X-Git-Url: https://uglyman.kremlin.cc/gitweb/gitweb.cgi?p=systembsd.git;a=blobdiff_plain;f=src%2Finterfaces%2Fhostnamed%2Fhostnamed.c;h=81200e73a92ab0fec3958c80f883e7fbe79cfc7b;hp=ec7156f1bab6502e72d8e71b140ebf231e358872;hb=5ea060f8c0faa96f70bbdda34a3862c208fb3fc0;hpb=057ab9c2481d5ade30273e1069357b7c839e184c diff --git a/src/interfaces/hostnamed/hostnamed.c b/src/interfaces/hostnamed/hostnamed.c index ec7156f..81200e7 100644 --- a/src/interfaces/hostnamed/hostnamed.c +++ b/src/interfaces/hostnamed/hostnamed.c @@ -110,6 +110,9 @@ const gchar *server_archs[] = { "sparc64" }; +static const gchar *DEFAULT_DOMAIN = ".home.network"; +static const gchar *OS_HOSTNAME_PATH = "/etc/myname"; + /* --- begin method/property/dbus signal code --- */ /* TODO free some strings here */ @@ -196,11 +199,12 @@ on_handle_set_static_hostname(Hostname1 *hn1_passed_interf, gpointer data) { GVariant *params; - gchar *proposed_static_hostname, *valid_static_hostname_buf; + gchar *proposed_static_hostname, *valid_static_hostname_buf, *bsd_hostname_try; const gchar *bus_name; gboolean policykit_auth, ret, try_to_set; size_t check_length; check_auth_result is_authed; + proposed_static_hostname = NULL; ret = try_to_set = FALSE; @@ -258,6 +262,17 @@ on_handle_set_static_hostname(Hostname1 *hn1_passed_interf, g_strdelimit(STATIC_HOSTNAME, " ", '-'); hostname1_set_static_hostname(hn1_passed_interf, STATIC_HOSTNAME); g_ptr_array_add(hostnamed_freeable, valid_static_hostname_buf); + + /* set string in OS_HOSTNAME_PATH ("/etc/myname" on bsd) */ + bsd_hostname_try = get_bsd_hostname(STATIC_HOSTNAME); + GError *debug_error; + if(!bsd_hostname_try || !g_file_set_contents(OS_HOSTNAME_PATH, bsd_hostname_try, -1, &debug_error)) + g_printf("failed to write to %s! are you root?\n", OS_HOSTNAME_PATH); + + if(bsd_hostname_try) + g_free(bsd_hostname_try); + + /* call sethostname(3) too */ ret = (!sethostname(valid_static_hostname_buf, MAXHOSTNAMELEN)) ? TRUE : FALSE; /* TODO set /etc/myname, guarantee domain or substitue .home.network" */ hostname1_complete_set_static_hostname(hn1_passed_interf, invoc); } @@ -343,7 +358,7 @@ on_handle_set_pretty_hostname(Hostname1 *hn1_passed_interf, g_key_file_set_string(config, "hostnamed", "PRETTY_HOSTNAME", valid_pretty_hostname_buf); - if((computed_static_hostname = g_hostname_to_ascii(PRETTY_HOSTNAME))) { + /* if((computed_static_hostname = g_hostname_to_ascii(PRETTY_HOSTNAME))) { g_strdelimit(computed_static_hostname, " ", '-'); hostname1_set_static_hostname(hn1_passed_interf, computed_static_hostname); @@ -351,10 +366,8 @@ on_handle_set_pretty_hostname(Hostname1 *hn1_passed_interf, g_ptr_array_add(hostnamed_freeable, computed_static_hostname); g_key_file_set_string(config, "hostnamed", "StaticHostname", computed_static_hostname); - } else - g_free(computed_static_hostname); + } */ } - } } @@ -747,6 +760,8 @@ int main() { /* TODO: check for valid, writable config at init. if no, complain to `make install` */ + get_bsd_hostname("adsf"); /* TODO KILL ME */ + CHASSIS = ICON = OS_CPENAME = 0; KERN_NAME = KERN_RELEASE = KERN_VERS = 0; HOSTNAME = STATIC_HOSTNAME = PRETTY_HOSTNAME = NULL; @@ -814,18 +829,18 @@ gboolean set_names() { else PRETTY_HOSTNAME = ""; - if(config) - g_key_file_unref(config); + + /* (4) set STATIC_HOSTNAME */ + if((static_hostname_buf = g_key_file_get_value(config, "hostnamed", "STATIC_HOSTNAME", NULL))) + STATIC_HOSTNAME = static_hostname_buf; - /* (4) set STATIC_HOSTNAME */ - if(!g_strcmp0(PRETTY_HOSTNAME, "")) - STATIC_HOSTNAME = HOSTNAME; + else + STATIC_HOSTNAME = ""; - else if((static_hostname_buf = g_hostname_to_ascii(PRETTY_HOSTNAME))) - STATIC_HOSTNAME = static_hostname_buf; + if(config) + g_key_file_unref(config); return (HOSTNAME && STATIC_HOSTNAME && PRETTY_HOSTNAME) ? TRUE : FALSE; - } gboolean set_uname_properties() { @@ -1024,4 +1039,101 @@ static gboolean is_valid_chassis_type(gchar *test) { return TRUE; return FALSE; -} +} + +/* returns a proper, bsd-style FQDN hostname safe to write to /etc/myname + * if proposed_hostname does not contain an appended domain, the one in /etc/myname is substituted. + * failing that, DEFAULT_DOMAIN is used. NULL if proposed_hostname is invalid + * returns string that should be g_free()'d, or NULL if passed an invalid hostname */ +static gchar *get_bsd_hostname(gchar *proposed_hostname) { + + gchar *bsd_hostname, *ascii_translated_hostname, **myname_contents, *passed_domain, *temp_buf; + size_t domain_len, check_len; + gboolean read_result; + + g_strdelimit(proposed_hostname, "`~!@#$%^&*()_=+[{]}|:;'\"\\", '-'); + + ascii_translated_hostname = g_hostname_to_ascii(proposed_hostname); + check_len = strnlen(ascii_translated_hostname, MAXHOSTNAMELEN); + + if(!ascii_translated_hostname || !check_len || check_len > MAXHOSTNAMELEN || !g_strcmp0("", ascii_translated_hostname) || !g_strcmp0(".", ascii_translated_hostname)) { + + bsd_hostname = NULL; + passed_domain = NULL; + myname_contents = NULL; + + } else if((passed_domain = has_domain(ascii_translated_hostname))) { + + bsd_hostname = (gchar *) g_malloc0(MAXHOSTNAMELEN); + g_strlcpy(bsd_hostname, ascii_translated_hostname, MAXHOSTNAMELEN); + + passed_domain = NULL; + myname_contents = NULL; + + } else { + + myname_contents = (gchar **) g_malloc0(MAXHOSTNAMELEN * 2); + read_result = g_file_get_contents(OS_HOSTNAME_PATH, myname_contents, NULL, NULL); + + if(read_result && (passed_domain = has_domain(myname_contents[0]))) { + + domain_len = strnlen(passed_domain, MAXHOSTNAMELEN); + + if((domain_len + check_len) > MAXHOSTNAMELEN) + bsd_hostname = NULL; + else + bsd_hostname = g_strconcat(ascii_translated_hostname, passed_domain, NULL); + + } else if(myname_contents[0]) { + + g_printf("%s does not contain a proper FQDN! this is a significant error on BSD machines, otherwise OK.\nfalling back to default domain, '%s'\n", OS_HOSTNAME_PATH, DEFAULT_DOMAIN); + + domain_len = strnlen(DEFAULT_DOMAIN, MAXHOSTNAMELEN); + + if((domain_len + check_len) > MAXHOSTNAMELEN) + bsd_hostname = NULL; + else + bsd_hostname = g_strconcat(ascii_translated_hostname, DEFAULT_DOMAIN, NULL); + + } else { + + g_printf("could not read hostname at %s, this is a major error\n", OS_HOSTNAME_PATH); + bsd_hostname = NULL; + passed_domain = (gchar *) g_malloc0(MAXHOSTNAMELEN); + } + } + + if(passed_domain) + g_free(passed_domain); + if(myname_contents) + g_free(myname_contents); + + if(bsd_hostname && !strchr(bsd_hostname, '\n')) { + + temp_buf = bsd_hostname; + bsd_hostname = g_strconcat(bsd_hostname, "\n", NULL); + g_free(temp_buf); + } + + return bsd_hostname; +} + +/* returns NULL if no domain, otherwise append-appropriate domain string you must g_free() + * i.e. has_domain("foo.bar.com") returns ".bar.com" + * only pass g_hostname_to_ascii'd strings */ +static gchar *has_domain(const gchar *test) { + + size_t hostname_len, full_len; + gchar *ret; + + hostname_len = strcspn(test, "."); + full_len = strnlen(test, MAXHOSTNAMELEN); + + if(full_len == hostname_len) + return NULL; + + ret = (gchar *) g_malloc0(MAXHOSTNAMELEN); + g_strlcpy(ret, &test[hostname_len], MAXHOSTNAMELEN); + + return ret; +}