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diff --git a/gcc-4.2.1-5666.3/libiberty/argv.c b/gcc-4.2.1-5666.3/libiberty/argv.c
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+/* Create and destroy argument vectors (argv's)
+ Copyright (C) 1992, 2001 Free Software Foundation, Inc.
+ Written by Fred Fish @ Cygnus Support
+
+This file is part of the libiberty library.
+Libiberty is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+Libiberty 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with libiberty; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
+Boston, MA 02110-1301, USA. */
+
+
+/* Create and destroy argument vectors. An argument vector is simply an
+ array of string pointers, terminated by a NULL pointer. */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include "ansidecl.h"
+#include "libiberty.h"
+#include "safe-ctype.h"
+
+/* Routines imported from standard C runtime libraries. */
+
+#include <stddef.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+#ifndef EOS
+#define EOS '\0'
+#endif
+
+#define INITIAL_MAXARGC 8 /* Number of args + NULL in initial argv */
+
+
+/*
+
+@deftypefn Extension char** dupargv (char **@var{vector})
+
+Duplicate an argument vector. Simply scans through @var{vector},
+duplicating each argument until the terminating @code{NULL} is found.
+Returns a pointer to the argument vector if successful. Returns
+@code{NULL} if there is insufficient memory to complete building the
+argument vector.
+
+@end deftypefn
+
+*/
+
+char **
+dupargv (char **argv)
+{
+ int argc;
+ char **copy;
+
+ if (argv == NULL)
+ return NULL;
+
+ /* the vector */
+ for (argc = 0; argv[argc] != NULL; argc++);
+ copy = (char **) malloc ((argc + 1) * sizeof (char *));
+ if (copy == NULL)
+ return NULL;
+
+ /* the strings */
+ for (argc = 0; argv[argc] != NULL; argc++)
+ {
+ int len = strlen (argv[argc]);
+ copy[argc] = (char *) malloc (len + 1);
+ if (copy[argc] == NULL)
+ {
+ freeargv (copy);
+ return NULL;
+ }
+ strcpy (copy[argc], argv[argc]);
+ }
+ copy[argc] = NULL;
+ return copy;
+}
+
+/*
+
+@deftypefn Extension void freeargv (char **@var{vector})
+
+Free an argument vector that was built using @code{buildargv}. Simply
+scans through @var{vector}, freeing the memory for each argument until
+the terminating @code{NULL} is found, and then frees @var{vector}
+itself.
+
+@end deftypefn
+
+*/
+
+void freeargv (char **vector)
+{
+ register char **scan;
+
+ if (vector != NULL)
+ {
+ for (scan = vector; *scan != NULL; scan++)
+ {
+ free (*scan);
+ }
+ free (vector);
+ }
+}
+
+/*
+
+@deftypefn Extension char** buildargv (char *@var{sp})
+
+Given a pointer to a string, parse the string extracting fields
+separated by whitespace and optionally enclosed within either single
+or double quotes (which are stripped off), and build a vector of
+pointers to copies of the string for each field. The input string
+remains unchanged. The last element of the vector is followed by a
+@code{NULL} element.
+
+All of the memory for the pointer array and copies of the string
+is obtained from @code{malloc}. All of the memory can be returned to the
+system with the single function call @code{freeargv}, which takes the
+returned result of @code{buildargv}, as it's argument.
+
+Returns a pointer to the argument vector if successful. Returns
+@code{NULL} if @var{sp} is @code{NULL} or if there is insufficient
+memory to complete building the argument vector.
+
+If the input is a null string (as opposed to a @code{NULL} pointer),
+then buildarg returns an argument vector that has one arg, a null
+string.
+
+@end deftypefn
+
+The memory for the argv array is dynamically expanded as necessary.
+
+In order to provide a working buffer for extracting arguments into,
+with appropriate stripping of quotes and translation of backslash
+sequences, we allocate a working buffer at least as long as the input
+string. This ensures that we always have enough space in which to
+work, since the extracted arg is never larger than the input string.
+
+The argument vector is always kept terminated with a @code{NULL} arg
+pointer, so it can be passed to @code{freeargv} at any time, or
+returned, as appropriate.
+
+*/
+
+char **buildargv (const char *input)
+{
+ char *arg;
+ char *copybuf;
+ int squote = 0;
+ int dquote = 0;
+ int bsquote = 0;
+ int argc = 0;
+ int maxargc = 0;
+ char **argv = NULL;
+ char **nargv;
+
+ if (input != NULL)
+ {
+ copybuf = (char *) alloca (strlen (input) + 1);
+ /* Is a do{}while to always execute the loop once. Always return an
+ argv, even for null strings. See NOTES above, test case below. */
+ do
+ {
+ /* Pick off argv[argc] */
+ while (ISBLANK (*input))
+ {
+ input++;
+ }
+ if ((maxargc == 0) || (argc >= (maxargc - 1)))
+ {
+ /* argv needs initialization, or expansion */
+ if (argv == NULL)
+ {
+ maxargc = INITIAL_MAXARGC;
+ nargv = (char **) malloc (maxargc * sizeof (char *));
+ }
+ else
+ {
+ maxargc *= 2;
+ nargv = (char **) realloc (argv, maxargc * sizeof (char *));
+ }
+ if (nargv == NULL)
+ {
+ if (argv != NULL)
+ {
+ freeargv (argv);
+ argv = NULL;
+ }
+ break;
+ }
+ argv = nargv;
+ argv[argc] = NULL;
+ }
+ /* Begin scanning arg */
+ arg = copybuf;
+ while (*input != EOS)
+ {
+ if (ISSPACE (*input) && !squote && !dquote && !bsquote)
+ {
+ break;
+ }
+ else
+ {
+ if (bsquote)
+ {
+ bsquote = 0;
+ *arg++ = *input;
+ }
+ else if (*input == '\\')
+ {
+ bsquote = 1;
+ }
+ else if (squote)
+ {
+ if (*input == '\'')
+ {
+ squote = 0;
+ }
+ else
+ {
+ *arg++ = *input;
+ }
+ }
+ else if (dquote)
+ {
+ if (*input == '"')
+ {
+ dquote = 0;
+ }
+ else
+ {
+ *arg++ = *input;
+ }
+ }
+ else
+ {
+ if (*input == '\'')
+ {
+ squote = 1;
+ }
+ else if (*input == '"')
+ {
+ dquote = 1;
+ }
+ else
+ {
+ *arg++ = *input;
+ }
+ }
+ input++;
+ }
+ }
+ *arg = EOS;
+ argv[argc] = strdup (copybuf);
+ if (argv[argc] == NULL)
+ {
+ freeargv (argv);
+ argv = NULL;
+ break;
+ }
+ argc++;
+ argv[argc] = NULL;
+
+ while (ISSPACE (*input))
+ {
+ input++;
+ }
+ }
+ while (*input != EOS);
+ }
+ return (argv);
+}
+
+/*
+
+@deftypefn Extension void expandargv (int *@var{argcp}, char ***@var{argvp})
+
+The @var{argcp} and @code{argvp} arguments are pointers to the usual
+@code{argc} and @code{argv} arguments to @code{main}. This function
+looks for arguments that begin with the character @samp{@@}. Any such
+arguments are interpreted as ``response files''. The contents of the
+response file are interpreted as additional command line options. In
+particular, the file is separated into whitespace-separated strings;
+each such string is taken as a command-line option. The new options
+are inserted in place of the option naming the response file, and
+@code{*argcp} and @code{*argvp} will be updated. If the value of
+@code{*argvp} is modified by this function, then the new value has
+been dynamically allocated and can be deallocated by the caller with
+@code{freeargv}. However, most callers will simply call
+@code{expandargv} near the beginning of @code{main} and allow the
+operating system to free the memory when the program exits.
+
+@end deftypefn
+
+*/
+
+void
+expandargv (argcp, argvp)
+ int *argcp;
+ char ***argvp;
+{
+ /* The argument we are currently processing. */
+ int i = 0;
+ /* Non-zero if ***argvp has been dynamically allocated. */
+ int argv_dynamic = 0;
+ /* Loop over the arguments, handling response files. We always skip
+ ARGVP[0], as that is the name of the program being run. */
+ while (++i < *argcp)
+ {
+ /* The name of the response file. */
+ const char *filename;
+ /* The response file. */
+ FILE *f;
+ /* An upper bound on the number of characters in the response
+ file. */
+ long pos;
+ /* The number of characters in the response file, when actually
+ read. */
+ size_t len;
+ /* A dynamically allocated buffer used to hold options read from a
+ response file. */
+ char *buffer;
+ /* Dynamically allocated storage for the options read from the
+ response file. */
+ char **file_argv;
+ /* The number of options read from the response file, if any. */
+ size_t file_argc;
+ /* We are only interested in options of the form "@file". */
+ filename = (*argvp)[i];
+ if (filename[0] != '@')
+ continue;
+ /* Read the contents of the file. */
+ f = fopen (++filename, "r");
+ if (!f)
+ continue;
+ if (fseek (f, 0L, SEEK_END) == -1)
+ goto error;
+ pos = ftell (f);
+ if (pos == -1)
+ goto error;
+ if (fseek (f, 0L, SEEK_SET) == -1)
+ goto error;
+ buffer = (char *) xmalloc (pos * sizeof (char) + 1);
+ len = fread (buffer, sizeof (char), pos, f);
+ if (len != (size_t) pos
+ /* On Windows, fread may return a value smaller than POS,
+ due to CR/LF->CR translation when reading text files.
+ That does not in-and-of itself indicate failure. */
+ && ferror (f))
+ goto error;
+ /* Add a NUL terminator. */
+ buffer[len] = '\0';
+ /* Parse the string. */
+ file_argv = buildargv (buffer);
+ /* If *ARGVP is not already dynamically allocated, copy it. */
+ if (!argv_dynamic)
+ {
+ *argvp = dupargv (*argvp);
+ if (!*argvp)
+ {
+ fputs ("\nout of memory\n", stderr);
+ xexit (1);
+ }
+ }
+ /* Count the number of arguments. */
+ file_argc = 0;
+ while (file_argv[file_argc] && *file_argv[file_argc])
+ ++file_argc;
+ /* Now, insert FILE_ARGV into ARGV. The "+1" below handles the
+ NULL terminator at the end of ARGV. */
+ *argvp = ((char **)
+ xrealloc (*argvp,
+ (*argcp + file_argc + 1) * sizeof (char *)));
+ memmove (*argvp + i + file_argc, *argvp + i + 1,
+ (*argcp - i) * sizeof (char *));
+ memcpy (*argvp + i, file_argv, file_argc * sizeof (char *));
+ /* The original option has been replaced by all the new
+ options. */
+ *argcp += file_argc - 1;
+ /* Free up memory allocated to process the response file. We do
+ not use freeargv because the individual options in FILE_ARGV
+ are now in the main ARGV. */
+ free (file_argv);
+ free (buffer);
+ /* Rescan all of the arguments just read to support response
+ files that include other response files. */
+ --i;
+ error:
+ /* We're all done with the file now. */
+ fclose (f);
+ }
+}
+
+#ifdef MAIN
+
+/* Simple little test driver. */
+
+static const char *const tests[] =
+{
+ "a simple command line",
+ "arg 'foo' is single quoted",
+ "arg \"bar\" is double quoted",
+ "arg \"foo bar\" has embedded whitespace",
+ "arg 'Jack said \\'hi\\'' has single quotes",
+ "arg 'Jack said \\\"hi\\\"' has double quotes",
+ "a b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4 5 6 7 8 9",
+
+ /* This should be expanded into only one argument. */
+ "trailing-whitespace ",
+
+ "",
+ NULL
+};
+
+int
+main (void)
+{
+ char **argv;
+ const char *const *test;
+ char **targs;
+
+ for (test = tests; *test != NULL; test++)
+ {
+ printf ("buildargv(\"%s\")\n", *test);
+ if ((argv = buildargv (*test)) == NULL)
+ {
+ printf ("failed!\n\n");
+ }
+ else
+ {
+ for (targs = argv; *targs != NULL; targs++)
+ {
+ printf ("\t\"%s\"\n", *targs);
+ }
+ printf ("\n");
+ }
+ freeargv (argv);
+ }
+
+ return 0;
+}
+
+#endif /* MAIN */
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