BenStlr
October 10, 2015, 11:36am
1
I have this :
uint8_t buffer[128] = {0};
uint8_t mux_id;
uint32_t len = wifi.recv(&mux_id, buffer, sizeof(buffer), 100);
char serverData[130]={0};
if (len > 0)
{
for(uint32_t i = 0; i < len; i++)
{
serverData[i]=(char)buffer[i];
Serial.print(serverData[i]); //****prints the whole data as required
}
//serverData[len ] = '\0';
Serial.println("abc");
Serial.println(serverData); // ***prints part of it!!
If i print the serverData char by char i get the WHOLE string (long get respond) , but when i then print it again as a full string, i get exactly half of the data .
Why ?
Because there is an embedded '\0' in your data?
It is in the strlen(serverData) position, maybe some more behind that position.
BenStlr
October 10, 2015, 11:48am
3
What ??? i dont understand your English . its a question mark ? or is it a fact ?? a question you ask me ??
The sentence is so vague and not focused .
The null termination that is commented , was there when i check and it didn't helped anyway .
And with regard to your Question:
Yes, printing and dumping a buffer is different.
In your loop you just print the embedded '\0',
system
October 10, 2015, 11:49am
5
You are not NULL terminating the array, so it is NOT a string. Passing it to a function that expects a string is wrong.
Instead of the anonymous printing you are doing now, use
Serial.print(i);
Serial.print(" >");
Serial.print(serverData[i];
Serial.println("<");
I suspect that the server data contains non-printing characters, possibly even some NULLs.
BenStlr:
Very funny response, as I told you the exact place of your error.
[OFFTOPIC]
And I didn't even comment the 'code', nor its format, style, or efficiency.
[/OFFTOPIC]
BenStlr
October 10, 2015, 11:58am
8
@PaulS but as i wrote already, i have added the line :
serverData[len ] = '\0';
Which didn't changed anything .
The data that i print (when its full- in the first place )
GET /seti:home:num HTTP/1.1/
Is there an option that / causing the termination ?
system
October 10, 2015, 2:19pm
9
Is there an option that / causing the termination ?
No. Did you print the data the way I suggested? If no, don't bother coming back until you do.