/* bucomm.c -- Bin Utils COMmon code.
- Copyright 1991, 1992, 1993, 1994, 1995, 1997, 1998, 2000, 2001, 2002
- Free Software Foundation, Inc.
+ Copyright (C) 1991-2020 Free Software Foundation, Inc.
This file is part of GNU Binutils.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
\f
/* We might put this in a library someday so it could be dynamically
loaded, but for now it's not necessary. */
+#include "sysdep.h"
#include "bfd.h"
#include "libiberty.h"
-#include "bucomm.h"
#include "filenames.h"
-#include <sys/stat.h>
#include <time.h> /* ctime, maybe time_t */
+#include <assert.h>
+#include "bucomm.h"
#ifndef HAVE_TIME_T_IN_TIME_H
#ifndef HAVE_TIME_T_IN_TYPES_H
#endif
#endif
\f
-/* Error reporting */
+/* Error reporting. */
char *program_name;
void
-bfd_nonfatal (string)
- const char *string;
+bfd_nonfatal (const char *string)
{
- const char *errmsg = bfd_errmsg (bfd_get_error ());
+ const char *errmsg;
+ enum bfd_error err = bfd_get_error ();
+ if (err == bfd_error_no_error)
+ errmsg = _("cause of error unknown");
+ else
+ errmsg = bfd_errmsg (err);
+ fflush (stdout);
if (string)
fprintf (stderr, "%s: %s: %s\n", program_name, string, errmsg);
else
fprintf (stderr, "%s: %s\n", program_name, errmsg);
}
+/* Issue a non fatal error message. FILENAME, or if NULL then BFD,
+ are used to indicate the problematic file. SECTION, if non NULL,
+ is used to provide a section name. If FORMAT is non-null, then it
+ is used to print additional information via vfprintf. Finally the
+ bfd error message is printed. In summary, error messages are of
+ one of the following forms:
+
+ PROGRAM: file: bfd-error-message
+ PROGRAM: file[section]: bfd-error-message
+ PROGRAM: file: printf-message: bfd-error-message
+ PROGRAM: file[section]: printf-message: bfd-error-message. */
+
+void
+bfd_nonfatal_message (const char *filename,
+ const bfd *abfd,
+ const asection *section,
+ const char *format, ...)
+{
+ const char *errmsg;
+ const char *section_name;
+ va_list args;
+ enum bfd_error err = bfd_get_error ();
+
+ if (err == bfd_error_no_error)
+ errmsg = _("cause of error unknown");
+ else
+ errmsg = bfd_errmsg (err);
+ fflush (stdout);
+ section_name = NULL;
+ va_start (args, format);
+ fprintf (stderr, "%s", program_name);
+
+ if (abfd)
+ {
+ if (!filename)
+ filename = bfd_get_archive_filename (abfd);
+ if (section)
+ section_name = bfd_section_name (section);
+ }
+ if (section_name)
+ fprintf (stderr, ": %s[%s]", filename, section_name);
+ else
+ fprintf (stderr, ": %s", filename);
+
+ if (format)
+ {
+ fprintf (stderr, ": ");
+ vfprintf (stderr, format, args);
+ }
+ fprintf (stderr, ": %s\n", errmsg);
+ va_end (args);
+}
+
void
-bfd_fatal (string)
- const char *string;
+bfd_fatal (const char *string)
{
bfd_nonfatal (string);
xexit (1);
}
void
-report (format, args)
- const char * format;
- va_list args;
+report (const char * format, va_list args)
{
+ fflush (stdout);
fprintf (stderr, "%s: ", program_name);
vfprintf (stderr, format, args);
putc ('\n', stderr);
}
void
-fatal VPARAMS ((const char *format, ...))
+fatal (const char *format, ...)
{
- VA_OPEN (args, format);
- VA_FIXEDARG (args, const char *, format);
+ va_list args;
+
+ va_start (args, format);
report (format, args);
- VA_CLOSE (args);
+ va_end (args);
xexit (1);
}
void
-non_fatal VPARAMS ((const char *format, ...))
+non_fatal (const char *format, ...)
{
- VA_OPEN (args, format);
- VA_FIXEDARG (args, const char *, format);
+ va_list args;
+
+ va_start (args, format);
report (format, args);
- VA_CLOSE (args);
+ va_end (args);
}
/* Set the default BFD target based on the configured target. Doing
different target. */
void
-set_default_bfd_target ()
+set_default_bfd_target (void)
{
/* The macro TARGET is defined by Makefile. */
const char *target = TARGET;
target, bfd_errmsg (bfd_get_error ()));
}
-/* After a false return from bfd_check_format_matches with
+/* After a FALSE return from bfd_check_format_matches with
bfd_get_error () == bfd_error_file_ambiguously_recognized, print
the possible matching targets. */
void
-list_matching_formats (p)
- char **p;
+list_matching_formats (char **p)
{
+ fflush (stdout);
fprintf (stderr, _("%s: Matching formats:"), program_name);
while (*p)
fprintf (stderr, " %s", *p++);
/* List the supported targets. */
void
-list_supported_targets (name, f)
- const char *name;
- FILE *f;
+list_supported_targets (const char *name, FILE *f)
{
- extern const bfd_target *const *bfd_target_vector;
int t;
+ const char **targ_names;
if (name == NULL)
fprintf (f, _("Supported targets:"));
else
fprintf (f, _("%s: supported targets:"), name);
- for (t = 0; bfd_target_vector[t] != NULL; t++)
- fprintf (f, " %s", bfd_target_vector[t]->name);
+
+ targ_names = bfd_target_list ();
+ for (t = 0; targ_names[t] != NULL; t++)
+ fprintf (f, " %s", targ_names[t]);
fprintf (f, "\n");
+ free (targ_names);
}
/* List the supported architectures. */
void
-list_supported_architectures (name, f)
- const char *name;
- FILE *f;
+list_supported_architectures (const char *name, FILE *f)
{
- const char** arch;
+ const char ** arch;
+ const char ** arches;
if (name == NULL)
fprintf (f, _("Supported architectures:"));
else
fprintf (f, _("%s: supported architectures:"), name);
- for (arch = bfd_arch_list (); *arch; arch++)
+ for (arch = arches = bfd_arch_list (); *arch; arch++)
fprintf (f, " %s", *arch);
fprintf (f, "\n");
+ free (arches);
+}
+\f
+static const char *
+endian_string (enum bfd_endian endian)
+{
+ switch (endian)
+ {
+ case BFD_ENDIAN_BIG: return _("big endian");
+ case BFD_ENDIAN_LITTLE: return _("little endian");
+ default: return _("endianness unknown");
+ }
+}
+
+/* Data passed to do_display_target and other target iterators. */
+
+struct display_target {
+ /* Temp file. */
+ char *filename;
+ /* Return status. */
+ int error;
+ /* Number of targets. */
+ int count;
+ /* Size of info in bytes. */
+ size_t alloc;
+ /* Per-target info. */
+ struct {
+ /* Target name. */
+ const char *name;
+ /* Non-zero if target/arch combination supported. */
+ unsigned char arch[bfd_arch_last - bfd_arch_obscure - 1];
+ } *info;
+};
+
+/* List the targets that BFD is configured to support, each followed
+ by its endianness and the architectures it supports. Also build
+ info about target/archs. */
+
+static int
+do_display_target (const bfd_target *targ, void *data)
+{
+ struct display_target *param = (struct display_target *) data;
+ bfd *abfd;
+ size_t amt;
+
+ param->count += 1;
+ amt = param->count * sizeof (*param->info);
+ if (param->alloc < amt)
+ {
+ size_t size = ((param->count < 64 ? 64 : param->count)
+ * sizeof (*param->info) * 2);
+ param->info = xrealloc (param->info, size);
+ memset ((char *) param->info + param->alloc, 0, size - param->alloc);
+ param->alloc = size;
+ }
+ param->info[param->count - 1].name = targ->name;
+
+ printf (_("%s\n (header %s, data %s)\n"), targ->name,
+ endian_string (targ->header_byteorder),
+ endian_string (targ->byteorder));
+
+ abfd = bfd_openw (param->filename, targ->name);
+ if (abfd == NULL)
+ {
+ bfd_nonfatal (param->filename);
+ param->error = 1;
+ }
+ else if (!bfd_set_format (abfd, bfd_object))
+ {
+ if (bfd_get_error () != bfd_error_invalid_operation)
+ {
+ bfd_nonfatal (targ->name);
+ param->error = 1;
+ }
+ }
+ else
+ {
+ enum bfd_architecture a;
+
+ for (a = bfd_arch_obscure + 1; a < bfd_arch_last; a++)
+ if (bfd_set_arch_mach (abfd, a, 0))
+ {
+ printf (" %s\n", bfd_printable_arch_mach (a, 0));
+ param->info[param->count - 1].arch[a - bfd_arch_obscure - 1] = 1;
+ }
+ }
+ if (abfd != NULL)
+ bfd_close_all_done (abfd);
+
+ return param->error;
+}
+
+static void
+display_target_list (struct display_target *arg)
+{
+ arg->filename = make_temp_file (NULL);
+ arg->error = 0;
+ arg->count = 0;
+ arg->alloc = 0;
+ arg->info = NULL;
+
+ bfd_iterate_over_targets (do_display_target, arg);
+
+ unlink (arg->filename);
+ free (arg->filename);
+}
+
+/* Calculate how many targets we can print across the page. */
+
+static int
+do_info_size (int targ, int width, const struct display_target *arg)
+{
+ while (targ < arg->count)
+ {
+ width -= strlen (arg->info[targ].name) + 1;
+ if (width < 0)
+ return targ;
+ ++targ;
+ }
+ return targ;
+}
+
+/* Print header of target names. */
+
+static void
+do_info_header (int targ, int stop_targ, const struct display_target *arg)
+{
+ while (targ != stop_targ)
+ printf ("%s ", arg->info[targ++].name);
+}
+
+/* Print a table row. */
+
+static void
+do_info_row (int targ, int stop_targ, enum bfd_architecture a,
+ const struct display_target *arg)
+{
+ while (targ != stop_targ)
+ {
+ if (arg->info[targ].arch[a - bfd_arch_obscure - 1])
+ fputs (arg->info[targ].name, stdout);
+ else
+ {
+ int l = strlen (arg->info[targ].name);
+ while (l--)
+ putchar ('-');
+ }
+ ++targ;
+ if (targ != stop_targ)
+ putchar (' ');
+ }
+}
+
+/* Print tables of all the target-architecture combinations that
+ BFD has been configured to support. */
+
+static void
+display_target_tables (const struct display_target *arg)
+{
+ const char *columns;
+ int width, start_targ, stop_targ;
+ enum bfd_architecture arch;
+ int longest_arch = 0;
+
+ for (arch = bfd_arch_obscure + 1; arch < bfd_arch_last; arch++)
+ {
+ const char *s = bfd_printable_arch_mach (arch, 0);
+ int len = strlen (s);
+ if (len > longest_arch)
+ longest_arch = len;
+ }
+
+ width = 0;
+ columns = getenv ("COLUMNS");
+ if (columns != NULL)
+ width = atoi (columns);
+ if (width == 0)
+ width = 80;
+
+ for (start_targ = 0; start_targ < arg->count; start_targ = stop_targ)
+ {
+ stop_targ = do_info_size (start_targ, width - longest_arch - 1, arg);
+
+ printf ("\n%*s", longest_arch + 1, " ");
+ do_info_header (start_targ, stop_targ, arg);
+ putchar ('\n');
+
+ for (arch = bfd_arch_obscure + 1; arch < bfd_arch_last; arch++)
+ {
+ if (strcmp (bfd_printable_arch_mach (arch, 0), "UNKNOWN!") != 0)
+ {
+ printf ("%*s ", longest_arch,
+ bfd_printable_arch_mach (arch, 0));
+
+ do_info_row (start_targ, stop_targ, arch, arg);
+ putchar ('\n');
+ }
+ }
+ }
+}
+
+int
+display_info (void)
+{
+ struct display_target arg;
+
+ printf (_("BFD header file version %s\n"), BFD_VERSION_STRING);
+
+ display_target_list (&arg);
+ if (!arg.error)
+ display_target_tables (&arg);
+
+ return arg.error;
}
\f
/* Display the archive header for an element as if it were an ls -l listing:
Mode User\tGroup\tSize\tDate Name */
void
-print_arelt_descr (file, abfd, verbose)
- FILE *file;
- bfd *abfd;
- boolean verbose;
+print_arelt_descr (FILE *file, bfd *abfd, bfd_boolean verbose, bfd_boolean offsets)
{
struct stat buf;
char timebuf[40];
time_t when = buf.st_mtime;
const char *ctime_result = (const char *) ctime (&when);
+ bfd_size_type size;
- /* POSIX format: skip weekday and seconds from ctime output. */
- sprintf (timebuf, "%.12s %.4s", ctime_result + 4, ctime_result + 20);
+ /* PR binutils/17605: Check for corrupt time values. */
+ if (ctime_result == NULL)
+ sprintf (timebuf, _("<time data corrupt>"));
+ else
+ /* POSIX format: skip weekday and seconds from ctime output. */
+ sprintf (timebuf, "%.12s %.4s", ctime_result + 4, ctime_result + 20);
mode_string (buf.st_mode, modebuf);
modebuf[10] = '\0';
+ size = buf.st_size;
/* POSIX 1003.2/D11 says to skip first character (entry type). */
- fprintf (file, "%s %ld/%ld %6ld %s ", modebuf + 1,
+ fprintf (file, "%s %ld/%ld %6" BFD_VMA_FMT "u %s ", modebuf + 1,
(long) buf.st_uid, (long) buf.st_gid,
- (long) buf.st_size, timebuf);
+ size, timebuf);
}
}
- fprintf (file, "%s\n", bfd_get_filename (abfd));
+ fprintf (file, "%s", bfd_get_filename (abfd));
+
+ if (offsets)
+ {
+ if (bfd_is_thin_archive (abfd) && abfd->proxy_origin)
+ fprintf (file, " 0x%lx", (unsigned long) abfd->proxy_origin);
+ else if (!bfd_is_thin_archive (abfd) && abfd->origin)
+ fprintf (file, " 0x%lx", (unsigned long) abfd->origin);
+ }
+
+ fprintf (file, "\n");
}
-/* Return the name of a temporary file in the same directory as FILENAME. */
+/* Return a path for a new temporary file in the same directory
+ as file PATH. */
-char *
-make_tempname (filename)
- char *filename;
+static char *
+template_in_dir (const char *path)
{
- static char template[] = "stXXXXXX";
+#define template "stXXXXXX"
+ const char *slash = strrchr (path, '/');
char *tmpname;
- char *slash = strrchr (filename, '/');
+ size_t len;
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
{
/* We could have foo/bar\\baz, or foo\\bar, or d:bar. */
- char *bslash = strrchr (filename, '\\');
+ char *bslash = strrchr (path, '\\');
+
if (slash == NULL || (bslash != NULL && bslash > slash))
slash = bslash;
- if (slash == NULL && filename[0] != '\0' && filename[1] == ':')
- slash = filename + 1;
+ if (slash == NULL && path[0] != '\0' && path[1] == ':')
+ slash = path + 1;
}
#endif
if (slash != (char *) NULL)
{
- char c;
+ len = slash - path;
+ tmpname = (char *) xmalloc (len + sizeof (template) + 2);
+ memcpy (tmpname, path, len);
- c = *slash;
- *slash = 0;
- tmpname = xmalloc (strlen (filename) + sizeof (template) + 2);
- strcpy (tmpname, filename);
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
/* If tmpname is "X:", appending a slash will make it a root
directory on drive X, which is NOT the same as the current
directory on drive X. */
- if (tmpname[1] == ':' && tmpname[2] == '\0')
- strcat (tmpname, ".");
+ if (len == 2 && tmpname[1] == ':')
+ tmpname[len++] = '.';
#endif
- strcat (tmpname, "/");
- strcat (tmpname, template);
- mktemp (tmpname);
- *slash = c;
+ tmpname[len++] = '/';
}
else
{
- tmpname = xmalloc (sizeof (template));
- strcpy (tmpname, template);
- mktemp (tmpname);
+ tmpname = (char *) xmalloc (sizeof (template));
+ len = 0;
}
+
+ memcpy (tmpname + len, template, sizeof (template));
+ return tmpname;
+#undef template
+}
+
+/* Return the name of a created temporary file in the same directory
+ as FILENAME. */
+
+char *
+make_tempname (const char *filename)
+{
+ char *tmpname = template_in_dir (filename);
+ int fd;
+
+#ifdef HAVE_MKSTEMP
+ fd = mkstemp (tmpname);
+#else
+ tmpname = mktemp (tmpname);
+ if (tmpname == NULL)
+ return NULL;
+ fd = open (tmpname, O_RDWR | O_CREAT | O_EXCL, 0600);
+#endif
+ if (fd == -1)
+ {
+ free (tmpname);
+ return NULL;
+ }
+ close (fd);
+ return tmpname;
+}
+
+/* Return the name of a created temporary directory inside the
+ directory containing FILENAME. */
+
+char *
+make_tempdir (const char *filename)
+{
+ char *tmpname = template_in_dir (filename);
+
+#ifdef HAVE_MKDTEMP
+ return mkdtemp (tmpname);
+#else
+ tmpname = mktemp (tmpname);
+ if (tmpname == NULL)
+ return NULL;
+#if defined (_WIN32) && !defined (__CYGWIN32__)
+ if (mkdir (tmpname) != 0)
+ return NULL;
+#else
+ if (mkdir (tmpname, 0700) != 0)
+ return NULL;
+#endif
return tmpname;
+#endif
}
/* Parse a string into a VMA, with a fatal error if it can't be
parsed. */
bfd_vma
-parse_vma (s, arg)
- const char *s;
- const char *arg;
+parse_vma (const char *s, const char *arg)
{
bfd_vma ret;
const char *end;
return ret;
}
+
+/* Returns the size of the named file. If the file does not
+ exist, or if it is not a real file, then a suitable non-fatal
+ error message is printed and (off_t) -1 is returned. */
+
+off_t
+get_file_size (const char * file_name)
+{
+ struct stat statbuf;
+
+ if (file_name == NULL)
+ return (off_t) -1;
+
+ if (stat (file_name, &statbuf) < 0)
+ {
+ if (errno == ENOENT)
+ non_fatal (_("'%s': No such file"), file_name);
+ else
+ non_fatal (_("Warning: could not locate '%s'. reason: %s"),
+ file_name, strerror (errno));
+ }
+ else if (S_ISDIR (statbuf.st_mode))
+ non_fatal (_("Warning: '%s' is a directory"), file_name);
+ else if (! S_ISREG (statbuf.st_mode))
+ non_fatal (_("Warning: '%s' is not an ordinary file"), file_name);
+ else if (statbuf.st_size < 0)
+ non_fatal (_("Warning: '%s' has negative size, probably it is too large"),
+ file_name);
+ else
+ return statbuf.st_size;
+
+ return (off_t) -1;
+}
+
+/* Return the filename in a static buffer. */
+
+const char *
+bfd_get_archive_filename (const bfd *abfd)
+{
+ static size_t curr = 0;
+ static char *buf;
+ size_t needed;
+
+ assert (abfd != NULL);
+
+ if (abfd->my_archive == NULL
+ || bfd_is_thin_archive (abfd->my_archive))
+ return bfd_get_filename (abfd);
+
+ needed = (strlen (bfd_get_filename (abfd->my_archive))
+ + strlen (bfd_get_filename (abfd)) + 3);
+ if (needed > curr)
+ {
+ if (curr)
+ free (buf);
+ curr = needed + (needed >> 1);
+ buf = (char *) xmalloc (curr);
+ }
+ sprintf (buf, "%s(%s)", bfd_get_filename (abfd->my_archive),
+ bfd_get_filename (abfd));
+ return buf;
+}
+
+/* Returns TRUE iff PATHNAME, a filename of an archive member,
+ is valid for writing. For security reasons absolute paths
+ and paths containing /../ are not allowed. See PR 17533. */
+
+bfd_boolean
+is_valid_archive_path (char const * pathname)
+{
+ const char * n = pathname;
+
+ if (IS_ABSOLUTE_PATH (n))
+ return FALSE;
+
+ while (*n)
+ {
+ if (*n == '.' && *++n == '.' && ( ! *++n || IS_DIR_SEPARATOR (*n)))
+ return FALSE;
+
+ while (*n && ! IS_DIR_SEPARATOR (*n))
+ n++;
+ while (IS_DIR_SEPARATOR (*n))
+ n++;
+ }
+
+ return TRUE;
+}
projects / deliverable / binutils-gdb.git / blobdiff