51 	FILE *fp = cookie;  in __sread()  local
53 	return(_read(fp->_file, buf, (size_t)n));  in __sread()
59 	FILE *fp = cookie;  in __swrite()  local
61 	return (_write(fp->_file, buf, (size_t)n));  in __swrite()
67 	FILE *fp = cookie;  in __sseek()  local
69 	return (lseek(fp->_file, (off_t)offset, whence));  in __sseek()
83 _sread(FILE *fp, char *buf, int n)  in _sread()  argument
87 	ret = (*fp->_read)(fp->_cookie, buf, n);  in _sread()
89 		if (fp->_flags & __SOFF) {  in _sread()
90 			if (fp->_offset <= OFF_MAX - ret)  in _sread()
91 				fp->_offset += ret;  in _sread()
93 				fp->_flags &= ~__SOFF;  in _sread()
96 		fp->_flags &= ~__SOFF;  in _sread()
101 _swrite(FILE *fp, char const *buf, int n)  in _swrite()  argument
106 	if (fp->_flags & __SAPP) {  in _swrite()
108 		if (_sseek(fp, (fpos_t)0, SEEK_END) == -1 &&  in _swrite()
109 		    (fp->_flags & __SOPT))  in _swrite()
113 	ret = (*fp->_write)(fp->_cookie, buf, n);  in _swrite()
116 		if ((fp->_flags & __SOFF) && !(fp->_flags2 & __S2OAP) &&  in _swrite()
117 		    fp->_offset <= OFF_MAX - ret)  in _swrite()
118 			fp->_offset += ret;  in _swrite()
120 			fp->_flags &= ~__SOFF;  in _swrite()
123 		fp->_flags &= ~__SOFF;  in _swrite()
128 _sseek(FILE *fp, fpos_t offset, int whence)  in _sseek()  argument
135 	ret = (*fp->_seek)(fp->_cookie, offset, whence);  in _sseek()
147 				if (HASUB(fp))  in _sseek()
148 					FREEUB(fp);  in _sseek()
149 				fp->_p = fp->_bf._base;  in _sseek()
150 				fp->_r = 0;  in _sseek()
151 				fp->_flags &= ~__SEOF;  in _sseek()
153 			fp->_flags |= __SERR;  in _sseek()
156 			fp->_flags &= ~__SAPP;  in _sseek()
157 		fp->_flags &= ~__SOFF;  in _sseek()
159 	} else if (fp->_flags & __SOPT) {  in _sseek()
160 		fp->_flags |= __SOFF;  in _sseek()
161 		fp->_offset = ret;  in _sseek()