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/* Weeb --- Web microframework for GNU Guile
* Copyright © 2026 Jakob Kreuze <zerodaysfordays@sdf.org>
*
* This file is part of Weeb.
*
* Weeb is free software: you can redistribute it and/or modify it
* under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* Weeb is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General
* Public License for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with Weeb. If not, see <https://www.gnu.org/licenses/>. */
// gcc $(pkg-config --cflags guile-3.0) -fPIC -shared -o gfcgi.so $(pkg-config --libs guile-3.0) -lfcgi src/fcgi.c
#include "libguile/foreign.h"
#include "libguile/gc.h"
#include "libguile/strings.h"
#include <libguile.h>
#include <fcgi_stdio.h>
SCM FCGI_Accept_wrapper(void) { return scm_from_int(FCGI_Accept()); }
SCM FCGI_fwrite_wrapper(SCM x) {
char *output = scm_to_utf8_string(x);
int result = printf("%s", output);
fflush(stdout);
return scm_from_int(result);
}
SCM FCGI_fread_wrapper(void) {
size_t capacity = 1024;
size_t size = 0;
char *buffer = scm_gc_malloc_pointerless(capacity, "buffer");
if (!buffer) {
return NULL;
}
for (;;) {
size_t remaining = capacity - size;
size_t n = fread(buffer + size, 1, remaining, stdin);
if (n == 0)
break;
size += n;
if (size == capacity) {
capacity *= 2;
char *tmp = scm_gc_realloc(buffer, size, capacity, "buffer");
if (!tmp) {
free(buffer);
return NULL;
}
buffer = tmp;
} else {
break;
}
}
SCM result = scm_from_pointer(buffer, NULL);
SCM length = scm_from_size_t(size);
SCM offset = scm_from_size_t(0);
SCM u8_type = scm_from_utf8_symbol("u8");
return scm_pointer_to_bytevector(result, length, offset, u8_type);
}
void init_libfcgi(void) {
scm_c_define_gsubr("fcgi-accept", 0, 0, 0, FCGI_Accept_wrapper);
scm_c_define_gsubr("fcgi-display", 1, 0, 0, FCGI_fwrite_wrapper);
scm_c_define_gsubr("fcgi-read", 0, 0, 0, FCGI_fread_wrapper);
}
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