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mc/vfs/utilvfs.c
Pavel Roskin 3c7cc35025 * ftpfs.c: Check for existance of arpa/inet.h when using it. 
* mcfs.c: Likewise.
* mcserv.c: Likewise.
* tcputil.c: Likewise.
* utilvfs.c: Likewise.
2002-09-06 01:02:25 +00:00

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/* Utilities for VFS modules.
Currently includes login and tcp open socket routines.
Copyright (C) 1995, 1996 Miguel de Icaza
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License
as published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
This program 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Namespace: exports vfs_split_url */
#ifndef test_get_host_and_username
#include <config.h>
#endif
#include <unistd.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <signal.h>
#include <string.h>
#include <pwd.h>
#include <sys/types.h>
#include <netdb.h>
#include <sys/socket.h>
#include <netinet/in.h>
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#include <errno.h>
#include "utilvfs.h"
#include "vfs.h"
/* Extract the hostname and username from the path */
/* path is in the form: [user@]hostname:port/remote-dir, e.g.:
*
* ftp://sunsite.unc.edu/pub/linux
* ftp://miguel@sphinx.nuclecu.unam.mx/c/nc
* ftp://tsx-11.mit.edu:8192/
* ftp://joe@foo.edu:11321/private
* ftp://joe:password@foo.se
*
* Returns malloc()ed host, user and pass they are present.
* If the user is empty, e.g. ftp://@roxanne/private, and URL_ALLOW_ANON
* is not set, then the current login name is supplied.
*
* Return value is a malloc()ed string with the pathname relative to the
* host.
*/
char *vfs_split_url (const char *path, char **host, char **user,
int *port, char **pass, int default_port, int flags)
{
struct passwd *passwd_info;
char *dir, *colon, *inner_colon, *at, *rest;
char *retval;
char *pcopy = g_strdup (path);
char *pend = pcopy + strlen (pcopy);
if (pass)
*pass = NULL;
*port = default_port;
*user = NULL;
retval = NULL;
dir = pcopy;
if (!(flags & URL_NOSLASH)) {
/* locate path component */
while (*dir != PATH_SEP && *dir)
dir++;
if (*dir){
retval = g_strdup (dir);
*dir = 0;
} else
retval = g_strdup (PATH_SEP_STR);
}
/* search for any possible user */
at = strchr (pcopy, '@');
/* We have a username */
if (at){
*at = 0;
inner_colon = strchr (pcopy, ':');
if (inner_colon) {
*inner_colon = 0;
inner_colon++;
if (pass)
*pass = g_strdup (inner_colon);
}
if (*pcopy != 0)
*user = g_strdup (pcopy);
if (pend == at+1)
rest = at;
else
rest = at + 1;
} else
rest = pcopy;
if (!*user && !(flags & URL_ALLOW_ANON)) {
passwd_info = getpwuid (geteuid ());
if (passwd_info && passwd_info->pw_name)
*user = g_strdup (passwd_info->pw_name);
else {
/* This is very unlikely to happen */
*user = g_strdup ("anonymous");
}
endpwent ();
}
/* Check if the host comes with a port spec, if so, chop it */
colon = strchr (rest, ':');
if (colon){
*colon = 0;
if (sscanf(colon+1, "%d", port)==1) {
if (*port <= 0 || *port >= 65536)
*port = default_port;
} else {
while(*(++colon)){
switch(*colon) {
case 'C': *port = 1;
break;
case 'r': *port = 2;
break;
}
}
}
}
if (host)
*host = g_strdup (rest);
g_free (pcopy);
return retval;
}
#ifdef test_get_host_and_username
struct tt {
char *url;
char *r_host;
char *r_user;
char *r_pass;
char *r_dir;
int r_port;
};
struct tt tests [] = {
{ "host", "host", "anonymous", NULL, "/", 21 },
{ "host/dir", "host", "anonymous", NULL, "/dir", 21 },
{ "host:40/", "host", "anonymous", NULL, "/", 40 },
{ "host:40/dir", "host", "anonymous", NULL, "/dir", 40 },
{ "user@host", "host", "user", NULL, "/", 21 },
{ "user@host/dir", "host", "user", NULL, "/dir", 21 },
{ "user@host:40/", "host", "user", NULL, "/", 40 },
{ "user@host:40/dir", "host", "user", NULL, "/dir", 40 },
{ "user:pass@host", "host", "user", "pass", "/", 21 },
{ "user:pass@host/dir", "host", "user", "pass", "/dir", 21 },
{ "user:pass@host:40", "host", "user", "pass", "/", 40 },
{ "user:pass@host:40/dir", "host", "user", "pass", "/dir", 40 },
{ "host/a@b", "host", "anonymous", NULL, "/a@b", 21 },
{ "host:40/a@b", "host", "anonymous", NULL, "/a@b", 40 },
{ "user@host/a@b", "host", "user", NULL, "/a@b", 21 },
{ "user@host:40/a@b", "host", "user", NULL, "/a@b", 40 },
{ "user:pass@host/a@b", "host", "user", "pass", "/a@b", 21 },
{ "user:pass@host:40/a@b", "host", "user", "pass", "/a@b", 40 },
{ "host/a:b", "host", "anonymous", NULL, "/a:b", 21 },
{ "host:40/a:b", "host", "anonymous", NULL, "/a:b", 40 },
{ "user@host/a:b", "host", "user", NULL, "/a:b", 21 },
{ "user@host:40/a:b", "host", "user", NULL, "/a:b", 40 },
{ "user:pass@host/a:b", "host", "user", "pass", "/a:b", 21 },
{ "user:pass@host:40/a:b", "host", "user", "pass", "/a:b", 40 },
{ "host/a/b", "host", "anonymous", NULL, "/a/b", 21 },
{ "host:40/a/b", "host", "anonymous", NULL, "/a/b", 40 },
{ "user@host/a/b", "host", "user", NULL, "/a/b", 21 },
{ "user@host:40/a/b", "host", "user", NULL, "/a/b", 40 },
{ "user:pass@host/a/b", "host", "user", "pass", "/a/b", 21 },
{ "user:pass@host:40/a/b", "host", "user", "pass", "/a/b", 40 },
{ NULL }
};
/* tests with implicit login name */
struct tt tests2 [] = {
{ "@host", "host", "user", NULL, "/", 21 },
{ "@host/dir", "host", "user", NULL, "/dir", 21 },
{ "@host:40/", "host", "user", NULL, "/", 40 },
{ "@host:40/dir", "host", "user", NULL, "/dir", 40 },
{ ":pass@host", "host", "user", "pass", "/", 21 },
{ ":pass@host/dir", "host", "user", "pass", "/dir", 21 },
{ ":pass@host:40", "host", "user", "pass", "/", 40 },
{ ":pass@host:40/dir", "host", "user", "pass", "/dir", 40 },
{ "@host/a@b", "host", "user", NULL, "/a@b", 21 },
{ "@host:40/a@b", "host", "user", NULL, "/a@b", 40 },
{ ":pass@host/a@b", "host", "user", "pass", "/a@b", 21 },
{ ":pass@host:40/a@b", "host", "user", "pass", "/a@b", 40 },
{ "@host/a:b", "host", "user", NULL, "/a:b", 21 },
{ "@host:40/a:b", "host", "user", NULL, "/a:b", 40 },
{ ":pass@host/a:b", "host", "user", "pass", "/a:b", 21 },
{ ":pass@host:40/a:b", "host", "user", "pass", "/a:b", 40 },
{ "@host/a/b", "host", "user", NULL, "/a/b", 21 },
{ "@host:40/a/b", "host", "user", NULL, "/a/b", 40 },
{ ":pass@host/a/b", "host", "user", "pass", "/a/b", 21 },
{ ":pass@host:40/a/b", "host", "user", "pass", "/a/b", 40 },
{ NULL }
};
main ()
{
int i, port, err;
char *dir, *host, *user, *pass;
struct passwd *passwd_info;
char *current;
if ((passwd_info = getpwuid (geteuid ())) == NULL)
current = g_strdup ("anonymous");
else {
current= g_strdup (passwd_info->pw_name);
}
endpwent ();
for (i = 0; tests [i].url; i++){
err = 0;
dir = get_host_and_username (tests [i].url, &host, &user, &port, 21, 1, &pass);
if (strcmp (dir, tests [i].r_dir))
err++, printf ("dir: test %d flunked\n", i);
if (!err && strcmp (host, tests [i].r_host))
err++, printf ("host: test %d flunked\n", i);
if (!err && strcmp (user, tests [i].r_user))
err++, printf ("user: test %d flunked\n", i);
if (!err && tests [i].r_pass)
if (strcmp (dir, tests [i].r_dir))
err++, printf ("pass: test %d flunked\n", i);
if (!err & tests [i].r_port != port)
err++, printf ("port: test %d flunked\n", i);
if (err){
printf ("host=[%s] user=[%s] pass=[%s] port=[%d]\n",
host, user, pass, port);
}
}
printf ("%d tests ok\nExtra tests:", i);
for (i = 0; i < 4; i++){
dir = get_host_and_username (tests [i].url, &host, &user, &port, 21, 0, &pass);
if (strcmp (user, current))
printf ("ntest: flunked %d\n", i);
}
printf ("%d tests ok\nTests with implicit login name\n", i);
for (i = 0; tests2 [i].url; i++){
err = 0;
dir = get_host_and_username (tests2 [i].url, &host, &user, &port, 21, 1, &pass);
if (strcmp (dir, tests2 [i].r_dir))
err++, printf ("dir: test %d flunked\n", i);
if (!err && strcmp (host, tests2 [i].r_host))
err++, printf ("host: test %d flunked\n", i);
if (!err && strcmp (user, current))
err++, printf ("user: test %d flunked\n", i);
if (!err && tests2 [i].r_pass)
if (strcmp (dir, tests2 [i].r_dir))
err++, printf ("pass: test %d flunked\n", i);
if (!err & tests2 [i].r_port != port)
err++, printf ("port: test %d flunked\n", i);
if (err){
printf ("host=[%s] user=[%s] pass=[%s] port=[%d]\n",
host, user, pass, port);
}
}
printf ("%d tests ok\n", i);
}
#endif
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