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/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
*/
#include <stdarg.h>
#define import_spp
#define import_libc
#define import_xnames
#define import_stdio
#include <iraf.h>
#define SZ_OBUF SZ_COMMAND /* sz intermediate buffer */
/* SPRINTF -- Formatted print to a string. If char and XCHAR are the
** same size we open the output string as a file and write directly into
** it. Otherwise we must write into an intermediate buffer, then pack
** XCHAR into the char output string. This is not as bad as it sounds
** as the operation is negligible compared to the encoding operation.
*/
char *
sprintf (char *str, char *format, ...)
{
register XCHAR *ip;
register char *op;
XCHAR obuf[SZ_OBUF], *fiobuf;
XINT x_fd, x_maxch = SZ_OBUF, x_mode = NEW_FILE;
va_list argp;
va_start (argp, format);
/* Select output buffer. */
if (sizeof (XCHAR) == sizeof (char))
fiobuf = (XCHAR *)str;
else
fiobuf = obuf;
/* Make it the file buffer. Call FIO to open the string as a file.
*/
x_fd = STROPEN (fiobuf, &x_maxch, &x_mode);
/* Format the data into obuf. */
vfprintf (FDTOFP(x_fd), format, argp);
/* FIO does not write the EOS until the string file is closed.
* Move obuf to str if it is not already there.
*/
CLOSE (&x_fd);
if (fiobuf == obuf)
for (ip=obuf, op=str; (*op++ = *ip++) != EOS; )
;
va_end (argp);
return (str);
}
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