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Diffstat (limited to 'lib/util/debug.c')
| -rw-r--r-- | lib/util/debug.c | 1059 |
1 files changed, 1059 insertions, 0 deletions
diff --git a/lib/util/debug.c b/lib/util/debug.c new file mode 100644 index 0000000000..d2f3d922ae --- /dev/null +++ b/lib/util/debug.c @@ -0,0 +1,1059 @@ +/* + Unix SMB/CIFS implementation. + Samba utility functions + Copyright (C) Andrew Tridgell 1992-1998 + Copyright (C) Elrond 2002 + Copyright (C) Simo Sorce 2002 + + 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 3 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, see <http://www.gnu.org/licenses/>. +*/ + +#include "includes.h" +#include "system/filesys.h" +#include "system/syslog.h" +#include "lib/util/time.h" + +/* define what facility to use for syslog */ +#ifndef SYSLOG_FACILITY +#define SYSLOG_FACILITY LOG_DAEMON +#endif + +/* -------------------------------------------------------------------------- ** + * Defines... + * + * FORMAT_BUFR_MAX - Index of the last byte of the format buffer; + * format_bufr[FORMAT_BUFR_MAX] should always be reserved + * for a terminating null byte. + */ + +#define FORMAT_BUFR_SIZE 1024 +#define FORMAT_BUFR_MAX (FORMAT_BUFR_SIZE - 1) + +/* -------------------------------------------------------------------------- ** + * This module implements Samba's debugging utility. + * + * The syntax of a debugging log file is represented as: + * + * <debugfile> :== { <debugmsg> } + * + * <debugmsg> :== <debughdr> '\n' <debugtext> + * + * <debughdr> :== '[' TIME ',' LEVEL ']' [ [FILENAME ':'] [FUNCTION '()'] ] + * + * <debugtext> :== { <debugline> } + * + * <debugline> :== TEXT '\n' + * + * TEXT is a string of characters excluding the newline character. + * LEVEL is the DEBUG level of the message (an integer in the range 0..10). + * TIME is a timestamp. + * FILENAME is the name of the file from which the debug message was generated. + * FUNCTION is the function from which the debug message was generated. + * + * Basically, what that all means is: + * + * - A debugging log file is made up of debug messages. + * + * - Each debug message is made up of a header and text. The header is + * separated from the text by a newline. + * + * - The header begins with the timestamp and debug level of the message + * enclosed in brackets. The filename and function from which the + * message was generated may follow. The filename is terminated by a + * colon, and the function name is terminated by parenthesis. + * + * - The message text is made up of zero or more lines, each terminated by + * a newline. + */ + +/* state variables for the debug system */ +static struct { + bool initialized; + int fd; /* The log file handle */ + enum debug_logtype logtype; /* The type of logging we are doing: eg stdout, file, stderr */ + const char *prog_name; + bool reopening_logs; + bool schedule_reopen_logs; + + struct debug_settings settings; + char *debugf; +} state = { + .settings = { + .timestamp_logs = true + } +}; + +/* -------------------------------------------------------------------------- ** + * External variables. + * + * debugf - Debug file name. + * DEBUGLEVEL - System-wide debug message limit. Messages with message- + * levels higher than DEBUGLEVEL will not be processed. + */ + +/* + used to check if the user specified a + logfile on the command line +*/ +bool override_logfile; + +/* + * This is to allow reading of DEBUGLEVEL_CLASS before the debug + * system has been initialized. + */ +static const int debug_class_list_initial[DBGC_MAX_FIXED + 1]; + +static int debug_num_classes = 0; +int *DEBUGLEVEL_CLASS = discard_const_p(int, debug_class_list_initial); + + +/* -------------------------------------------------------------------------- ** + * Internal variables. + * + * debug_count - Number of debug messages that have been output. + * Used to check log size. + * + * syslog_level - Internal copy of the message debug level. Written by + * dbghdr() and read by Debug1(). + * + * format_bufr - Used to format debug messages. The dbgtext() function + * prints debug messages to a string, and then passes the + * string to format_debug_text(), which uses format_bufr + * to build the formatted output. + * + * format_pos - Marks the first free byte of the format_bufr. + * + * + * log_overflow - When this variable is true, never attempt to check the + * size of the log. This is a hack, so that we can write + * a message using DEBUG, from open_logs() when we + * are unable to open a new log file for some reason. + */ + +static int debug_count = 0; +#ifdef WITH_SYSLOG +static int syslog_level = 0; +#endif +static char *format_bufr = NULL; +static size_t format_pos = 0; +static bool log_overflow = false; + +/* + * Define all the debug class selection names here. Names *MUST NOT* contain + * white space. There must be one name for each DBGC_<class name>, and they + * must be in the table in the order of DBGC_<class name>.. + */ +static const char *default_classname_table[] = { + "all", /* DBGC_ALL; index refs traditional DEBUGLEVEL */ + "tdb", /* DBGC_TDB */ + "printdrivers", /* DBGC_PRINTDRIVERS */ + "lanman", /* DBGC_LANMAN */ + "smb", /* DBGC_SMB */ + "rpc_parse", /* DBGC_RPC_PARSE */ + "rpc_srv", /* DBGC_RPC_SRV */ + "rpc_cli", /* DBGC_RPC_CLI */ + "passdb", /* DBGC_PASSDB */ + "sam", /* DBGC_SAM */ + "auth", /* DBGC_AUTH */ + "winbind", /* DBGC_WINBIND */ + "vfs", /* DBGC_VFS */ + "idmap", /* DBGC_IDMAP */ + "quota", /* DBGC_QUOTA */ + "acls", /* DBGC_ACLS */ + "locking", /* DBGC_LOCKING */ + "msdfs", /* DBGC_MSDFS */ + "dmapi", /* DBGC_DMAPI */ + "registry", /* DBGC_REGISTRY */ + NULL +}; + +static char **classname_table = NULL; + + +/* -------------------------------------------------------------------------- ** + * Functions... + */ + +static void debug_init(void); + +/*************************************************************************** + Free memory pointed to by global pointers. +****************************************************************************/ + +void gfree_debugsyms(void) +{ + TALLOC_FREE(classname_table); + + if ( DEBUGLEVEL_CLASS != debug_class_list_initial ) { + TALLOC_FREE( DEBUGLEVEL_CLASS ); + DEBUGLEVEL_CLASS = discard_const_p(int, debug_class_list_initial); + } + + TALLOC_FREE(format_bufr); + + debug_num_classes = DBGC_MAX_FIXED; + + state.initialized = false; +} + +/**************************************************************************** +utility lists registered debug class names's +****************************************************************************/ + +char *debug_list_class_names_and_levels(void) +{ + char *buf = NULL; + unsigned int i; + /* prepare strings */ + for (i = 0; i < debug_num_classes; i++) { + buf = talloc_asprintf_append(buf, + "%s:%d%s", + classname_table[i], + DEBUGLEVEL_CLASS[i], + i == (debug_num_classes - 1) ? "\n" : " "); + if (buf == NULL) { + return NULL; + } + } + return buf; +} + +/**************************************************************************** + Utility to translate names to debug class index's (internal version). +****************************************************************************/ + +static int debug_lookup_classname_int(const char* classname) +{ + int i; + + if (!classname) return -1; + + for (i=0; i < debug_num_classes; i++) { + if (strcmp(classname, classname_table[i])==0) + return i; + } + return -1; +} + +/**************************************************************************** + Add a new debug class to the system. +****************************************************************************/ + +int debug_add_class(const char *classname) +{ + int ndx; + int *new_class_list; + char **new_name_list; + + if (!classname) + return -1; + + /* check the init has yet been called */ + debug_init(); + + ndx = debug_lookup_classname_int(classname); + if (ndx >= 0) + return ndx; + ndx = debug_num_classes; + + if (DEBUGLEVEL_CLASS == debug_class_list_initial) { + /* Initial loading... */ + new_class_list = NULL; + } else { + new_class_list = DEBUGLEVEL_CLASS; + } + + new_class_list = talloc_realloc(NULL, new_class_list, int, ndx + 1); + if (!new_class_list) + return -1; + DEBUGLEVEL_CLASS = new_class_list; + + DEBUGLEVEL_CLASS[ndx] = DEBUGLEVEL_CLASS[DBGC_ALL]; + + new_name_list = talloc_realloc(NULL, classname_table, char *, ndx + 1); + if (!new_name_list) + return -1; + classname_table = new_name_list; + + classname_table[ndx] = talloc_strdup(classname_table, classname); + if (! classname_table[ndx]) + return -1; + + debug_num_classes = ndx + 1; + + return ndx; +} + +/**************************************************************************** + Utility to translate names to debug class index's (public version). +****************************************************************************/ + +int debug_lookup_classname(const char *classname) +{ + int ndx; + + if (!classname || !*classname) + return -1; + + ndx = debug_lookup_classname_int(classname); + + if (ndx != -1) + return ndx; + + DEBUG(0, ("debug_lookup_classname(%s): Unknown class\n", + classname)); + return debug_add_class(classname); +} + +/**************************************************************************** + Dump the current registered debug levels. +****************************************************************************/ + +static void debug_dump_status(int level) +{ + int q; + + DEBUG(level, ("INFO: Current debug levels:\n")); + for (q = 0; q < debug_num_classes; q++) { + const char *classname = classname_table[q]; + DEBUGADD(level, (" %s: %d\n", + classname, + DEBUGLEVEL_CLASS[q])); + } +} + +/**************************************************************************** + parse the debug levels from smbcontrol. Example debug level parameter: + printdrivers:7 +****************************************************************************/ + +static bool debug_parse_params(char **params) +{ + int i, ndx; + char *class_name; + char *class_level; + + if (!params) + return false; + + /* Allow DBGC_ALL to be specified w/o requiring its class name e.g."10" + * v.s. "all:10", this is the traditional way to set DEBUGLEVEL + */ + if (isdigit((int)params[0][0])) { + DEBUGLEVEL_CLASS[DBGC_ALL] = atoi(params[0]); + i = 1; /* start processing at the next params */ + } else { + DEBUGLEVEL_CLASS[DBGC_ALL] = 0; + i = 0; /* DBGC_ALL not specified OR class name was included */ + } + + /* Array is debug_num_classes long */ + for (ndx = DBGC_ALL; ndx < debug_num_classes; ndx++) { + DEBUGLEVEL_CLASS[ndx] = DEBUGLEVEL_CLASS[DBGC_ALL]; + } + + /* Fill in new debug class levels */ + for (; i < debug_num_classes && params[i]; i++) { + char *saveptr; + if ((class_name = strtok_r(params[i],":", &saveptr)) && + (class_level = strtok_r(NULL, "\0", &saveptr)) && + ((ndx = debug_lookup_classname(class_name)) != -1)) { + DEBUGLEVEL_CLASS[ndx] = atoi(class_level); + } else { + DEBUG(0,("debug_parse_params: unrecognized debug class name or format [%s]\n", params[i])); + return false; + } + } + + return true; +} + +/**************************************************************************** + Parse the debug levels from smb.conf. Example debug level string: + 3 tdb:5 printdrivers:7 + Note: the 1st param has no "name:" preceeding it. +****************************************************************************/ + +bool debug_parse_levels(const char *params_str) +{ + char **params; + + /* Just in case */ + debug_init(); + + params = str_list_make(NULL, params_str, NULL); + + if (debug_parse_params(params)) { + debug_dump_status(5); + TALLOC_FREE(params); + return true; + } else { + TALLOC_FREE(params); + return false; + } +} + +/* setup for logging of talloc warnings */ +static void talloc_log_fn(const char *msg) +{ + DEBUG(0,("%s", msg)); +} + +void debug_setup_talloc_log(void) +{ + talloc_set_log_fn(talloc_log_fn); +} + + +/**************************************************************************** +Init debugging (one time stuff) +****************************************************************************/ + +static void debug_init(void) +{ + const char **p; + + if (state.initialized) + return; + + state.initialized = true; + + debug_setup_talloc_log(); + + for(p = default_classname_table; *p; p++) { + debug_add_class(*p); + } + format_bufr = talloc_array(NULL, char, FORMAT_BUFR_SIZE); + if (!format_bufr) { + smb_panic("debug_init: unable to create buffer"); + } +} + +/* This forces in some smb.conf derived values into the debug system. + * There are no pointers in this structure, so we can just + * structure-assign it in */ +void debug_set_settings(struct debug_settings *settings) +{ + state.settings = *settings; +} + +/** + control the name of the logfile and whether logging will be to stdout, stderr + or a file, and set up syslog + + new_log indicates the destination for the debug log (an enum in + order of precedence - once set to DEBUG_FILE, it is not possible to + reset to DEBUG_STDOUT for example. This makes it easy to override + for debug to stderr on the command line, as the smb.conf cannot + reset it back to file-based logging +*/ +void setup_logging(const char *prog_name, enum debug_logtype new_logtype) +{ + debug_init(); + if (state.logtype < new_logtype) { + state.logtype = new_logtype; + } + if (prog_name) { + state.prog_name = prog_name; + } + reopen_logs_internal(); + + if (state.logtype == DEBUG_FILE) { +#ifdef WITH_SYSLOG + const char *p = strrchr_m( prog_name,'/' ); + if (p) + prog_name = p + 1; +#ifdef LOG_DAEMON + openlog( prog_name, LOG_PID, SYSLOG_FACILITY ); +#else + /* for old systems that have no facility codes. */ + openlog( prog_name, LOG_PID ); +#endif +#endif + } +} + +/*************************************************************************** + Set the logfile name. +**************************************************************************/ + +void debug_set_logfile(const char *name) +{ + TALLOC_FREE(state.debugf); + state.debugf = talloc_strdup(NULL, name); +} + +static void debug_close_fd(int fd) +{ + if (fd > 2) { + close(fd); + } +} + +bool debug_get_output_is_stderr(void) +{ + return (state.logtype == DEBUG_DEFAULT_STDERR) || (state.logtype == DEBUG_STDERR); +} + +/************************************************************************** + reopen the log files + note that we now do this unconditionally + We attempt to open the new debug fp before closing the old. This means + if we run out of fd's we just keep using the old fd rather than aborting. + Fix from dgibson@linuxcare.com. +**************************************************************************/ + +/** + reopen the log file (usually called because the log file name might have changed) +*/ +bool reopen_logs_internal(void) +{ + mode_t oldumask; + int new_fd = 0; + int old_fd = 0; + bool ret = true; + + char *fname = NULL; + if (state.reopening_logs) { + return true; + } + + /* Now clear the SIGHUP induced flag */ + state.schedule_reopen_logs = false; + + switch (state.logtype) { + case DEBUG_STDOUT: + debug_close_fd(state.fd); + state.fd = 1; + return true; + + case DEBUG_DEFAULT_STDERR: + case DEBUG_STDERR: + debug_close_fd(state.fd); + state.fd = 2; + return true; + + case DEBUG_FILE: + break; + } + + oldumask = umask( 022 ); + + fname = state.debugf; + if (!fname) { + return false; + } + + state.reopening_logs = true; + + new_fd = open( state.debugf, O_WRONLY|O_APPEND|O_CREAT, 0644); + + if (new_fd == -1) { + log_overflow = true; + DEBUG(0, ("Unable to open new log file %s: %s\n", state.debugf, strerror(errno))); + log_overflow = false; + ret = false; + } else { + old_fd = state.fd; + state.fd = new_fd; + debug_close_fd(old_fd); + } + + /* Fix from klausr@ITAP.Physik.Uni-Stuttgart.De + * to fix problem where smbd's that generate less + * than 100 messages keep growing the log. + */ + force_check_log_size(); + (void)umask(oldumask); + + /* Take over stderr to catch output into logs */ + if (state.fd > 0 && dup2(state.fd, 2) == -1) { + close_low_fds(true); /* Close stderr too, if dup2 can't point it + at the logfile */ + } + + state.reopening_logs = false; + + return ret; +} + +/************************************************************************** + Force a check of the log size. + ***************************************************************************/ + +void force_check_log_size( void ) +{ + debug_count = 100; +} + +_PUBLIC_ void debug_schedule_reopen_logs(void) +{ + state.schedule_reopen_logs = true; +} + + +/*************************************************************************** + Check to see if there is any need to check if the logfile has grown too big. +**************************************************************************/ + +bool need_to_check_log_size( void ) +{ + int maxlog; + + if( debug_count < 100) + return( false ); + + maxlog = state.settings.max_log_size * 1024; + if ( state.fd <=2 || maxlog <= 0 ) { + debug_count = 0; + return(false); + } + return( true ); +} + +/************************************************************************** + Check to see if the log has grown to be too big. + **************************************************************************/ + +void check_log_size( void ) +{ + int maxlog; + struct stat st; + + /* + * We need to be root to check/change log-file, skip this and let the main + * loop check do a new check as root. + */ + + if( geteuid() != 0) { + /* We don't check sec_initial_uid() here as it isn't + * available in common code and we don't generally + * want to rotate and the possibly lose logs in + * make test or the build farm */ + return; + } + + if(log_overflow || (!state.schedule_reopen_logs && !need_to_check_log_size())) { + return; + } + + maxlog = state.settings.max_log_size * 1024; + + if (state.schedule_reopen_logs || + (fstat(state.fd, &st) == 0 + && st.st_size > maxlog )) { + (void)reopen_logs_internal(); + if (state.fd > 0 && fstat(state.fd, &st) == 0) { + if (st.st_size > maxlog) { + char *name = NULL; + + if (asprintf(&name, "%s.old", state.debugf ) < 0) { + return; + } + (void)rename(state.debugf, name); + + if (!reopen_logs_internal()) { + /* We failed to reopen a log - continue using the old name. */ + (void)rename(name, state.debugf); + } + SAFE_FREE(name); + } + } + } + + /* + * Here's where we need to panic if state.fd == 0 or -1 (invalid values) + */ + + if (state.fd <= 0) { + /* This code should only be reached in very strange + * circumstances. If we merely fail to open the new log we + * should stick with the old one. ergo this should only be + * reached when opening the logs for the first time: at + * startup or when the log level is increased from zero. + * -dwg 6 June 2000 + */ + int fd = open( "/dev/console", O_WRONLY, 0); + if (fd != -1) { + state.fd = fd; + DEBUG(0,("check_log_size: open of debug file %s failed - using console.\n", + state.debugf )); + } else { + /* + * We cannot continue without a debug file handle. + */ + abort(); + } + } + debug_count = 0; +} + +/************************************************************************* + Write an debug message on the debugfile. + This is called by dbghdr() and format_debug_text(). +************************************************************************/ + + int Debug1( const char *format_str, ... ) +{ + va_list ap; + int old_errno = errno; + + debug_count++; + + if ( state.logtype != DEBUG_FILE ) { + va_start( ap, format_str ); + if (state.fd > 0) + (void)vdprintf( state.fd, format_str, ap ); + va_end( ap ); + errno = old_errno; + goto done; + } + +#ifdef WITH_SYSLOG + if( !state.settings.syslog_only) +#endif + { + if( state.fd <= 0 ) { + mode_t oldumask = umask( 022 ); + int fd = open( state.debugf, O_WRONLY|O_APPEND|O_CREAT, 0644 ); + (void)umask( oldumask ); + if(fd == -1) { + errno = old_errno; + goto done; + } + state.fd = fd; + } + } + +#ifdef WITH_SYSLOG + if( syslog_level < state.settings.syslog ) { + /* map debug levels to syslog() priorities + * note that not all DEBUG(0, ...) calls are + * necessarily errors */ + static const int priority_map[4] = { + LOG_ERR, /* 0 */ + LOG_WARNING, /* 1 */ + LOG_NOTICE, /* 2 */ + LOG_INFO, /* 3 */ + }; + int priority; + char *msgbuf = NULL; + int ret; + + if( syslog_level >= ARRAY_SIZE(priority_map) || syslog_level < 0) + priority = LOG_DEBUG; + else + priority = priority_map[syslog_level]; + + /* + * Specify the facility to interoperate with other syslog + * callers (vfs_full_audit for example). + */ + priority |= SYSLOG_FACILITY; + + va_start(ap, format_str); + ret = vasprintf(&msgbuf, format_str, ap); + va_end(ap); + + if (ret != -1) { + syslog(priority, "%s", msgbuf); + } + SAFE_FREE(msgbuf); + } +#endif + + check_log_size(); + +#ifdef WITH_SYSLOG + if( !state.settings.syslog_only) +#endif + { + va_start( ap, format_str ); + if (state.fd > 0) + (void)vdprintf( state.fd, format_str, ap ); + va_end( ap ); + } + + done: + errno = old_errno; + + return( 0 ); +} + + +/************************************************************************** + Print the buffer content via Debug1(), then reset the buffer. + Input: none + Output: none +****************************************************************************/ + +static void bufr_print( void ) +{ + format_bufr[format_pos] = '\0'; + (void)Debug1( "%s", format_bufr ); + format_pos = 0; +} + +/*************************************************************************** + Format the debug message text. + + Input: msg - Text to be added to the "current" debug message text. + + Output: none. + + Notes: The purpose of this is two-fold. First, each call to syslog() + (used by Debug1(), see above) generates a new line of syslog + output. This is fixed by storing the partial lines until the + newline character is encountered. Second, printing the debug + message lines when a newline is encountered allows us to add + spaces, thus indenting the body of the message and making it + more readable. +**************************************************************************/ + +static void format_debug_text( const char *msg ) +{ + size_t i; + bool timestamp = (state.logtype == DEBUG_FILE && (state.settings.timestamp_logs)); + + if (!format_bufr) { + debug_init(); + } + + for( i = 0; msg[i]; i++ ) { + /* Indent two spaces at each new line. */ + if(timestamp && 0 == format_pos) { + format_bufr[0] = format_bufr[1] = ' '; + format_pos = 2; + } + + /* If there's room, copy the character to the format buffer. */ + if( format_pos < FORMAT_BUFR_MAX ) + format_bufr[format_pos++] = msg[i]; + + /* If a newline is encountered, print & restart. */ + if( '\n' == msg[i] ) + bufr_print(); + + /* If the buffer is full dump it out, reset it, and put out a line + * continuation indicator. + */ + if( format_pos >= FORMAT_BUFR_MAX ) { + bufr_print(); + (void)Debug1( " +>\n" ); + } + } + + /* Just to be safe... */ + format_bufr[format_pos] = '\0'; +} + +/*************************************************************************** + Flush debug output, including the format buffer content. + + Input: none + Output: none +***************************************************************************/ + +void dbgflush( void ) +{ + bufr_print(); +} + +/*************************************************************************** + Print a Debug Header. + + Input: level - Debug level of the message (not the system-wide debug + level. ) + cls - Debuglevel class of the calling module. + file - Pointer to a string containing the name of the file + from which this function was called, or an empty string + if the __FILE__ macro is not implemented. + func - Pointer to a string containing the name of the function + from which this function was called, or an empty string + if the __FUNCTION__ macro is not implemented. + line - line number of the call to dbghdr, assuming __LINE__ + works. + + Output: Always true. This makes it easy to fudge a call to dbghdr() + in a macro, since the function can be called as part of a test. + Eg: ( (level <= DEBUGLEVEL) && (dbghdr(level,"",line)) ) + + Notes: This function takes care of setting syslog_level. + +****************************************************************************/ + +bool dbghdrclass(int level, int cls, const char *location, const char *func) +{ + /* Ensure we don't lose any real errno value. */ + int old_errno = errno; + + if( format_pos ) { + /* This is a fudge. If there is stuff sitting in the format_bufr, then + * the *right* thing to do is to call + * format_debug_text( "\n" ); + * to write the remainder, and then proceed with the new header. + * Unfortunately, there are several places in the code at which + * the DEBUG() macro is used to build partial lines. That in mind, + * we'll work under the assumption that an incomplete line indicates + * that a new header is *not* desired. + */ + return( true ); + } + +#ifdef WITH_SYSLOG + /* Set syslog_level. */ + syslog_level = level; +#endif + + /* Don't print a header if we're logging to stdout. */ + if ( state.logtype != DEBUG_FILE ) { + return( true ); + } + + /* Print the header if timestamps are turned on. If parameters are + * not yet loaded, then default to timestamps on. + */ + if( state.settings.timestamp_logs || state.settings.debug_prefix_timestamp) { + char header_str[200]; + + header_str[0] = '\0'; + + if( state.settings.debug_pid) + slprintf(header_str,sizeof(header_str)-1,", pid=%u",(unsigned int)getpid()); + + if( state.settings.debug_uid) { + size_t hs_len = strlen(header_str); + slprintf(header_str + hs_len, + sizeof(header_str) - 1 - hs_len, + ", effective(%u, %u), real(%u, %u)", + (unsigned int)geteuid(), (unsigned int)getegid(), + (unsigned int)getuid(), (unsigned int)getgid()); + } + + if (state.settings.debug_class && (cls != DBGC_ALL)) { + size_t hs_len = strlen(header_str); + slprintf(header_str + hs_len, + sizeof(header_str) -1 - hs_len, + ", class=%s", + default_classname_table[cls]); + } + + /* Print it all out at once to prevent split syslog output. */ + if( state.settings.debug_prefix_timestamp ) { + char *time_str = current_timestring(NULL, + state.settings.debug_hires_timestamp); + (void)Debug1( "[%s, %2d%s] ", + time_str, + level, header_str); + talloc_free(time_str); + } else { + char *time_str = current_timestring(NULL, + state.settings.debug_hires_timestamp); + (void)Debug1( "[%s, %2d%s] %s(%s)\n", + time_str, + level, header_str, location, func ); + talloc_free(time_str); + } + } + + errno = old_errno; + return( true ); +} + +/*************************************************************************** + Add text to the body of the "current" debug message via the format buffer. + + Input: format_str - Format string, as used in printf(), et. al. + ... - Variable argument list. + + ..or.. va_alist - Old style variable parameter list starting point. + + Output: Always true. See dbghdr() for more info, though this is not + likely to be used in the same way. + +***************************************************************************/ + + bool dbgtext( const char *format_str, ... ) +{ + va_list ap; + char *msgbuf = NULL; + bool ret = true; + int res; + + va_start(ap, format_str); + res = vasprintf(&msgbuf, format_str, ap); + va_end(ap); + + if (res != -1) { + format_debug_text(msgbuf); + } else { + ret = false; + } + SAFE_FREE(msgbuf); + return ret; +} + + +/* the registered mutex handlers */ +static struct { + const char *name; + struct debug_ops ops; +} debug_handlers; + +/** + log suspicious usage - print comments and backtrace +*/ +_PUBLIC_ void log_suspicious_usage(const char *from, const char *info) +{ + if (!debug_handlers.ops.log_suspicious_usage) return; + + debug_handlers.ops.log_suspicious_usage(from, info); +} + + +/** + print suspicious usage - print comments and backtrace +*/ +_PUBLIC_ void print_suspicious_usage(const char* from, const char* info) +{ + if (!debug_handlers.ops.print_suspicious_usage) return; + + debug_handlers.ops.print_suspicious_usage(from, info); +} + +_PUBLIC_ uint32_t get_task_id(void) +{ + if (debug_handlers.ops.get_task_id) { + return debug_handlers.ops.get_task_id(); + } + return getpid(); +} + +_PUBLIC_ void log_task_id(void) +{ + if (!debug_handlers.ops.log_task_id) return; + + if (!reopen_logs_internal()) return; + + debug_handlers.ops.log_task_id(state.fd); +} + +/** + register a set of debug handlers. +*/ +_PUBLIC_ void register_debug_handlers(const char *name, struct debug_ops *ops) +{ + debug_handlers.name = name; + debug_handlers.ops = *ops; +} |