diff options
Diffstat (limited to 'contrib/idn/idnkit-1.0-src/lib/log.c')
| -rw-r--r-- | contrib/idn/idnkit-1.0-src/lib/log.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/contrib/idn/idnkit-1.0-src/lib/log.c b/contrib/idn/idnkit-1.0-src/lib/log.c new file mode 100644 index 0000000..92ba9c9 --- /dev/null +++ b/contrib/idn/idnkit-1.0-src/lib/log.c @@ -0,0 +1,215 @@ +#ifndef lint +static char *rcsid = "$Id: log.c,v 1.1.1.1 2003/06/04 00:25:53 marka Exp $"; +#endif + +/* + * Copyright (c) 2000 Japan Network Information Center. All rights reserved. + * + * By using this file, you agree to the terms and conditions set forth bellow. + * + * LICENSE TERMS AND CONDITIONS + * + * The following License Terms and Conditions apply, unless a different + * license is obtained from Japan Network Information Center ("JPNIC"), + * a Japanese association, Kokusai-Kougyou-Kanda Bldg 6F, 2-3-4 Uchi-Kanda, + * Chiyoda-ku, Tokyo 101-0047, Japan. + * + * 1. Use, Modification and Redistribution (including distribution of any + * modified or derived work) in source and/or binary forms is permitted + * under this License Terms and Conditions. + * + * 2. Redistribution of source code must retain the copyright notices as they + * appear in each source code file, this License Terms and Conditions. + * + * 3. Redistribution in binary form must reproduce the Copyright Notice, + * this License Terms and Conditions, in the documentation and/or other + * materials provided with the distribution. For the purposes of binary + * distribution the "Copyright Notice" refers to the following language: + * "Copyright (c) 2000-2002 Japan Network Information Center. All rights reserved." + * + * 4. The name of JPNIC may not be used to endorse or promote products + * derived from this Software without specific prior written approval of + * JPNIC. + * + * 5. Disclaimer/Limitation of Liability: THIS SOFTWARE IS PROVIDED BY JPNIC + * "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 JPNIC 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 DAMAGES. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdarg.h> +#include <stdlib.h> +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif + +#include <idn/log.h> + +#define LOGLEVEL_ENV "IDN_LOG_LEVEL" + +#ifdef DEBUG +#define DEFAULT_LOG_LEVEL idn_log_level_info +#else +#define DEFAULT_LOG_LEVEL idn_log_level_error +#endif + +static int log_level = -1; +static idn_log_proc_t log_proc; + +static void initialize(void); +static void log(int level, const char *fmt, va_list args); +static void log_to_stderr(int level, const char *buf); + +void +idn_log_fatal(const char *fmt, ...) { + va_list args; + + va_start(args, fmt); + log(idn_log_level_fatal, fmt, args); + va_end(args); + exit(1); +} + +void +idn_log_error(const char *fmt, ...) { + va_list args; + + va_start(args, fmt); + log(idn_log_level_error, fmt, args); + va_end(args); +} + +void +idn_log_warning(const char *fmt, ...) { + va_list args; + + va_start(args, fmt); + log(idn_log_level_warning, fmt, args); + va_end(args); +} + +void +idn_log_info(const char *fmt, ...) { + va_list args; + + va_start(args, fmt); + log(idn_log_level_info, fmt, args); + va_end(args); +} + +void +idn_log_trace(const char *fmt, ...) { + va_list args; + + va_start(args, fmt); + log(idn_log_level_trace, fmt, args); + va_end(args); +} + +void +idn_log_dump(const char *fmt, ...) { + va_list args; + + va_start(args, fmt); + log(idn_log_level_dump, fmt, args); + va_end(args); +} + +void +idn_log_setlevel(int level) { + if (level >= 0) + log_level = level; +} + +int +idn_log_getlevel(void) { + if (log_level < 0) + initialize(); + return log_level; +} + +void +idn_log_setproc(idn_log_proc_t proc) { + if (proc == NULL) + log_proc = log_to_stderr; + else + log_proc = proc; +} + +static void +initialize(void) { + char *s; + + if (log_level < 0) { + if ((s = getenv(LOGLEVEL_ENV)) != NULL) { + int level = atoi(s); + if (level >= 0) + log_level = level; + } + if (log_level < 0) + log_level = DEFAULT_LOG_LEVEL; + } + + if (log_proc == NULL) + log_proc = log_to_stderr; +} + +static void +log(int level, const char *fmt, va_list args) { + char buf[1024]; + + initialize(); + + if (log_level < level) + return; + +#if HAVE_VSNPRINTF + (void)vsnprintf(buf, sizeof(buf), fmt, args); +#else + /* Let's hope 1024 is enough.. */ + (void)vsprintf(buf, fmt, args); +#endif + (*log_proc)(level, buf); +} + +static void +log_to_stderr(int level, const char *buf) { + char *title; + char tmp[20]; + + switch (level) { + case idn_log_level_fatal: + title = "FATAL"; + break; + case idn_log_level_error: + title = "ERROR"; + break; + case idn_log_level_warning: + title = "WARNING"; + break; + case idn_log_level_info: + title = "INFO"; + break; + case idn_log_level_trace: + title = "TRACE"; + break; + case idn_log_level_dump: + title = "DUMP"; + break; + default: + (void)sprintf(tmp, "LEVEL%d", level); + title = tmp; + break; + } + fprintf(stderr, "%u: [%s] %s", (unsigned int)getpid(), title, buf); +} |