47 __submore(FILE *fp)  in __submore()  argument
52 	if (_UB(fp)._base == fp->_ubuf) {  in __submore()
58 		_UB(fp)._base = p;  in __submore()
59 		_UB(fp)._size = BUFSIZ;  in __submore()
60 		p += BUFSIZ - sizeof(fp->_ubuf);  in __submore()
61 		for (i = sizeof(fp->_ubuf); --i >= 0;)  in __submore()
62 			p[i] = fp->_ubuf[i];  in __submore()
63 		fp->_p = p;  in __submore()
66 	i = _UB(fp)._size;  in __submore()
67 	p = realloc(_UB(fp)._base, i << 1);  in __submore()
72 	fp->_p = p + i;  in __submore()
73 	_UB(fp)._base = p;  in __submore()
74 	_UB(fp)._size = i << 1;  in __submore()
79 ungetc(int c, FILE *fp)  in ungetc()  argument
85 	FLOCKFILE(fp);  in ungetc()
86 	_SET_ORIENTATION(fp, -1);  in ungetc()
87 	if ((fp->_flags & __SRD) == 0) {  in ungetc()
92 		if ((fp->_flags & __SRW) == 0) {  in ungetc()
93 error:			FUNLOCKFILE(fp);  in ungetc()
96 		if (fp->_flags & __SWR) {  in ungetc()
97 			if (__sflush(fp))  in ungetc()
99 			fp->_flags &= ~__SWR;  in ungetc()
100 			fp->_w = 0;  in ungetc()
101 			fp->_lbfsize = 0;  in ungetc()
103 		fp->_flags |= __SRD;  in ungetc()
111 	if (HASUB(fp)) {  in ungetc()
112 		if (fp->_r >= _UB(fp)._size && __submore(fp))  in ungetc()
114 		*--fp->_p = c;  in ungetc()
115 inc_ret:	fp->_r++;  in ungetc()
116 		FUNLOCKFILE(fp);  in ungetc()
119 	fp->_flags &= ~__SEOF;  in ungetc()
126 	if (fp->_bf._base != NULL && fp->_p > fp->_bf._base &&  in ungetc()
127 	    fp->_p[-1] == c) {  in ungetc()
128 		fp->_p--;  in ungetc()
136 	fp->_ur = fp->_r;  in ungetc()
137 	fp->_up = fp->_p;  in ungetc()
138 	_UB(fp)._base = fp->_ubuf;  in ungetc()
139 	_UB(fp)._size = sizeof(fp->_ubuf);  in ungetc()
140 	fp->_ubuf[sizeof(fp->_ubuf) - 1] = c;  in ungetc()
141 	fp->_p = &fp->_ubuf[sizeof(fp->_ubuf) - 1];  in ungetc()
142 	fp->_r = 1;  in ungetc()
143 	FUNLOCKFILE(fp);  in ungetc()