diff options
Diffstat (limited to 'customdhcpcd/src/logger.c')
-rw-r--r-- | customdhcpcd/src/logger.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/customdhcpcd/src/logger.c b/customdhcpcd/src/logger.c new file mode 100644 index 0000000..91d6cc0 --- /dev/null +++ b/customdhcpcd/src/logger.c @@ -0,0 +1,128 @@ +/* + * dhcpcd - DHCP client daemon + * Copyright 2006-2008 Roy Marples <roy@marples.name> + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + */ + +#define SYSLOG_NAMES + +#define COM_CH "/var/tmp/com.socket" + +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/un.h> +#include <ctype.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <syslog.h> + +#include "common.h" +#include "logger.h" +#include "logwriter.h" + +static int loglevel = LOG_WARNING; +static char logprefix[12] = { 0 }; + +int logtolevel(const char *priority) { + CODE *c; + + if (isdigit ((int) *priority)) + return (atoi(priority)); + + for (c = prioritynames; c->c_name; c++) + if (!strcasecmp(priority, c->c_name)) + return (c->c_val); + + return (-1); +} + +static const char *leveltolog(int level) { + CODE *c; + + for (c = prioritynames; c->c_name; c++) + if (c->c_val == level) + return (c->c_name); + + return (NULL); +} + +void setloglevel(int level) { + loglevel = level; +} + +void setlogprefix(const char *prefix) { + snprintf(logprefix, sizeof(logprefix), "%s", prefix); +} + +void logger(int level, const char *fmt, ...) { + va_list p; + va_list p2; + FILE *f = stderr; + + va_start (p, fmt); + va_copy (p2, p); + + if (level <= LOG_ERR || level <= loglevel) { + + /* new function by Niklas Goby + * send the log message also to our Qt programm. + * implemented in logwriter.c + * */ + logLoggerToQt(level, fmt, p); + + if (level == LOG_DEBUG || level == LOG_INFO) + f = stdout; + fprintf(f, "%s, %s", leveltolog(level), logprefix); + vfprintf(f, fmt, p); + fputc('\n', f); + + /* stdout, stderr may be re-directed to some kind of buffer. + * So we always flush to ensure it's written. */ + fflush(f); + } + + if (level < LOG_DEBUG || level <= loglevel) { + size_t len = strlen(logprefix); + size_t fmt2len = strlen(fmt) + len + 1; + char *fmt2 = malloc(sizeof(char) * fmt2len); + char *pf = fmt2; + if (fmt2) { + memcpy(pf, logprefix, len); + pf += len; + strlcpy(pf, fmt, fmt2len - len); + vsyslog(level, fmt2, p2); + free(fmt2); + } else { + vsyslog(level, fmt, p2); + syslog(LOG_ERR, "logger: memory exhausted"); + exit(EXIT_FAILURE); + } + } + + va_end (p2); + va_end (p); +} + |