70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
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/*
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FUNCTION
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<<siprintf>>---write formatted output (integer only)
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INDEX
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siprintf
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ANSI_SYNOPSIS
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#include <stdio.h>
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int siprintf(char *<[str]>, const char *<[format]> [, <[arg]>, ...]);
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DESCRIPTION
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<<siprintf>> is a restricted version of <<sprintf>>: it has the same
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arguments and behavior, save that it cannot perform any floating-point
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formatting: the <<f>>, <<g>>, <<G>>, <<e>>, and <<F>> type specifiers
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are not recognized.
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RETURNS
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<<siprintf>> returns the number of bytes in the output string,
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save that the concluding <<NULL>> is not counted.
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<<siprintf>> returns when the end of the format string is
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encountered.
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PORTABILITY
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<<siprintf>> is not required by ANSI C.
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Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
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<<lseek>>, <<read>>, <<sbrk>>, <<write>>.
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*/
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#include <stdio.h>
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#ifdef _HAVE_STDC
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#include <stdarg.h>
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#else
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#include <varargs.h>
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#endif
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#include <limits.h>
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#include <_ansi.h>
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#include <reent.h>
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#include "local.h"
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int
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#ifdef _HAVE_STDC
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_DEFUN (siprintf, (str, fmt), char *str _AND _CONST char *fmt _DOTS)
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#else
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siprintf (str, fmt, va_alist)
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char *str;
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_CONST char *fmt;
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va_dcl
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#endif
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{
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int ret;
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va_list ap;
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FILE f;
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f._flags = __SWR | __SSTR;
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f._bf._base = f._p = (unsigned char *) str;
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f._bf._size = f._w = INT_MAX;
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#ifdef _HAVE_STDC
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va_start (ap, fmt);
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#else
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va_start (ap);
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#endif
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ret = vfiprintf (&f, fmt, ap);
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va_end (ap);
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*f._p = 0;
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return (ret);
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}
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