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我知道，通过使用wget INSIDE我的C程序服务器，这是可能的。例如，我们必须wget facebook.com。然后一个名为index.html的文件将被下载到我的笔记本电脑上。之后，我们必须再次通过网络浏览器呼叫/facebook.com/index.html到网络服务器。任何想法如何做到这一点？我试图做到这一点，但这是错误的。C- HTTP Web服务器：如何缓存
int connection(int fd, int portnum) {
char request[500], resource[500], answer, *ptr;
int fd1, length,c1,c2;
if (recv_new(fd, request) == 0) {
printf("Receive Failed\n");
}
printf("%s\n", request);
// Check for a valid browser request
ptr = strstr(request, " HTTP/");
if (ptr == NULL) {
printf("NOT HTTP !\n");
} else {
*ptr = 0;
ptr = NULL;
if (strncmp(request, "GET ", 4) == 0) {
ptr = request + 4;
}
if (ptr == NULL) {
printf("Unknown Request ! \n");
} else {
if (ptr[strlen(ptr) - 1] == '/') {
strcat(ptr, "test.html");
}
char s1[100] = "facebook.com";
char s2[100] = "twitter.com";
c1 = strncmp(s1,ptr,100);
c2 = strncmp(s2,ptr,100);
if((c1==0)||(c2==0))
{
printf("ACCESS DENIED\n");
}
//how to compare strings
strcpy(resource, webroot());
strcat(resource, ptr);
char* s = strchr(ptr, '.');
int i;
for (i = 0; extensions[i].ext != NULL; i++) {
if (strcmp(s + 1, extensions[i].ext) == 0) {
fd1 = open(resource, O_RDONLY, 0);
printf("Opening \"%s\"\n", resource);
system("wget -E -H -k -K -p localhost:8888"); //lets assume that this is the default port number
printf("Do you want to reload your recent website?\n");
scanf(" %c", &answer);
if(answer=='Y'||answer=='y')
{
fd1 = open(resource, O_RDONLY, 0);
printf("Opening \"%s\"\n", resource);
}