freeswitch plugin: Copied all esl libs in libesl and modified Makefile

[collectd.git] / src / libesl / esl_config.h

diff --git a/src/libesl/esl_config.h b/src/libesl/esl_config.h
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+/*
+ * Copyright (c) 2007, Anthony Minessale II
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 
+ * * 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.
+ * 
+ * * Neither the name of the original author; nor the names of any contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ * 
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER
+ * 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.
+ */
+
+/**
+ * @defgroup config Config File Parser
+ * @ingroup config
+ * This module implements a basic interface and file format parser
+ * 
+ * <pre>
+ *
+ * EXAMPLE 
+ * 
+ * [category1]
+ * var1 => val1
+ * var2 => val2
+ * \# lines that begin with \# are comments
+ * \#var3 => val3
+ * </pre>
+ * @{
+ */
+
+#ifndef ESL_CONFIG_H
+#define ESL_CONFIG_H
+
+#include "esl.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* defined(__cplusplus) */
+
+
+#define ESL_URL_SEPARATOR "://"
+
+
+#ifdef WIN32
+#define ESL_PATH_SEPARATOR "\\"
+#ifndef ESL_CONFIG_DIR
+#define ESL_CONFIG_DIR "c:\\openesl"
+#endif
+#define esl_is_file_path(file) (*(file +1) == ':' || *file == '/' || strstr(file, SWITCH_URL_SEPARATOR))
+#else
+#define ESL_PATH_SEPARATOR "/"
+#ifndef ESL_CONFIG_DIR
+#define ESL_CONFIG_DIR "/etc/openesl"
+#endif
+#define esl_is_file_path(file) ((*file == '/') || strstr(file, SWITCH_URL_SEPARATOR))
+#endif
+
+/*!
+  \brief Evaluate the truthfullness of a string expression
+  \param expr a string expression
+  \return true or false 
+*/
+#define esl_true(expr)\
+(expr && ( !strcasecmp(expr, "yes") ||\
+!strcasecmp(expr, "on") ||\
+!strcasecmp(expr, "true") ||\
+!strcasecmp(expr, "enabled") ||\
+!strcasecmp(expr, "active") ||\
+!strcasecmp(expr, "allow") ||\
+atoi(expr))) ? 1 : 0
+
+/*!
+  \brief Evaluate the falsefullness of a string expression
+  \param expr a string expression
+  \return true or false 
+*/
+#define esl_false(expr)\
+(expr && ( !strcasecmp(expr, "no") ||\
+!strcasecmp(expr, "off") ||\
+!strcasecmp(expr, "false") ||\
+!strcasecmp(expr, "disabled") ||\
+!strcasecmp(expr, "inactive") ||\
+!strcasecmp(expr, "disallow") ||\
+!atoi(expr))) ? 1 : 0
+
+typedef struct esl_config esl_config_t;
+
+/*! \brief A simple file handle representing an open configuration file **/
+struct esl_config {
+       /*! FILE stream buffer to the opened file */
+       FILE *file;
+       /*! path to the file */
+       char path[512];
+       /*! current category */
+       char category[256];
+       /*! current section */
+       char section[256];
+       /*! buffer of current line being read */
+       char buf[1024];
+       /*! current line number in file */
+       int lineno;
+       /*! current category number in file */
+       int catno;
+       /*! current section number in file */
+       int sectno;
+
+       int lockto;
+};
+
+/*!
+  \brief Open a configuration file
+  \param cfg (esl_config_t *) config handle to use
+  \param file_path path to the file
+  \return 1 (true) on success 0 (false) on failure
+*/
+ESL_DECLARE(int) esl_config_open_file(esl_config_t * cfg, const char *file_path);
+
+/*!
+  \brief Close a previously opened configuration file
+  \param cfg (esl_config_t *) config handle to use
+*/
+ESL_DECLARE(void) esl_config_close_file(esl_config_t * cfg);
+
+/*!
+  \brief Retrieve next name/value pair from configuration file
+  \param cfg (esl_config_t *) config handle to use
+  \param var pointer to aim at the new variable name
+  \param val pointer to aim at the new value
+*/
+ESL_DECLARE(int) esl_config_next_pair(esl_config_t * cfg, char **var, char **val);
+
+/*!
+  \brief Retrieve the CAS bits from a configuration string value
+  \param strvalue pointer to the configuration string value (expected to be in format whatever:xxxx)
+  \param outbits pointer to aim at the CAS bits
+*/
+ESL_DECLARE(int) esl_config_get_cas_bits(char *strvalue, unsigned char *outbits);
+
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif /* defined(__cplusplus) */
+
+#endif /* defined(ESL_CONFIG_H) */
+
+/* For Emacs:
+ * Local Variables:
+ * mode:c
+ * indent-tabs-mode:t
+ * tab-width:4
+ * c-basic-offset:4
+ * End:
+ * For VIM:
+ * vim:set softtabstop=4 shiftwidth=4 tabstop=4 expandtab:
+ */