52 	FILE *fp = cookie;  in __sread()  local
54 	return(_read(fp->pub._fileno, buf, (size_t)n));  in __sread()
60 	FILE *fp = cookie;  in __swrite()  local
62 	return (_write(fp->pub._fileno, buf, (size_t)n));  in __swrite()
68 	FILE *fp = cookie;  in __sseek()  local
70 	return (lseek(fp->pub._fileno, (off_t)offset, whence));  in __sseek()
84 _sread(FILE *fp, char *buf, int n)  in _sread()  argument
88 	ret = (*fp->_read)(fp->_cookie, buf, n);  in _sread()
90 		if (fp->pub._flags & __SOFF) {  in _sread()
91 			if (fp->_offset <= OFF_MAX - ret)  in _sread()
92 				fp->_offset += ret;  in _sread()
94 				fp->pub._flags &= ~__SOFF;  in _sread()
97 		fp->pub._flags &= ~__SOFF;  in _sread()
102 _swrite(FILE *fp, const char *buf, int n)  in _swrite()  argument
107 	if (fp->pub._flags & __SAPP) {  in _swrite()
109 		if (_sseek(fp, (fpos_t)0, SEEK_END) == -1 &&  in _swrite()
110 		    (fp->pub._flags & __SOPT))  in _swrite()
114 	ret = (*fp->_write)(fp->_cookie, buf, n);  in _swrite()
117 		if ((fp->pub._flags & (__SAPP|__SOFF)) == (__SAPP|__SOFF) &&  in _swrite()
118 		    fp->_offset <= OFF_MAX - ret)  in _swrite()
119 			fp->_offset += ret;  in _swrite()
121 			fp->pub._flags &= ~__SOFF;  in _swrite()
124 		fp->pub._flags &= ~__SOFF;  in _swrite()
129 _sseek(FILE *fp, fpos_t offset, int whence)  in _sseek()  argument
136 	ret = (*fp->_seek)(fp->_cookie, offset, whence);  in _sseek()
148 				if (HASUB(fp))  in _sseek()
149 					FREEUB(fp);  in _sseek()
150 				fp->pub._p = fp->_bf._base;  in _sseek()
151 				fp->pub._r = 0;  in _sseek()
152 				fp->pub._flags &= ~__SEOF;  in _sseek()
154 			fp->pub._flags |= __SERR;  in _sseek()
157 			fp->pub._flags &= ~__SAPP;  in _sseek()
158 		fp->pub._flags &= ~__SOFF;  in _sseek()
160 	} else if (fp->pub._flags & __SOPT) {  in _sseek()
161 		fp->pub._flags |= __SOFF;  in _sseek()
162 		fp->_offset = ret;  in _sseek()