/
errlog.c
1170 lines (1069 loc) · 35.1 KB
/
errlog.c
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/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/errlog.c,v $
*
* Purpose : Log errors to a designated destination in an elegant,
* printf-like fashion.
*
* Copyright : Written by and Copyright (C) 2001-2014 the
* Privoxy team. http://www.privoxy.org/
*
* Based on the Internet Junkbuster originally written
* by and Copyright (C) 1997 Anonymous Coders and
* Junkbusters Corporation. http://www.junkbusters.com
*
* 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 2 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.
*
* The GNU General Public License should be included with
* this file. If not, you can view it at
* http://www.gnu.org/copyleft/gpl.html
* or write to the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*********************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include "config.h"
#include "miscutil.h"
/* For gettimeofday() */
#if defined (_WIN32) || defined(WIN32)
#include <time.h>
#else
#include <sys/time.h>
#endif
#if !defined(_WIN32) && !defined(__OS2__)
#include <unistd.h>
#endif /* !defined(_WIN32) && !defined(__OS2__) */
#include <errno.h>
#include <assert.h>
#ifdef _WIN32
#ifndef STRICT
#define STRICT
#endif
#include <windows.h>
#ifndef _WIN_CONSOLE
#include "w32log.h"
#endif /* ndef _WIN_CONSOLE */
#endif /* def _WIN32 */
#ifdef _MSC_VER
#define inline __inline
#endif /* def _MSC_VER */
#ifdef __OS2__
#include <sys/socket.h> /* For sock_errno */
#define INCL_DOS
#include <os2.h>
#endif
#include "errlog.h"
#include "project.h"
#include "jcc.h"
#ifdef FEATURE_EXTERNAL_FILTERS
#include "jbsockets.h"
#endif
/*
* LOG_LEVEL_FATAL cannot be turned off. (There are
* some exceptional situations where we need to get a
* message to the user).
*/
#define LOG_LEVEL_MINIMUM LOG_LEVEL_FATAL
/* where to log (default: stderr) */
static FILE *logfp = NULL;
/* logging detail level. XXX: stupid name. */
static int debug = (LOG_LEVEL_FATAL | LOG_LEVEL_ERROR | LOG_LEVEL_INFO);
/* static functions */
static void fatal_error(const char * error_message);
#ifdef _WIN32
static char *w32_socket_strerr(int errcode, char *tmp_buf);
#endif
#ifdef __OS2__
static char *os2_socket_strerr(int errcode, char *tmp_buf);
#endif
#ifdef MUTEX_LOCKS_AVAILABLE
static inline void lock_logfile(void)
{
privoxy_mutex_lock(&log_mutex);
}
static inline void unlock_logfile(void)
{
privoxy_mutex_unlock(&log_mutex);
}
static inline void lock_loginit(void)
{
privoxy_mutex_lock(&log_init_mutex);
}
static inline void unlock_loginit(void)
{
privoxy_mutex_unlock(&log_init_mutex);
}
#else /* ! MUTEX_LOCKS_AVAILABLE */
/*
* FIXME we need a cross-platform locking mechanism.
* The locking/unlocking functions below should be
* fleshed out for non-pthread implementations.
*/
static inline void lock_logfile() {}
static inline void unlock_logfile() {}
static inline void lock_loginit() {}
static inline void unlock_loginit() {}
#endif
/*********************************************************************
*
* Function : fatal_error
*
* Description : Displays a fatal error to standard error (or, on
* a WIN32 GUI, to a dialog box), and exits Privoxy
* with status code 1.
*
* Parameters :
* 1 : error_message = The error message to display.
*
* Returns : Does not return.
*
*********************************************************************/
static void fatal_error(const char *error_message)
{
if (logfp != NULL)
{
fputs(error_message, logfp);
}
#if defined(_WIN32) && !defined(_WIN_CONSOLE)
{
/* Skip timestamp and thread id for the message box. */
const char *box_message = strstr(error_message, "Fatal error");
if (NULL == box_message)
{
/* Shouldn't happen but ... */
box_message = error_message;
}
MessageBox(g_hwndLogFrame, box_message, "Privoxy Error",
MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_SETFOREGROUND | MB_TOPMOST);
/* Cleanup - remove taskbar icon etc. */
TermLogWindow();
}
#endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
#if defined(unix)
if (pidfile)
{
unlink(pidfile);
}
#endif /* unix */
exit(1);
}
/*********************************************************************
*
* Function : show_version
*
* Description : Logs the Privoxy version and the program name.
*
* Parameters :
* 1 : prog_name = The program name.
*
* Returns : Nothing.
*
*********************************************************************/
void show_version(const char *prog_name)
{
log_error(LOG_LEVEL_INFO, "Privoxy version " VERSION);
if (prog_name != NULL)
{
log_error(LOG_LEVEL_INFO, "Program name: %s", prog_name);
}
}
/*********************************************************************
*
* Function : init_log_module
*
* Description : Initializes the logging module to log to stderr.
* Can only be called while stderr hasn't been closed
* yet and is only supposed to be called once.
*
* Parameters :
* 1 : prog_name = The program name.
*
* Returns : Nothing.
*
*********************************************************************/
void init_log_module(void)
{
lock_logfile();
logfp = stderr;
unlock_logfile();
set_debug_level(debug);
}
/*********************************************************************
*
* Function : set_debug_level
*
* Description : Sets the debug level to the provided value
* plus LOG_LEVEL_MINIMUM.
*
* XXX: we should only use the LOG_LEVEL_MINIMUM
* until the first time the configuration file has
* been parsed.
*
* Parameters : 1: debug_level = The debug level to set.
*
* Returns : Nothing.
*
*********************************************************************/
void set_debug_level(int debug_level)
{
#ifdef FUZZ
if (LOG_LEVEL_STFU == debug_level)
{
debug = LOG_LEVEL_STFU;
}
if (LOG_LEVEL_STFU == debug)
{
return;
}
#endif
debug = debug_level | LOG_LEVEL_MINIMUM;
}
/*********************************************************************
*
* Function : debug_level_is_enabled
*
* Description : Checks if a certain debug level is enabled.
*
* Parameters : 1: debug_level = The debug level to check.
*
* Returns : Nothing.
*
*********************************************************************/
int debug_level_is_enabled(int debug_level)
{
return (0 != (debug & debug_level));
}
/*********************************************************************
*
* Function : disable_logging
*
* Description : Disables logging.
*
* Parameters : None.
*
* Returns : Nothing.
*
*********************************************************************/
void disable_logging(void)
{
if (logfp != NULL)
{
log_error(LOG_LEVEL_INFO,
"No logfile configured. Please enable it before reporting any problems.");
lock_logfile();
fclose(logfp);
logfp = NULL;
unlock_logfile();
}
}
/*********************************************************************
*
* Function : init_error_log
*
* Description : Initializes the logging module to log to a file.
*
* XXX: should be renamed.
*
* Parameters :
* 1 : prog_name = The program name.
* 2 : logfname = The logfile to (re)open.
*
* Returns : N/A
*
*********************************************************************/
void init_error_log(const char *prog_name, const char *logfname)
{
FILE *fp;
assert(NULL != logfname);
lock_loginit();
if ((logfp != NULL) && (logfp != stderr))
{
log_error(LOG_LEVEL_INFO, "(Re-)Opening logfile \'%s\'", logfname);
}
/* set the designated log file */
fp = fopen(logfname, "a");
if ((NULL == fp) && (logfp != NULL))
{
/*
* Some platforms (like OS/2) don't allow us to open
* the same file twice, therefore we give it another
* shot after closing the old file descriptor first.
*
* We don't do it right away because it prevents us
* from logging the "can't open logfile" message to
* the old logfile.
*
* XXX: this is a lame workaround and once the next
* release is out we should stop bothering reopening
* the logfile unless we have to.
*
* Currently we reopen it every time the config file
* has been reloaded, but actually we only have to
* reopen it if the file name changed or if the
* configuration reload was caused by a SIGHUP.
*/
log_error(LOG_LEVEL_INFO, "Failed to reopen logfile: \'%s\'. "
"Retrying after closing the old file descriptor first. If that "
"doesn't work, Privoxy will exit without being able to log a message.",
logfname);
lock_logfile();
fclose(logfp);
logfp = NULL;
unlock_logfile();
fp = fopen(logfname, "a");
}
if (NULL == fp)
{
log_error(LOG_LEVEL_FATAL, "init_error_log(): can't open logfile: \'%s\'", logfname);
}
#ifdef FEATURE_EXTERNAL_FILTERS
mark_socket_for_close_on_execute(3);
#endif
/* set logging to be completely unbuffered */
setbuf(fp, NULL);
lock_logfile();
if (logfp != NULL)
{
fclose(logfp);
}
#ifdef unix
if (daemon_mode && (logfp == stderr))
{
if (dup2(1, 2) == -1)
{
/*
* We only use fatal_error() to clear the pid
* file and to exit. Given that stderr has just
* been closed, the user will not see the error
* message.
*/
fatal_error("Failed to reserve fd 2.");
}
}
#endif
logfp = fp;
unlock_logfile();
show_version(prog_name);
unlock_loginit();
} /* init_error_log */
/*********************************************************************
*
* Function : get_thread_id
*
* Description : Returns a number that is different for each thread.
*
* XXX: Should be moved elsewhere (miscutil.c?)
*
* Parameters : None
*
* Returns : thread_id
*
*********************************************************************/
static long get_thread_id(void)
{
long this_thread;
#ifdef __OS2__
PTIB ptib;
APIRET ulrc; /* XXX: I have no clue what this does */
#endif /* __OS2__ */
/* FIXME get current thread id */
#ifdef FEATURE_PTHREAD
this_thread = (long)pthread_self();
#ifdef __MACH__
/*
* Mac OSX (and perhaps other Mach instances) doesn't have a unique
* value at the lowest order 4 bytes of pthread_self()'s return value, a pthread_t,
* so trim the three lowest-order bytes from the value (16^3).
*/
this_thread = this_thread / 4096;
#endif /* def __MACH__ */
#elif defined(_WIN32)
this_thread = GetCurrentThreadId();
#elif defined(__OS2__)
ulrc = DosGetInfoBlocks(&ptib, NULL);
if (ulrc == 0)
this_thread = ptib -> tib_ptib2 -> tib2_ultid;
#else
/* Forking instead of threading. */
this_thread = 1;
#endif /* def FEATURE_PTHREAD */
return this_thread;
}
/*********************************************************************
*
* Function : get_log_timestamp
*
* Description : Generates the time stamp for the log message prefix.
*
* Parameters :
* 1 : buffer = Storage buffer
* 2 : buffer_size = Size of storage buffer
*
* Returns : Number of written characters or 0 for error.
*
*********************************************************************/
static inline size_t get_log_timestamp(char *buffer, size_t buffer_size)
{
size_t length;
time_t now;
struct tm tm_now;
struct timeval tv_now; /* XXX: stupid name */
long msecs;
int msecs_length = 0;
gettimeofday(&tv_now, NULL);
msecs = tv_now.tv_usec / 1000;
now = tv_now.tv_sec;
#ifdef HAVE_LOCALTIME_R
tm_now = *localtime_r(&now, &tm_now);
#elif defined(MUTEX_LOCKS_AVAILABLE)
privoxy_mutex_lock(&localtime_mutex);
tm_now = *localtime(&now);
privoxy_mutex_unlock(&localtime_mutex);
#else
tm_now = *localtime(&now);
#endif
length = strftime(buffer, buffer_size, "%Y-%m-%d %H:%M:%S", &tm_now);
if (length > (size_t)0)
{
msecs_length = snprintf(buffer+length, buffer_size - length, ".%.3ld", msecs);
}
if (msecs_length > 0)
{
length += (size_t)msecs_length;
}
else
{
length = 0;
}
return length;
}
/*********************************************************************
*
* Function : get_clf_timestamp
*
* Description : Generates a Common Log Format time string.
*
* Parameters :
* 1 : buffer = Storage buffer
* 2 : buffer_size = Size of storage buffer
*
* Returns : Number of written characters or 0 for error.
*
*********************************************************************/
static inline size_t get_clf_timestamp(char *buffer, size_t buffer_size)
{
/*
* Complex because not all OSs have tm_gmtoff or
* the %z field in strftime()
*/
time_t now;
struct tm *tm_now;
struct tm gmt;
#ifdef HAVE_LOCALTIME_R
struct tm dummy;
#endif
int days, hrs, mins;
size_t length;
int tz_length = 0;
time (&now);
#ifdef HAVE_GMTIME_R
gmt = *gmtime_r(&now, &gmt);
#elif defined(MUTEX_LOCKS_AVAILABLE)
privoxy_mutex_lock(&gmtime_mutex);
gmt = *gmtime(&now);
privoxy_mutex_unlock(&gmtime_mutex);
#else
gmt = *gmtime(&now);
#endif
#ifdef HAVE_LOCALTIME_R
tm_now = localtime_r(&now, &dummy);
#elif defined(MUTEX_LOCKS_AVAILABLE)
privoxy_mutex_lock(&localtime_mutex);
tm_now = localtime(&now);
privoxy_mutex_unlock(&localtime_mutex);
#else
tm_now = localtime(&now);
#endif
days = tm_now->tm_yday - gmt.tm_yday;
hrs = ((days < -1 ? 24 : 1 < days ? -24 : days * 24) + tm_now->tm_hour - gmt.tm_hour);
mins = hrs * 60 + tm_now->tm_min - gmt.tm_min;
length = strftime(buffer, buffer_size, "%d/%b/%Y:%H:%M:%S ", tm_now);
if (length > (size_t)0)
{
tz_length = snprintf(buffer+length, buffer_size-length,
"%+03d%02d", mins / 60, abs(mins) % 60);
}
if (tz_length > 0)
{
length += (size_t)tz_length;
}
else
{
length = 0;
}
return length;
}
/*********************************************************************
*
* Function : get_log_level_string
*
* Description : Translates a numerical loglevel into a string.
*
* Parameters :
* 1 : loglevel = LOG_LEVEL_FOO
*
* Returns : Log level string.
*
*********************************************************************/
static inline const char *get_log_level_string(int loglevel)
{
char *log_level_string = NULL;
assert(0 < loglevel);
switch (loglevel)
{
case LOG_LEVEL_ERROR:
log_level_string = "Error";
break;
case LOG_LEVEL_FATAL:
log_level_string = "Fatal error";
break;
case LOG_LEVEL_GPC:
log_level_string = "Request";
break;
case LOG_LEVEL_CONNECT:
log_level_string = "Connect";
break;
case LOG_LEVEL_WRITING:
log_level_string = "Writing";
break;
case LOG_LEVEL_RECEIVED:
log_level_string = "Received";
break;
case LOG_LEVEL_HEADER:
log_level_string = "Header";
break;
case LOG_LEVEL_INFO:
log_level_string = "Info";
break;
case LOG_LEVEL_RE_FILTER:
log_level_string = "Re-Filter";
break;
#ifdef FEATURE_FORCE_LOAD
case LOG_LEVEL_FORCE:
log_level_string = "Force";
break;
#endif /* def FEATURE_FORCE_LOAD */
case LOG_LEVEL_REDIRECTS:
log_level_string = "Redirect";
break;
case LOG_LEVEL_DEANIMATE:
log_level_string = "Gif-Deanimate";
break;
case LOG_LEVEL_CRUNCH:
log_level_string = "Crunch";
break;
case LOG_LEVEL_CGI:
log_level_string = "CGI";
break;
case LOG_LEVEL_ACTIONS:
log_level_string = "Actions";
break;
default:
log_level_string = "Unknown log level";
break;
}
assert(NULL != log_level_string);
return log_level_string;
}
#define LOG_BUFFER_SIZE BUFFER_SIZE
/*********************************************************************
*
* Function : log_error
*
* Description : This is the error-reporting and logging function.
*
* Parameters :
* 1 : loglevel = the type of message to be logged
* 2 : fmt = the main string we want logged, printf-like
* 3 : ... = arguments to be inserted in fmt (printf-like).
*
* Returns : N/A
*
*********************************************************************/
void log_error(int loglevel, const char *fmt, ...)
{
va_list ap;
char outbuf[LOG_BUFFER_SIZE+1];
char tempbuf[LOG_BUFFER_SIZE];
size_t length = 0;
const char * src = fmt;
long thread_id;
char timestamp[30];
const size_t log_buffer_size = LOG_BUFFER_SIZE;
#if defined(_WIN32) && !defined(_WIN_CONSOLE)
/*
* Irrespective of debug setting, a GET/POST/CONNECT makes
* the taskbar icon animate. (There is an option to disable
* this but checking that is handled inside LogShowActivity()).
*/
if ((loglevel == LOG_LEVEL_GPC) || (loglevel == LOG_LEVEL_CRUNCH))
{
LogShowActivity();
}
#endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
/*
* verify that the loglevel applies to current
* settings and that logging is enabled.
* Bail out otherwise.
*/
if ((0 == (loglevel & debug))
#ifndef _WIN32
|| (logfp == NULL)
#endif
)
{
#ifdef FUZZ
if (debug == LOG_LEVEL_STFU)
{
return;
}
#endif
if (loglevel == LOG_LEVEL_FATAL)
{
fatal_error("Fatal error. You're not supposed to"
"see this message. Please file a bug report.");
}
return;
}
thread_id = get_thread_id();
get_log_timestamp(timestamp, sizeof(timestamp));
/*
* Memsetting the whole buffer to zero (in theory)
* makes things easier later on.
*/
memset(outbuf, 0, sizeof(outbuf));
/* Add prefix for everything but Common Log Format messages */
if (loglevel != LOG_LEVEL_CLF)
{
length = (size_t)snprintf(outbuf, log_buffer_size, "%s %08lx %s: ",
timestamp, thread_id, get_log_level_string(loglevel));
}
/* get ready to scan var. args. */
va_start(ap, fmt);
/* build formatted message from fmt and var-args */
while ((*src) && (length < log_buffer_size-2))
{
const char *sval = NULL; /* %N string */
int ival; /* %N string length or an error code */
unsigned uval; /* %u value */
long lval; /* %l value */
unsigned long ulval; /* %ul value */
char ch;
const char *format_string = tempbuf;
ch = *src++;
if (ch != '%')
{
outbuf[length++] = ch;
/*
* XXX: Only necessary on platforms where multiple threads
* can write to the buffer at the same time because we
* don't support mutexes (OS/2 for example).
*/
outbuf[length] = '\0';
continue;
}
outbuf[length] = '\0';
ch = *src++;
switch (ch) {
case '%':
tempbuf[0] = '%';
tempbuf[1] = '\0';
break;
case 'd':
ival = va_arg(ap, int);
snprintf(tempbuf, sizeof(tempbuf), "%d", ival);
break;
case 'u':
uval = va_arg(ap, unsigned);
snprintf(tempbuf, sizeof(tempbuf), "%u", uval);
break;
case 'l':
/* this is a modifier that must be followed by u, lu, or d */
ch = *src++;
if (ch == 'd')
{
lval = va_arg(ap, long);
snprintf(tempbuf, sizeof(tempbuf), "%ld", lval);
}
else if (ch == 'u')
{
ulval = va_arg(ap, unsigned long);
snprintf(tempbuf, sizeof(tempbuf), "%lu", ulval);
}
else if ((ch == 'l') && (*src == 'u'))
{
unsigned long long lluval = va_arg(ap, unsigned long long);
snprintf(tempbuf, sizeof(tempbuf), "%llu", lluval);
src++;
}
else
{
snprintf(tempbuf, sizeof(tempbuf), "Bad format string: \"%s\"", fmt);
loglevel = LOG_LEVEL_FATAL;
}
break;
case 'c':
/*
* Note that char paramaters are converted to int, so we need to
* pass "int" to va_arg. (See K&R, 2nd ed, section A7.3.2, page 202)
*/
tempbuf[0] = (char) va_arg(ap, int);
tempbuf[1] = '\0';
break;
case 's':
format_string = va_arg(ap, char *);
if (format_string == NULL)
{
format_string = "[null]";
}
break;
case 'N':
/*
* Non-standard: Print a counted unterminated string,
* replacing unprintable bytes with their hex value.
* Takes 2 parameters: int length, const char * string.
*/
ival = va_arg(ap, int);
assert(ival >= 0);
sval = va_arg(ap, char *);
assert(sval != NULL);
while ((ival-- > 0) && (length < log_buffer_size - 6))
{
if (isprint((int)*sval) && (*sval != '\\'))
{
outbuf[length++] = *sval;
outbuf[length] = '\0';
}
else
{
int ret = snprintf(outbuf + length,
log_buffer_size - length - 2, "\\x%.2x", (unsigned char)*sval);
assert(ret == 4);
length += 4;
}
sval++;
}
/*
* XXX: In case of printable characters at the end of
* the %N string, we're not using the whole buffer.
*/
format_string = (length < log_buffer_size - 6) ? "" : "[too long]";
break;
case 'E':
/* Non-standard: Print error code from errno */
#ifdef _WIN32
ival = WSAGetLastError();
format_string = w32_socket_strerr(ival, tempbuf);
#elif __OS2__
ival = sock_errno();
if (ival != 0)
{
format_string = os2_socket_strerr(ival, tempbuf);
}
else
{
ival = errno;
format_string = strerror(ival);
}
#else /* ifndef _WIN32 */
ival = errno;
#ifdef HAVE_STRERROR
format_string = strerror(ival);
#else /* ifndef HAVE_STRERROR */
format_string = NULL;
#endif /* ndef HAVE_STRERROR */
if (sval == NULL)
{
snprintf(tempbuf, sizeof(tempbuf), "(errno = %d)", ival);
}
#endif /* ndef _WIN32 */
break;
case 'T':
/* Non-standard: Print a Common Log File timestamp */
get_clf_timestamp(tempbuf, sizeof(tempbuf));
break;
default:
snprintf(tempbuf, sizeof(tempbuf), "Bad format string: \"%s\"", fmt);
loglevel = LOG_LEVEL_FATAL;
break;
}
assert(length < log_buffer_size);
length += strlcpy(outbuf + length, format_string, log_buffer_size - length);
if (length >= log_buffer_size-2)
{
static const char warning[] = "... [too long, truncated]";
length = log_buffer_size - sizeof(warning) - 1;
length += strlcpy(outbuf + length, warning, log_buffer_size - length);
assert(length < log_buffer_size);
break;
}
}
/* done with var. args */
va_end(ap);
assert(length < log_buffer_size);
length += strlcpy(outbuf + length, "\n", log_buffer_size - length);
/* Some sanity checks */
if ((length >= log_buffer_size)
|| (outbuf[log_buffer_size-1] != '\0')
|| (outbuf[log_buffer_size] != '\0')
)
{
/* Repeat as assertions */
assert(length < log_buffer_size);
assert(outbuf[log_buffer_size-1] == '\0');
/*
* outbuf's real size is log_buffer_size+1,
* so while this looks like an off-by-one,
* we're only checking our paranoia byte.
*/
assert(outbuf[log_buffer_size] == '\0');
snprintf(outbuf, log_buffer_size,
"%s %08lx Fatal error: log_error()'s sanity checks failed."
"length: %d. Exiting.",
timestamp, thread_id, (int)length);
loglevel = LOG_LEVEL_FATAL;
}
#ifndef _WIN32
/*
* On Windows this is acceptable in case
* we are logging to the GUI window only.
*/
assert(NULL != logfp);
#endif
lock_logfile();
if (loglevel == LOG_LEVEL_FATAL)
{
fatal_error(outbuf);
/* Never get here */
}
if (logfp != NULL)
{
fputs(outbuf, logfp);
}
#if defined(_WIN32) && !defined(_WIN_CONSOLE)
/* Write to display */
LogPutString(outbuf);
#endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
unlock_logfile();
}
/*********************************************************************
*
* Function : jb_err_to_string
*
* Description : Translates JB_ERR_FOO codes into strings.
*
* Parameters :
* 1 : jb_error = a valid jb_err code
*
* Returns : A string with the jb_err translation
*
*********************************************************************/
const char *jb_err_to_string(jb_err jb_error)
{
switch (jb_error)
{
case JB_ERR_OK:
return "Success, no error";
case JB_ERR_MEMORY:
return "Out of memory";
case JB_ERR_CGI_PARAMS:
return "Missing or corrupt CGI parameters";
case JB_ERR_FILE:
return "Error opening, reading or writing a file";
case JB_ERR_PARSE:
return "Parse error";
case JB_ERR_MODIFIED:
return "File has been modified outside of the CGI actions editor.";
case JB_ERR_COMPRESS:
return "(De)compression failure";
}
assert(0);
return "Internal error";
}
#ifdef _WIN32