Not sure if I understood your question completely, but here it goes anyway... You can define a C program to take arbitrary number of parameters by declaring it as: void main(int argc, char * argv) argc would tell you how many arguments (parameters) were passed in and argv is an array holding pointers to those parameters, with argv containing a special value, qualified name of the program itself (i.e. QGPL/MYPGM). If first parameter is an integer you can dereference the pointer by doing: int firstParm = *(int *)argv; What this does is cast default character pointer to a integer pointer, dereferences the address and finally assigns the value to the local variable firstParm. If the input is a character string there is no need to dereference anything. Hope this helps. Elvis -----Original Message----- From: c400-l-bounces@xxxxxxxxxxxx [mailto:c400-l-bounces@xxxxxxxxxxxx] On Behalf Of Glen Marchesani Sent: Tuesday, June 10, 2003 7:22 PM To: c400-l@xxxxxxxxxxxx Subject: [C400-L] calling a program using a variable Hello, I am looking for a C/MI api that lets me call a program (library and program name are variable) with a variable set of parameters. I have a client server app where the server is an AS400 ILE C program. The program allows a remote program call. The client passes the library and program to call with the paremeter types (input, output, both), length and data if it is (input or both). It then calls the program passing the parameters and allocating the appropriate memory for each parm. When the call is complete it takes the parameters and passes the output and both parms back to the client. I am currently calling an RPG program to do the actual call. Here is the code c call(e) program c parm parm01 c parm parm02 c parm parm03 . . . c parm parm98 c parm parm99 where parm01..parm99 are based on pointers. It is *UGLY but it works. Well not completely. It doesn't work for CLP because the init of CLP sees 100 parms being passed and some IBM api's also have this feature (for lack of a better word). Which means for each CLP and IBM api I wrap the call in an RPG program that calls the CLP/IBM api with the correct parms. look forward to hearing everyone's cleverness, with a smile, Glen PS I know that there are as400 servers that could do this for me but for architectural reasons they are not an option as this server needs to be easily proxied and work inside an already existing tcp tunneling architecture. _______________________________________________ This is the C programming iSeries / AS400 (C400-L) mailing list To post a message email: C400-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/mailman/listinfo/c400-l or email: C400-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/c400-l.