*
* Connection Manager
*
- * Copyright (C) 2007-2008 Intel Corporation. All rights reserved.
+ * Copyright (C) 2007-2012 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
#include <config.h>
#endif
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <unistd.h>
#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
#include <syslog.h>
+#include <execinfo.h>
+#include <dlfcn.h>
#include "connman.h"
-static volatile gboolean debug_enabled = FALSE;
+static const char *program_exec;
+static const char *program_path;
+/**
+ * connman_info:
+ * @format: format string
+ * @Varargs: list of arguments
+ *
+ * Output general information
+ */
void connman_info(const char *format, ...)
{
va_list ap;
va_end(ap);
}
+/**
+ * connman_warn:
+ * @format: format string
+ * @Varargs: list of arguments
+ *
+ * Output warning messages
+ */
+void connman_warn(const char *format, ...)
+{
+ va_list ap;
+
+ va_start(ap, format);
+
+ vsyslog(LOG_WARNING, format, ap);
+
+ va_end(ap);
+}
+
+/**
+ * connman_error:
+ * @format: format string
+ * @varargs: list of arguments
+ *
+ * Output error messages
+ */
void connman_error(const char *format, ...)
{
va_list ap;
va_end(ap);
}
+/**
+ * connman_debug:
+ * @format: format string
+ * @varargs: list of arguments
+ *
+ * Output debug message
+ */
void connman_debug(const char *format, ...)
{
va_list ap;
- if (debug_enabled == FALSE)
- return;
-
va_start(ap, format);
vsyslog(LOG_DEBUG, format, ap);
va_end(ap);
}
-int __connman_log_init(gboolean detach, gboolean debug)
+static void print_backtrace(unsigned int offset)
{
+ void *frames[99];
+ size_t n_ptrs;
+ unsigned int i;
+ int outfd[2], infd[2];
+ int pathlen;
+ pid_t pid;
+
+ if (program_exec == NULL)
+ return;
+
+ pathlen = strlen(program_path);
+
+ n_ptrs = backtrace(frames, G_N_ELEMENTS(frames));
+ if (n_ptrs < offset)
+ return;
+
+ if (pipe(outfd) < 0)
+ return;
+
+ if (pipe(infd) < 0) {
+ close(outfd[0]);
+ close(outfd[1]);
+ return;
+ }
+
+ pid = fork();
+ if (pid < 0) {
+ close(outfd[0]);
+ close(outfd[1]);
+ close(infd[0]);
+ close(infd[1]);
+ return;
+ }
+
+ if (pid == 0) {
+ close(outfd[1]);
+ close(infd[0]);
+
+ dup2(outfd[0], STDIN_FILENO);
+ dup2(infd[1], STDOUT_FILENO);
+
+ execlp("addr2line", "-C", "-f", "-e", program_exec, NULL);
+
+ exit(EXIT_FAILURE);
+ }
+
+ close(outfd[0]);
+ close(infd[1]);
+
+ connman_error("++++++++ backtrace ++++++++");
+
+ for (i = offset; i < n_ptrs - 1; i++) {
+ Dl_info info;
+ char addr[20], buf[PATH_MAX * 2];
+ int len, written;
+ char *ptr, *pos;
+
+ dladdr(frames[i], &info);
+
+ len = snprintf(addr, sizeof(addr), "%p\n", frames[i]);
+ if (len < 0)
+ break;
+
+ written = write(outfd[1], addr, len);
+ if (written < 0)
+ break;
+
+ len = read(infd[0], buf, sizeof(buf));
+ if (len < 0)
+ break;
+
+ buf[len] = '\0';
+
+ pos = strchr(buf, '\n');
+ *pos++ = '\0';
+
+ if (strcmp(buf, "??") == 0) {
+ connman_error("#%-2u %p in %s", i - offset,
+ frames[i], info.dli_fname);
+ continue;
+ }
+
+ ptr = strchr(pos, '\n');
+ *ptr++ = '\0';
+
+ if (strncmp(pos, program_path, pathlen) == 0)
+ pos += pathlen + 1;
+
+ connman_error("#%-2u %p in %s() at %s", i - offset,
+ frames[i], buf, pos);
+ }
+
+ connman_error("+++++++++++++++++++++++++++");
+
+ kill(pid, SIGTERM);
+
+ close(outfd[1]);
+ close(infd[0]);
+}
+
+static void signal_handler(int signo)
+{
+ connman_error("Aborting (signal %d) [%s]", signo, program_exec);
+
+ print_backtrace(2);
+
+ exit(EXIT_FAILURE);
+}
+
+static void signal_setup(sighandler_t handler)
+{
+ struct sigaction sa;
+ sigset_t mask;
+
+ sigemptyset(&mask);
+ sa.sa_handler = handler;
+ sa.sa_mask = mask;
+ sa.sa_flags = 0;
+ sigaction(SIGBUS, &sa, NULL);
+ sigaction(SIGILL, &sa, NULL);
+ sigaction(SIGFPE, &sa, NULL);
+ sigaction(SIGSEGV, &sa, NULL);
+ sigaction(SIGABRT, &sa, NULL);
+ sigaction(SIGPIPE, &sa, NULL);
+}
+
+extern struct connman_debug_desc __start___debug[];
+extern struct connman_debug_desc __stop___debug[];
+
+static gchar **enabled = NULL;
+
+static connman_bool_t is_enabled(struct connman_debug_desc *desc)
+{
+ int i;
+
+ if (enabled == NULL)
+ return FALSE;
+
+ for (i = 0; enabled[i] != NULL; i++) {
+ if (desc->name != NULL && g_pattern_match_simple(enabled[i],
+ desc->name) == TRUE)
+ return TRUE;
+ if (desc->file != NULL && g_pattern_match_simple(enabled[i],
+ desc->file) == TRUE)
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+void __connman_log_enable(struct connman_debug_desc *start,
+ struct connman_debug_desc *stop)
+{
+ struct connman_debug_desc *desc;
+ const char *name = NULL, *file = NULL;
+
+ if (start == NULL || stop == NULL)
+ return;
+
+ for (desc = start; desc < stop; desc++) {
+ if (desc->flags & CONNMAN_DEBUG_FLAG_ALIAS) {
+ file = desc->file;
+ name = desc->name;
+ continue;
+ }
+
+ if (file != NULL || name != NULL) {
+ if (g_strcmp0(desc->file, file) == 0) {
+ if (desc->name == NULL)
+ desc->name = name;
+ } else
+ file = NULL;
+ }
+
+ if (is_enabled(desc) == TRUE)
+ desc->flags |= CONNMAN_DEBUG_FLAG_PRINT;
+ }
+}
+
+int __connman_log_init(const char *program, const char *debug,
+ connman_bool_t detach)
+{
+ static char path[PATH_MAX];
int option = LOG_NDELAY | LOG_PID;
+ program_exec = program;
+ program_path = getcwd(path, sizeof(path));
+
+ if (debug != NULL)
+ enabled = g_strsplit_set(debug, ":, ", 0);
+
+ __connman_log_enable(__start___debug, __stop___debug);
+
if (detach == FALSE)
option |= LOG_PERROR;
- openlog("connmand", option, LOG_DAEMON);
+ signal_setup(signal_handler);
- syslog(LOG_INFO, "Connection Manager version %s", VERSION);
+ openlog(basename(program), option, LOG_DAEMON);
- debug_enabled = debug;
+ syslog(LOG_INFO, "Connection Manager version %s", VERSION);
return 0;
}
syslog(LOG_INFO, "Exit");
closelog();
+
+ signal_setup(SIG_DFL);
+
+ g_strfreev(enabled);
}
projects / framework / connectivity / connman.git / blobdiff