Cross Reference: /src/lib/libc/stdio/ungetc.c

Lines Matching refs:fp
53  * Expand the ungetc buffer `in place'.  That is, adjust fp->_p when
59 __submore(FILE *fp)
64 	_DIAGASSERT(fp != NULL);
66 	if (_UB(fp)._base == fp->_ubuf) {
72 		_UB(fp)._base = p;
73 		_UB(fp)._size = BUFSIZ;
74 		p += BUFSIZ - sizeof(fp->_ubuf);
75 		for (i = sizeof(fp->_ubuf); --i >= 0;)
76 			p[i] = fp->_ubuf[i];
77 		fp->_p = p;
80 	i = _UB(fp)._size;
81 	p = realloc(_UB(fp)._base, (size_t)(i << 1));
86 	fp->_p = p + i;
87 	_UB(fp)._base = p;
88 	_UB(fp)._size = i << 1;
93 ungetc(int c, FILE *fp)
96 	_DIAGASSERT(fp != NULL);
102 	FLOCKFILE(fp);
103 	_SET_ORIENTATION(fp, -1);
104 	if ((fp->_flags & __SRD) == 0) {
109 		if ((fp->_flags & __SRW) == 0) {
110 			FUNLOCKFILE(fp);
113 		if (fp->_flags & __SWR) {
114 			if (__sflush(fp)) {
115 				FUNLOCKFILE(fp);
118 			fp->_flags &= ~__SWR;
119 			fp->_w = 0;
120 			fp->_lbfsize = 0;
122 		fp->_flags |= __SRD;
130 	if (HASUB(fp)) {
131 		if (fp->_r >= _UB(fp)._size && __submore(fp)) {
132 			FUNLOCKFILE(fp);
135 		*--fp->_p = c;
136 		fp->_r++;
137 		FUNLOCKFILE(fp);
140 	fp->_flags &= ~__SEOF;
147 	if (fp->_bf._base != NULL && fp->_p > fp->_bf._base &&
148 	    fp->_p[-1] == c) {
149 		fp->_p--;
150 		fp->_r++;
151 		FUNLOCKFILE(fp);
159 	fp->_ur = fp->_r;
160 	fp->_up = fp->_p;
161 	_UB(fp)._base = fp->_ubuf;
162 	_UB(fp)._size = sizeof(fp->_ubuf);
163 	fp->_ubuf[sizeof(fp->_ubuf) - 1] = c;
164 	fp->_p = &fp->_ubuf[sizeof(fp->_ubuf) - 1];
165 	fp->_r = 1;
166 	FUNLOCKFILE(fp);
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