esp32 cellular modem driver fix

1 files changed, 3 insertions, 5 deletions

diff --git a/fw/esp32/components/eos/cell_pdp.c b/fw/esp32/components/eos/cell_pdp.c
index fc4739a..d04b66b 100644
--- a/fw/esp32/components/eos/cell_pdp.c
+++ b/fw/esp32/components/eos/cell_pdp.c
@@ -13,16 +13,14 @@ void eos_cell_pdp_handler(unsigned char mtype, unsigned char *buffer, uint16_t b
         case EOS_CELL_MTYPE_PDP_SET_USR:
         case EOS_CELL_MTYPE_PDP_SET_PWD: {
             char *arg;
-            size_t arg_len;
 
             buffer++;
             buf_len--;
 
             arg = (char *)buffer;
-            arg_len = strnlen(arg, buf_len);
-            if (arg_len == buf_len) break;
-            if (arg_len >= EOS_CELL_PDP_SIZE_ARG) break;
+            if (buf_len > EOS_CELL_PDP_SIZE_ARG) break;
 
+            buffer[buf_len] = '\0';
             switch (mtype) {
                 case EOS_CELL_MTYPE_PDP_SET_APN: {
                     eos_ppp_set_apn(arg);
@@ -66,7 +64,7 @@ void eos_cell_pdp_handler(unsigned char mtype, unsigned char *buffer, uint16_t b
                 }
             }
 
-            eos_net_reply(EOS_NET_MTYPE_CELL, buffer, 1 + strlen(arg));
+            eos_net_reply(EOS_NET_MTYPE_CELL, buffer, strlen(arg) + 1);
             break;
         }