Re: printf showing junk data in stdout

Hi Lim,

Sorry, I did not cut and paste the code correctly in my OP. Below is
what the code looks like

I can't see anything wrong with your code, and indeed, I tried it on my own system, and did not have the problem you've described. However, since the code you posted wasn't a complete program, I had to add some code to make it work (maybe that makes it different)?

What Simon says is true, of course. But, I'm not sure that it applies to your situation, since you stated that you were calling it with the following command (this is a copy/paste from your message):

CALL PGM(*LIBL/RUN_ECDSTP) PARM('NOCC07QA' '5553' '*LIBL' UA_STP3)

Since all of your parms are literals on the command-line, and not variables from another program, they should all be null-terminated properly. And, indeed, when I ran your code, I didn't see any garbage.

Here's the code I test with:


#include <stdio.h>
#include <string.h>
#include <time.h>


int get_time_stamp(char sString[])
{
time_t thetime;
struct tm *usetime;
char sTime[20];

time(&thetime);
usetime=localtime(&thetime);
sprintf(sTime,"%02d/",usetime->tm_mon+1);
sprintf(sTime+3,"%02d/",usetime->tm_mday);
sprintf(sTime+6,"%4u ", usetime->tm_year + 1900);
sprintf(sTime+11,"%02d:",usetime->tm_hour);
sprintf(sTime+14,"%02d:",usetime->tm_min );
sprintf(sTime+17,"%02d",usetime->tm_sec );
strcpy(sString,sTime);
return(1);
}


void
printThis(char *text)
{
char stime[20];

memset(stime, 0x0, sizeof(stime));
get_time_stamp(stime);
printf("%s %s\n", stime, text);
}


int main(int argc, char **argv) {

char printThisBuf[110];

sprintf(printThisBuf, "argv[0]->%s\n", argv[0]);
printThis(printThisBuf);

sprintf(printThisBuf, "argv[1]->%s\n", argv[1]);
printThis(printThisBuf);

sprintf(printThisBuf, "argv[2]->%s\n", argv[2]);
printThis(printThisBuf);

sprintf(printThisBuf, "argv[3]->%s\n", argv[3]);
printThis(printThisBuf);

return 0;
}