diff options
| -rw-r--r-- | src/idevicerestore.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/idevicerestore.c b/src/idevicerestore.c index edf88f8..f1454fc 100644 --- a/src/idevicerestore.c +++ b/src/idevicerestore.c @@ -1260,6 +1260,30 @@ int ipsw_extract_filesystem(const char* ipsw, plist_t build_identity, char** fil return -1; } + // check if we already have an extracted filesystem + // for /path/X.ipsw we check /path/X/[filename].dmg + char tmpf[1024]; + strcpy(tmpf, ipsw); + char* p = strrchr((const char*)tmpf, '.'); + if (p) { + *p = '\0'; + } + strcat(tmpf, "/"); + strcat(tmpf, filename); + + struct stat st; + memset(&st, '\0', sizeof(struct stat)); + if (stat(tmpf, &st) == 0) { + off_t fssize = 0; + ipsw_get_file_size(ipsw, filename, &fssize); + if ((fssize > 0) && (st.st_size == fssize)) { + info("Using cached filesystem from '%s'\n", tmpf); + *filesystem = strdup(tmpf); + free(filename); + return 0; + } + } + char* outfile = tempnam(NULL, "ipsw_"); if (!outfile) { error("WARNING: Could not get temporary filename!\n"); |