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#define _BSD_SOURCE
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/ip.h>
#include "../picohttp.h"
#define SENDBUF_LEN 256
struct bufbsdsockData {
char * recvbuf;
size_t recvbuf_len;
size_t recvbuf_pos;
char sendbuf[SENDBUF_LEN];
size_t sendbuf_pos;
int fd;
};
int bufbsdsock_read(size_t count, char *buf, void *data_)
{
struct bufbsdsockData *data = data_;
ssize_t rb = 0;
ssize_t r = 0;
do {
size_t len = 0;
if( !data->recvbuf ||
data->recvbuf_pos >= data->recvbuf_len ) {
if( data->recvbuf )
free( data->recvbuf );
data->recvbuf_len = 0;
data->recvbuf_pos = 0;
int avail = 0;
do {
struct pollfd pfd = {
.fd = data->fd,
.events = POLLIN | POLLPRI,
.revents = 0
};
int const pret = poll(&pfd, 1, -1);
if( 0 >= pret ) {
return -1;
}
assert(pfd.revents & (POLLIN | POLLPRI));
if( -1 == ioctl(fd, FIONREAD, &avail) ) {
perror("ioctl(FIONREAD)");
return -1;
}
} while( !avail );
data->recvbuf = malloc( avail);
int r;
while( 0 > (r = read(data->fd, data->recvbuf, avail)) )
if( EINTR == errno )
continue;
if( EAGAIN == errno ||
EWOULDBLOCK == errno ) {
usleep(200);
continue;
}
return -1;
}
data->recvbuf_len += r;
}
len = data->recvbuf_len - data->recvbuf_pos;
if( len > count )
len = count;
rb += len;
} while( rb < count );
return rb;
}
int bufbsdsock_write(size_t count, char const *buf, void *data)
{
int fd = *((int*)data);
ssize_t wb = 0;
ssize_t w = 0;
do {
} while( wb < count );
return wb;
}
int16_t bufbsdsock_getch(void *data)
{
char ch;
if( 1 != bufbsdsock_read(1, &ch, data) )
return -1;
return ch;
}
int bufbsdsock_putch(char ch, void *data)
{
return bufbsdsock_write(1, &ch, data);
}
int bufbsdsock_flush(void *data)
{
return 0;
}
int bsdsock_flush(void* data)
{
return 0;
}
int sockfd = -1;
void bye(void)
{
fputs("exiting\n", stderr);
int const one = 1;
/* allows for immediate reuse of address:port
* after program termination */
setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one));
shutdown(sockfd, SHUT_RDWR);
close(sockfd);
}
void rhRoot(struct picohttpRequest *req)
{
fprintf(stderr, "handling request /%s\n", req->urltail);
req->response.contenttype = "text/html";
char http_test[] = "<html><head><title>handling request /</title></head>\n<body><a href=\"/test\">/test</a></body></html>\n";
picohttpResponseWrite(req, sizeof(http_test)-1, http_test);
}
void rhTest(struct picohttpRequest *req)
{
fprintf(stderr, "handling request /test%s\n", req->urltail);
char http_test[] = "handling request /test";
picohttpResponseWrite(req, sizeof(http_test)-1, http_test);
if(req->urltail) {
picohttpResponseWrite(req, strlen(req->urltail), req->urltail);
}
}
static uint8_t const favicon_ico[] = {
0x00,0x00,0x01,0x00,0x01,0x00,0x10,0x10,0x10,0x00,0x01,0x00,0x04,0x00,0x28,0x01,
0x00,0x00,0x16,0x00,0x00,0x00,0x28,0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x20,0x00,
0x00,0x00,0x01,0x00,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x09,
0x06,0x00,0x21,0x23,0x22,0x00,0x48,0x4a,0x48,0x00,0x70,0x73,0x71,0x00,0x8d,0x90,
0x8e,0x00,0xb4,0xb7,0xb5,0x00,0xd8,0xdc,0xda,0x00,0xfc,0xff,0xfd,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x77,0x77,
0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x76,0x06,0x76,0x06,0x77,0x77,0x77,
0x77,0x74,0x04,0x74,0x04,0x77,0x77,0x77,0x77,0x72,0x42,0x72,0x42,0x77,0x77,0x77,
0x77,0x71,0x70,0x70,0x71,0x77,0x70,0x77,0x77,0x52,0x72,0x32,0x72,0x57,0x70,0x77,
0x77,0x34,0x74,0x04,0x74,0x37,0x70,0x77,0x77,0x16,0x76,0x06,0x76,0x17,0x70,0x40,
0x03,0x77,0x77,0x77,0x77,0x77,0x70,0x26,0x62,0x37,0x77,0x77,0x77,0x77,0x70,0x67,
0x76,0x17,0x77,0x77,0x77,0x77,0x70,0x77,0x77,0x07,0x77,0x77,0x77,0x77,0x70,0x67,
0x76,0x17,0x77,0x77,0x77,0x77,0x70,0x26,0x62,0x37,0x77,0x77,0x77,0x77,0x70,0x40,
0x03,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
void rhFavicon(struct picohttpRequest *req)
{
fprintf(stderr, "handling request /favicon.ico\n");
req->response.contenttype = "image/x-icon";
req->response.contentlength = sizeof(favicon_ico);
picohttpResponseWrite(req, sizeof(favicon_ico), favicon_ico);
}
int main(int argc, char *argv[])
{
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if( -1 == sockfd ) {
perror("socket");
return -1;
}
#if 0
if( atexit(bye) ) {
return -1;
}
#endif
struct sockaddr_in addr = {
.sin_family = AF_INET,
.sin_port = htons(8000),
.sin_addr = 0
};
int const one = 1;
setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one));
if( -1 == bind(sockfd, (struct sockaddr*)&addr, sizeof(addr)) ) {
perror("bind");
return -1;
}
if( -1 == listen(sockfd, 2) ) {
perror("listen");
return -1;
}
for(;;) {
socklen_t addrlen = 0;
int confd = accept(sockfd, (struct sockaddr*)&addr, &addrlen);
if( -1 == confd ) {
if( EAGAIN == errno ||
EWOULDBLOCK == errno ) {
usleep(1000);
continue;
} else {
perror("accept");
return -1;
}
}
struct picohttpIoOps ioops = {
.read = bsdsock_read,
.write = bsdsock_write,
.getch = bsdsock_getch,
.putch = bsdsock_putch,
.flush = bsdsock_flush,
.data = &confd
};
struct picohttpURLRoute routes[] = {
{"/favicon.ico|", 0, rhFavicon, 0, PICOHTTP_METHOD_GET},
{ "/test", 0, rhTest, 16, PICOHTTP_METHOD_GET },
{ "/|", 0, rhRoot, 0, PICOHTTP_METHOD_GET },
{ NULL, 0, 0, 0, 0 }
};
picohttpProcessRequest(&ioops, routes);
shutdown(confd, SHUT_RDWR);
close(confd);
}
return 0;
}
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