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/*
*** uWSGI cgi client ***
to compile:
gcc -Wall -o uwsgi_client.cgi uwsgi_dynamic_client.c
*/
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <stdlib.h>
#define UWSGI_SOCK "/tmp/uwsgi.sock"
#define UWSGI_SCRIPT "myapp_wsgi"
int main() {
extern char **environ;
char *env;
struct sockaddr_un s_addr;
int uwsgi_socket;
int res, cnt;
char *place_holder;
unsigned short len;
char message[4096];
char *mptr;
memset(&s_addr, 0, sizeof(struct sockaddr_un));
s_addr.sun_family = AF_UNIX;
strcpy(s_addr.sun_path, UWSGI_SOCK);
uwsgi_socket = socket(AF_UNIX, SOCK_STREAM, 0);
if (uwsgi_socket < 0) {
perror("socket()");
exit(1);
}
if (connect(uwsgi_socket, (struct sockaddr *) &s_addr, strlen(UWSGI_SOCK) + ( (void *)&s_addr.sun_path - (void *)&s_addr) ) != 0) {
perror("connect()");
exit(1);
}
memset(message, 0, 4096);
mptr = message+4;
if (setenv("UWSGI_SCRIPT", UWSGI_SCRIPT, 1) != 0) {
perror("setenv()");
exit(1);
}
if (**environ) {
while( (env = *environ) ) {
place_holder = strchr(env,'=');
// key
len = place_holder-env;
memcpy(mptr, &len, 2);
mptr+=2;
memcpy(mptr, env, len);
mptr+=len;
// value
len = (unsigned short) (env+strlen(env) - (place_holder+1));
memcpy(mptr, &len, 2);
mptr+=2;
memcpy(mptr, place_holder+1, len);
mptr+= len;
*environ++;
}
}
message[0] = 0;
len = (mptr-message)-4;
memcpy(message+1, &len, 2);
message[3] = 0;
res = send(uwsgi_socket, message, mptr-message, 0);
while( (cnt = read(0, message, 4096)) ) {
send(uwsgi_socket, message, cnt, 0);
}
if (res == mptr-message) {
while( (res = recv(uwsgi_socket, message, 4096,0)) ) {
write(1, message, res);
}
}
return 0;
}
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