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/*
* Copyright (c) 2012 - 2013, Intel Corporation
*
* 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 Intel Corporation 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 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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <stdbool.h>
const char *mrp_env_config_key(const char *config, const char *key)
{
const char *beg;
int len;
if (config != NULL) {
len = strlen(key);
beg = config;
while (beg != NULL) {
beg = strstr(beg, key);
if (beg != NULL) {
if ((beg == config || beg[-1] == ':') &&
(beg[len] == '=' || beg[len] == ':' || beg[len] == '\0'))
return (beg[len] == '=' ? beg + len + 1 : "");
else
beg++;
}
}
}
return NULL;
}
int32_t mrp_env_config_int32(const char *cfg, const char *key, int32_t defval)
{
const char *v;
char *end;
int i;
v = mrp_env_config_key(cfg, key);
if (v != NULL) {
if (*v) {
i = strtol(v, &end, 10);
if (end && (!*end || *end == ':'))
return i;
}
}
return defval;
}
uint32_t mrp_env_config_uint32(const char *cfg, const char *key,
uint32_t defval)
{
const char *v;
char *end;
int i;
v = mrp_env_config_key(cfg, key);
if (v != NULL) {
if (*v) {
i = strtol(v, &end, 10);
if (end && (!*end || *end == ':'))
return i;
}
}
return defval;
}
int mrp_env_config_bool(const char *config, const char *key, bool defval)
{
const char *v;
v = mrp_env_config_key(config, key);
if (v != NULL) {
if (*v) {
if ((!strncasecmp(v, "false", 5) && (v[5] == ':' || !v[5])) ||
(!strncasecmp(v, "true" , 4) && (v[4] == ':' || !v[4])))
return (v[0] == 't' || v[0] == 'T');
if ((!strncasecmp(v, "no" , 2) && (v[2] == ':' || !v[2])) ||
(!strncasecmp(v, "yes", 3) && (v[3] == ':' || !v[3])))
return (v[0] == 'y' || v[0] == 'Y');
if ((!strncasecmp(v, "on" , 2) && (v[2] == ':' || !v[2])) ||
(!strncasecmp(v, "off", 3) && (v[3] == ':' || !v[3])))
return (v[1] == 'n' || v[1] == 'N');
}
else if (*v == '\0')
return !defval; /* hmm... is this right */
}
return defval;
}
int mrp_env_config_string(const char *cfg, const char *key,
const char *defval, char *buf, size_t size)
{
const char *v;
char *end;
int len;
v = mrp_env_config_key(cfg, key);
if (v == NULL)
v = defval;
end = strchr(v, ':');
if (end != NULL)
len = end - v;
else
len = strlen(v);
len = snprintf(buf, size, "%*.*s", len, len, v);
if (len >= (int)size - 1)
buf[size - 1] = '\0';
return len;
}
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