Moved getopt from pjsua-lib to pjlib-util
git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@359 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjlib-util/include/pjlib-util.h b/pjlib-util/include/pjlib-util.h
index 6ef9119..33f8e0d 100644
--- a/pjlib-util/include/pjlib-util.h
+++ b/pjlib-util/include/pjlib-util.h
@@ -20,6 +20,7 @@
#define __PJLIB_UTIL_H__
#include <pjlib-util/errno.h>
+#include <pjlib-util/getopt.h>
#include <pjlib-util/md5.h>
#include <pjlib-util/scanner.h>
#include <pjlib-util/stun.h>
diff --git a/pjlib-util/include/pjlib-util/getopt.h b/pjlib-util/include/pjlib-util/getopt.h
new file mode 100644
index 0000000..bb8c673
--- /dev/null
+++ b/pjlib-util/include/pjlib-util/getopt.h
@@ -0,0 +1,136 @@
+/* $Id$ */
+/* This file has now become GPL. */
+/* Declarations for pj_getopt.
+ Copyright (C) 1989,90,91,92,93,94,96,97,98 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library 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.
+
+ The GNU C Library 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 the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef __PJ_GETOPT_H__
+#define __PJ_GETOPT_H__ 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* For communication from `pj_getopt' to the caller.
+ When `pj_getopt' finds an option that takes an argument,
+ the argument value is returned here.
+ Also, when `ordering' is RETURN_IN_ORDER,
+ each non-option ARGV-element is returned here. */
+
+extern char *pj_optarg;
+
+/* Index in ARGV of the next element to be scanned.
+ This is used for communication to and from the caller
+ and for communication between successive calls to `pj_getopt'.
+
+ On entry to `pj_getopt', zero means this is the first call; initialize.
+
+ When `pj_getopt' returns -1, this is the index of the first of the
+ non-option elements that the caller should itself scan.
+
+ Otherwise, `pj_optind' communicates from one call to the next
+ how much of ARGV has been scanned so far. */
+
+extern int pj_optind;
+
+/* Callers store zero here to inhibit the error message `pj_getopt' prints
+ for unrecognized options. */
+
+extern int pj_opterr;
+
+/* Set to an option character which was unrecognized. */
+
+extern int pj_optopt;
+
+/* Describe the long-named options requested by the application.
+ The LONG_OPTIONS argument to pj_getopt_long or pj_getopt_long_only is a vector
+ of `struct pj_getopt_option' terminated by an element containing a name which is
+ zero.
+
+ The field `has_arg' is:
+ no_argument (or 0) if the option does not take an argument,
+ required_argument (or 1) if the option requires an argument,
+ optional_argument (or 2) if the option takes an optional argument.
+
+ If the field `flag' is not NULL, it points to a variable that is set
+ to the value given in the field `val' when the option is found, but
+ left unchanged if the option is not found.
+
+ To have a long-named option do something other than set an `int' to
+ a compiled-in constant, such as set a value from `pj_optarg', set the
+ option's `flag' field to zero and its `val' field to a nonzero
+ value (the equivalent single-letter option character, if there is
+ one). For long options that have a zero `flag' field, `pj_getopt'
+ returns the contents of the `val' field. */
+
+struct pj_getopt_option
+{
+ const char *name;
+ /* has_arg can't be an enum because some compilers complain about
+ type mismatches in all the code that assumes it is an int. */
+ int has_arg;
+ int *flag;
+ int val;
+};
+
+/* Names for the values of the `has_arg' field of `struct pj_getopt_option'. */
+
+# define no_argument 0
+# define required_argument 1
+# define optional_argument 2
+
+
+/* Get definitions and prototypes for functions to process the
+ arguments in ARGV (ARGC of them, minus the program name) for
+ options given in OPTS.
+
+ Return the option character from OPTS just read. Return -1 when
+ there are no more options. For unrecognized options, or options
+ missing arguments, `pj_optopt' is set to the option letter, and '?' is
+ returned.
+
+ The OPTS string is a list of characters which are recognized option
+ letters, optionally followed by colons, specifying that that letter
+ takes an argument, to be placed in `pj_optarg'.
+
+ If a letter in OPTS is followed by two colons, its argument is
+ optional. This behavior is specific to the GNU `pj_getopt'.
+
+ The argument `--' causes premature termination of argument
+ scanning, explicitly telling `pj_getopt' that there are no more
+ options.
+
+ If OPTS begins with `--', then non-option arguments are treated as
+ arguments to the option '\0'. This behavior is specific to the GNU
+ `pj_getopt'. */
+
+int pj_getopt (int argc, char *const *argv, const char *shortopts);
+
+int pj_getopt_long (int argc, char *const *argv, const char *options,
+ const struct pj_getopt_option *longopts, int *longind);
+int pj_getopt_long_only (int argc, char *const *argv,
+ const char *shortopts,
+ const struct pj_getopt_option *longopts, int *longind);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* pj_getopt.h */
+