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Diffstat (limited to 'networking/udhcp/common.c')
| -rw-r--r-- | networking/udhcp/common.c | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/networking/udhcp/common.c b/networking/udhcp/common.c deleted file mode 100644 index bf2ac4417..000000000 --- a/networking/udhcp/common.c +++ /dev/null @@ -1,162 +0,0 @@ -/* common.c - * - * Functions for debugging and logging as well as some other - * simple helper functions. - * - * Russ Dill <Russ.Dill@asu.edu> 2001-2003 - * Rewritten by Vladimir Oleynik <dzo@simtreas.ru> (C) 2003 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <fcntl.h> -#include <unistd.h> -#include <errno.h> -#include <string.h> -#include <stdlib.h> -#include <signal.h> -#include <paths.h> -#include <sys/socket.h> -#include <stdarg.h> - -#include "common.h" -#include "pidfile.h" - - -static int daemonized; - -long uptime(void) -{ - struct sysinfo info; - sysinfo(&info); - return info.uptime; -} - - -/* - * This function makes sure our first socket calls - * aren't going to fd 1 (printf badness...) and are - * not later closed by daemon() - */ -static inline void sanitize_fds(void) -{ - int zero; - if ((zero = open(_PATH_DEVNULL, O_RDWR, 0)) < 0) return; - while (zero < 3) zero = dup(zero); - close(zero); -} - - -void background(const char *pidfile) -{ -#ifdef __uClinux__ - LOG(LOG_ERR, "Cannot background in uclinux (yet)"); -#else /* __uClinux__ */ - int pid_fd; - - /* hold lock during fork. */ - pid_fd = pidfile_acquire(pidfile); - if (daemon(0, 0) == -1) { - perror("fork"); - exit(1); - } - daemonized++; - pidfile_write_release(pid_fd); -#endif /* __uClinux__ */ -} - - -#ifdef UDHCP_SYSLOG -void udhcp_logging(int level, const char *fmt, ...) -{ - va_list p; - va_list p2; - - va_start(p, fmt); - __va_copy(p2, p); - if(!daemonized) { - vprintf(fmt, p); - putchar('\n'); - } - vsyslog(level, fmt, p2); - va_end(p); -} - - -void start_log_and_pid(const char *client_server, const char *pidfile) -{ - int pid_fd; - - /* Make sure our syslog fd isn't overwritten */ - sanitize_fds(); - - /* do some other misc startup stuff while we are here to save bytes */ - pid_fd = pidfile_acquire(pidfile); - pidfile_write_release(pid_fd); - - /* equivelent of doing a fflush after every \n */ - setlinebuf(stdout); - - openlog(client_server, LOG_PID | LOG_CONS, LOG_LOCAL0); - udhcp_logging(LOG_INFO, "%s (v%s) started", client_server, VERSION); -} - - -#else - - -static char *syslog_level_msg[] = { - [LOG_EMERG] = "EMERGENCY!", - [LOG_ALERT] = "ALERT!", - [LOG_CRIT] = "critical!", - [LOG_WARNING] = "warning", - [LOG_ERR] = "error", - [LOG_INFO] = "info", - [LOG_DEBUG] = "debug" -}; - - -void udhcp_logging(int level, const char *fmt, ...) -{ - va_list p; - - va_start(p, fmt); - if(!daemonized) { - printf("%s, ", syslog_level_msg[level]); - vprintf(fmt, p); - putchar('\n'); - } - va_end(p); -} - - -void start_log_and_pid(const char *client_server, const char *pidfile) -{ - int pid_fd; - - /* Make sure our syslog fd isn't overwritten */ - sanitize_fds(); - - /* do some other misc startup stuff while we are here to save bytes */ - pid_fd = pidfile_acquire(pidfile); - pidfile_write_release(pid_fd); - - /* equivelent of doing a fflush after every \n */ - setlinebuf(stdout); - - udhcp_logging(LOG_INFO, "%s (v%s) started", client_server, VERSION); -} -#endif - |