mirror of
https://gitlab.com/cryptsetup/cryptsetup.git
synced 2025-12-06 00:10:04 +01:00
e640f5e006
git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@631 36d66b0a-2a48-0410-832c-cd162a569da5
77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
#include <stdio.h>
|
|
#include <sys/types.h>
|
|
#include <syslog.h>
|
|
#include <unistd.h>
|
|
#include <libcryptsetup.h>
|
|
|
|
/*
|
|
* This is an example of function that can be registered using crypt_set_log_callback API.
|
|
*
|
|
* Its prototype is void (*log)(int level, const char *msg, void *usrptr) as defined
|
|
* in crypt_set_log_callback
|
|
*/
|
|
static void simple_syslog_wrapper(int level, const char *msg, void *usrptr)
|
|
{
|
|
const char *prefix = (const char *)usrptr;
|
|
int priority;
|
|
|
|
switch(level) {
|
|
case CRYPT_LOG_NORMAL: priority = LOG_NOTICE; break;
|
|
case CRYPT_LOG_ERROR: priority = LOG_ERR; break;
|
|
case CRYPT_LOG_VERBOSE: priority = LOG_INFO; break;
|
|
case CRYPT_LOG_DEBUG: priority = LOG_DEBUG; break;
|
|
default:
|
|
fprintf(stderr, "Unsupported log level requested!\n");
|
|
return;
|
|
}
|
|
|
|
if (prefix)
|
|
syslog(priority, "%s:%s", prefix, msg);
|
|
else
|
|
syslog(priority, "%s", msg);
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
struct crypt_device *cd;
|
|
char usrprefix[] = "cslog_example";
|
|
int r;
|
|
|
|
if (geteuid()) {
|
|
printf("Using of libcryptsetup requires super user privileges.\n");
|
|
return 1;
|
|
}
|
|
|
|
openlog("cryptsetup", LOG_CONS | LOG_PID, LOG_USER);
|
|
|
|
/* Initialize empty crypt device context */
|
|
r = crypt_init(&cd, NULL);
|
|
if (r < 0) {
|
|
printf("crypt_init() failed.\n");
|
|
return 2;
|
|
}
|
|
|
|
/* crypt_set_log_callback() - register a log function for crypt context */
|
|
crypt_set_log_callback(cd, &simple_syslog_wrapper, (void *)usrprefix);
|
|
|
|
/* send messages ithrough the crypt_log() interface */
|
|
crypt_log(cd, CRYPT_LOG_NORMAL, "This is normal log message");
|
|
crypt_log(cd, CRYPT_LOG_ERROR, "This is error log message");
|
|
crypt_log(cd, CRYPT_LOG_VERBOSE, "This is verbose log message");
|
|
crypt_log(cd, CRYPT_LOG_DEBUG, "This is debug message");
|
|
|
|
/* release crypt context */
|
|
crypt_free(cd);
|
|
|
|
/* Initialize default (global) log function */
|
|
crypt_set_log_callback(NULL, &simple_syslog_wrapper, NULL);
|
|
|
|
crypt_log(NULL, CRYPT_LOG_NORMAL, "This is normal log message");
|
|
crypt_log(NULL, CRYPT_LOG_ERROR, "This is error log message");
|
|
crypt_log(NULL, CRYPT_LOG_VERBOSE, "This is verbose log message");
|
|
crypt_log(NULL, CRYPT_LOG_DEBUG, "This is debug message");
|
|
|
|
closelog();
|
|
return 0;
|
|
}
|