static const char * fcgi_pass_fd(struct fcgi_context *fc, int *fdp, FCGI_FILE *ffp, char *buf, size_t bufsize)
{
ssize_t nread;
char *p = buf;
unsigned char cclass, next_state;
nread = read(*fdp, buf, bufsize);
if (nread > 0) {
while (p < buf + nread) {
if (*p == '\r') {
cclass = CC_CR;
} else if (*p == '\n') {
cclass = CC_LF;
} else {
cclass = CC_NORMAL;
}
next_state = header_state_machine[fc->reply_state][cclass];
fc->reply_state = next_state & ~ACTION_MASK;
switch(next_state & ACTION_MASK) {
case ACTION_ERROR:
return "parsing CGI reply";
case ACTION_END:
goto out_of_loop;
case ACTION_SKIP:
goto next_char;
case ACTION_EXTRA_CR:
if (FCGI_fputc('\r', ffp) == EOF) return "writing CGI reply";
break;
case ACTION_EXTRA_LF:
if (FCGI_fputc('\n', ffp) == EOF) return "writing CGI reply";
break;
}
if (FCGI_fputc(*p, ffp) == EOF) {
return "writing CGI reply";
}
next_char:
p++;
}
out_of_loop:
if (p < buf + nread) {
if (FCGI_fwrite(p, 1, buf + nread - p, ffp) != (size_t)(buf + nread - p)) {
return "writing CGI reply";
}
}
} else {
if (nread < 0) {
return "reading CGI reply";
}
close(*fdp);
*fdp = -1;
}
return NULL;
}
static void error_403(const char *reason, const char *filename)
{
FCGI_fputs("Status: 403 Forbidden\nContent-type: text/plain\n\n403", FCGI_stdout);
if (filename) {
FCGI_fprintf(FCGI_stderr, "%s (%s)\n", reason, filename);
} else {
FCGI_fputs(reason, FCGI_stderr);
FCGI_fputc('\n', FCGI_stderr);
}
exit(99);
}
int FCGI_putchar(int c)
{
return FCGI_fputc(c, FCGI_stdout);
}
