2 ashd - A Sane HTTP Daemon
3 Copyright (C) 2008 Fredrik Tolf <fredrik@dolda2000.com>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
28 #include <sys/socket.h>
35 static ssize_t mtread(void *cookie, void *buf, size_t len)
37 struct stdiofd *d = cookie;
42 ret = read(d->fd, buf, len);
43 if((ret < 0) && (errno == EAGAIN)) {
44 ev = block(d->fd, EV_READ, d->timeout);
46 /* If we just go on, we should get the real error. */
60 static ssize_t mtwrite(void *cookie, const void *buf, size_t len)
62 struct stdiofd *d = cookie;
68 ret = send(d->fd, buf, len, MSG_DONTWAIT | MSG_NOSIGNAL);
70 ret = write(d->fd, buf, len);
71 if((ret < 0) && (errno == EAGAIN)) {
72 ev = block(d->fd, EV_WRITE, d->timeout);
74 /* If we just go on, we should get the real error. */
86 static int mtclose(void *cookie)
88 struct stdiofd *d = cookie;
95 FILE *mtstdopen(int fd, int issock, int timeout, char *mode, struct stdiofd **infop)
101 if(!strcmp(mode, "r")) {
103 } else if(!strcmp(mode, "w")) {
105 } else if(!strcmp(mode, "r+")) {
113 d->timeout = timeout;
114 if(!(ret = funstdio(d, r?mtread:NULL, w?mtwrite:NULL, NULL, mtclose))) {
118 fcntl(fd, F_SETFL, fcntl(fd, F_GETFL) | O_NONBLOCK);
124 struct bufio *mtbioopen(int fd, int issock, int timeout, char *mode, struct stdiofd **infop)
126 static struct bufioops ops = {
127 .read = mtread, .write = mtwrite, .close = mtclose,
132 if(!strcmp(mode, "r")) {
133 } else if(!strcmp(mode, "w")) {
134 } else if(!strcmp(mode, "r+")) {
141 d->timeout = timeout;
142 if(!(ret = bioopen(d, &ops))) {
146 fcntl(fd, F_SETFL, fcntl(fd, F_GETFL) | O_NONBLOCK);
159 static void freepipe(struct pipe *p)
165 static ssize_t piperead(void *pdata, void *buf, size_t len)
167 struct pipe *p = pdata;
170 while(p->data.d == 0) {
181 ret = min(len, p->data.d);
182 memcpy(buf, p->data.b, ret);
183 memmove(p->data.b, p->data.b + ret, p->data.d -= ret);
189 static int piperclose(void *pdata)
191 struct pipe *p = pdata;
203 static ssize_t pipewrite(void *pdata, const void *buf, size_t len)
205 struct pipe *p = pdata;
212 while(p->data.d >= p->bufmax) {
225 ret = min(len, p->bufmax - p->data.d);
226 sizebuf(p->data, p->data.d + ret);
227 memcpy(p->data.b + p->data.d, buf, ret);
234 static int pipewclose(void *pdata)
236 struct pipe *p = pdata;
248 void mtiopipe(FILE **read, FILE **write)
254 *read = funstdio(p, piperead, NULL, NULL, piperclose);
255 *write = funstdio(p, NULL, pipewrite, NULL, pipewclose);