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- /*
- * vsprintf.c --
- *
- * Source code for the "vsprintf" library procedure.
- *
- * Copyright 1988 Regents of the University of California
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies. The University of California
- * makes no representations about the suitability of this
- * software for any purpose. It is provided "as is" without
- * express or implied warranty.
- */
-
- #ifndef lint
- static char rcsid[] = "$Header: /sprite/src/lib/c/stdio/RCS/vsprintf.c,v 1.2 89/05/18 17:15:51 rab Exp $ SPRITE (Berkeley)";
- #endif not lint
-
- #include <stdio.h>
- #include <varargs.h>
-
- /*
- * Forward references to procedure defined in this file:
- */
-
- static void WriteProc();
-
-
- /*
- *----------------------------------------------------------------------
- *
- * vsprintf --
- *
- * Format and print one or more values, placing the output into
- * a string. See the manual page for details of how the format
- * string is interpreted. This procedure is identical to sprintf
- * except that the arguments have been prepackaged using varargs.
- *
- * Results:
- * The return value is a pointer to string, which has been
- * overwritten with formatted information.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
- char *
- vsprintf(string, format, args)
- char *string; /* Where to place result. */
- char *format; /* How to format result. See man page
- * for details. */
- va_list args; /* Variable-length list of arguments,
- * assembled using the varargs macros. */
- {
- FILE stream;
-
- Stdio_Setup(&stream, 0, 1, (unsigned char *) string, 5000, (void (*)()) 0,
- WriteProc, (int (*)()) 0, (ClientData) 0);
- (void) vfprintf(&stream, format, args);
- putc(0, &stream);
- return string;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * WriteProc --
- *
- * This procedure is invoked when the "buffer" for the string
- * fills up. Just give the string more space.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The stream's "buffer" gets enlarged.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- WriteProc(stream)
- register FILE *stream;
- {
- stream->writeCount = 5000;
- }
-