40 lflush(FILE *fp)  in lflush()  argument
42 	if ((fp->_flags & (__SLBF|__SWR)) == (__SLBF|__SWR))  in lflush()
43 		return (__sflush_locked(fp));	/* ignored... */  in lflush()
52 __srefill(FILE *fp)  in __srefill()  argument
54 	fp->_r = 0;		/* largely a convenience for callers */  in __srefill()
58 	if (fp->_flags & __SEOF)  in __srefill()
63 	if ((fp->_flags & __SRD) == 0) {  in __srefill()
64 		if ((fp->_flags & __SRW) == 0) {  in __srefill()
66 			fp->_flags |= __SERR;  in __srefill()
70 		if (fp->_flags & __SWR) {  in __srefill()
71 			if (__sflush(fp))  in __srefill()
73 			fp->_flags &= ~__SWR;  in __srefill()
74 			fp->_w = 0;  in __srefill()
75 			fp->_lbfsize = 0;  in __srefill()
77 		fp->_flags |= __SRD;  in __srefill()
85 		if (HASUB(fp)) {  in __srefill()
86 			FREEUB(fp);  in __srefill()
87 			if ((fp->_r = fp->_ur) != 0) {  in __srefill()
88 				fp->_p = fp->_up;  in __srefill()
94 	if (fp->_bf._base == NULL)  in __srefill()
95 		__smakebuf(fp);  in __srefill()
102 	if (fp->_flags & (__SLBF|__SNBF)) {  in __srefill()
104 		fp->_flags |= __SIGN;  in __srefill()
106 		fp->_flags &= ~__SIGN;  in __srefill()
109 		if ((fp->_flags & (__SLBF|__SWR)) == (__SLBF|__SWR))  in __srefill()
110 			__sflush(fp);  in __srefill()
112 	fp->_p = fp->_bf._base;  in __srefill()
113 	fp->_r = (*fp->_read)(fp->_cookie, (char *)fp->_p, fp->_bf._size);  in __srefill()
114 	fp->_flags &= ~__SMOD;	/* buffer contents are again pristine */  in __srefill()
115 	if (fp->_r <= 0) {  in __srefill()
116 		if (fp->_r == 0)  in __srefill()
117 			fp->_flags |= __SEOF;  in __srefill()
119 			fp->_r = 0;  in __srefill()
120 			fp->_flags |= __SERR;  in __srefill()