diff options
Diffstat (limited to 'kerberosIV/krb/logging.c')
| -rw-r--r-- | kerberosIV/krb/logging.c | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/kerberosIV/krb/logging.c b/kerberosIV/krb/logging.c new file mode 100644 index 00000000000..46c7ba2c998 --- /dev/null +++ b/kerberosIV/krb/logging.c @@ -0,0 +1,240 @@ +/* $KTH: logging.c,v 1.14 1997/05/11 09:01:40 assar Exp $ */ + +/* + * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the Kungliga Tekniska + * Högskolan and its contributors. + * + * 4. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb_locl.h" +#include <klog.h> + +struct krb_log_facility { + char filename[MAXPATHLEN]; + FILE *file; + krb_log_func_t func; +}; + +int +krb_vlogger(struct krb_log_facility *f, const char *format, va_list args) +{ + FILE *file = NULL; + int ret; + + if (f->file != NULL) + file = f->file; + else if (f->filename && f->filename[0]) + file = fopen(f->filename, "a"); + + ret = f->func(file, format, args); + + if (file != f->file) + fclose(file); + return ret; +} + +int +krb_logger(struct krb_log_facility *f, const char *format, ...) +{ + va_list args; + int ret; + va_start(args, format); + ret = krb_vlogger(f, format, args); + va_end(args); + return ret; +} + +/* + * If FILE * is given log to it, otherwise, log to filename. When + * given a file name the file is opened and closed for each log + * record. + */ +int +krb_openlog(struct krb_log_facility *f, + char *filename, + FILE *file, + krb_log_func_t func) +{ + strcpy(f->filename, filename); + f->file = file; + f->func = func; + return KSUCCESS; +} + +/* ------------------------------------------------------------ + Compatibility functions from warning.c + ------------------------------------------------------------ */ + +static int +log_tty(FILE *f, const char *format, va_list args) +{ + if (f != NULL && isatty(fileno(f))) + vfprintf(f, format, args); + return KSUCCESS; +} + +/* stderr */ +static struct krb_log_facility std_log = { "/dev/tty", NULL, log_tty }; + +static void +init_std_log () +{ + static int done = 0; + + if (!done) { + std_log.file = stderr; + done = 1; + } +} + +/* + * + */ +void +krb_set_warnfn (krb_warnfn_t newfunc) +{ + init_std_log (); + std_log.func = newfunc; +} + +/* + * + */ +krb_warnfn_t +krb_get_warnfn (void) +{ + init_std_log (); + return std_log.func; +} + +/* + * Log warnings to stderr if it's a tty. + */ +void +krb_warning (const char *format, ...) +{ + va_list args; + + init_std_log (); + va_start(args, format); + krb_vlogger(&std_log, format, args); + va_end(args); +} + +/* ------------------------------------------------------------ + Compatibility functions from klog.c and log.c + ------------------------------------------------------------ */ + +/* + * Used by kerberos and kadmind daemons and in libkrb (rd_req.c). + * + * By default they log to the kerberos server log-file (KRBLOG) to be + * backwards compatible. + */ + +static int +log_with_timestamp_and_nl(FILE *file, const char *format, va_list args) +{ + time_t now; + if(file == NULL) + return KFAILURE; + time(&now); + fputs(krb_stime(&now), file); + fputs(": ", file); + vfprintf(file, format, args); + fputs("\n", file); + fflush(file); + return KSUCCESS; +} + +static struct krb_log_facility +file_log = { KRBLOG, NULL, log_with_timestamp_and_nl }; + +/* + * kset_logfile() changes the name of the file to which + * messages are logged. If kset_logfile() is not called, + * the logfile defaults to KRBLOG, defined in "krb.h". + */ + +void +kset_logfile(char *filename) +{ + krb_openlog(&file_log, filename, NULL, log_with_timestamp_and_nl); +} + +/* + * krb_log() and klog() is used to add entries to the logfile. + * + * The log entry consists of a timestamp and the given arguments + * printed according to the given "format" string. + * + * The log file is opened and closed for each log entry. + * + * If the given log type "type" is unknown, or if the log file + * cannot be opened, no entry is made to the log file. + * + * CHANGE: the type is always ignored + * + * The return value of klog() is always a pointer to the formatted log + * text string "logtxt". + */ + +/* Used in kerberos.c only. */ +char * +klog(int type, const char *format, ...) +{ + static char logtxt[1024]; + + va_list ap; + + va_start(ap, format); + vsnprintf(logtxt, sizeof(logtxt), format, ap); + va_end(ap); + + krb_logger(&file_log, "%s", logtxt); + + return logtxt; +} + +/* Used in kadmind and rd_req.c */ +void +krb_log(const char *format, ...) +{ + va_list args; + + va_start(args, format); + krb_vlogger(&file_log, format, args); + va_end(args); +} |