int minisize(struct stat mystat, int ct, int ct2)
{
if (S_ISBLK(mystat.st_mode) || S_ISCHR(mystat.st_mode))
{
ct2 = intsize(major(mystat.st_rdev)) +
intsize(minor(mystat.st_rdev)) + 2;
if (ct <= ct2)
ct = ct2;
}
else if (ct <= intsize(mystat.st_size))
ct = intsize(mystat.st_size);
return (ct);
}
int sizemaj(char **tab, char *dir)
{
int ct;
int i;
char *buf;
struct stat mystat;
i = 0;
ct = 0;
while (tab[i])
{
buf = ft_strjoin(dir, tab[i]);
if (lstat(buf, &mystat) == 0)
{
if (ct <= intsize(major(mystat.st_rdev))
&& (S_ISBLK(mystat.st_mode) || S_ISCHR(mystat.st_mode)))
ct = intsize(major(mystat.st_rdev));
}
i++;
}
free(buf);
return (ct);
}
//processes data and updates the log
void processandlog(int sock, char * ipadd, int portnum)
{
struct stat checkfile;
int getstat = 0;
int fd = 0;
int sendfail = 0;
int filesize = 0;
int sendreturn = 0;
char requestedfile [1024] = "";
int fail = 0;
int getreq = getrequest(sock, requestedfile, 1024);
if (!getreq) {
if (requestedfile[0] == '/')
{
getstat = stat(&(requestedfile[1]), &checkfile);
}
else {
getstat = stat(requestedfile, &checkfile);
}
if (!getstat) {
filesize = checkfile.st_size;
int datasize = 63 + intsize(filesize) + filesize;
char data [datasize];
sprintf(data, HTTP_200, (int)checkfile.st_size);
if (requestedfile[0] == '/')
{
fd = open(&(requestedfile[1]), O_RDONLY);
}
else {
fd = open(requestedfile, O_RDONLY);
}
read(fd, &(data[(63 + intsize(filesize))]), checkfile.st_size);
data[datasize] = '\0';
sendreturn = senddata(sock, data, datasize);
if (sendreturn == -1)
{
printf("%s", "Data sending failed! So sad");
sendfail = 1;
}
shutdown(sock, SHUT_RDWR);
close(fd);
}
else {
fail = 1;
}
}
else {
fail = 1; //getrequest fails means that we won't ever find the file, return file not found
}
if(fail){
sendreturn = senddata(sock, HTTP_404, strlen(HTTP_404));
if (sendreturn == -1)
{
printf("%s", "Data sending failed! So sad");
sendfail = 1;
}
shutdown(sock, SHUT_RDWR);
}
if(!sendfail)
{
pthread_mutex_lock(&log_mutex);
FILE * log = fopen("weblog.txt", "a");
fwrite(ipadd, strlen(ipadd), 1, log);
char portstr[intsize(portnum)];
sprintf(portstr, ":%d ", portnum);
fwrite(portstr, strlen(portstr), 1, log);
time_t now = time(NULL);
char * time = ctime(&now);
fwrite(time, strlen(time)-1, 1, log);
fwrite(" \"GET " , 6, 1, log);
fwrite(requestedfile, strlen(requestedfile), 1, log);
if(fail){
fwrite("\" 404 ", 6, 1, log);
}
else {
fwrite("\" 200 ", 6, 1, log);
}
char buffer[intsize(sendreturn)];
sprintf(buffer, "%d\n", sendreturn);
fwrite(buffer, strlen(buffer), 1, log);
fclose(log);
pthread_mutex_unlock(&log_mutex);
}
else
{ //since we want to write to log for every request, it makes sense to keep track of senddata failures
pthread_mutex_lock(&log_mutex);
FILE * log = fopen("weblog.txt", "a");
fwrite("Senddata failed\n", 16, 1, log);
fclose(log);
pthread_mutex_unlock(&log_mutex);
}
}
newfunc ()
{
char n[NAMESIZE], *ptr;
fexitlab = getlabel();
if (!symname (n) ) {
error ("illegal function or declaration");
kill ();
return;
}
if (ptr = findglb (n)) {
if (ptr[IDENT] != FUNCTION)
multidef (n);
else if (ptr[OFFSET] == FUNCTION)
multidef (n);
else
ptr[OFFSET] = FUNCTION;
} else
addglb (n, FUNCTION, CINT, FUNCTION, PUBLIC);
prologue ();
if (!match ("("))
error ("missing open paren");
prefix ();
outstr (n);
col ();
nl ();
locptr = STARTLOC;
argstk = 0;
while (!match (")")) {
if (symname (n)) {
if (findloc (n))
multidef (n);
else {
addloc (n, 0, 0, argstk, AUTO);
argstk = argstk + intsize();
}
} else {
error ("illegal argument name");
junk ();
}
blanks ();
if (!streq (line + lptr, ")")) {
if (!match (","))
error ("expected comma");
}
if (endst ())
break;
}
stkp = 0;
argtop = argstk;
while (argstk) {
if (amatch ("register", 8)) {
if (amatch("char", 4))
getarg(CCHAR);
else if (amatch ("int", 3))
getarg(CINT);
else
getarg(CINT);
ns();
} else if (amatch ("char", 4)) {
getarg (CCHAR);
ns ();
} else if (amatch ("int", 3)) {
getarg (CINT);
ns ();
} else {
error ("wrong number args");
break;
}
}
statement(YES);
printlabel(fexitlab);
col();
nl();
modstk (0);
gret ();
stkp = 0;
locptr = STARTLOC;
}
