdr)
+ && (write_retry (newfd, symtab.longnames, symtab.longnameslen)
+ != (ssize_t) symtab.longnameslen))
+ goto nonew_unlink;
+
+ off_t start = -1;
+ off_t len = -1;
+
+ while (all != NULL)
+ {
+ if (all->mem != NULL)
+ {
+ /* This is a new file. If there is anything from the
+ archive left to be written do it now. */
+ if (start != -1 && copy_content (elf, newfd, start, len))
+ goto nonew_unlink;
+
+ start = -1;
+ len = -1;
+
+ /* Create the header. */
+ struct ar_hdr arhdr;
+ /* The ar_name is not actually zero teminated, but we
+ need that for snprintf. Also if the name is too
+ long, then the string starts with '/' plus an index
+ off number (decimal). */
+ char tmpbuf[sizeof (arhdr.ar_name) + 2];
+ if (all->long_name_off == -1)
+ {
+ size_t namelen = strlen (all->name);
+ char *p = mempcpy (arhdr.ar_name, all->name, namelen);
+ *p++ = '/';
+ memset (p, ' ', sizeof (arhdr.ar_name) - namelen - 1);
+ }
+ else
+ {
+ snprintf (tmpbuf, sizeof (tmpbuf), "/%-*ld",
+ (int) sizeof (arhdr.ar_name), all->long_name_off);
+ memcpy (arhdr.ar_name, tmpbuf, sizeof (arhdr.ar_name));
+ }
+
+ if (! no0print (false, arhdr.ar_date, sizeof (arhdr.ar_date),
+ all->sec))
+ {
+ error (0, errno, gettext ("cannot represent ar_date"));
+ goto nonew_unlink;
+ }
+ if (! no0print (false, arhdr.ar_uid, sizeof (arhdr.ar_uid),
+ all->uid))
+ {
+ error (0, errno, gettext ("cannot represent ar_uid"));
+ goto nonew_unlink;
+ }
+ if (! no0print (false, arhdr.ar_gid, sizeof (arhdr.ar_gid),
+ all->gid))
+ {
+ error (0, errno, gettext ("cannot represent ar_gid"));
+ goto nonew_unlink;
+ }
+ if (! no0print (true, arhdr.ar_mode, sizeof (arhdr.ar_mode),
+ all->mode))
+ {
+ error (0, errno, gettext ("cannot represent ar_mode"));
+ goto nonew_unlink;
+ }
+ if (! no0print (false, arhdr.ar_size, sizeof (arhdr.ar_size),
+ all->size))
+ {
+ error (0, errno, gettext ("cannot represent ar_size"));
+ goto nonew_unlink;
+ }
+ memcpy (arhdr.ar_fmag, ARFMAG, sizeof (arhdr.ar_fmag));
+
+ if (unlikely (write_retry (newfd, &arhdr, sizeof (arhdr))
+ != sizeof (arhdr)))
+ goto nonew_unlink;
+
+ /* Now the file itself. */
+ if (unlikely (write_retry (newfd, all->mem, all->size)
+ != (off_t) all->size))
+ goto nonew_unlink;
+
+ /* Pad the file if its size is odd. */
+ if ((all->size & 1) != 0)
+ if (unlikely (write_retry (newfd, "\n", 1) != 1))
+ goto nonew_unlink;
+ }
+ else
+ {
+ /* This is a member from the archive. */
+ if (write_member (all, &start, &len, elf, cur_off, newfd)
+ != 0)
+ goto nonew_unlink;
+ }
+
+ all = all->next;
+ }
+
+ /* Write the last part. */
+ if (start != -1 && copy_content (elf, newfd, start, len))
+ goto nonew_unlink;
+ }
+
+ /* Set the mode of the new file to the same values the original file
+ has. */
+ if (fd != -1
+ && (fchmod (newfd, st.st_mode & ALLPERMS) != 0
+ /* Never complain about fchown failing. */
+ || (({asm ("" :: "r" (fchown (newfd, st.st_uid, st.st_gid))); }),
+ close (newfd) != 0)
+ || (newfd = -1, rename (tmpfname, arfname) != 0)))
+ goto nonew_unlink;
+
+ errout:
+ for (int cnt = 0; cnt < argc; ++cnt)
+ elf_end (found[cnt]->elf);
+
+ elf_end (elf);
+
+ arlib_fini ();
+
+ if (fd != -1)
+ close (fd);
+
+ return status;
+}
+
+
+#include "debugpred.h"