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-rw-r--r--libosmocore/src/logging.c419
1 files changed, 0 insertions, 419 deletions
diff --git a/libosmocore/src/logging.c b/libosmocore/src/logging.c
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--- a/libosmocore/src/logging.c
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-/* Debugging/Logging support code */
-
-/* (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>
- * (C) 2008 by Holger Hans Peter Freyther <zecke@selfish.org>
- * All Rights Reserved
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#include "../config.h"
-
-#include <stdarg.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#include <time.h>
-#include <errno.h>
-
-#include <osmocore/talloc.h>
-#include <osmocore/utils.h>
-#include <osmocore/logging.h>
-
-const struct log_info *osmo_log_info;
-
-static struct log_context log_context;
-static void *tall_log_ctx = NULL;
-static LLIST_HEAD(target_list);
-
-static const struct value_string loglevel_strs[] = {
- { 0, "EVERYTHING" },
- { LOGL_DEBUG, "DEBUG" },
- { LOGL_INFO, "INFO" },
- { LOGL_NOTICE, "NOTICE" },
- { LOGL_ERROR, "ERROR" },
- { LOGL_FATAL, "FATAL" },
- { 0, NULL },
-};
-
-int log_parse_level(const char *lvl)
-{
- return get_string_value(loglevel_strs, lvl);
-}
-
-const char *log_level_str(unsigned int lvl)
-{
- return get_value_string(loglevel_strs, lvl);
-}
-
-int log_parse_category(const char *category)
-{
- int i;
-
- for (i = 0; i < osmo_log_info->num_cat; ++i) {
- if (!strcasecmp(osmo_log_info->cat[i].name+1, category))
- return i;
- }
-
- return -EINVAL;
-}
-
-/*
- * Parse the category mask.
- * The format can be this: category1:category2:category3
- * or category1,2:category2,3:...
- */
-void log_parse_category_mask(struct log_target* target, const char *_mask)
-{
- int i = 0;
- char *mask = strdup(_mask);
- char *category_token = NULL;
-
- /* Disable everything to enable it afterwards */
- for (i = 0; i < ARRAY_SIZE(target->categories); ++i)
- target->categories[i].enabled = 0;
-
- category_token = strtok(mask, ":");
- do {
- for (i = 0; i < osmo_log_info->num_cat; ++i) {
- char* colon = strstr(category_token, ",");
- int length = strlen(category_token);
-
- if (colon)
- length = colon - category_token;
-
- if (strncasecmp(osmo_log_info->cat[i].name,
- category_token, length) == 0) {
- int level = 0;
-
- if (colon)
- level = atoi(colon+1);
-
- target->categories[i].enabled = 1;
- target->categories[i].loglevel = level;
- }
- }
- } while ((category_token = strtok(NULL, ":")));
-
- free(mask);
-}
-
-static const char* color(int subsys)
-{
- if (subsys < osmo_log_info->num_cat)
- return osmo_log_info->cat[subsys].color;
-
- return NULL;
-}
-
-static void _output(struct log_target *target, unsigned int subsys,
- char *file, int line, int cont, const char *format,
- va_list ap)
-{
- char col[30];
- char sub[30];
- char tim[30];
- char buf[4096];
- char final[4096];
-
- /* prepare the data */
- col[0] = '\0';
- sub[0] = '\0';
- tim[0] = '\0';
- buf[0] = '\0';
-
- /* are we using color */
- if (target->use_color) {
- const char *c = color(subsys);
- if (c) {
- snprintf(col, sizeof(col), "%s", color(subsys));
- col[sizeof(col)-1] = '\0';
- }
- }
- vsnprintf(buf, sizeof(buf), format, ap);
- buf[sizeof(buf)-1] = '\0';
-
- if (!cont) {
- if (target->print_timestamp) {
- char *timestr;
- time_t tm;
- tm = time(NULL);
- timestr = ctime(&tm);
- timestr[strlen(timestr)-1] = '\0';
- snprintf(tim, sizeof(tim), "%s ", timestr);
- tim[sizeof(tim)-1] = '\0';
- }
- snprintf(sub, sizeof(sub), "<%4.4x> %s:%d ", subsys, file, line);
- sub[sizeof(sub)-1] = '\0';
- }
-
- snprintf(final, sizeof(final), "%s%s%s%s\033[0;m", col, tim, sub, buf);
- final[sizeof(final)-1] = '\0';
- target->output(target, final);
-}
-
-
-static void _logp(unsigned int subsys, int level, char *file, int line,
- int cont, const char *format, va_list ap)
-{
- struct log_target *tar;
-
- llist_for_each_entry(tar, &target_list, entry) {
- struct log_category *category;
- int output = 0;
-
- category = &tar->categories[subsys];
- /* subsystem is not supposed to be logged */
- if (!category->enabled)
- continue;
-
- /* Check the global log level */
- if (tar->loglevel != 0 && level < tar->loglevel)
- continue;
-
- /* Check the category log level */
- if (tar->loglevel == 0 && category->loglevel != 0 &&
- level < category->loglevel)
- continue;
-
- /* Apply filters here... if that becomes messy we will
- * need to put filters in a list and each filter will
- * say stop, continue, output */
- if ((tar->filter_map & LOG_FILTER_ALL) != 0)
- output = 1;
- else if (osmo_log_info->filter_fn)
- output = osmo_log_info->filter_fn(&log_context,
- tar);
-
- if (output) {
- /* FIXME: copying the va_list is an ugly
- * workaround against a bug hidden somewhere in
- * _output. If we do not copy here, the first
- * call to _output() will corrupt the va_list
- * contents, and any further _output() calls
- * with the same va_list will segfault */
- va_list bp;
- va_copy(bp, ap);
- _output(tar, subsys, file, line, cont, format, bp);
- va_end(bp);
- }
- }
-}
-
-void logp(unsigned int subsys, char *file, int line, int cont,
- const char *format, ...)
-{
- va_list ap;
-
- va_start(ap, format);
- _logp(subsys, LOGL_DEBUG, file, line, cont, format, ap);
- va_end(ap);
-}
-
-void logp2(unsigned int subsys, unsigned int level, char *file, int line, int cont, const char *format, ...)
-{
- va_list ap;
-
- va_start(ap, format);
- _logp(subsys, level, file, line, cont, format, ap);
- va_end(ap);
-}
-
-static char hexd_buff[4096];
-
-char *hexdump(const unsigned char *buf, int len)
-{
- int i;
- char *cur = hexd_buff;
-
- hexd_buff[0] = 0;
- for (i = 0; i < len; i++) {
- int len_remain = sizeof(hexd_buff) - (cur - hexd_buff);
- int rc = snprintf(cur, len_remain, "%02x ", buf[i]);
- if (rc <= 0)
- break;
- cur += rc;
- }
- hexd_buff[sizeof(hexd_buff)-1] = 0;
- return hexd_buff;
-}
-
-void log_add_target(struct log_target *target)
-{
- llist_add_tail(&target->entry, &target_list);
-}
-
-void log_del_target(struct log_target *target)
-{
- llist_del(&target->entry);
-}
-
-void log_reset_context(void)
-{
- memset(&log_context, 0, sizeof(log_context));
-}
-
-int log_set_context(uint8_t ctx_nr, void *value)
-{
- if (ctx_nr > LOG_MAX_CTX)
- return -EINVAL;
-
- log_context.ctx[ctx_nr] = value;
-
- return 0;
-}
-
-void log_set_all_filter(struct log_target *target, int all)
-{
- if (all)
- target->filter_map |= LOG_FILTER_ALL;
- else
- target->filter_map &= ~LOG_FILTER_ALL;
-}
-
-void log_set_use_color(struct log_target *target, int use_color)
-{
- target->use_color = use_color;
-}
-
-void log_set_print_timestamp(struct log_target *target, int print_timestamp)
-{
- target->print_timestamp = print_timestamp;
-}
-
-void log_set_log_level(struct log_target *target, int log_level)
-{
- target->loglevel = log_level;
-}
-
-void log_set_category_filter(struct log_target *target, int category,
- int enable, int level)
-{
- if (category >= osmo_log_info->num_cat)
- return;
- target->categories[category].enabled = !!enable;
- target->categories[category].loglevel = level;
-}
-
-/* since C89/C99 says stderr is a macro, we can safely do this! */
-#ifdef stderr
-static void _stderr_output(struct log_target *target, const char *log)
-{
- fprintf(target->tgt_stdout.out, "%s", log);
- fflush(target->tgt_stdout.out);
-}
-#endif
-
-struct log_target *log_target_create(void)
-{
- struct log_target *target;
- unsigned int i;
-
- target = talloc_zero(tall_log_ctx, struct log_target);
- if (!target)
- return NULL;
-
- INIT_LLIST_HEAD(&target->entry);
-
- /* initialize the per-category enabled/loglevel from defaults */
- for (i = 0; i < osmo_log_info->num_cat; i++) {
- struct log_category *cat = &target->categories[i];
- cat->enabled = osmo_log_info->cat[i].enabled;
- cat->loglevel = osmo_log_info->cat[i].loglevel;
- }
-
- /* global settings */
- target->use_color = 1;
- target->print_timestamp = 0;
-
- /* global log level */
- target->loglevel = 0;
- return target;
-}
-
-struct log_target *log_target_create_stderr(void)
-{
-/* since C89/C99 says stderr is a macro, we can safely do this! */
-#ifdef stderr
- struct log_target *target;
-
- target = log_target_create();
- if (!target)
- return NULL;
-
- target->tgt_stdout.out = stderr;
- target->output = _stderr_output;
- return target;
-#else
- return NULL;
-#endif /* stderr */
-}
-
-const char *log_vty_level_string(struct log_info *info)
-{
- const struct value_string *vs;
- unsigned int len = 3; /* ()\0 */
- char *str;
-
- for (vs = loglevel_strs; vs->value || vs->str; vs++)
- len += strlen(vs->str) + 1;
-
- str = talloc_zero_size(NULL, len);
- if (!str)
- return NULL;
-
- str[0] = '(';
- for (vs = loglevel_strs; vs->value || vs->str; vs++) {
- strcat(str, vs->str);
- strcat(str, "|");
- }
- str[strlen(str)-1] = ')';
-
- return str;
-}
-
-const char *log_vty_category_string(struct log_info *info)
-{
- unsigned int len = 3; /* "()\0" */
- unsigned int i;
- char *str;
-
- for (i = 0; i < info->num_cat; i++)
- len += strlen(info->cat[i].name) + 1;
-
- str = talloc_zero_size(NULL, len);
- if (!str)
- return NULL;
-
- str[0] = '(';
- for (i = 0; i < info->num_cat; i++) {
- strcat(str, info->cat[i].name+1);
- strcat(str, "|");
- }
- str[strlen(str)-1] = ')';
-
- return str;
-}
-
-void log_init(const struct log_info *cat)
-{
- tall_log_ctx = talloc_named_const(NULL, 1, "logging");
- osmo_log_info = cat;
-}