first commit
diff --git a/flashutils/flashutils.c b/flashutils/flashutils.c
new file mode 100644
index 0000000..b71d4fa
--- /dev/null
+++ b/flashutils/flashutils.c
@@ -0,0 +1,160 @@
+#include <signal.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+#include "flashutils/flashutils.h"
+
+int the_flash_type = UNKNOWN;
+
+int device_flash_type()
+{
+ if (the_flash_type == UNKNOWN) {
+ if (access("/dev/block/bml1", F_OK) == 0) {
+ the_flash_type = BML;
+ } else if (access("/proc/emmc", F_OK) == 0) {
+ the_flash_type = MMC;
+ } else if (access("/proc/mtd", F_OK) == 0) {
+ the_flash_type = MTD;
+ } else {
+ the_flash_type = UNSUPPORTED;
+ }
+ }
+ return the_flash_type;
+}
+
+char* get_default_filesystem()
+{
+ return device_flash_type() == MMC ? "ext3" : "yaffs2";
+}
+
+// This was pulled from bionic: The default system command always looks
+// for shell in /system/bin/sh. This is bad.
+#define _PATH_BSHELL "/sbin/sh"
+
+extern char **environ;
+int
+__system(const char *command)
+{
+ pid_t pid;
+ sig_t intsave, quitsave;
+ sigset_t mask, omask;
+ int pstat;
+ char *argp[] = {"sh", "-c", NULL, NULL};
+
+ if (!command) /* just checking... */
+ return(1);
+
+ argp[2] = (char *)command;
+
+ sigemptyset(&mask);
+ sigaddset(&mask, SIGCHLD);
+ sigprocmask(SIG_BLOCK, &mask, &omask);
+ switch (pid = vfork()) {
+ case -1: /* error */
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+ return(-1);
+ case 0: /* child */
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+ execve(_PATH_BSHELL, argp, environ);
+ _exit(127);
+ }
+
+ intsave = (sig_t) bsd_signal(SIGINT, SIG_IGN);
+ quitsave = (sig_t) bsd_signal(SIGQUIT, SIG_IGN);
+ pid = waitpid(pid, (int *)&pstat, 0);
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+ (void)bsd_signal(SIGINT, intsave);
+ (void)bsd_signal(SIGQUIT, quitsave);
+ return (pid == -1 ? -1 : pstat);
+}
+
+int restore_raw_partition(const char *partition, const char *filename)
+{
+ int type = device_flash_type();
+ switch (type) {
+ case MTD:
+ return cmd_mtd_restore_raw_partition(partition, filename);
+ case MMC:
+ return cmd_mmc_restore_raw_partition(partition, filename);
+ case BML:
+ return cmd_bml_restore_raw_partition(partition, filename);
+ default:
+ return -1;
+ }
+}
+
+int backup_raw_partition(const char *partition, const char *filename)
+{
+ int type = device_flash_type();
+ switch (type) {
+ case MTD:
+ return cmd_mtd_backup_raw_partition(partition, filename);
+ case MMC:
+ return cmd_mmc_backup_raw_partition(partition, filename);
+ case BML:
+ return cmd_bml_backup_raw_partition(partition, filename);
+ default:
+ return -1;
+ }
+}
+
+int erase_raw_partition(const char *partition)
+{
+ int type = device_flash_type();
+ switch (type) {
+ case MTD:
+ return cmd_mtd_erase_raw_partition(partition);
+ case MMC:
+ return cmd_mmc_erase_raw_partition(partition);
+ case BML:
+ return cmd_bml_erase_raw_partition(partition);
+ default:
+ return -1;
+ }
+}
+
+int erase_partition(const char *partition, const char *filesystem)
+{
+ int type = device_flash_type();
+ switch (type) {
+ case MTD:
+ return cmd_mtd_erase_partition(partition, filesystem);
+ case MMC:
+ return cmd_mmc_erase_partition(partition, filesystem);
+ case BML:
+ return cmd_bml_erase_partition(partition, filesystem);
+ default:
+ return -1;
+ }
+}
+
+int mount_partition(const char *partition, const char *mount_point, const char *filesystem, int read_only)
+{
+ int type = device_flash_type();
+ switch (type) {
+ case MTD:
+ return cmd_mtd_mount_partition(partition, mount_point, filesystem, read_only);
+ case MMC:
+ return cmd_mmc_mount_partition(partition, mount_point, filesystem, read_only);
+ case BML:
+ return cmd_bml_mount_partition(partition, mount_point, filesystem, read_only);
+ default:
+ return -1;
+ }
+}
+
+int get_partition_device(const char *partition, char *device)
+{
+ int type = device_flash_type();
+ switch (type) {
+ case MTD:
+ return cmd_mtd_get_partition_device(partition, device);
+ case MMC:
+ return cmd_mmc_get_partition_device(partition, device);
+ case BML:
+ return cmd_bml_get_partition_device(partition, device);
+ default:
+ return -1;
+ }
+}