diff options
Diffstat (limited to 'winsup/cygwin/syslog.cc')
| -rw-r--r-- | winsup/cygwin/syslog.cc | 412 |
1 files changed, 0 insertions, 412 deletions
diff --git a/winsup/cygwin/syslog.cc b/winsup/cygwin/syslog.cc deleted file mode 100644 index f424a4f4e..000000000 --- a/winsup/cygwin/syslog.cc +++ /dev/null @@ -1,412 +0,0 @@ -/* syslog.cc - - Copyright 1996, 1997, 1998, 1999, 2000, 2001 Red Hat, Inc. - -This file is part of Cygwin. - -This software is a copyrighted work licensed under the terms of the -Cygwin license. Please consult the file "CYGWIN_LICENSE" for -details. */ - -#include "winsup.h" -#include <stdlib.h> -#include <stdio.h> -#include <syslog.h> -#include <stdarg.h> -#include <unistd.h> -#include <errno.h> -#include "security.h" -#include "fhandler.h" -#include "path.h" -#include "dtable.h" -#include "cygerrno.h" -#include "cygheap.h" -#include "thread.h" - -/* FIXME: These should probably be in the registry. */ -/* FIXME: The Win95 path should be whatever slash is */ - -#define WIN95_EVENT_LOG_PATH "C:\\CYGWIN_SYSLOG.TXT" -#define CYGWIN_LOG_NAME "Cygwin" - -/* - * Utility function to help enable moving - * WIN95_EVENT_LOG_PATH into registry later. - */ -static const char * -get_win95_event_log_path () -{ - return WIN95_EVENT_LOG_PATH; -} - -/* FIXME: For MT safe code these will need to be replaced */ - -#ifdef _MT_SAFE -#define process_ident _reent_winsup ()->_process_ident -#define process_logopt _reent_winsup ()->_process_logopt -#define process_facility _reent_winsup ()->_process_facility - /* Default priority logmask */ -#define process_logmask _reent_winsup ()->_process_logmask -#else -static char *process_ident = 0; -static int process_logopt = 0; -static int process_facility = 0; - -/* Default priority logmask */ -static int process_logmask = LOG_UPTO (LOG_DEBUG); -#endif - -/* - * openlog: save the passed args. Don't open the - * system log (NT) or log file (95) yet. - */ -extern "C" -void -openlog (const char *ident, int logopt, int facility) -{ - debug_printf ("openlog called with (%s, %d, %d)", - ident ? ident : "<NULL>", logopt, facility); - - if (process_ident != NULL) - { - free (process_ident); - process_ident = 0; - } - if (ident) - { - process_ident = (char *) malloc (strlen (ident) + 1); - if (process_ident == NULL) - { - debug_printf ("failed to allocate memory for process_ident"); - return; - } - strcpy (process_ident, ident); - } - process_logopt = logopt; - process_facility = facility; -} - -/* setlogmask: set the log priority mask and return previous mask. - If maskpri is zero, just return previous. */ -int -setlogmask (int maskpri) -{ - if (maskpri == 0) - return process_logmask; - - int old_mask = process_logmask; - process_logmask = maskpri & LOG_PRIMASK; - - return old_mask; -} - -/* Private class used to handle formatting of syslog message */ -/* It is named pass_handler because it does a two-pass handling of log - strings. The first pass counts the length of the string, and the second - one builds the string. */ - -class pass_handler -{ - private: - FILE *fp_; - char *message_; - int total_len_; - - void shutdown (); - - /* Explicitly disallow copies */ - pass_handler (const pass_handler &); - pass_handler & operator = (const pass_handler &); - - public: - pass_handler (); - ~pass_handler (); - - int initialize (int); - - int print (const char *,...); - int print_va (const char *, va_list); - char *get_message () const { return message_; } - void set_message (char *s) { message_ = s; *message_ = '\0'; } -}; - -pass_handler::pass_handler () : fp_ (0), message_ (0), total_len_ (0) -{ - ; -} - -pass_handler::~pass_handler () -{ - shutdown (); -} - -void -pass_handler::shutdown () -{ - if (fp_ != NULL) - { - fclose (fp_); - fp_ = 0; - } -} - -int -pass_handler::initialize (int pass_number) -{ - shutdown (); - if (pass_number) - return total_len_ + 1; - - fp_ = fopen ("/dev/null", "wb"); - if (fp_ == NULL) - { - debug_printf ("failed to open /dev/null"); - return -1; - } - total_len_ = 0; - return 0; -} - -int -pass_handler::print (const char *fmt, ...) -{ - va_list ap; - va_start (ap, fmt); - int ret = print_va (fmt, ap); - va_end (ap); - return ret; -} - -int -pass_handler::print_va (const char *fmt, va_list list) -{ - if (fp_ != NULL) - { - int len = vfprintf (fp_, fmt, list); - if (len < 0) - return -1; - total_len_ += len; - return 0; - } - else if (message_ != NULL) - { - char *printpos = &message_[strlen (message_)]; - vsprintf (printpos, fmt, list); - return 0; - } - debug_printf ("FAILURE ! fp_ and message_ both 0!! "); - return -1; -} - -/* - * syslog: creates the log message and writes to system - * log (NT) or log file (95). FIXME. WinNT log error messages - * don't look pretty, but in order to fix this we have to - * embed resources in the code and tell the NT registry - * where we are, blech (what happens if we move ?). - * We could, however, add the resources in Cygwin and - * always point to that. - */ - -extern "C" -void -syslog (int priority, const char *message, ...) -{ - debug_printf ("%x %s", priority, message); - /* If the priority fails the current mask, reject */ - if (((priority & LOG_PRIMASK) & process_logmask) == 0) - { - debug_printf ("failing message %x due to priority mask %x", - priority, process_logmask); - return; - } - - /* Translate %m in the message to error text */ - char *errtext = strerror (get_errno ()); - int errlen = strlen (errtext); - int numfound = 0; - - for (const char *cp = message; *cp; cp++) - if (*cp == '%' && cp[1] == 'm') - numfound++; - - char *newmessage = (char *) alloca (strlen (message) + - (errlen * numfound) + 1); - - if (newmessage == NULL) - { - debug_printf ("failed to allocate newmessage"); - return; - } - - char *dst = newmessage; - for (const char *cp2 = message; *cp2; cp2++) - if (*cp2 == '%' && cp2[1] == 'm') - { - cp2++; - strcpy (dst, errtext); - while (*dst) - dst++; - } - else - *dst++ = *cp2; - - *dst = '\0'; - message = newmessage; - - /* Work out the priority type - we ignore the facility for now.. */ - WORD eventType; - switch (LOG_PRI (priority)) - { - case LOG_EMERG: - case LOG_ALERT: - case LOG_CRIT: - case LOG_ERR: - eventType = EVENTLOG_ERROR_TYPE; - break; - case LOG_WARNING: - eventType = EVENTLOG_WARNING_TYPE; - break; - case LOG_NOTICE: - case LOG_INFO: - case LOG_DEBUG: - eventType = EVENTLOG_INFORMATION_TYPE; - break; - default: - eventType = EVENTLOG_ERROR_TYPE; - break; - } - - /* We need to know how long the buffer needs to be. - The only legal way I can see of doing this is to - do a vfprintf to /dev/null, and count the bytes - output, then do it again to a malloc'ed string. This - is ugly, slow, but prevents core dumps :-). - */ - va_list ap; - - pass_handler pass; - for (int pass_number = 0; pass_number < 2; ++pass_number) - { - int n = pass.initialize (pass_number); - if (n == -1) - return; - else if (n > 0) - pass.set_message ((char *) alloca (n)); - - /* Deal with ident_string */ - if (process_ident != NULL) - { - if (pass.print ("%s : ", process_ident) == -1) - return; - } - if (process_logopt & LOG_PID) - { - if (pass.print ("Win32 Process Id = 0x%X : Cygwin Process Id = 0x%X : ", - GetCurrentProcessId (), getpid ()) == -1) - return; - } - - if (!wincap.has_eventlog ()) - { - /* Add a priority string - not needed for systems with - eventlog capability. */ - switch (LOG_PRI (priority)) - { - case LOG_EMERG: - pass.print ("%s : ", "LOG_EMERG"); - break; - case LOG_ALERT: - pass.print ("%s : ", "LOG_ALERT"); - break; - case LOG_CRIT: - pass.print ("%s : ", "LOG_CRIT"); - break; - case LOG_ERR: - pass.print ("%s : ", "LOG_ERR"); - break; - case LOG_WARNING: - pass.print ("%s : ", "LOG_WARNING"); - break; - case LOG_NOTICE: - pass.print ("%s : ", "LOG_NOTICE"); - break; - case LOG_INFO: - pass.print ("%s : ", "LOG_INFO"); - break; - case LOG_DEBUG: - pass.print ("%s : ", "LOG_DEBUG"); - break; - default: - pass.print ("%s : ", "LOG_ERR"); - break; - } - } - - /* Print out the variable part */ - va_start (ap, message); - if (pass.print_va (message, ap) == -1) - return; - va_end (ap); - - } - const char *msg_strings[1]; - char *total_msg = pass.get_message (); - int len = strlen (total_msg); - if (len != 0 && (total_msg[len - 1] == '\n')) - total_msg[len - 1] = '\0'; - - msg_strings[0] = total_msg; - - if (wincap.has_eventlog ()) - { - /* For NT, open the event log and send the message */ - HANDLE hEventSrc = RegisterEventSourceA (NULL, (process_ident != NULL) ? - process_ident : CYGWIN_LOG_NAME); - if (hEventSrc == NULL) - { - debug_printf ("RegisterEventSourceA failed with %E"); - return; - } - ReportEventA (hEventSrc, eventType, 0, 0, - cygheap->user.sid (), 1, 0, msg_strings, NULL); - DeregisterEventSource (hEventSrc); - } - else - { - /* Under Windows 95, append the message to the log file */ - FILE *fp = fopen (get_win95_event_log_path (), "a"); - if (fp == NULL) - { - debug_printf ("failed to open file %s", - get_win95_event_log_path ()); - return; - } - /* Now to prevent several syslog messages from being - interleaved, we must lock the first byte of the file - This works on Win32 even if we created the file above. - */ - HANDLE fHandle = cygheap->fdtab[fileno (fp)]->get_handle (); - if (LockFile (fHandle, 0, 0, 1, 0) == FALSE) - { - debug_printf ("failed to lock file %s", get_win95_event_log_path ()); - fclose (fp); - return; - } - fputs (msg_strings[0], fp); - fputc ('\n', fp); - UnlockFile (fHandle, 0, 0, 1, 0); - if (ferror (fp)) - { - debug_printf ("error in writing syslog"); - } - fclose (fp); - } -} - -extern "C" -void -closelog (void) -{ - ; -} |