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Annotation of coherent/b/lib/libc/XSTDIO/_stropen.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * libc/stdio/_stropen.c
        !             3:  * ANSI-compliant C standard i/o library internals.
        !             4:  * _stropen()
        !             5:  * Open string stream.
        !             6:  * Called by sprintf(), sscanf(), vsprintf().
        !             7:  */
        !             8: 
        !             9: #include <stdio.h>
        !            10: #include <limits.h>
        !            11: 
        !            12: extern int     _fputstr();
        !            13: 
        !            14: /* length is -1 for output to string, strlen(string) for input from string. */
        !            15: FILE *
        !            16: _stropen(string, length, fp) char *string; int length; register FILE *fp;
        !            17: {
        !            18:        register _FILE2 *f2p;
        !            19: 
        !            20:        f2p = fp->_f2p;
        !            21:        f2p->_bp = fp->_cp = string;
        !            22:        fp->_mode = _MODE_STR;
        !            23:        if (length < 0) {
        !            24:                fp->_ff1 |= _FWONLY;
        !            25:                fp->_cc = INT_MAX;
        !            26:                f2p->_pt = &_fputstr;
        !            27:                f2p->_gt = &_fgete;
        !            28:        } else {
        !            29:                fp->_ff1 |= _FRONLY;
        !            30:                fp->_cc = length;
        !            31:                f2p->_pt = &_fpute;
        !            32:                f2p->_gt = &_fgetstr;
        !            33:        }
        !            34:        return fp;
        !            35: }
        !            36: 
        !            37: /*
        !            38:  * _fputstr() is static;
        !            39:  * _fgetstr() (in _fgetstr.c) is not, because it must be visible to ungetc().
        !            40:  */
        !            41: static
        !            42: int
        !            43: _fputstr(c, fp) int c; register FILE *fp;
        !            44: {
        !            45:        return (*fp->_cp++ = (unsigned char)c);
        !            46: }
        !            47: 
        !            48: /* end of libc/stdio/_stropen.c */

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