[Box Backup-commit] COMMIT r2388 - box/trunk/lib/win32
boxbackup-dev at boxbackup.org
boxbackup-dev at boxbackup.org
Sun Nov 30 21:53:15 GMT 2008
Author: chris
Date: 2008-11-30 21:53:14 +0000 (Sun, 30 Nov 2008)
New Revision: 2388
Added:
box/trunk/lib/win32/getopt_long.cpp
Removed:
box/trunk/lib/win32/getopt_long.cxx
Log:
Cygwin/MinGW getopt no longer seems to have optreset, so now would be
the time to start using that implementation we stole from BSD.
Copied: box/trunk/lib/win32/getopt_long.cpp (from rev 2387, box/trunk/lib/win32/getopt_long.cxx)
===================================================================
--- box/trunk/lib/win32/getopt_long.cpp (rev 0)
+++ box/trunk/lib/win32/getopt_long.cpp 2008-11-30 21:53:14 UTC (rev 2388)
@@ -0,0 +1,550 @@
+/* $OpenBSD: getopt_long.c,v 1.20 2005/10/25 15:49:37 jmc Exp $ */
+/* $NetBSD: getopt_long.c,v 1.15 2002/01/31 22:43:40 tv Exp $ */
+// Adapted for Box Backup by Chris Wilson <chris+boxbackup at qwirx.com>
+
+/*
+ * Copyright (c) 2002 Todd C. Miller <Todd.Miller at courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F39502-99-1-0512.
+ */
+/*-
+ * Copyright (c) 2000 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Dieter Baron and Thomas Klausner.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the NetBSD
+ * Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// #include "Box.h"
+
+#include <errno.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "getopt.h"
+
+#if defined _MSC_VER || defined __MINGW32__
+#define REPLACE_GETOPT /* use this getopt as the system getopt(3) */
+#endif
+
+#ifdef REPLACE_GETOPT
+int opterr = 1; /* if error message should be printed */
+int optind = 1; /* index into parent argv vector */
+int optopt = '?'; /* character checked for validity */
+int optreset; /* reset getopt */
+char *optarg; /* argument associated with option */
+#endif
+
+#define PRINT_ERROR ((opterr) && (*options != ':'))
+
+#define FLAG_PERMUTE 0x01 /* permute non-options to the end of argv */
+#define FLAG_ALLARGS 0x02 /* treat non-options as args to option "-1" */
+#define FLAG_LONGONLY 0x04 /* operate as getopt_long_only */
+
+/* return values */
+#define BADCH (int)'?'
+#define BADARG ((*options == ':') ? (int)':' : (int)'?')
+#define INORDER (int)1
+
+#define EMSG ""
+
+static void warnx(const char* fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+ fprintf(stderr, "\n");
+}
+
+static int getopt_internal(int, char * const *, const char *,
+ const struct option *, int *, int);
+static int parse_long_options(char * const *, const char *,
+ const struct option *, int *, int);
+static int gcd(int, int);
+static void permute_args(int, int, int, char * const *);
+
+static char *place = EMSG; /* option letter processing */
+
+/* XXX: set optreset to 1 rather than these two */
+static int nonopt_start = -1; /* first non option argument (for permute) */
+static int nonopt_end = -1; /* first option after non options (for permute) */
+
+/* Error messages */
+static const char recargchar[] = "option requires an argument -- %c";
+static const char recargstring[] = "option requires an argument -- %s";
+static const char ambig[] = "ambiguous option -- %.*s";
+static const char noarg[] = "option doesn't take an argument -- %.*s";
+static const char illoptchar[] = "unknown option -- %c";
+static const char illoptstring[] = "unknown option -- %s";
+
+/*
+ * Compute the greatest common divisor of a and b.
+ */
+static int
+gcd(int a, int b)
+{
+ int c;
+
+ c = a % b;
+ while (c != 0) {
+ a = b;
+ b = c;
+ c = a % b;
+ }
+
+ return (b);
+}
+
+/*
+ * Exchange the block from nonopt_start to nonopt_end with the block
+ * from nonopt_end to opt_end (keeping the same order of arguments
+ * in each block).
+ */
+static void
+permute_args(int panonopt_start, int panonopt_end, int opt_end,
+ char * const *nargv)
+{
+ int cstart, cyclelen, i, j, ncycle, nnonopts, nopts, pos;
+ char *swap;
+
+ /*
+ * compute lengths of blocks and number and size of cycles
+ */
+ nnonopts = panonopt_end - panonopt_start;
+ nopts = opt_end - panonopt_end;
+ ncycle = gcd(nnonopts, nopts);
+ cyclelen = (opt_end - panonopt_start) / ncycle;
+
+ for (i = 0; i < ncycle; i++) {
+ cstart = panonopt_end+i;
+ pos = cstart;
+ for (j = 0; j < cyclelen; j++) {
+ if (pos >= panonopt_end)
+ pos -= nnonopts;
+ else
+ pos += nopts;
+ swap = nargv[pos];
+ /* LINTED const cast */
+ ((char **) nargv)[pos] = nargv[cstart];
+ /* LINTED const cast */
+ ((char **)nargv)[cstart] = swap;
+ }
+ }
+}
+
+/*
+ * parse_long_options --
+ * Parse long options in argc/argv argument vector.
+ * Returns -1 if short_too is set and the option does not match long_options.
+ */
+static int
+parse_long_options(char * const *nargv, const char *options,
+ const struct option *long_options, int *idx, int short_too)
+{
+ char *current_argv, *has_equal;
+ size_t current_argv_len;
+ int i, match;
+
+ current_argv = place;
+ match = -1;
+
+ optind++;
+
+ if ((has_equal = strchr(current_argv, '=')) != NULL) {
+ /* argument found (--option=arg) */
+ current_argv_len = has_equal - current_argv;
+ has_equal++;
+ } else
+ current_argv_len = strlen(current_argv);
+
+ for (i = 0; long_options[i].name; i++) {
+ /* find matching long option */
+ if (strncmp(current_argv, long_options[i].name,
+ current_argv_len))
+ continue;
+
+ if (strlen(long_options[i].name) == current_argv_len) {
+ /* exact match */
+ match = i;
+ break;
+ }
+ /*
+ * If this is a known short option, don't allow
+ * a partial match of a single character.
+ */
+ if (short_too && current_argv_len == 1)
+ continue;
+
+ if (match == -1) /* partial match */
+ match = i;
+ else {
+ /* ambiguous abbreviation */
+ if (PRINT_ERROR)
+ warnx(ambig, (int)current_argv_len,
+ current_argv);
+ optopt = 0;
+ return (BADCH);
+ }
+ }
+ if (match != -1) { /* option found */
+ if (long_options[match].has_arg == no_argument
+ && has_equal) {
+ if (PRINT_ERROR)
+ warnx(noarg, (int)current_argv_len,
+ current_argv);
+ /*
+ * XXX: GNU sets optopt to val regardless of flag
+ */
+ if (long_options[match].flag == NULL)
+ optopt = long_options[match].val;
+ else
+ optopt = 0;
+ return (BADARG);
+ }
+ if (long_options[match].has_arg == required_argument ||
+ long_options[match].has_arg == optional_argument) {
+ if (has_equal)
+ optarg = has_equal;
+ else if (long_options[match].has_arg ==
+ required_argument) {
+ /*
+ * optional argument doesn't use next nargv
+ */
+ optarg = nargv[optind++];
+ }
+ }
+ if ((long_options[match].has_arg == required_argument)
+ && (optarg == NULL)) {
+ /*
+ * Missing argument; leading ':' indicates no error
+ * should be generated.
+ */
+ if (PRINT_ERROR)
+ warnx(recargstring,
+ current_argv);
+ /*
+ * XXX: GNU sets optopt to val regardless of flag
+ */
+ if (long_options[match].flag == NULL)
+ optopt = long_options[match].val;
+ else
+ optopt = 0;
+ --optind;
+ return (BADARG);
+ }
+ } else { /* unknown option */
+ if (short_too) {
+ --optind;
+ return (-1);
+ }
+ if (PRINT_ERROR)
+ warnx(illoptstring, current_argv);
+ optopt = 0;
+ return (BADCH);
+ }
+ if (idx)
+ *idx = match;
+ if (long_options[match].flag) {
+ *long_options[match].flag = long_options[match].val;
+ return (0);
+ } else
+ return (long_options[match].val);
+}
+
+/*
+ * getopt_internal --
+ * Parse argc/argv argument vector. Called by user level routines.
+ */
+static int
+getopt_internal(int nargc, char * const *nargv, const char *options,
+ const struct option *long_options, int *idx, int flags)
+{
+ const char * oli; /* option letter list index */
+ int optchar, short_too;
+ static int posixly_correct = -1;
+
+ if (options == NULL)
+ return (-1);
+
+ /*
+ * Disable GNU extensions if POSIXLY_CORRECT is set or options
+ * string begins with a '+'.
+ */
+ if (posixly_correct == -1)
+ posixly_correct = (getenv("POSIXLY_CORRECT") != NULL);
+ if (posixly_correct || *options == '+')
+ flags &= ~FLAG_PERMUTE;
+ else if (*options == '-')
+ flags |= FLAG_ALLARGS;
+ if (*options == '+' || *options == '-')
+ options++;
+
+ /*
+ * XXX Some GNU programs (like cvs) set optind to 0 instead of
+ * XXX using optreset. Work around this braindamage.
+ */
+ if (optind == 0)
+ optind = optreset = 1;
+
+ optarg = NULL;
+ if (optreset)
+ nonopt_start = nonopt_end = -1;
+start:
+ if (optreset || !*place) { /* update scanning pointer */
+ optreset = 0;
+ if (optind >= nargc) { /* end of argument vector */
+ place = EMSG;
+ if (nonopt_end != -1) {
+ /* do permutation, if we have to */
+ permute_args(nonopt_start, nonopt_end,
+ optind, nargv);
+ optind -= nonopt_end - nonopt_start;
+ }
+ else if (nonopt_start != -1) {
+ /*
+ * If we skipped non-options, set optind
+ * to the first of them.
+ */
+ optind = nonopt_start;
+ }
+ nonopt_start = nonopt_end = -1;
+ return (-1);
+ }
+ if (*(place = nargv[optind]) != '-' ||
+ (place[1] == '\0' && strchr(options, '-') == NULL)) {
+ place = EMSG; /* found non-option */
+ if (flags & FLAG_ALLARGS) {
+ /*
+ * GNU extension:
+ * return non-option as argument to option 1
+ */
+ optarg = nargv[optind++];
+ return (INORDER);
+ }
+ if (!(flags & FLAG_PERMUTE)) {
+ /*
+ * If no permutation wanted, stop parsing
+ * at first non-option.
+ */
+ return (-1);
+ }
+ /* do permutation */
+ if (nonopt_start == -1)
+ nonopt_start = optind;
+ else if (nonopt_end != -1) {
+ permute_args(nonopt_start, nonopt_end,
+ optind, nargv);
+ nonopt_start = optind -
+ (nonopt_end - nonopt_start);
+ nonopt_end = -1;
+ }
+ optind++;
+ /* process next argument */
+ goto start;
+ }
+ if (nonopt_start != -1 && nonopt_end == -1)
+ nonopt_end = optind;
+
+ /*
+ * If we have "-" do nothing, if "--" we are done.
+ */
+ if (place[1] != '\0' && *++place == '-' && place[1] == '\0') {
+ optind++;
+ place = EMSG;
+ /*
+ * We found an option (--), so if we skipped
+ * non-options, we have to permute.
+ */
+ if (nonopt_end != -1) {
+ permute_args(nonopt_start, nonopt_end,
+ optind, nargv);
+ optind -= nonopt_end - nonopt_start;
+ }
+ nonopt_start = nonopt_end = -1;
+ return (-1);
+ }
+ }
+
+ /*
+ * Check long options if:
+ * 1) we were passed some
+ * 2) the arg is not just "-"
+ * 3) either the arg starts with -- we are getopt_long_only()
+ */
+ if (long_options != NULL && place != nargv[optind] &&
+ (*place == '-' || (flags & FLAG_LONGONLY))) {
+ short_too = 0;
+ if (*place == '-')
+ place++; /* --foo long option */
+ else if (*place != ':' && strchr(options, *place) != NULL)
+ short_too = 1; /* could be short option too */
+
+ optchar = parse_long_options(nargv, options, long_options,
+ idx, short_too);
+ if (optchar != -1) {
+ place = EMSG;
+ return (optchar);
+ }
+ }
+
+ if ((optchar = (int)*place++) == (int)':' ||
+ optchar == (int)'-' && *place != '\0' ||
+ (oli = strchr(options, optchar)) == NULL) {
+ /*
+ * If the user specified "-" and '-' isn't listed in
+ * options, return -1 (non-option) as per POSIX.
+ * Otherwise, it is an unknown option character (or ':').
+ */
+ if (optchar == (int)'-' && *place == '\0')
+ return (-1);
+ if (!*place)
+ ++optind;
+ if (PRINT_ERROR)
+ warnx(illoptchar, optchar);
+ optopt = optchar;
+ return (BADCH);
+ }
+ if (long_options != NULL && optchar == 'W' && oli[1] == ';') {
+ /* -W long-option */
+ if (*place) /* no space */
+ /* NOTHING */;
+ else if (++optind >= nargc) { /* no arg */
+ place = EMSG;
+ if (PRINT_ERROR)
+ warnx(recargchar, optchar);
+ optopt = optchar;
+ return (BADARG);
+ } else /* white space */
+ place = nargv[optind];
+ optchar = parse_long_options(nargv, options, long_options,
+ idx, 0);
+ place = EMSG;
+ return (optchar);
+ }
+ if (*++oli != ':') { /* doesn't take argument */
+ if (!*place)
+ ++optind;
+ } else { /* takes (optional) argument */
+ optarg = NULL;
+ if (*place) /* no white space */
+ optarg = place;
+ /* XXX: disable test for :: if PC? (GNU doesn't) */
+ else if (oli[1] != ':') { /* arg not optional */
+ if (++optind >= nargc) { /* no arg */
+ place = EMSG;
+ if (PRINT_ERROR)
+ warnx(recargchar, optchar);
+ optopt = optchar;
+ return (BADARG);
+ } else
+ optarg = nargv[optind];
+ } else if (!(flags & FLAG_PERMUTE)) {
+ /*
+ * If permutation is disabled, we can accept an
+ * optional arg separated by whitespace so long
+ * as it does not start with a dash (-).
+ */
+ if (optind + 1 < nargc && *nargv[optind + 1] != '-')
+ optarg = nargv[++optind];
+ }
+ place = EMSG;
+ ++optind;
+ }
+ /* dump back option letter */
+ return (optchar);
+}
+
+#ifdef REPLACE_GETOPT
+/*
+ * getopt --
+ * Parse argc/argv argument vector.
+ *
+ * [eventually this will replace the BSD getopt]
+ */
+int
+getopt(int nargc, char * const *nargv, const char *options)
+{
+
+ /*
+ * We don't pass FLAG_PERMUTE to getopt_internal() since
+ * the BSD getopt(3) (unlike GNU) has never done this.
+ *
+ * Furthermore, since many privileged programs call getopt()
+ * before dropping privileges it makes sense to keep things
+ * as simple (and bug-free) as possible.
+ */
+ return (getopt_internal(nargc, nargv, options, NULL, NULL, 0));
+}
+#endif /* REPLACE_GETOPT */
+
+/*
+ * getopt_long --
+ * Parse argc/argv argument vector.
+ */
+int
+getopt_long(int nargc, char * const *nargv, const char *options,
+ const struct option *long_options, int *idx)
+{
+
+ return (getopt_internal(nargc, nargv, options, long_options, idx,
+ FLAG_PERMUTE));
+}
+
+/*
+ * getopt_long_only --
+ * Parse argc/argv argument vector.
+ */
+int
+getopt_long_only(int nargc, char * const *nargv, const char *options,
+ const struct option *long_options, int *idx)
+{
+
+ return (getopt_internal(nargc, nargv, options, long_options, idx,
+ FLAG_PERMUTE|FLAG_LONGONLY));
+}
+
Property changes on: box/trunk/lib/win32/getopt_long.cpp
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:mergeinfo
+
Deleted: box/trunk/lib/win32/getopt_long.cxx
===================================================================
--- box/trunk/lib/win32/getopt_long.cxx 2008-11-24 23:53:26 UTC (rev 2387)
+++ box/trunk/lib/win32/getopt_long.cxx 2008-11-30 21:53:14 UTC (rev 2388)
@@ -1,550 +0,0 @@
-/* $OpenBSD: getopt_long.c,v 1.20 2005/10/25 15:49:37 jmc Exp $ */
-/* $NetBSD: getopt_long.c,v 1.15 2002/01/31 22:43:40 tv Exp $ */
-// Adapted for Box Backup by Chris Wilson <chris+boxbackup at qwirx.com>
-
-/*
- * Copyright (c) 2002 Todd C. Miller <Todd.Miller at courtesan.com>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Sponsored in part by the Defense Advanced Research Projects
- * Agency (DARPA) and Air Force Research Laboratory, Air Force
- * Materiel Command, USAF, under agreement number F39502-99-1-0512.
- */
-/*-
- * Copyright (c) 2000 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by Dieter Baron and Thomas Klausner.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the NetBSD
- * Foundation, Inc. and its contributors.
- * 4. Neither the name of The NetBSD Foundation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
- * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-// #include "Box.h"
-
-#include <errno.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "getopt.h"
-
-#if defined _MSC_VER || defined __MINGW32__
-#define REPLACE_GETOPT /* use this getopt as the system getopt(3) */
-#endif
-
-#ifdef REPLACE_GETOPT
-int opterr = 1; /* if error message should be printed */
-int optind = 1; /* index into parent argv vector */
-int optopt = '?'; /* character checked for validity */
-int optreset; /* reset getopt */
-char *optarg; /* argument associated with option */
-#endif
-
-#define PRINT_ERROR ((opterr) && (*options != ':'))
-
-#define FLAG_PERMUTE 0x01 /* permute non-options to the end of argv */
-#define FLAG_ALLARGS 0x02 /* treat non-options as args to option "-1" */
-#define FLAG_LONGONLY 0x04 /* operate as getopt_long_only */
-
-/* return values */
-#define BADCH (int)'?'
-#define BADARG ((*options == ':') ? (int)':' : (int)'?')
-#define INORDER (int)1
-
-#define EMSG ""
-
-static void warnx(const char* fmt, ...)
-{
- va_list ap;
- va_start(ap, fmt);
- vfprintf(stderr, fmt, ap);
- va_end(ap);
- fprintf(stderr, "\n");
-}
-
-static int getopt_internal(int, char * const *, const char *,
- const struct option *, int *, int);
-static int parse_long_options(char * const *, const char *,
- const struct option *, int *, int);
-static int gcd(int, int);
-static void permute_args(int, int, int, char * const *);
-
-static char *place = EMSG; /* option letter processing */
-
-/* XXX: set optreset to 1 rather than these two */
-static int nonopt_start = -1; /* first non option argument (for permute) */
-static int nonopt_end = -1; /* first option after non options (for permute) */
-
-/* Error messages */
-static const char recargchar[] = "option requires an argument -- %c";
-static const char recargstring[] = "option requires an argument -- %s";
-static const char ambig[] = "ambiguous option -- %.*s";
-static const char noarg[] = "option doesn't take an argument -- %.*s";
-static const char illoptchar[] = "unknown option -- %c";
-static const char illoptstring[] = "unknown option -- %s";
-
-/*
- * Compute the greatest common divisor of a and b.
- */
-static int
-gcd(int a, int b)
-{
- int c;
-
- c = a % b;
- while (c != 0) {
- a = b;
- b = c;
- c = a % b;
- }
-
- return (b);
-}
-
-/*
- * Exchange the block from nonopt_start to nonopt_end with the block
- * from nonopt_end to opt_end (keeping the same order of arguments
- * in each block).
- */
-static void
-permute_args(int panonopt_start, int panonopt_end, int opt_end,
- char * const *nargv)
-{
- int cstart, cyclelen, i, j, ncycle, nnonopts, nopts, pos;
- char *swap;
-
- /*
- * compute lengths of blocks and number and size of cycles
- */
- nnonopts = panonopt_end - panonopt_start;
- nopts = opt_end - panonopt_end;
- ncycle = gcd(nnonopts, nopts);
- cyclelen = (opt_end - panonopt_start) / ncycle;
-
- for (i = 0; i < ncycle; i++) {
- cstart = panonopt_end+i;
- pos = cstart;
- for (j = 0; j < cyclelen; j++) {
- if (pos >= panonopt_end)
- pos -= nnonopts;
- else
- pos += nopts;
- swap = nargv[pos];
- /* LINTED const cast */
- ((char **) nargv)[pos] = nargv[cstart];
- /* LINTED const cast */
- ((char **)nargv)[cstart] = swap;
- }
- }
-}
-
-/*
- * parse_long_options --
- * Parse long options in argc/argv argument vector.
- * Returns -1 if short_too is set and the option does not match long_options.
- */
-static int
-parse_long_options(char * const *nargv, const char *options,
- const struct option *long_options, int *idx, int short_too)
-{
- char *current_argv, *has_equal;
- size_t current_argv_len;
- int i, match;
-
- current_argv = place;
- match = -1;
-
- optind++;
-
- if ((has_equal = strchr(current_argv, '=')) != NULL) {
- /* argument found (--option=arg) */
- current_argv_len = has_equal - current_argv;
- has_equal++;
- } else
- current_argv_len = strlen(current_argv);
-
- for (i = 0; long_options[i].name; i++) {
- /* find matching long option */
- if (strncmp(current_argv, long_options[i].name,
- current_argv_len))
- continue;
-
- if (strlen(long_options[i].name) == current_argv_len) {
- /* exact match */
- match = i;
- break;
- }
- /*
- * If this is a known short option, don't allow
- * a partial match of a single character.
- */
- if (short_too && current_argv_len == 1)
- continue;
-
- if (match == -1) /* partial match */
- match = i;
- else {
- /* ambiguous abbreviation */
- if (PRINT_ERROR)
- warnx(ambig, (int)current_argv_len,
- current_argv);
- optopt = 0;
- return (BADCH);
- }
- }
- if (match != -1) { /* option found */
- if (long_options[match].has_arg == no_argument
- && has_equal) {
- if (PRINT_ERROR)
- warnx(noarg, (int)current_argv_len,
- current_argv);
- /*
- * XXX: GNU sets optopt to val regardless of flag
- */
- if (long_options[match].flag == NULL)
- optopt = long_options[match].val;
- else
- optopt = 0;
- return (BADARG);
- }
- if (long_options[match].has_arg == required_argument ||
- long_options[match].has_arg == optional_argument) {
- if (has_equal)
- optarg = has_equal;
- else if (long_options[match].has_arg ==
- required_argument) {
- /*
- * optional argument doesn't use next nargv
- */
- optarg = nargv[optind++];
- }
- }
- if ((long_options[match].has_arg == required_argument)
- && (optarg == NULL)) {
- /*
- * Missing argument; leading ':' indicates no error
- * should be generated.
- */
- if (PRINT_ERROR)
- warnx(recargstring,
- current_argv);
- /*
- * XXX: GNU sets optopt to val regardless of flag
- */
- if (long_options[match].flag == NULL)
- optopt = long_options[match].val;
- else
- optopt = 0;
- --optind;
- return (BADARG);
- }
- } else { /* unknown option */
- if (short_too) {
- --optind;
- return (-1);
- }
- if (PRINT_ERROR)
- warnx(illoptstring, current_argv);
- optopt = 0;
- return (BADCH);
- }
- if (idx)
- *idx = match;
- if (long_options[match].flag) {
- *long_options[match].flag = long_options[match].val;
- return (0);
- } else
- return (long_options[match].val);
-}
-
-/*
- * getopt_internal --
- * Parse argc/argv argument vector. Called by user level routines.
- */
-static int
-getopt_internal(int nargc, char * const *nargv, const char *options,
- const struct option *long_options, int *idx, int flags)
-{
- const char * oli; /* option letter list index */
- int optchar, short_too;
- static int posixly_correct = -1;
-
- if (options == NULL)
- return (-1);
-
- /*
- * Disable GNU extensions if POSIXLY_CORRECT is set or options
- * string begins with a '+'.
- */
- if (posixly_correct == -1)
- posixly_correct = (getenv("POSIXLY_CORRECT") != NULL);
- if (posixly_correct || *options == '+')
- flags &= ~FLAG_PERMUTE;
- else if (*options == '-')
- flags |= FLAG_ALLARGS;
- if (*options == '+' || *options == '-')
- options++;
-
- /*
- * XXX Some GNU programs (like cvs) set optind to 0 instead of
- * XXX using optreset. Work around this braindamage.
- */
- if (optind == 0)
- optind = optreset = 1;
-
- optarg = NULL;
- if (optreset)
- nonopt_start = nonopt_end = -1;
-start:
- if (optreset || !*place) { /* update scanning pointer */
- optreset = 0;
- if (optind >= nargc) { /* end of argument vector */
- place = EMSG;
- if (nonopt_end != -1) {
- /* do permutation, if we have to */
- permute_args(nonopt_start, nonopt_end,
- optind, nargv);
- optind -= nonopt_end - nonopt_start;
- }
- else if (nonopt_start != -1) {
- /*
- * If we skipped non-options, set optind
- * to the first of them.
- */
- optind = nonopt_start;
- }
- nonopt_start = nonopt_end = -1;
- return (-1);
- }
- if (*(place = nargv[optind]) != '-' ||
- (place[1] == '\0' && strchr(options, '-') == NULL)) {
- place = EMSG; /* found non-option */
- if (flags & FLAG_ALLARGS) {
- /*
- * GNU extension:
- * return non-option as argument to option 1
- */
- optarg = nargv[optind++];
- return (INORDER);
- }
- if (!(flags & FLAG_PERMUTE)) {
- /*
- * If no permutation wanted, stop parsing
- * at first non-option.
- */
- return (-1);
- }
- /* do permutation */
- if (nonopt_start == -1)
- nonopt_start = optind;
- else if (nonopt_end != -1) {
- permute_args(nonopt_start, nonopt_end,
- optind, nargv);
- nonopt_start = optind -
- (nonopt_end - nonopt_start);
- nonopt_end = -1;
- }
- optind++;
- /* process next argument */
- goto start;
- }
- if (nonopt_start != -1 && nonopt_end == -1)
- nonopt_end = optind;
-
- /*
- * If we have "-" do nothing, if "--" we are done.
- */
- if (place[1] != '\0' && *++place == '-' && place[1] == '\0') {
- optind++;
- place = EMSG;
- /*
- * We found an option (--), so if we skipped
- * non-options, we have to permute.
- */
- if (nonopt_end != -1) {
- permute_args(nonopt_start, nonopt_end,
- optind, nargv);
- optind -= nonopt_end - nonopt_start;
- }
- nonopt_start = nonopt_end = -1;
- return (-1);
- }
- }
-
- /*
- * Check long options if:
- * 1) we were passed some
- * 2) the arg is not just "-"
- * 3) either the arg starts with -- we are getopt_long_only()
- */
- if (long_options != NULL && place != nargv[optind] &&
- (*place == '-' || (flags & FLAG_LONGONLY))) {
- short_too = 0;
- if (*place == '-')
- place++; /* --foo long option */
- else if (*place != ':' && strchr(options, *place) != NULL)
- short_too = 1; /* could be short option too */
-
- optchar = parse_long_options(nargv, options, long_options,
- idx, short_too);
- if (optchar != -1) {
- place = EMSG;
- return (optchar);
- }
- }
-
- if ((optchar = (int)*place++) == (int)':' ||
- optchar == (int)'-' && *place != '\0' ||
- (oli = strchr(options, optchar)) == NULL) {
- /*
- * If the user specified "-" and '-' isn't listed in
- * options, return -1 (non-option) as per POSIX.
- * Otherwise, it is an unknown option character (or ':').
- */
- if (optchar == (int)'-' && *place == '\0')
- return (-1);
- if (!*place)
- ++optind;
- if (PRINT_ERROR)
- warnx(illoptchar, optchar);
- optopt = optchar;
- return (BADCH);
- }
- if (long_options != NULL && optchar == 'W' && oli[1] == ';') {
- /* -W long-option */
- if (*place) /* no space */
- /* NOTHING */;
- else if (++optind >= nargc) { /* no arg */
- place = EMSG;
- if (PRINT_ERROR)
- warnx(recargchar, optchar);
- optopt = optchar;
- return (BADARG);
- } else /* white space */
- place = nargv[optind];
- optchar = parse_long_options(nargv, options, long_options,
- idx, 0);
- place = EMSG;
- return (optchar);
- }
- if (*++oli != ':') { /* doesn't take argument */
- if (!*place)
- ++optind;
- } else { /* takes (optional) argument */
- optarg = NULL;
- if (*place) /* no white space */
- optarg = place;
- /* XXX: disable test for :: if PC? (GNU doesn't) */
- else if (oli[1] != ':') { /* arg not optional */
- if (++optind >= nargc) { /* no arg */
- place = EMSG;
- if (PRINT_ERROR)
- warnx(recargchar, optchar);
- optopt = optchar;
- return (BADARG);
- } else
- optarg = nargv[optind];
- } else if (!(flags & FLAG_PERMUTE)) {
- /*
- * If permutation is disabled, we can accept an
- * optional arg separated by whitespace so long
- * as it does not start with a dash (-).
- */
- if (optind + 1 < nargc && *nargv[optind + 1] != '-')
- optarg = nargv[++optind];
- }
- place = EMSG;
- ++optind;
- }
- /* dump back option letter */
- return (optchar);
-}
-
-#ifdef REPLACE_GETOPT
-/*
- * getopt --
- * Parse argc/argv argument vector.
- *
- * [eventually this will replace the BSD getopt]
- */
-int
-getopt(int nargc, char * const *nargv, const char *options)
-{
-
- /*
- * We don't pass FLAG_PERMUTE to getopt_internal() since
- * the BSD getopt(3) (unlike GNU) has never done this.
- *
- * Furthermore, since many privileged programs call getopt()
- * before dropping privileges it makes sense to keep things
- * as simple (and bug-free) as possible.
- */
- return (getopt_internal(nargc, nargv, options, NULL, NULL, 0));
-}
-#endif /* REPLACE_GETOPT */
-
-/*
- * getopt_long --
- * Parse argc/argv argument vector.
- */
-int
-getopt_long(int nargc, char * const *nargv, const char *options,
- const struct option *long_options, int *idx)
-{
-
- return (getopt_internal(nargc, nargv, options, long_options, idx,
- FLAG_PERMUTE));
-}
-
-/*
- * getopt_long_only --
- * Parse argc/argv argument vector.
- */
-int
-getopt_long_only(int nargc, char * const *nargv, const char *options,
- const struct option *long_options, int *idx)
-{
-
- return (getopt_internal(nargc, nargv, options, long_options, idx,
- FLAG_PERMUTE|FLAG_LONGONLY));
-}
-
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