91 lines
1.9 KiB
C
91 lines
1.9 KiB
C
/*
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* This file is part of MultiROM.
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*
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* MultiROM is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* MultiROM is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with MultiROM. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include <stdio.h>
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#include "mrom_data.h"
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static char multirom_dir[128] = { 0 };
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static char log_tag[64] = { 0 };
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void mrom_set_dir(const char *mrom_dir)
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{
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snprintf(multirom_dir, sizeof(multirom_dir), "%s", mrom_dir);
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}
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void mrom_set_log_tag(const char *tag)
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{
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snprintf(log_tag, sizeof(log_tag), "%s", tag);
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}
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const char *mrom_log_tag(void)
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{
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return log_tag;
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}
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const char *mrom_dir(void)
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{
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return multirom_dir;
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}
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int mrom_is_second_boot(void)
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{
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int i;
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int res = 0;
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FILE *f = NULL;
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char buff[2048];
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static const char *kmsg_paths[] = {
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"/proc/last_kmsg",
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"/sys/fs/pstore/console-ramoops",
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NULL,
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};
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f = fopen("/proc/cmdline", "re");
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if(f)
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{
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if(fgets(buff, sizeof(buff), f) && strstr(buff, "mrom_kexecd=1"))
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{
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res = 1;
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goto exit;
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}
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fclose(f);
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f = NULL;
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}
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for(i = 0; !f && kmsg_paths[i]; ++i)
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f = fopen(kmsg_paths[i], "re");
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if(!f)
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return 0;
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while(fgets(buff, sizeof(buff), f))
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{
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if(strstr(buff, SECOND_BOOT_KMESG))
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{
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res = 1;
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goto exit;
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}
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}
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exit:
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fclose(f);
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return res;
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}
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