Pro*C unable to read parameter passing from korn shell script - shell

Question

I have a korn shell script which will pass 4 parameters to a Pro*C file
The syntax of the korn shell script are below:
### $command_dir/proc_file_name / $deptid $txdate $pid
### I hardcode the values for testing
$command_dir/proc_file_name / 701 20170109 201701094444001
The syntax of the Pro*C file:
....
main(argc, argv)
int argc
char *argv[];
username.len=strlen(argv[1]);
strncpy((char*)username.arr, argv[1],username.len);
username.arr[username.len]='\0';
deptid.len=strlen(argv[1]);
strncpy((char*)deptid.arr, argv[1],deptid.len);
deptid.arr[deptid.len]='\0';
txdate.len=strlen(argv[1]);
strncpy((char*)txdate.arr, argv[1],txdate.len);
txdate.arr[txdate.len]='\0';
pid=atoi(argv[4]);
printf("\n%s\n", username);
printf("\n%d\n", deptid);
printf("\n%d\n", txdate);
printf("\n%d\n", pid);
....
I found that the values of the parameters were not I put.
Please help...
Many Many thanks

Answer 1

You are using the same array index of 1 for username, deptid, and txdate. Correct that and you would be good.
Accessing argv[1] etc., without checking argc isn't a good practice. When invoked without arguments, your code will result in a core dump.
Also, I don't think your code has the right syntax. Can you please paste the code that compiles?