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uC restarts after run strcpy().

 
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ricardom



Joined: 04 Nov 2016
Posts: 1

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uC restarts after run strcpy().
PostPosted: Fri Nov 04, 2016 1:00 pm     Reply with quote
I'm working on a command line interpreter on a dsPIC30F4011. I want to get the args from a string that i get from the UART port. The problem: I can get my tokens without any problem, but when i try to copy them to **argv the uC restarts. Am I doing something wrong?.

Btw this function is just a test, right now i'm not intrested on free the memory after using the pointers, i just want to copy tok to a space in argv.

Code:
void parser_argv(char* inputStr)
{    
   char  **argv = malloc(8*sizeof(char*));
     char *auxStr = malloc(BUFFER_SIZE * sizeof(char*));
     unsigned int argc = 0;

     strcpy(auxStr,inputStr);
   char *tok = strtok (auxStr,delimiters);

   if(tok != NULL){
      fprintf(PC_UART,"First Val %s\n",tok);
      while(tok !=NULL){
         tok = strtok (NULL, delimiters);
         strcpy(argv[argc],tok);
         fprintf(PC_UART,"token %s %s\n",argv[argc],tok);
         argc++;
      }
   }
}


Thanks.
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Fri Nov 04, 2016 5:12 pm     Reply with quote
See this thread at the end:
http://www.ccsinfo.com/forum/viewtopic.php?t=54023
ie., dsPIC stack size.
Ttelmah



Joined: 11 Mar 2010
Posts: 19552

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PostPosted: Sat Nov 05, 2016 2:25 am     Reply with quote
and (of course), has the input string got a null terminator?.
Unless it has strcpy will walk through the memory.
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