diff options
Diffstat (limited to 'src/shared/hostname-setup.c')
| -rw-r--r-- | src/shared/hostname-setup.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/src/shared/hostname-setup.c b/src/shared/hostname-setup.c deleted file mode 100644 index 550d3c2113..0000000000 --- a/src/shared/hostname-setup.c +++ /dev/null @@ -1,187 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2010 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <unistd.h> -#include <stdio.h> -#include <errno.h> -#include <string.h> -#include <stdlib.h> - -#include "hostname-setup.h" -#include "macro.h" -#include "util.h" -#include "log.h" - -#if defined(TARGET_FEDORA) || defined(TARGET_ALTLINUX) || defined(TARGET_MANDRIVA) || defined(TARGET_MEEGO) || defined(TARGET_MAGEIA) -#define FILENAME "/etc/sysconfig/network" -#elif defined(TARGET_SUSE) || defined(TARGET_SLACKWARE) -#define FILENAME "/etc/HOSTNAME" -#elif defined(TARGET_ARCH) -#define FILENAME "/etc/rc.conf" -#elif defined(TARGET_GENTOO) -#define FILENAME "/etc/conf.d/hostname" -#endif - -static int read_and_strip_hostname(const char *path, char **hn) { - char *s; - int r; - - assert(path); - assert(hn); - - if ((r = read_one_line_file(path, &s)) < 0) - return r; - - hostname_cleanup(s); - - if (isempty(s)) { - free(s); - return -ENOENT; - } - - *hn = s; - - return 0; -} - -static int read_distro_hostname(char **hn) { - -#if defined(TARGET_FEDORA) || defined(TARGET_ARCH) || defined(TARGET_GENTOO) || defined(TARGET_ALTLINUX) || defined(TARGET_MANDRIVA) || defined(TARGET_MEEGO) || defined(TARGET_MAGEIA) - int r; - FILE *f; - - assert(hn); - - if (!(f = fopen(FILENAME, "re"))) - return -errno; - - for (;;) { - char line[LINE_MAX]; - char *s, *k; - - if (!fgets(line, sizeof(line), f)) { - if (feof(f)) - break; - - r = -errno; - goto finish; - } - - s = strstrip(line); - - if (!startswith_no_case(s, "HOSTNAME=")) - continue; - - if (!(k = strdup(s+9))) { - r = -ENOMEM; - goto finish; - } - - hostname_cleanup(k); - - if (isempty(k)) { - free(k); - r = -ENOENT; - goto finish; - } - - *hn = k; - r = 0; - goto finish; - } - - r = -ENOENT; - -finish: - fclose(f); - return r; - -#elif defined(TARGET_SUSE) || defined(TARGET_SLACKWARE) - return read_and_strip_hostname(FILENAME, hn); -#else - return -ENOENT; -#endif -} - -static int read_hostname(char **hn) { - int r; - - assert(hn); - - /* First, try to load the generic hostname configuration file, - * that we support on all distributions */ - - if ((r = read_and_strip_hostname("/etc/hostname", hn)) < 0) { - - if (r == -ENOENT) - return read_distro_hostname(hn); - - return r; - } - - return 0; -} - -int hostname_setup(void) { - int r; - char *b = NULL; - const char *hn = NULL; - - if ((r = read_hostname(&b)) < 0) { - if (r == -ENOENT) - log_info("No hostname configured."); - else - log_warning("Failed to read configured hostname: %s", strerror(-r)); - - hn = NULL; - } else - hn = b; - - if (!hn) { - /* Don't override the hostname if it is unset and not - * explicitly configured */ - - char *old_hostname = NULL; - - if ((old_hostname = gethostname_malloc())) { - bool already_set; - - already_set = old_hostname[0] != 0; - free(old_hostname); - - if (already_set) - goto finish; - } - - hn = "localhost"; - } - - if (sethostname(hn, strlen(hn)) < 0) { - log_warning("Failed to set hostname to <%s>: %m", hn); - r = -errno; - } else - log_info("Set hostname to <%s>.", hn); - -finish: - free(b); - - return r; -} |