145 lines
3.6 KiB
C
145 lines
3.6 KiB
C
/*
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* Copyright (c) 2013, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google, Inc. nor the names of its contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <fcntl.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include "protocol.h"
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#include "utils.h"
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#include "debug.h"
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// TODO: change config path
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#define CONFIG_PATH "/data/fastboot.cfg"
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static int config_parse_line(char *line)
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{
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char *c;
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char *key;
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char *value;
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c = strchr(line, '#');
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if (c)
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*c = '\0';
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if (strspn(line, " \t") == strlen(line))
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return 0;
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c = strchr(line, '=');
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if (c == NULL)
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return -1;
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key = line;
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*c = '\0';
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value = c + 1;
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key = strip(key);
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value = strip(value);
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key = strdup(key);
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value = strdup(value);
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fastboot_publish(key, value);
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return 0;
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}
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static void config_parse(char *buffer)
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{
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char *saveptr;
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char *str = buffer;
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char *line = buffer;
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int c;
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int ret;
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for (c = 1; line != NULL; c++) {
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line = strtok_r(str, "\r\n", &saveptr);
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if (line != NULL) {
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D(VERBOSE, "'%s'", line);
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ret = config_parse_line(line);
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if (ret < 0) {
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D(WARN, "error parsing " CONFIG_PATH " line %d", c);
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}
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}
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str = NULL;
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}
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}
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void config_init()
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{
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int fd;
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off_t len;
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ssize_t ret;
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size_t count = 0;
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char *buffer;
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fd = open(CONFIG_PATH, O_RDONLY);
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if (fd < 0) {
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D(ERR, "failed to open " CONFIG_PATH);
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return;
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}
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len = lseek(fd, 0, SEEK_END);
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if (len < 0) {
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D(ERR, "failed to seek to end of " CONFIG_PATH);
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return;
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}
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lseek(fd, 0, SEEK_SET);
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buffer = malloc(len + 1);
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if (buffer == NULL) {
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D(ERR, "failed to allocate %ld bytes", len);
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return;
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}
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while (count < (size_t)len) {
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ret = read(fd, buffer + count, len - count);
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if (ret < 0 && errno != EINTR) {
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D(ERR, "failed to read " CONFIG_PATH ": %d %s", errno, strerror(errno));
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return;
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}
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if (ret == 0) {
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D(ERR, "early EOF reading " CONFIG_PATH);
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return;
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}
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count += ret;
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}
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buffer[len] = '\0';
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config_parse(buffer);
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free(buffer);
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}
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