Fix klog saving and text size on emergency reboot screen

Author: Tasssadar

multirom.c

@@ -15,12 +15,12 @@
  * along with MultiROM.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <sys/stat.h> 
+#include <sys/stat.h>
 #include <fcntl.h>
 #include <stdio.h>
 #include <string.h>
 #include <dirent.h>
-#include <sys/types.h> 
+#include <sys/types.h>
 #include <sys/wait.h>
 #include <stdlib.h>
 #include <errno.h>
@@ -252,6 +252,7 @@ void multirom_emergency_reboot(void)
     fb_text_proto *p;
     fb_img *t;
     char *tail;
+    char *last_end;
     int cur_y;
     if(multirom_init_fb(0) < 0)
     {
@@ -271,21 +272,24 @@ void multirom_emergency_reboot(void)
     fb_add_rect(0, t->y + t->h + 5*DPI_MUL, fb_width, 1, GRAYISH);
 
     tail = klog+strlen(klog);
+    last_end = tail;
     cur_y = fb_height;
     const int start_y = (t->y + t->h + 2);
     while(tail > klog)
     {
         --tail;
         if(*tail == '\n')
         {
-            *tail = 0;
-
-            p = fb_text_create(0, cur_y, GRAYISH, 4, tail+1);
+            p = fb_text_create(0, cur_y, GRAYISH, 4*4, NULL);
+            p->text = malloc(last_end - tail);
+            memcpy(p->text, tail + 1, last_end - (tail + 1));
+            p->text[last_end - (tail + 1)] = 0;
             p->style = STYLE_MONOSPACE;
             t = fb_text_finalize(p);
 
             cur_y -= t->h;
             t->y = cur_y;
+            last_end = tail;
 
             if(cur_y < start_y)
             {
@@ -875,7 +879,7 @@ void multirom_import_internal(void)
     char path[256];
 
     // multirom
-    mkdir(multirom_dir, 0777); 
+    mkdir(multirom_dir, 0777);
 
     // roms
     snprintf(path, sizeof(path), "%s/roms", multirom_dir);
@@ -1169,7 +1173,7 @@ int multirom_prep_android_mounts(struct multirom_rom *rom)
     if(has_fw)
         mkdir_with_perms("/firmware", 0771, "system", "system");
 
-    static const char *folders[2][3] = 
+    static const char *folders[2][3] =
     {
         { "system", "data", "cache" },
         { "system.img", "data.img", "cache.img" },
@@ -1277,7 +1281,8 @@ int multirom_process_android_fstab(char *fstab_name, int has_fw, struct fstab_pa
     if(!tab)
         goto exit;
 
-    if(fstab_disable_part(tab, "/system") || fstab_disable_part(tab, "/data") || fstab_disable_part(tab, "/cache"))
+    const int disable_res = fstab_disable_part(tab, "/system") + fstab_disable_part(tab, "/data") + fstab_disable_part(tab, "/cache");
+    if(disable_res != 0)
     {
 #if MR_DEVICE_HOOKS >= 4
         if(!mrom_hook_allow_incomplete_fstab())