/* =========================================================================
- logger.c is part of the utils section in the libatalk library,
- which is part of the netatalk project.
+logger.c was written by Simon Bazley (sibaz@sibaz.com)
- logger.c was written by Simon Bazley (sibaz@sibaz.com)
+I believe libatalk is released under the L/GPL licence.
+Just incase, it is, thats the licence I'm applying to this file.
+Netatalk 2001 (c)
- I believe libatalk is released under the L/GPL licence.
-
- Just incase, it is, thats the licence I'm applying to this file.
-
- Netatalk 2001 (c)
-
- ==========================================================================
-
- Logger.c is intended as an alternative to syslog for logging
-
- ---------------------------------------------------------------
-
- The initial plan is to create a structure for general information needed
- to log to a file.
-
- Initally I'll hard code the neccesary stuff to start a log, this should
- probably be moved elsewhere when some code is written to read the log
- file locations from the config files.
-
- As a more longterm idea, I'll code this so that the data struct can be
- duplicated to allow multiple concurrent log files, although this is
- probably a recipe for wasted resources.
-
- ========================================================================= */
+========================================================================= */
#include <stdio.h>
#include <limits.h>
#include <syslog.h>
#include <sys/types.h>
#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/uio.h>
#include <unistd.h>
+#include <sys/time.h>
#include <time.h>
+#include <ctype.h>
+#include <errno.h>
#include <atalk/boolean.h>
-#include <atalk/logger.h>
-
-#define COUNT_ARRAY(array) (sizeof((array))/sizeof((array)[0]))
-#define NUMOF COUNT_ARRAY
-#undef KEEP_LOGFILES_OPEN
-#define DO_SYSLOG
-#define DO_FILELOG
+#include <atalk/util.h>
-#undef DEBUG_OUTPUT_TO_SCREEN
-#undef CHECK_STAT_ON_NEW_FILES
-#undef CHECK_ACCESS_ON_NEW_FILES
-
-/* =========================================================================
- External function declarations
- ========================================================================= */
-
-/* setup the internal variables used by the logger (called automatically) */
-void log_init();
-
-/* Setup the log filename and the loglevel, and the type of log it is. */
-bool log_setup(char *filename, enum loglevels loglevel, enum logtypes logtype,
- int display_options);
-
-/* Setup the Level and type of log that will be logged to syslog. */
-void syslog_setup(enum loglevels loglevel, enum logtypes logtype,
- int display_options, int facility);
+#include <atalk/logger.h>
-/* finish up and close the logs */
-void log_close();
+#define OPEN_LOGS_AS_UID 0
-/* This function sets up the processname */
-void set_processname(char *processname);
+#define COUNT_ARRAY(array) (sizeof((array))/sizeof((array)[0]))
-/* Log a Message */
-void make_log(enum loglevels loglevel, enum logtypes logtype,
- char *message, ...);
-#ifndef DISABLE_LOGGER
-make_log_func set_log_location(char *srcfilename, int srclinenumber);
+#define MAXLOGSIZE 512
+
+#define LOGLEVEL_STRING_IDENTIFIERS { \
+ "LOG_NOTHING", \
+ "LOG_SEVERE", \
+ "LOG_ERROR", \
+ "LOG_WARN", \
+ "LOG_NOTE", \
+ "LOG_INFO", \
+ "LOG_DEBUG", \
+ "LOG_DEBUG6", \
+ "LOG_DEBUG7", \
+ "LOG_DEBUG8", \
+ "LOG_DEBUG9", \
+ "LOG_MAXDEBUG"}
+
+/* these are the string identifiers corresponding to each logtype */
+#define LOGTYPE_STRING_IDENTIFIERS { \
+ "Default", \
+ "Core", \
+ "Logger", \
+ "CNID", \
+ "AFPDaemon", \
+ "ATalkDaemon", \
+ "PAPDaemon", \
+ "UAMSDaemon", \
+ "Console", \
+ "end_of_list_marker"} \
/* =========================================================================
Structure definitions
========================================================================= */
-/* A structure containing object level stuff */
-struct tag_log_file_data {
- char log_filename[PATH_MAX]; /* Name of file */
- FILE *log_file; /* FILE pointer to file */
- enum loglevels log_level; /* Log Level to put in this file */
- int display_options;
-};
-
-typedef struct tag_log_file_data log_file_data_pair[2];
-
-/* A structure containg class level stuff */
-struct tag_global_log_data {
- int struct_size;
-
- char *temp_src_filename;
- int temp_src_linenumber;
- char processname[16];
-
- char *log_file_directory; /* Path of directory containing log files */
- log_file_data_pair **logs;
-};
-
-struct what_to_print_array {
- bool print_datetime;
- bool print_processname;
- bool print_pid;
- bool print_srcfile;
- bool print_srcline;
- bool print_errlevel;
- bool print_errtype;
-};
+/* Main log config */
+typedef struct {
+ int inited; /* file log config initialized ? */
+ int filelogging; /* Any level set to filelogging ? */
+ /* Deactivates syslog logging */
+ char processname[16];
+ int syslog_opened; /* syslog opened ? */
+ int facility; /* syslog facility to use */
+ int syslog_display_options;
+ enum loglevels syslog_level; /* Log Level to send to syslog */
+ int console; /* if logging to console from a cli util */
+} log_config_t;
+
+/* This stores the config and options for one filelog type (e.g. logger, afpd etc.) */
+typedef struct {
+ int set; /* set individually ? yes: changing default
+ * doesnt change it. no: it changes it.*/
+ char *filename; /* Name of file */
+ int fd; /* logfiles fd */
+ enum loglevels level; /* Log Level to put in this file */
+ int display_options;
+} filelog_conf_t;
/* =========================================================================
- Internal function declarations
+ Config
========================================================================= */
-void generate_message_details(char *message_details_buffer,
- int message_details_buffer_length,
- struct tag_log_file_data *log_struct,
- enum loglevels loglevel, enum logtypes logtype);
-
-int get_syslog_equivalent(enum loglevels loglevel);
-
-static char *get_command_name(char *commandpath);
-
-/* =========================================================================
- Instanciated data
- ========================================================================= */
-
-/* A populated instance */
+/* Main log config container */
+static log_config_t log_config = {
+ 0, /* Initialized ? 0 = no */
+ 0, /* No filelogging setup yet */
+ {0}, /* processname */
+ 0, /* syslog opened ? */
+ logfacility_daemon, /* syslog facility to use */
+ logoption_ndelay|logoption_pid, /* logging options for syslog */
+ 0, /* log level for syslog */
+ 0 /* not logging to console */
+};
-static log_file_data_pair default_log_file_data_pair = {
-{
- /* log_filename */ "\0\0\0\0\0\0\0\0",
- /* log_file */ NULL,
- /* log_level */ log_debug,
- /* display_options */ logoption_pid
-},
-{
- /* log_filename */ LOGFILEPATH,
- /* log_file */ NULL,
- /* log_level */ log_debug,
- /* display_options */ logoption_pid
-}};
-
-static log_file_data_pair *log_file_data_array[logtype_end_of_list_marker] =
-{&default_log_file_data_pair};
-
-/* The class (populated) */
-static struct tag_global_log_data global_log_data = {
- /* struct_size */ sizeof(struct tag_global_log_data),
- /* temp_src_filename */ NULL,
- /* temp_src_linenumber */ 0,
- /* processname */ "",
- /* log_file_directory */ "",
- /* logs */ NULL
+/* Default log config: log nothing to files.
+ 0: not set individually
+ NULL: Name of file
+ -1: logfiles fd
+ 0: Log Level
+ 0: Display options */
+#define DEFAULT_LOG_CONFIG {0, NULL, -1, 0, 0}
+
+static filelog_conf_t file_configs[logtype_end_of_list_marker] = {
+ DEFAULT_LOG_CONFIG, /* logtype_default */
+ DEFAULT_LOG_CONFIG, /* logtype_core */
+ DEFAULT_LOG_CONFIG, /* logtype_logger */
+ DEFAULT_LOG_CONFIG, /* logtype_cnid */
+ DEFAULT_LOG_CONFIG, /* logtype_afpd */
+ DEFAULT_LOG_CONFIG, /* logtype_atalkd */
+ DEFAULT_LOG_CONFIG, /* logtype_papd */
+ DEFAULT_LOG_CONFIG, /* logtype_uams */
+ DEFAULT_LOG_CONFIG /* logtype_console */
};
-/* macro to get access to the array */
-#define log_file_arr (global_log_data.logs)
+/* These are used by the LOG macro to store __FILE__ and __LINE__ */
+static const char *log_src_filename;
+static int log_src_linenumber;
/* Array to store text to list given a log type */
-static const char * arr_logtype_strings[] = LOGTYPE_STRING_IDENTIFIERS;
-static const int num_logtype_strings = COUNT_ARRAY(arr_logtype_strings);
+static const char *arr_logtype_strings[] = LOGTYPE_STRING_IDENTIFIERS;
+static const unsigned int num_logtype_strings = COUNT_ARRAY(arr_logtype_strings);
/* Array for charachters representing log severity in the log file */
-static const char arr_loglevel_chars[] = {'S', 'E', 'W', 'N', 'I', 'D'};
-static const int num_loglevel_chars = COUNT_ARRAY(arr_loglevel_chars);
+static const char arr_loglevel_chars[] = {'-','S', 'E', 'W', 'N', 'I', 'D'};
+static const unsigned int num_loglevel_chars = COUNT_ARRAY(arr_loglevel_chars);
-static const char * arr_loglevel_strings[] = LOGLEVEL_STRING_IDENTIFIERS;
-static const int num_loglevel_strings = COUNT_ARRAY(arr_loglevel_strings);
+static const char *arr_loglevel_strings[] = LOGLEVEL_STRING_IDENTIFIERS;
+static const unsigned int num_loglevel_strings = COUNT_ARRAY(arr_loglevel_strings);
-#else /* #ifndef DISABLE_LOGGER */
- char *disabled_logger_processname=NULL;
-#endif /* DISABLE_LOGGER */
/* =========================================================================
- Global function definitions
+ Internal function definitions
========================================================================= */
-#ifndef DISABLE_LOGGER
-
-/* remember I'm keeping a copy of the actual char * Filename, so you mustn't
- delete it, until you've finished with the log. Also you're responsible
- for deleting it when you have finished with it. */
-void log_init()
-{
- if (global_log_data.logs==NULL)
- {
- /* first check default_log_file_data_pair */
-
- /* next clear out the log_file_data_array */
- memset(log_file_data_array, 0, sizeof(log_file_data_array));
- /* now set default_log_file_data_pairs */
- log_file_data_array[0] = &default_log_file_data_pair;
-
- /* now setup the global_log_data struct */
- global_log_data.logs = log_file_data_array;
- }
-}
-#endif /* #ifndef DISABLE_LOGGER */
-
-bool log_setup(char *filename, enum loglevels loglevel, enum logtypes logtype,
- int display_options)
+/*
+ * If filename == NULL its for syslog logging, otherwise its for file-logging.
+ * "unsetuplog" calls with loglevel == NULL.
+ * loglevel == NULL means:
+ * if logtype == default
+ * disable logging
+ * else
+ * set to default logging
+ */
+
+/* -[un]setuplog <logtype> <loglevel> [<filename>]*/
+static void setuplog_internal(const char *loglevel, const char *logtype, const char *filename)
{
-#ifndef DISABLE_LOGGER
-
- struct stat statbuf;
- int firstattempt;
- int retval;
- gid_t gid;
- uid_t uid;
- int access;
- char lastchar[2];
-
- log_file_data_pair *logs;
+ unsigned int typenum, levelnum;
- log_init();
-
- logs = log_file_arr[logtype];
-
- if (logs==NULL)
- {
- logs = (log_file_data_pair *)malloc(sizeof(log_file_data_pair));
- if (logs==NULL)
- {
- LOG(log_severe, logtype_logger, "can't calloc in log_setup");
+ /* Parse logtype */
+ for( typenum=0; typenum < num_logtype_strings; typenum++) {
+ if (strcasecmp(logtype, arr_logtype_strings[typenum]) == 0)
+ break;
}
- else
- {
- /*
- memcpy(logs, log_file_arr[logtype_default], sizeof(log_file_data_pair));
- */
- log_file_arr[logtype] = logs;
- (*logs)[1].log_file = NULL;
+ if (typenum >= num_logtype_strings) {
+ return;
}
- }
- if ( ((*logs)[1].log_file == stdout) && ((*logs)[1].log_file != NULL) )
- {
- fclose((*logs)[1].log_file);
- (*logs)[1].log_file = NULL;
- }
-
- if (strlen(global_log_data.log_file_directory)>0)
- {
- lastchar[0] = global_log_data.
- log_file_directory[strlen(global_log_data.log_file_directory)-1];
-
- if (lastchar[0] == '/' || lastchar[0] == '\\' || lastchar[0] == ':')
- lastchar[0] = 0;
- else
- /* this should probably be a platform specific path separator */
- lastchar[0] = '/';
-
- lastchar[1] = 0;
- }
- else
- lastchar[0] = 0;
-
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("filename is %s stored at location %p\n", (*logs)[1].log_filename,
- (*logs)[1].log_filename);
-#endif /* DEBUG_OUTPUT_TO_SCREEN */
- if (filename == NULL)
- {
- strncpy((*logs)[1].log_filename,
- (*(log_file_arr[0]))[1].log_filename, PATH_MAX);
- }
- else
- {
- sprintf((*logs)[1].log_filename, "%s%s%s",
- global_log_data.log_file_directory,
- lastchar, filename);
- }
- (*logs)[1].log_level = loglevel;
- (*logs)[1].display_options = display_options;
-
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("filename is %s stored at location %p\n", (*logs)[1].log_filename,
- (*logs)[1].log_filename);
-#endif /* DEBUG_OUTPUT_TO_SCREEN */
-
-#ifdef CHECK_STAT_ON_NEW_FILES
- uid = geteuid();
- gid = getegid();
-
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("about to stat file %s\n", (*logs)[1].log_filename);
-#endif
- firstattempt = stat((*logs)[1].log_filename, &statbuf);
-
- if (firstattempt == -1)
- {
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("about to call Log with %d, %d, %s, %s\n",
- log_note, logtype_logger,
- "can't stat Logfile",
- (*logs)[1].log_filename
- );
-#endif
-
- /* syslog(LOG_INFO, "stat failed"); */
- LOG(log_warning, logtype_logger, "stat fails on file %s",
- (*logs)[1].log_filename);
-
- if (strlen(global_log_data.log_file_directory)>0)
- {
- retval = stat(global_log_data.log_file_directory, &statbuf);
- if (retval == -1)
- {
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("can't stat dir either so I'm giving up\n");
-#endif
- LOG(log_severe, logtype_logger, "can't stat directory %s either",
- global_log_data.log_file_directory);
- return false;
- }
+ /* Parse loglevel */
+ if (loglevel == NULL) {
+ levelnum = 0;
+ } else {
+ for(levelnum=1; levelnum < num_loglevel_strings; levelnum++) {
+ if (strcasecmp(loglevel, arr_loglevel_strings[levelnum]) == 0)
+ break;
+ }
+ if (levelnum >= num_loglevel_strings) {
+ return;
+ }
}
- }
-
-#ifdef CHECK_ACCESS_ON_NEW_FILES
- access = ((statbuf.st_uid == uid)?(statbuf.st_mode & S_IWUSR):0) +
- ((statbuf.st_gid == gid)?(statbuf.st_mode & S_IWGRP):0) +
- (statbuf.st_mode & S_IWOTH);
-
- if (access==0)
- {
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("failing with %d, %d, %s, %s\n", log_note, logtype_logger,
- "can't access Logfile %s", (*logs)[1].log_filename);
-#endif
- LOG(log_note, logtype_logger, "can't access file %s",
- (*logs)[1].log_filename);
- return false;
- }
-#endif /* CHECK_ACCESS_ON_NEW_FILES */
-#endif /* CHECK_STAT_ON_NEW_FILES */
-#ifdef KEEP_LOGFILES_OPEN
- if ((*logs)[1].log_file!=NULL)
- fclose((*logs)[1].log_file);
-
- (*logs)[1].log_file = fopen((*logs)[1].log_filename, "at");
- if ((*logs)[1].log_file == NULL)
- {
- LOG(log_severe, logtype_logger, "can't open Logfile %s",
- (*logs)[1].log_filename
- );
- return false;
- }
-#endif
-
- LOG(log_info, logtype_logger, "Log setup complete");
+ /* is this a syslog setup or a filelog setup ? */
+ if (filename == NULL) {
+ /* must be syslog */
+ syslog_setup(levelnum, 0,
+ log_config.syslog_display_options,
+ log_config.facility);
+ } else {
+ /* this must be a filelog */
+ log_setup(filename, levelnum, typenum);
+ }
-#endif /* DISABLE_LOGGER */
- return true;
+ return;
}
-
-void syslog_setup(enum loglevels loglevel, enum logtypes logtype,
- int display_options, int facility)
+static void generate_message_details(char *message_details_buffer,
+ int message_details_buffer_length,
+ int display_options,
+ enum loglevels loglevel, enum logtypes logtype)
{
-#ifndef DISABLE_LOGGER
- log_file_data_pair *logs;
+ char *ptr = message_details_buffer;
+ int templen;
+ int len = message_details_buffer_length;
+ struct timeval tv;
+ pid_t pid;
- log_init();
+ *ptr = 0;
- logs = log_file_arr[logtype];
+ /* Print time */
+ gettimeofday(&tv, NULL);
+ strftime(ptr, len, "%b %d %H:%M:%S.", localtime(&tv.tv_sec));
+ templen = strlen(ptr);
+ len -= templen;
+ ptr += templen;
- if (logs==NULL)
- {
- logs = (log_file_data_pair *)malloc(sizeof(log_file_data_pair));
- if (logs==NULL)
- {
- LOG(log_severe, logtype_logger, "can't calloc in log_setup");
- }
- else
- {
- memcpy(logs, log_file_arr[logtype_default], sizeof(log_file_data_pair));
- log_file_arr[logtype] = logs;
+ templen = snprintf(ptr, len, "%06u ", (int)tv.tv_usec);
+ if (templen == -1 || templen >= len)
+ return;
+
+ len -= templen;
+ ptr += templen;
+
+ /* Process name && PID */
+ pid = getpid();
+ templen = snprintf(ptr, len, "%s[%d]", log_config.processname, pid);
+ if (templen == -1 || templen >= len)
+ return;
+ len -= templen;
+ ptr += templen;
+
+ /* Source info ? */
+ if ( ! (display_options & logoption_nsrcinfo)) {
+ char *basename = strrchr(log_src_filename, '/');
+ if (basename)
+ templen = snprintf(ptr, len, " {%s:%d}", basename + 1, log_src_linenumber);
+ else
+ templen = snprintf(ptr, len, " {%s:%d}", log_src_filename, log_src_linenumber);
+ if (templen == -1 || templen >= len)
+ return;
+ len -= templen;
+ ptr += templen;
}
- }
- (*logs)[0].log_file = NULL;
- (*logs)[0].log_filename[0] = 0;
- (*logs)[0].log_level = loglevel;
- (*logs)[0].display_options = display_options;
+ /* Errorlevel */
+ if (loglevel >= (num_loglevel_chars - 1))
+ templen = snprintf(ptr, len, " (D%d:", loglevel - 1);
+ else
+ templen = snprintf(ptr, len, " (%c:", arr_loglevel_chars[loglevel]);
- openlog(global_log_data.processname, (*logs)[0].display_options, facility);
+ if (templen == -1 || templen >= len)
+ return;
+ len -= templen;
+ ptr += templen;
- LOG(log_info, logtype_logger, "SysLog setup complete");
-#else /* DISABLE_LOGGER */
-/* behave like a normal openlog call */
- openlog(disabled_logger_processname, display_options, facility);
-#endif /* DISABLE_LOGGER */
+ /* Errortype */
+ if (logtype<num_logtype_strings) {
+ templen = snprintf(ptr, len, "%s", arr_logtype_strings[logtype]);
+ if (templen == -1 || templen >= len)
+ return;
+ len -= templen;
+ ptr += templen;
+ }
+
+ strncat(ptr, "): ", len);
+ ptr[len -1] = 0;
}
-void log_close()
+static int get_syslog_equivalent(enum loglevels loglevel)
{
-#ifndef DISABLE_LOGGER
- log_file_data_pair *logs;
- int n;
-
- LOG(log_info, logtype_logger, "Closing logs");
-
- for(n=(sizeof(log_file_arr)-1);n>0;n--)
- {
- logs = log_file_arr[n];
-#ifdef KEEP_LOGFILES_OPEN
- if ((*logs)[1].log_file!=NULL)
- fclose((*logs)[1].log_file);
-#endif /* KEEP_LOGFILES_OPEN */
- if (logs!=NULL)
+ switch (loglevel)
{
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("Freeing log_data %d, stored at %p\n", n, logs);
- printf("\t(filename) %s\t(type) %s\n", (*logs)[1].log_filename,
- ((n<num_logtype_strings)?arr_logtype_strings[n]:""));
-#endif /* DEBUG_OUTPUT_TO_SCREEN */
- free(logs);
+ /* The question is we know how bad it is for us,
+ but how should that translate in the syslogs? */
+ case 1: /* severe */
+ return LOG_ERR;
+ case 2: /* error */
+ return LOG_ERR;
+ case 3: /* warning */
+ return LOG_WARNING;
+ case 4: /* note */
+ return LOG_NOTICE;
+ case 5: /* information */
+ return LOG_INFO;
+ default: /* debug */
+ return LOG_DEBUG;
}
- log_file_arr[n] = NULL;
- }
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("Freeing log_data %d, stored at %p\n", n, log_file_arr[n]);
- printf("\t(filename) %s\t(type) %s\n",
- (*(log_file_arr[n]))[1].log_filename,
- ((n<num_logtype_strings)?arr_logtype_strings[n]:"")
- );
-#endif /* DEBUG_OUTPUT_TO_SCREEN */
-#endif /* DISABLE_LOGGER */
-
- closelog();
}
-/* This function sets up the processname */
-void set_processname(char *processname)
-{
-#ifndef DISABLE_LOGGER
- /* strncpy(global_log_data.processname, GetCommandName(processname), 15); */
- strncpy(global_log_data.processname, processname, 15);
- global_log_data.processname[15] = 0;
-#else /* DISABLE_LOGGER */
- disabled_logger_processname = processname;
-#endif /* DISABLE_LOGGER */
-}
+/* =========================================================================
+ Global function definitions
+ ========================================================================= */
-#ifndef DISABLE_LOGGER
-/* This is called by the macro so set the location of the caller of Log */
-make_log_func set_log_location(char *srcfilename, int srclinenumber)
+void log_init(void)
{
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("Setting Log Location\n");
-#endif
- global_log_data.temp_src_filename = srcfilename;
- global_log_data.temp_src_linenumber = srclinenumber;
-
- return make_log_entry;
+ syslog_setup(log_note, 0,
+ log_config.syslog_display_options,
+ log_config.facility);
}
-#endif /* DISABLE_LOGGER */
-/* -------------------------------------------------------------------------
- MakeLog has 1 main flaws:
- The message in its entirity, must fit into the tempbuffer.
- So it must be shorter than MAXLOGSIZE
- ------------------------------------------------------------------------- */
-void make_log_entry(enum loglevels loglevel, enum logtypes logtype,
- char *message, ...)
+void log_setup(const char *filename, enum loglevels loglevel, enum logtypes logtype)
{
- va_list args;
- char log_buffer[MAXLOGSIZE];
-#ifndef DISABLE_LOGGER
- char log_details_buffer[MAXLOGSIZE];
-
- log_file_data_pair *logs;
-
- log_init();
-
- logs = log_file_arr[logtype];
-
- if (logs==NULL)
- {
- logs = log_file_arr[logtype_default];
- }
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("Making Log\n");
-#endif
-
-#endif /* DISABLE_LOGGER */
-
- /* Initialise the Messages */
- va_start(args, message);
-
- vsnprintf(log_buffer, sizeof(log_buffer), message, args);
+ uid_t process_uid;
+
+ if (loglevel == 0) {
+ /* Disable */
+ if (file_configs[logtype].set) {
+ if (file_configs[logtype].filename) {
+ free(file_configs[logtype].filename);
+ file_configs[logtype].filename = NULL;
+ }
+ close(file_configs[logtype].fd);
+ file_configs[logtype].fd = -1;
+ file_configs[logtype].level = 0;
+ file_configs[logtype].set = 0;
+
+ /* if disabling default also set all "default using" levels to 0 */
+ if (logtype == logtype_default) {
+ while (logtype != logtype_end_of_list_marker) {
+ if ( ! (file_configs[logtype].set))
+ file_configs[logtype].level = 0;
+ logtype++;
+ }
+ }
+ }
- /* Finished with args for now */
- va_end(args);
+ return;
+ }
-#ifdef DISABLE_LOGGER
- syslog(get_syslog_equivalent(loglevel), "%s", log_buffer);
-#else /* DISABLE_LOGGER */
+ /* Safety check */
+ if (NULL == filename)
+ return;
-#ifdef DO_SYSLOG
- /* check if sysloglevel is high enough */
- if ((*logs)[0].log_level>=loglevel)
- {
- int sysloglevel = get_syslog_equivalent(loglevel);
+ /* Resetting existing config ? */
+ if (file_configs[logtype].set && file_configs[logtype].filename) {
+ free(file_configs[logtype].filename);
+ file_configs[logtype].filename = NULL;
+ close(file_configs[logtype].fd);
+ file_configs[logtype].fd = -1;
+ file_configs[logtype].level = 0;
+ file_configs[logtype].set = 0;
+ }
- generate_message_details(log_details_buffer, sizeof(log_details_buffer),
- &(*logs)[0], loglevel, logtype);
+ /* Check if logging to a console */
+ if (logtype == logtype_console) {
+ log_config.console = 1;
+ logtype = logtype_default;
+ }
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("About to log %s %s\n", log_details_buffer, log_buffer);
- printf("about to do syslog\n");
- printf("done onw syslog\n");
-#endif
- syslog(sysloglevel, "%s: %s", log_details_buffer, log_buffer);
- /*
- syslog(sysloglevel, "%s:%s: %s", log_levelString,
- log_typeString, LogBuffer);
- */
- }
-#endif
+ /* Set new values */
+ file_configs[logtype].filename = strdup(filename);
+ file_configs[logtype].level = loglevel;
+
+
+ /* Open log file as OPEN_LOGS_AS_UID*/
+ /* Is it /dev/tty ? */
+ if (strcmp(file_configs[logtype].filename, "/dev/tty") == 0) {
+ file_configs[logtype].fd = 1; /* stdout */
+ } else {
+ process_uid = geteuid();
+ if (process_uid) {
+ if (seteuid(OPEN_LOGS_AS_UID) == -1) {
+ /* XXX failing silently */
+ return;
+ }
+ }
+ file_configs[logtype].fd = open( file_configs[logtype].filename,
+ O_CREAT | O_WRONLY | O_APPEND,
+ S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
+ if (process_uid) {
+ if (seteuid(process_uid) == -1) {
+ LOG(log_error, logtype_logger, "can't seteuid back %s", strerror(errno));
+ exit(EXITERR_SYS);
+ }
+ }
+ }
-#ifdef DO_FILELOG
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("about to do the filelog\n");
-#endif
- /* check if log_level is high enough */
- if ((*logs)[1].log_level>=loglevel) {
-
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("Open the Log, FILE* is %p\n", (*logs)[1].log_file);
-#endif
- /* if log isn't open, open it */
- if ((*logs)[1].log_file==NULL) {
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("Opening the Log, filename is %s\n", (*logs)[1].log_filename);
-#endif
- (*logs)[1].log_file = fopen((*logs)[1].log_filename, "at");
- if ((*logs)[1].log_file == NULL)
- {
- (*logs)[1].log_file = stdout;
- LOG(log_severe, logtype_logger, "can't open Logfile %s",
- (*logs)[1].log_filename
- );
+ /* Check for error opening/creating logfile */
+ if (-1 == file_configs[logtype].fd) {
+ free(file_configs[logtype].filename);
+ file_configs[logtype].filename = NULL;
+ file_configs[logtype].level = -1;
+ file_configs[logtype].set = 0;
return;
- }
}
- generate_message_details(log_details_buffer, sizeof(log_details_buffer),
- &(*logs)[1], loglevel, logtype);
-
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("Files open, lets log\n");
- printf("FILE* is %p\n", (*logs)[1].log_file);
- printf("%s: %s\n", log_details_buffer, log_buffer);
-#endif
- fprintf((*logs)[1].log_file, "%s: %s\n", log_details_buffer, log_buffer);
-
-#ifndef KEEP_LOGFILES_OPEN
- if ((*logs)[1].log_file != stdout)
- {
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("Closing %s\n", (*logs)[1].log_filename);
-#endif
- fclose((*logs)[1].log_file);
- (*logs)[1].log_file = NULL;
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("Closed\n");
-#endif
+ fcntl(file_configs[logtype].fd, F_SETFD, FD_CLOEXEC);
+ file_configs[logtype].set = 1;
+ log_config.filelogging = 1;
+ log_config.inited = 1;
+
+ /* Here's how we make it possible to LOG to a logtype like "logtype_afpd" */
+ /* which then uses the default logtype setup if it isn't setup itself: */
+ /* we just copy the loglevel from default to all logtypes that are not setup. */
+ /* In "make_log_entry" we then check for the logtypes if they arent setup */
+ /* and use default then. We must provide accessible values for all logtypes */
+ /* in order to make it easy and fast to check the loglevels in the LOG macro! */
+
+ if (logtype == logtype_default) {
+ int typeiter = 0;
+ while (typeiter != logtype_end_of_list_marker) {
+ if ( ! (file_configs[typeiter].set))
+ file_configs[typeiter].level = loglevel;
+ typeiter++;
+ }
}
-#endif
- }
-#endif
- global_log_data.temp_src_filename = NULL;
- global_log_data.temp_src_linenumber = 0;
-#endif /* DISABLE_LOGGER */
+ LOG(log_debug, logtype_logger, "Setup file logging: type: %s, level: %s, file: %s",
+ arr_logtype_strings[logtype], arr_loglevel_strings[loglevel], file_configs[logtype].filename);
}
-#ifndef DISABLE_LOGGER
-void load_proccessname_from_proc()
+/* logtype is ignored, it's just one for all */
+void syslog_setup(int loglevel, enum logtypes logtype _U_,
+ int display_options, int facility)
{
- pid_t pid = getpid();
- char buffer[PATH_MAX];
- char procname[16];
- FILE * statfile;
- char *ptr;
-
- sprintf(buffer, "/proc/%d/stat", pid);
- statfile = fopen(buffer, "rt");
- fgets(buffer, PATH_MAX-1, statfile);
- fclose(statfile);
-
- ptr = (char *)strrchr(buffer, ')');
- *ptr = '\0';
- memset(procname, 0, sizeof procname);
- sscanf(buffer, "%d (%15c", &pid, procname); /* comm[16] in kernel */
-
- set_processname(procname);
-}
+ log_config.syslog_level = loglevel;
+ log_config.syslog_display_options = display_options;
+ log_config.facility = facility;
-/* =========================================================================
- Internal function definitions
- ========================================================================= */
+ log_config.inited = 1;
-static char *get_command_name(char *commandpath)
-{
- char *ptr;
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("getting command name %s\n",commandpath);
-#endif
- ptr = (char *)strrchr(commandpath, '/');
- if (ptr==NULL)
- ptr = commandpath;
- else
- ptr++;
-
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("Concluded %s\n", ptr);
-#endif
- return ptr;
+ LOG(log_note, logtype_logger, "Set syslog logging to level: %s",
+ arr_loglevel_strings[loglevel]);
}
-void workout_what_to_print(struct what_to_print_array *what_to_print,
- struct tag_log_file_data *log_struct)
+void log_close(void)
{
- /* is this a syslog entry? */
- if (log_struct->log_filename[0]==0)
- {
- what_to_print->print_datetime = false;
- what_to_print->print_processname = false;
- what_to_print->print_pid = false;
- }
- else
- {
- what_to_print->print_datetime = true;
- what_to_print->print_processname = true;
-
- /* pid is dealt with at the syslog level if we're syslogging */
- what_to_print->print_pid =
- (((log_struct->display_options & logoption_pid) == 0)?false:true);
- }
-
- what_to_print->print_srcfile =
- (((log_struct->display_options & logoption_nfile) == 0)?true:false);
- what_to_print->print_srcline =
- (((log_struct->display_options & logoption_nline) == 0)?true:false);
-
- what_to_print->print_errlevel = true;
- what_to_print->print_errtype = true;
}
-void generate_message_details(char *message_details_buffer,
- int message_details_buffer_length,
- struct tag_log_file_data *log_struct,
- enum loglevels loglevel, enum logtypes logtype)
+/* This function sets up the processname */
+void set_processname(const char *processname)
{
- char datebuffer[32];
- char processinfo[64];
-
- char *ptr = message_details_buffer;
- int templen;
- int len = message_details_buffer_length;
-
- char log_buffer[MAXLOGSIZE];
- const char *logtype_string;
-
- char loglevel_string[12]; /* max int size is 2 billion, or 10 digits */
-
- struct what_to_print_array what_to_print;
-
- workout_what_to_print(&what_to_print, log_struct);
-
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("Making MessageDetails\n");
-#endif
-
- *ptr = 0;
- /*
- datebuffer[0] = 0;
- ptr = datebuffer;
- */
-
- if (what_to_print.print_datetime)
- {
- time_t thetime;
- time(&thetime);
-
- /* some people might prefer localtime() to gmtime() */
- strftime(ptr, len, "%b %d %H:%M:%S", gmtime(&thetime));
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("date is %s\n", ptr);
-#endif
-
- templen = strlen(ptr);
- len -= templen;
- if (what_to_print.print_processname || what_to_print.print_pid)
- strncat(ptr, " ", len);
- else
- strncat(ptr, ":", len);
-
- templen++;
- len --;
- ptr += templen;
- }
-
- /*
- processinfo[0] = 0;
- ptr = processinfo;
- */
-
- if (what_to_print.print_processname)
- {
- strncpy(ptr, global_log_data.processname, len);
-
- templen = strlen(ptr);
- len -= templen;
- ptr += templen;
- }
+ strncpy(log_config.processname, processname, 15);
+ log_config.processname[15] = 0;
+}
- if (what_to_print.print_pid)
- {
- pid_t pid = getpid();
+/* Called by the LOG macro for syslog messages */
+static void make_syslog_entry(enum loglevels loglevel, enum logtypes logtype _U_, char *message)
+{
+ if ( !log_config.syslog_opened ) {
+ openlog(log_config.processname, log_config.syslog_display_options,
+ log_config.facility);
+ log_config.syslog_opened = 1;
+ }
- sprintf(ptr, "[%d]", pid);
+ syslog(get_syslog_equivalent(loglevel), "%s", message);
+}
- templen = strlen(ptr);
- len -= templen;
- ptr += templen;
- }
+/* -------------------------------------------------------------------------
+ make_log_entry has 1 main flaws:
+ The message in its entirity, must fit into the tempbuffer.
+ So it must be shorter than MAXLOGSIZE
+ ------------------------------------------------------------------------- */
+void make_log_entry(enum loglevels loglevel, enum logtypes logtype,
+ const char *file, int line, char *message, ...)
+{
+ /* fn is not reentrant but is used in signal handler
+ * with LOGGER it's a little late source name and line number
+ * are already changed. */
+ static int inlog = 0;
+ int fd, len;
+ char temp_buffer[MAXLOGSIZE];
+ char log_details_buffer[MAXLOGSIZE];
+ va_list args;
+ struct iovec iov[2];
+
+ if (inlog)
+ return;
- if (what_to_print.print_srcfile || what_to_print.print_srcline)
- {
- char sprintf_buffer[8];
- char *buff_ptr;
+ inlog = 1;
- sprintf_buffer[0] = '[';
- if (what_to_print.print_srcfile)
- {
- strcpy(&sprintf_buffer[1], "%s");
- buff_ptr = &sprintf_buffer[3];
+ if (!log_config.inited) {
+ log_init();
}
- if (what_to_print.print_srcfile && what_to_print.print_srcline)
- {
- strcpy(&sprintf_buffer[3], ":");
- buff_ptr = &sprintf_buffer[4];
+
+ if (file_configs[logtype].level >= loglevel) {
+ log_src_filename = file;
+ log_src_linenumber = line;
}
- if (what_to_print.print_srcline)
- {
- strcpy(buff_ptr, "%d");
- buff_ptr = &buff_ptr[2];
+ else if (!log_config.filelogging && log_config.syslog_level >= loglevel) {
+ /* Initialise the Messages */
+ va_start(args, message);
+ vsnprintf(temp_buffer, MAXLOGSIZE -1, message, args);
+ va_end(args);
+ temp_buffer[MAXLOGSIZE -1] = 0;
+ make_syslog_entry(loglevel, logtype, temp_buffer);
+ inlog = 0;
+ return;
}
- strcpy(buff_ptr, "]");
-
- /*
- ok sprintf string is ready, now is the 1st parameter src or linenumber
- */
- if (what_to_print.print_srcfile)
- {
- sprintf(ptr, sprintf_buffer,
- global_log_data.temp_src_filename,
- global_log_data.temp_src_linenumber);
+ else {
+ inlog = 0;
+ return;
}
- else
- {
- sprintf(ptr, sprintf_buffer, global_log_data.temp_src_linenumber);
- }
-
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("Process info is %s\n", ptr);
-#endif
-
- templen = strlen(ptr);
- len -= templen;
- ptr += templen;
- }
+ /* Check if requested logtype is setup */
+ if (file_configs[logtype].set)
+ /* Yes */
+ fd = file_configs[logtype].fd;
+ else
+ /* No: use default */
+ fd = file_configs[logtype_default].fd;
- if (what_to_print.print_processname || what_to_print.print_pid ||
- what_to_print.print_srcfile || what_to_print.print_srcline)
- {
- strncat(ptr, ": ", len);
- len -= 2;
- ptr += 2;
- }
+ if (fd < 0) {
+ /* no where to send the output, give up */
+ return;
+ }
-/*
- loglevel_string[0] = 0;
- ptr = loglevel_string;
-*/
+ /* Initialise the Messages */
+ va_start(args, message);
+ len = vsnprintf(temp_buffer, MAXLOGSIZE -1, message, args);
+ va_end(args);
- if (what_to_print.print_errlevel)
- {
- if ((loglevel/10) >= (num_loglevel_chars-1))
- {
- sprintf(ptr, "%c%d", arr_loglevel_chars[num_loglevel_chars-1],
- loglevel/10);
+ /* Append \n */
+ if (len ==-1 || len >= MAXLOGSIZE -1) {
+ /* vsnprintf hit the buffer size*/
+ temp_buffer[MAXLOGSIZE-2] = '\n';
+ temp_buffer[MAXLOGSIZE-1] = 0;
}
- else
- {
- sprintf(ptr, "%c", arr_loglevel_chars[loglevel/10]);
+ else {
+ temp_buffer[len] = '\n';
+ temp_buffer[len+1] = 0;
}
- templen = strlen(ptr);
- len -= templen;
- ptr += templen;
- }
-
- if (what_to_print.print_errtype)
- {
- const char *logtype_string;
-
- /* get string represnetation of the Log Type */
- if (logtype<num_logtype_strings)
- logtype_string = arr_logtype_strings[logtype];
- else
- logtype_string = "";
-
- if (what_to_print.print_errlevel)
- {
- strncat(ptr, ":", len);
- ptr++;
+ if ( ! log_config.console) {
+ generate_message_details(log_details_buffer, sizeof(log_details_buffer),
+ file_configs[logtype].set ?
+ file_configs[logtype].display_options :
+ file_configs[logtype_default].display_options,
+ loglevel, logtype);
+
+ /* If default wasnt setup its fd is -1 */
+ iov[0].iov_base = log_details_buffer;
+ iov[0].iov_len = strlen(log_details_buffer);
+ iov[1].iov_base = temp_buffer;
+ iov[1].iov_len = strlen(temp_buffer);
+ writev( fd, iov, 2);
+ } else {
+ write(fd, temp_buffer, strlen(temp_buffer));
}
- sprintf(ptr, "%s", logtype_string);
- }
-
- message_details_buffer[message_details_buffer_length-1] = 0;
-
-#ifdef DEBUG_OUTPUT_TO_SCREEN
- printf("Message Details are %s\n", message_details_buffer);
-#endif
+ inlog = 0;
}
-#endif /* DISABLE_LOGGER */
-int get_syslog_equivalent(enum loglevels loglevel)
-{
- switch (loglevel/10)
- {
- /* The question is we know how bad it is for us,
- but how should that translate in the syslogs? */
- case 0: /* severe */
- return LOG_ERR;
- case 1: /* error */
- return LOG_ERR;
- case 2: /* warning */
- return LOG_WARNING;
- case 3: /* note */
- return LOG_NOTICE;
- case 4: /* information */
- return LOG_INFO;
- default: /* debug */
- return LOG_DEBUG;
- }
-}
-void setuplog(char *logsource, char *logtype, char *loglevel, char *filename)
+void setuplog(const char *logstr)
{
- /* -setuplogtype <syslog|filelog> <logtype> <loglevel>*/
- const char* sources[] = {"syslog", "filelog"};
- char sourcebuf[64], typebuf[64], levelbuf[32], *ptr;
- int sourcenum, typenum, levelnum;
-
- ptr = strpbrk(logsource, " \t");
- strncpy(sourcebuf, logsource, ptr-logsource);
- sourcebuf[ptr-logsource]=0;
-
- ptr = strpbrk(logtype, " \t");
- strncpy(typebuf, logtype, ptr-logtype);
- typebuf[ptr-logtype]=0;
-
- ptr = strpbrk(loglevel, " \t");
- strncpy(levelbuf, loglevel, ptr-loglevel);
- levelbuf[ptr-loglevel]=0;
-
- for(sourcenum=0;sourcenum<NUMOF(sources);sourcenum++)
- {
- if (strcasecmp(sourcebuf, sources[sourcenum])==0)
- break;
- }
-
- for(typenum=0;typenum<num_logtype_strings;typenum++)
- {
- if (strcasecmp(typebuf, arr_logtype_strings[typenum])==0)
- break;
- }
-
- for(levelnum=0;levelnum<num_loglevel_strings;levelnum++)
- {
- if (strcasecmp(levelbuf, arr_loglevel_strings[levelnum])==0)
- break;
- }
-
-/*
- for(logtype=logtype_default;logtype<logtype_end_of_list_marker;logtype++)
- {
- if (strcasecmp(buffer,
-
-
-
+ char *ptr, *ptrbak, *logtype, *loglevel = NULL, *filename = NULL;
+ ptr = strdup(logstr);
+ ptrbak = ptr;
+
+ /* logtype */
+ logtype = ptr;
+
+ /* get loglevel */
+ ptr = strpbrk(ptr, " \t");
+ if (ptr) {
+ *ptr++ = 0;
+ while (*ptr && isspace(*ptr))
+ ptr++;
+ loglevel = ptr;
+
+ /* get filename */
+ ptr = strpbrk(ptr, " \t");
+ if (ptr) {
+ *ptr++ = 0;
+ while (*ptr && isspace(*ptr))
+ ptr++;
+ }
+ filename = ptr;
+ if (filename && *filename == 0)
+ filename = NULL;
+ }
+ /* finally call setuplog, filename can be NULL */
+ setuplog_internal(loglevel, logtype, filename);
- if ((c = getoption(buf, "-setuplogtype")))
- {
- int logsource, logtype;
- char buffer[64], *ptr;
-
- ptr = strpbrk(c, " \t");
- strncpy(buffer, c, ptr-c);
- buffer[ptr-c]=0;
-
- if (strcasecmp(buffer, "syslog")==0)
- logsource=1;
- else if (strcasecmp(buffer, "filelog")==0)
- logsource=2;
- else
- logsource=0;
-
- if (logsource>0)
- {
- opt = strpbrk(c, " \t");
- while (opt ** isspace(*opt))
- opt++;
-
- ptr = strpbrk(opt, " \t");
- strncpy(buffer, opt, ptr-opt);
- buffer[ptr-opt]=0;
-
- for(logtype=logtype_default;
- logtype<logtype_end_of_list_marker;
- logtype++)
- {
- if (strcasecmp(buffer,
-
-
- buf = strpbrk(buf, " \t");
-
- while (buf && isspace(*buf))
- buf++;
-
- if (opt = getoption(c, "syslog"))
- {
- }
- else if (opt = getoption(c, "filelog"))
- {
- }
- }
-*/
+ free(ptrbak);
}
+void unsetuplog(const char *logstr)
+{
+ char *str, *logtype, *filename;
+ str = strdup(logstr);
+ /* logtype */
+ logtype = str;
+ /* get filename, can be NULL */
+ strtok(str, " \t");
+ filename = strtok(NULL, " \t");
+ /* finally call setuplog, filename can be NULL */
+ setuplog_internal(NULL, str, filename);
-
+ free(str);
+}
projects / netatalk.git / blobdiff