Add current version of libSRTP from CVS.

libsrtp/crypto/kernel/err.c

+/*
+ * err.c
+ *
+ * error status reporting functions
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *      
+ * Copyright(c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "err.h"
+
+#ifdef ERR_REPORTING_SYSLOG
+# ifdef HAVE_SYSLOG_H
+#  include <syslog.h>
+# endif
+#endif
+
+
+/*  err_level reflects the level of errors that are reported  */
+
+err_reporting_level_t err_level = err_level_none;
+
+#ifdef SRTP_KERNEL_LINUX
+err_status_t
+err_reporting_init(char *ident) {
+
+  return err_status_ok;
+}
+
+#else /* SRTP_KERNEL_LINUX */   
+
+/* err_file is the FILE to which errors are reported */
+
+static FILE *err_file = NULL;
+
+err_status_t
+err_reporting_init(char *ident) {
+#ifdef ERR_REPORTING_SYSLOG
+  openlog(ident, LOG_PID, LOG_AUTHPRIV);
+#endif
+  
+  /*
+   * Believe it or not, openlog doesn't return an error on failure.
+   * But then, neither does the syslog() call...
+   */
+
+#ifdef ERR_REPORTING_STDOUT
+  err_file = stdout;
+#elif defined(USE_ERR_REPORTING_FILE)
+  /* open file for error reporting */
+  err_file = fopen(ERR_REPORTING_FILE, "w");
+  if (err_file == NULL)
+    return err_status_init_fail;
+#endif
+
+  return err_status_ok;
+}
+
+void
+err_report(int priority, char *format, ...) {
+  va_list args;
+
+  if (priority <= err_level) {
+
+    va_start(args, format);
+    if (err_file != NULL) {
+      vfprintf(err_file, format, args);
+          /*      fprintf(err_file, "\n"); */
+    }
+#ifdef ERR_REPORTING_SYSLOG
+    if (1) { /* FIXME: Make this a runtime option. */
+      int syslogpri;
+
+      switch (priority) {
+      case err_level_emergency:
+        syslogpri = LOG_EMERG;
+        break;
+      case err_level_alert:
+        syslogpri = LOG_ALERT;
+        break;
+      case err_level_critical:
+        syslogpri = LOG_CRIT;
+        break;
+      case err_level_error:
+        syslogpri = LOG_ERR;
+        break;
+      case err_level_warning:
+        syslogpri = LOG_WARNING;
+        break;
+      case err_level_notice:
+        syslogpri = LOG_NOTICE;
+        break;
+      case err_level_info:
+        syslogpri = LOG_INFO;
+        break;
+      case err_level_debug:
+      case err_level_none:
+      default:
+        syslogpri = LOG_DEBUG;
+        break;
+      }
+
+      vsyslog(syslogpri, format, args);
+#endif
+    va_end(args);
+  }
+}
+#endif /* SRTP_KERNEL_LINUX */  
+
+void
+err_reporting_set_level(err_reporting_level_t lvl) { 
+  err_level = lvl;
+}