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authorGravatar Nikias Bassen2013-11-18 18:01:16 +0100
committerGravatar Nikias Bassen2013-11-18 18:01:16 +0100
commite5bbb647163e69d4ac0cc09eecfe65eac0f63704 (patch)
tree14625a6173bad6ab8568e50c2e43ba1bf6655ba6 /src
parentde4fc4c8d1d60d01d910dd2e0ae1305aab2131e9 (diff)
downloadlibirecovery-e5bbb647163e69d4ac0cc09eecfe65eac0f63704.tar.gz
libirecovery-e5bbb647163e69d4ac0cc09eecfe65eac0f63704.tar.bz2
change irecv_get_nonce to a more general irecv_get_nonce_with_tag
Diffstat (limited to 'src')
-rw-r--r--src/libirecovery.c48
1 files changed, 41 insertions, 7 deletions
diff --git a/src/libirecovery.c b/src/libirecovery.c
index 7ba2dd9..f189838 100644
--- a/src/libirecovery.c
+++ b/src/libirecovery.c
@@ -1310,11 +1310,15 @@ irecv_error_t irecv_get_imei(irecv_client_t client, char* imei) {
return IRECV_E_SUCCESS;
}
-irecv_error_t irecv_get_nonce(irecv_client_t client, unsigned char** nonce, int* nonce_size) {
+irecv_error_t irecv_get_nonce_with_tag(irecv_client_t client, const char* tag, unsigned char** nonce, int* nonce_size) {
if (check_context(client) != IRECV_E_SUCCESS)
return IRECV_E_NO_DEVICE;
- unsigned char buf[255];
+ if (tag == NULL) {
+ return IRECV_E_INVALID_INPUT;
+ }
+
+ char buf[255];
int len;
*nonce = NULL;
@@ -1327,15 +1331,45 @@ irecv_error_t irecv_get_nonce(irecv_client_t client, unsigned char** nonce, int*
}
buf[len] = 0;
- debug("%s: buf='%s'\n", __func__, buf);
+ debug("%s: buf='%s' tag='%s'\n", __func__, buf, tag);
+
+ int taglen = strlen(tag);
+ int nlen = 0;
+ char* nonce_string = NULL;
+ char* p = buf;
+ char* colon = NULL;
+ do {
+ colon = strchr(p, ':');
+ if (!colon)
+ break;
+ if (colon-taglen < p) {
+ break;
+ }
+ char *space = strchr(colon, ' ');
+ if (strncmp(colon-taglen, tag, taglen) == 0) {
+ p = colon+1;
+ if (!space) {
+ nlen = strlen(p);
+ } else {
+ nlen = space-p;
+ }
+ nonce_string = p;
+ nlen/=2;
+ break;
+ } else {
+ if (!space) {
+ break;
+ } else {
+ p = space+1;
+ }
+ }
+ } while (colon);
- char* nonce_string = strstr((char*)buf, "NONC:");
- if (nonce_string == NULL) {
+ if (nlen == 0) {
+ debug("%s: ERROR: couldn't find tag %s in string %s\n", __func__, tag, buf);
return IRECV_E_UNKNOWN_ERROR;
}
- nonce_string+=5;
- int nlen = (len - ((unsigned char*)nonce_string - &buf[0])) / 2;
unsigned char *nn = malloc(nlen);
if (!nn) {
return IRECV_E_OUT_OF_MEMORY;