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Fixed stack overflow bug in bc26.c

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if (!str) 
    {
        return -1;
    }
This commit is contained in:
David Lin
2020-08-10 17:59:53 +08:00
committed by GitHub
parent ad5f75d4a3
commit 970a6d536c
1 changed files with 12 additions and 0 deletions
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12
devices/bc26/bc26.c
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@@ -118,6 +118,10 @@ static int bc26_signal_quality_check(void)
} }
str = strstr(echo.buffer, "+CSQ:"); str = strstr(echo.buffer, "+CSQ:");
if (!str)
{
return -1;
}
sscanf(str, "+CSQ:%d,%d", &rssi, &ber); sscanf(str, "+CSQ:%d,%d", &rssi, &ber);
if (rssi == 99) { if (rssi == 99) {
return -1; return -1;
@@ -156,6 +160,10 @@ static int bc26_band_check(void)
} }
str = strstr(echo.buffer, "+QBAND:"); str = strstr(echo.buffer, "+QBAND:");
if (!str)
{
return -1;
}
sscanf(str, "+QBAND:%d", &band); sscanf(str, "+QBAND:%d", &band);
if (band != 8) { if (band != 8) {
return -1; return -1;
@@ -236,6 +244,10 @@ static int bc26_connect(const char *ip, const char *port, sal_proto_t proto)
return -1; return -1;
} }
str = strstr(echo.buffer, "+QSOC="); str = strstr(echo.buffer, "+QSOC=");
if (!str)
{
return -1;
}
sscanf(str, "+QSOC=%d", &id); sscanf(str, "+QSOC=%d", &id);
printf("get socket id is %d\r\n",id); printf("get socket id is %d\r\n",id);