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#include "libphysfs-serve.h"
#include <physfs.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <poll.h>
#include <err.h>
#ifndef SERVE_INIT
# define SERVE_INIT 0
#endif
static char*
strrchr_safe(const char *s, int c) {
char *ret = strrchr(s, c);
return (ret ? ret : (char*)s + strlen(s));
}
static void
dirname(char *path) {
char *ret;
if (!(ret = strrchr(path, '/'))) {
*path = 0;
return;
}
*ret = 0;
}
const bool
find_file(const char *root, const char *file, char res_buf[], size_t res_buf_sz) {
char **rc;
if (!(rc = PHYSFS_enumerateFiles(root)))
return false;
for (char **i = rc; *i != NULL; ++i) {
char fullpath[1024];
snprintf(fullpath, sizeof(fullpath), "%s/%s", root, *i);
struct PHYSFS_Stat st = {0};
PHYSFS_stat(fullpath, &st);
if (st.filetype == PHYSFS_FILETYPE_DIRECTORY) {
if (find_file(fullpath, file, res_buf, res_buf_sz)) {
PHYSFS_freeList(rc);
return true;
}
} else {
if (strcmp(file, *i)) continue;
snprintf(res_buf, res_buf_sz, "%s", fullpath);
PHYSFS_freeList(rc);
return true;
}
}
PHYSFS_freeList(rc);
return false;
}
struct args {
const char *path[32];
unsigned int npaths;
unsigned int port;
const char *addr;
};
bool
parse_arg(char *argv[], int argc, struct args *args) {
if (*argv[0] != '-') {
args->path[args->npaths++] = argv[0];
} else {
const char *next = (argc > 1 ? argv[1] : "");
for (const char *s = argv[0] + 1; *s; ++s) {
switch (*s) {
case 'i': args->addr = next; return true;
case 'p': args->port = strtoul(next, NULL, 10); return true;
}
}
}
return false;
}
int
main(int argc, char *argv[]) {
if (argc < 2)
errx(EXIT_FAILURE, "usage: [-i addr] [-p port] archive ...");
struct args args = { .addr = "0.0.0.0", .port = 1337 };
for (int i = 1; i < argc; ++i)
i += parse_arg(&argv[i], argc - i, &args);
if (!PHYSFS_init(argv[0]))
errx(EXIT_FAILURE, "PHYSFS_init failed");
for (unsigned int i = 0; i < args.npaths; ++i) {
if (!PHYSFS_mount(args.path[i], NULL, 0))
errx(EXIT_FAILURE, "failed to mount archive: %s", args.path[i]);
if (i == 0) {
char root[1024];
if (!find_file("", "index.html", root, sizeof(root)))
errx(EXIT_FAILURE, "no index.html found in the root archive");
dirname(root);
PHYSFS_setRoot(args.path[i], root);
}
}
while (1) {
struct physfs_serve serve = { SERVE_INIT };
if (!physfs_serve_init(&serve, args.port, args.addr))
errx(EXIT_FAILURE, "couldn't listen");
while (1) {
struct pollfd pfd[ARRAY_SIZE(serve.fd)];
for (int i = 0; i < ARRAY_SIZE(serve.fd); ++i)
pfd[i] = (struct pollfd){ .fd = serve.fd[i], .events = POLLIN };
poll(pfd, serve.nfds, -1);
for (int i = 0; i < serve.nfds; ++i)
if (pfd[i].revents & POLLIN && !physfs_serve_event(&serve, i))
break;
}
physfs_serve_free(&serve);
}
PHYSFS_deinit();
return EXIT_SUCCESS;
}
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