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/*
* Copyright (c) 2013, Google Inc.
* 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 Google, Inc. 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 <fcntl.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include "protocol.h"
#include "debug.h"
// TODO: change config path
#define CONFIG_PATH "/data/fastboot.cfg"
static char *strip(char *str)
{
int n;
n = strspn(str, " \t");
str += n;
for (n = strlen(str) - 1; n >= 0; n--) {
if (str[n] == ' ' || str[n] == '\t')
str[n] = '\0';
else
break;
}
return str;
}
static int config_parse_line(char *line)
{
char *c;
char *key;
char *value;
c = strchr(line, '#');
if (c)
*c = '\0';
if (strspn(line, " \t") == strlen(line))
return 0;
c = strchr(line, '=');
if (c == NULL)
return -1;
key = line;
*c = '\0';
value = c + 1;
key = strip(key);
value = strip(value);
key = strdup(key);
value = strdup(value);
fastboot_publish(key, value);
return 0;
}
static void config_parse(char *buffer)
{
char *saveptr;
char *str = buffer;
char *line = buffer;
int c;
int ret;
for (c = 1; line != NULL; c++) {
line = strtok_r(str, "\r\n", &saveptr);
if (line != NULL) {
D(VERBOSE, "'%s'", line);
ret = config_parse_line(line);
if (ret < 0) {
D(WARN, "error parsing " CONFIG_PATH " line %d", c);
}
}
str = NULL;
}
}
void config_init()
{
int fd;
off_t len;
ssize_t ret;
size_t count = 0;
char *buffer;
fd = open(CONFIG_PATH, O_RDONLY);
if (fd < 0) {
D(ERR, "failed to open " CONFIG_PATH);
return;
}
len = lseek(fd, 0, SEEK_END);
if (len < 0) {
D(ERR, "failed to seek to end of " CONFIG_PATH);
return;
}
lseek(fd, 0, SEEK_SET);
buffer = malloc(len + 1);
if (buffer == NULL) {
D(ERR, "failed to allocate %ld bytes", len);
return;
}
while (count < (size_t)len) {
ret = read(fd, buffer + count, len - count);
if (ret < 0 && errno != EINTR) {
D(ERR, "failed to read " CONFIG_PATH ": %d %s", errno, strerror(errno));
return;
}
if (ret == 0) {
D(ERR, "early EOF reading " CONFIG_PATH);
return;
}
count += ret;
}
buffer[len] = '\0';
config_parse(buffer);
free(buffer);
}
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