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. Moved pkgname, copyright to top of file to avoid having to duplicate 

it in the comments.
. Got rid of DEFAULT_* defines in favour of initializers.
. Moved existing socket creation code to init_sockin().
. Added usage(). [needs work]
. Added parse_commandline() skeleton. [needs a lot of work]
This commit is contained in:
Emil Mikulic 2003-02-20 07:01:34 +00:00
parent 26aeb38a81
commit 79e52dfae2
1 changed files with 80 additions and 22 deletions
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102
trunk/darkhttpd.c
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@ -1,6 +1,9 @@
/* +----------------------------------------------------------------------- *\
| */ static const char pkgname[] = "darkhttpd/0.1"; /*
| */ static const char copyright[] = "copyright (c) 2003 Emil Mikulic"; /*
+----------------------------------------------------------------------- */
/*
* darkhttpd
* copyright (c) 2003 Emil Mikulic.
* $Id$
*/
@ -8,28 +11,27 @@
#include <sys/socket.h>
#include <netinet/in.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
/*
* Defaults - these can be overridden by various command-line arguments.
* Run `darkhttpd --help' for help.
*/
#define DEFAULT_PORT 80
#define DEFAULT_BINDADDR INADDR_ANY
#define DEFAULT_MAXCONN -1 /* kern.ipc.somaxconn */
/*@unused@*/
static const char server_version[] = "darkhttpd/0.1";
/* defaults can be overridden on the command-line */
static u_int32_t bindaddr = INADDR_ANY;
static u_int16_t bindport = 80;
static int max_connections = -1; /* kern.ipc.somaxconn */
static int sockin;
/*@null@*/
static char *wwwroot = NULL;
/*int main(int argc, char *argv[])*/
int main()
/* ---------------------------------------------------------------------------
* Initialize the sockin global. This is the socket that we accept
* connections from.
*/
static void init_sockin(void)
{
struct sockaddr_in addrin;
int sockopt;
@ -46,19 +48,75 @@ int main()
/* bind socket */
addrin.sin_family = (u_char)PF_INET;
addrin.sin_port = htons(DEFAULT_PORT);
addrin.sin_addr.s_addr = DEFAULT_BINDADDR;
addrin.sin_port = htons(bindport);
addrin.sin_addr.s_addr = bindaddr;
memset(&(addrin.sin_zero), 0, 8);
if (bind(sockin, (struct sockaddr *)&addrin,
sizeof(struct sockaddr)) == -1)
err(1, "bind()");
err(1, "bind(port %u)", bindport);
/* listen on socket */
if (listen(sockin, DEFAULT_MAXCONN) == -1)
if (listen(sockin, max_connections) == -1)
err(1, "listen()");
}
/* --- do stuff here --- */
/* ---------------------------------------------------------------------------
* Prints a usage statement.
*/
static void usage(void)
{
printf("\n usage: darkhttpd /path/to/wwwroot [options]\n\n"
"options:\n"
"\t--port number (default: %u)\n" /* DEFAULT_PORT */
"\t\tSpecifies which port to listen on for connections.\n"
"\n"
"\t--bind ip (default: all)\n"
"\t\tIf multiple interfaces are present,\n"
"\t\tspecifies which one to bind the listening port to.\n"
"\n"
"\t--maxconn number (default: system maximum)\n"
"\t\tSpecifies how many concurrent connections to accept.\n"
"\n"
"\t--log filename (default: no logging)\n"
"\t\tSpecifies which file to log requests to.\n"
"\n"
"\t--chroot (default: don't chroot)\n"
"\t\tLocks server into wwwroot directory for added security.\n"
"\n"
"\t--uid blah, --gid blah\n" /* FIXME */
, bindport);
exit(EXIT_FAILURE);
}
/* ---------------------------------------------------------------------------
* Parses commandline options.
*/
static void parse_commandline(const int argc, char *argv[])
{
int i;
if (argc < 2) usage(); /* no wwwroot given */
wwwroot = argv[1];
/* walk through the remainder of the arguments (if any) */
for (i=2; i<argc; i++)
{
/* FIXME */
errx(1, "unknown argument `%s'", argv[i]);
}
}
int main(int argc, char *argv[])
{
printf("%s, %s.\n", pkgname, copyright);
parse_commandline(argc, argv);
init_sockin();
(void) close(sockin);
return 0;
}