If you don’t understand the question then it's doubtless because I don't either. Let me explain more fully, and maybe it'll show what part of my ignorance needs to be filled in, so to speak.
I'm familiar with a number of 3GL programming languages, but even after I learned about sockets (from studying and using the REXX calls mentioned below) I pictured sockets as something exotic and complicated happening below my grasp, in the bowels of the OS; I needed (so I thought) an interface to connect to them. (This is why I mentioned assembler earlier.) Thus the value of the REXX functions for sockets; it enabled me to get to them. My assumption was therefore that if I'm trying to implement some socket communications on my PC, TSO-REXX wouldn't meet my need and I'd have to write in a different language -- VBSCript, say -- and for that would need a different set of function calls, designed not for REXX but for something else, either for VBS specifically or something more general that object-oriented languages could use. I guess you're saying below that socket calls are built into the C language, or more likely are part of a standard library of C functions. I once bought a C compiler, but was dismayed by the amount of code that has to go into every program just to get started. (I'm prejudiced by the simplicity of REXX and PL/1, and dislike all the verbiage that's necessary even to start a COBOL program.) So I dropped the matter and never got further. No doubt I'll get back to C eventually. Meanwhile, is there a OO class (for example) that can interact with object-oriented languages such as VBS, Jscript, ooREXX etc? Or is it time for me to buy a C compiler (again). Or maybe VB Studio, or whatever it's called? (I don't really care for VB as a language; I love it in one way because it's the language in which I first finally got what OO programming is about, but I recognize that there must be languages that do the same thing more easily. Is it time for me to acquire and learn Perl? Python? Ruby? Java?) --- Bob Bridges, robhbrid...@gmail.com, cell 336 382-7313 /* If you are ambushed, your survival depends entirely on the inadequacy of your attacker. -Damon Fay, law-enforcement officer and tae kwon do instructor */ -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Charles Mills Sent: Wednesday, January 5, 2022 12:13 Not sure I am exactly getting the question. In C at least, sockets are sockets are sockets. I did a whole lot of multi-platform C socket code and almost EXACTLY the same code will run Windows, Linux or legacy MVS. There is one additional call at startup that you need in Windows, and a few obscure functions are platform-dependent. But if you download a generic C sockets client/server demo program from the Web it will almost certainly run unmodified on Linux or MVS. I'm not trying to sell some language here; just relating the facts as I see them. Here for example is the documentation for the socket() function on MVS, Linux and Windows respectively: MVS: int socket(int *domain, int type, int protocol); The socket() function creates an endpoint for communication and returns a socket descriptor representing the endpoint. Linux: int socket(int domain, int type, int protocol); socket() creates an endpoint for communication and returns a file descriptor that refers to that endpoint. Windows: SOCKET WSAAPI socket( [in] int af, [in] int type, [in] int protocol ); The socket function creates a socket that is bound to a specific transport service provider. (Between you and me, "SOCKET WSAAPI" = int.) -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Bob Bridges Sent: Wednesday, January 5, 2022 8:19 AM That looks right, yes. I have a PDF copy in my library. However I don't think I ever saw it in this context; maybe I'll benefit by reading elsewhere in the "z/OS Communications Server" library, now that you've pointed me to it. If I do, I may find the answer to my question. But probably not; this is about z/OS. What I'm asking about is what calls exist to do the same sort of operations on other platforms than the mainframe and from other languages than REXX. -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Steve Horein Sent: Wednesday, January 5, 2022 06:53 I believe these are the socket functions Bob is referring to: https://www.ibm.com/docs/en/zos/2.5.0?topic=interface-runtime-functions --- On Wed, Jan 5, 2022 at 12:15 AM Itschak Mugzach < 00000305158ad67d-dmarc-requ...@listserv.ua.edu> wrote: > The function name is "HTTP/HTTPS protocol enabler". It supports > several languauges, including rexx and works great. > > --- On Wed, Jan 5, 2022 at 7:04 AM Bob Bridges <robhbrid...@gmail.com> wrote: > > Maybe not the best place to ask, but I've heard folks here mention > > writing interfaces using sockets. Now, someone sent me a manual on > > the socket functions that could be used with REXX, and I > > successfully wrote a client/server pair for use on the mainframe, > > just as a proof of concept for a project that in the end was never > > executed. I enjoyed the experience, and captivated by the possibilities. > > > > But it was a set of calls for use only with REXX. I hear other > > folks here talk about sockets, and I'm wondering what else there is > > that I can use on other platforms. Someday I'll learn assembler for > > Windows, but until I do, are there other tools available? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
