#include "apr_thread_proc.h"
+/**
+ * @package Apache logging library
+ */
+
#ifdef HAVE_SYSLOG
#include <syslog.h>
#define APLOG_MARK __FILE__,__LINE__
-void ap_open_logs (server_rec *, ap_pool_t *p);
+/**
+ * Open the error log and replace stderr with it.
+ * @param s_main The main server
+ * @param p The pool to allocate out of
+ */
+void ap_open_logs (server_rec *s_main, ap_pool_t *p);
-/* The three primary logging functions, ap_log_error, ap_log_rerror, and
+/*
+ * The three primary logging functions, ap_log_error, ap_log_rerror, and
* ap_log_perror use a printf style format string to build the log message.
* It is VERY IMPORTANT that you not include any raw data from the network,
* such as the request-URI or request header fields, within the format
* attack and other messy behavior. Instead, use a simple format string
* like "%s", followed by the string containing the untrusted data.
*/
+
+/**
+ * One of the primary logging routines in Apache. This uses a printf-like
+ * format to log messages to the error_log.
+ * @param file The file in which this function is called
+ * @param line The line number on which this function is called
+ * @param level The level of this error message
+ * @param status The status code from the previous command
+ * @param s The server on which we are logging
+ * @param fmt The format string
+ * @param ... The arguments to use to fill out fmt.
+ * @tip Use APLOG_MARK to fill out file and line
+ * @warning It is VERY IMPORTANT that you not include any raw data from
+ * the network, such as the request-URI or request header fields, within
+ * the format string. Doing so makes the server vulnerable to a
+ * denial-of-service attack and other messy behavior. Instead, use a
+ * simple format string like "%s", followed by the string containing the
+ * untrusted data.
+ * @deffunc void ap_log_error(const char *file, int line, int level, ap_status_t status, const server_rec *s, const char *fmt, ...)
+ */
API_EXPORT(void) ap_log_error(const char *file, int line, int level,
ap_status_t status, const server_rec *s,
const char *fmt, ...)
__attribute__((format(printf,6,7)));
+
+/**
+ * The second of the primary logging routines in Apache. This uses
+ * a printf-like format to log messages to the error_log.
+ * @param file The file in which this function is called
+ * @param line The line number on which this function is called
+ * @param level The level of this error message
+ * @param status The status code from the previous command
+ * @param p The pool which we are logging for
+ * @param fmt The format string
+ * @param ... The arguments to use to fill out fmt.
+ * @tip Use APLOG_MARK to fill out file and line
+ * @warning It is VERY IMPORTANT that you not include any raw data from
+ * the network, such as the request-URI or request header fields, within
+ * the format string. Doing so makes the server vulnerable to a
+ * denial-of-service attack and other messy behavior. Instead, use a
+ * simple format string like "%s", followed by the string containing the
+ * untrusted data.
+ * @deffunc void ap_log_error(const char *file, int line, int level, ap_status_t status, ap_pool_t *p, const char *fmt, ...)
+ */
API_EXPORT(void) ap_log_perror(const char *file, int line, int level,
ap_status_t status, ap_pool_t *p,
const char *fmt, ...)
__attribute__((format(printf,6,7)));
+
+/**
+ * The last of the primary logging routines in Apache. This uses
+ * a printf-like format to log messages to the error_log.
+ * @param file The file in which this function is called
+ * @param line The line number on which this function is called
+ * @param level The level of this error message
+ * @param status The status code from the previous command
+ * @param s The request which we are logging for
+ * @param fmt The format string
+ * @param ... The arguments to use to fill out fmt.
+ * @tip Use APLOG_MARK to fill out file and line
+ * @warning It is VERY IMPORTANT that you not include any raw data from
+ * the network, such as the request-URI or request header fields, within
+ * the format string. Doing so makes the server vulnerable to a
+ * denial-of-service attack and other messy behavior. Instead, use a
+ * simple format string like "%s", followed by the string containing the
+ * untrusted data.
+ * @deffunc void ap_log_error(const char *file, int line, int level, ap_status_t status, request_rec *s, const char *fmt, ...)
+ */
API_EXPORT(void) ap_log_rerror(const char *file, int line, int level,
ap_status_t status, const request_rec *s,
const char *fmt, ...)
__attribute__((format(printf,6,7)));
-API_EXPORT(void) ap_error_log2stderr (server_rec *);
+/**
+ * Convert stderr to the error log
+ * @param s The current server
+ * @deffunc void ap_error_log2stderr(server_rec *s)
+ */
+API_EXPORT(void) ap_error_log2stderr (server_rec *);
+
+/**
+ * Log the current pid of the parent process
+ * @param p The pool to use for logging
+ * @param fname The name of the file to log to
+ */
void ap_log_pid (ap_pool_t *p, const char *fname);
/* These are for legacy code, new code should use ap_log_error,
* or ap_log_rerror.
API_EXPORT(void) ap_log_reason(const char *reason, const char *fname,
request_rec *r);
-typedef struct piped_log {
+typedef struct piped_log piped_log;
+
+/**
+ * The piped logging structure. Piped logs are used to move functionality
+ * out of the main server. For example, log rotation is done with piped logs.
+ */
+struct piped_log {
+ /** The pool to use for the piped log */
ap_pool_t *p;
+ /** The pipe between the server and the logging process */
ap_file_t *fds[2];
/* XXX - an #ifdef that needs to be eliminated from public view. Shouldn't
* be hard */
#ifdef HAVE_RELIABLE_PIPED_LOGS
+ /** The name of the program the logging process is running */
char *program;
+ /** The pid of the logging process */
ap_proc_t *pid;
#endif
-} piped_log;
+};
+/**
+ * Open the piped log process
+ * @param p The pool to allocate out of
+ * @param program The program to run in the logging process
+ * @return The piped log structure
+ * @deffunc piped_log *ap_open_piped_log(ap_pool_t *p, const char *program)
+ */
API_EXPORT(piped_log *) ap_open_piped_log (ap_pool_t *p, const char *program);
+
+/**
+ * Close the piped log and kill the logging process
+ * @param pl The piped log structure
+ * @deffunc void ap_close_piped_log(piped_log *pl)
+ */
API_EXPORT(void) ap_close_piped_log (piped_log *);
+
+/**
+ * A macro to access the read side of the piped log pipe
+ * @param pl The piped log structure
+ * @return The native file descriptor
+ * @deffunc ap_piped_log_read_fd(pl)
+ */
#define ap_piped_log_read_fd(pl) ((pl)->fds[0])
+
+/**
+ * A macro to access the write side of the piped log pipe
+ * @param pl The piped log structure
+ * @return The native file descriptor
+ * @deffunc ap_piped_log_read_fd(pl)
+ */
#define ap_piped_log_write_fd(pl) ((pl)->fds[1])
#ifdef __cplusplus