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-
- /*
- * SYSTEM.C Dynamically check whether we are running under 1.3 or 1.4
- *
- * (c)Copyright 1992-1997 Obvious Implementations Corp. Redistribution and
- * use is allowed under the terms of the DICE-LICENSE FILE,
- * DICE-LICENSE.TXT.
- */
-
- #include <exec/types.h>
- #include <exec/libraries.h>
- #include <stdlib.h>
-
- #ifdef INCLUDE_VERSION /* doesn't exist in 1.3 */
- #include <dos/dostags.h>
- #include <clib/dos_protos.h>
- #endif
-
- extern struct DosLibrary *DOSBase;
-
- system(buf)
- const char *buf;
- {
- int r;
-
- if (buf == NULL)
- return(1);
-
- #ifdef INCLUDE_VERSION
- if (DOSBase->dl_lib.lib_Version >= 36) {
- struct TagItem TI[] = {
- SYS_Input , Input(),
- SYS_Output, Output(),
- _SystemBoolTag, _SystemBoolTagValue,
- TAG_DONE, 0
- };
- r = System(buf, TI);
- } else
- #endif
- {
- r = Execute(buf, NULL, NULL);
- if (r == 0)
- r = -1;
- else if (r == -1)
- r = 0;
- }
- return(r);
- }
-
-