mirror of
https://github.com/AuxXxilium/eudev.git
synced 2024-12-16 03:27:49 +07:00
128 lines
2.7 KiB
C
128 lines
2.7 KiB
C
/*
|
|
* udeveventrecorder.c
|
|
*
|
|
* Copyright (C) 2004-2005 SuSE Linux Products GmbH
|
|
* Author:
|
|
* Olaf Hering <olh@suse.de>
|
|
*
|
|
* 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 version 2 of the License.
|
|
*
|
|
* 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.,
|
|
* 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
|
|
#include "udev.h"
|
|
#include "udev_version.h"
|
|
#include "udev_utils.h"
|
|
#include "logging.h"
|
|
|
|
#define BUFSIZE 12345
|
|
#define FNSIZE 123
|
|
|
|
static int log = 0;
|
|
|
|
#ifdef USE_LOG
|
|
void log_message (int priority, const char *format, ...)
|
|
{
|
|
va_list args;
|
|
|
|
if (priority > log)
|
|
return;
|
|
|
|
va_start(args, format);
|
|
vsyslog(priority, format, args);
|
|
va_end(args);
|
|
}
|
|
#endif
|
|
|
|
int main(int argc, char **argv, char **envp)
|
|
{
|
|
int fd, i;
|
|
unsigned long seq;
|
|
char **ep = envp;
|
|
char *buf, *p, *a;
|
|
struct stat sb;
|
|
const char *env;
|
|
|
|
if (stat("/events", &sb) || !(S_ISDIR(sb.st_mode)))
|
|
return 1;
|
|
|
|
env = getenv("UDEV_LOG");
|
|
if (env)
|
|
log = log_priority(env);
|
|
|
|
logging_init("udeveventrecorder");
|
|
dbg("version %s", UDEV_VERSION);
|
|
|
|
p = getenv("SEQNUM");
|
|
a = getenv("ACTION");
|
|
buf = malloc(FNSIZE);
|
|
if (!(buf && a && argv[1]))
|
|
goto error;
|
|
if (p)
|
|
seq = strtoul(p, NULL, 0);
|
|
else
|
|
seq = 0;
|
|
|
|
snprintf(buf, FNSIZE, "/events/debug.%05lu.%s.%s.%u", seq, argv[1], a ? a : "", getpid());
|
|
if ((fd = open(buf, O_CREAT | O_WRONLY | O_TRUNC, 0644)) < 0) {
|
|
err("error creating '%s'", buf);
|
|
goto error;
|
|
}
|
|
free(buf);
|
|
p = malloc(BUFSIZE);
|
|
buf = p;
|
|
buf += snprintf(buf, p + BUFSIZE - buf, "set --");
|
|
for (i = 1; i < argc; ++i) {
|
|
buf += snprintf(buf, p + BUFSIZE - buf, " %s", argv[i]);
|
|
if (buf > p + BUFSIZE)
|
|
goto full;
|
|
}
|
|
buf += snprintf(buf, p + BUFSIZE - buf, "\n");
|
|
if (buf > p + BUFSIZE)
|
|
goto full;
|
|
while (*ep) {
|
|
unsigned char *t;
|
|
t = memchr(*ep, '=', strlen(*ep));
|
|
if (t) {
|
|
*t = '\0';
|
|
t++;
|
|
buf += snprintf(buf, p + BUFSIZE - buf, "%s='%s'\n", *ep, t);
|
|
--t;
|
|
*t = '=';
|
|
}
|
|
ep++;
|
|
if (buf > p + BUFSIZE)
|
|
break;
|
|
}
|
|
|
|
full:
|
|
buf = p;
|
|
write(fd, buf, strlen(buf));
|
|
close(fd);
|
|
free(buf);
|
|
return 0;
|
|
|
|
error:
|
|
fprintf(stderr, "record enviroment to /events, to be called from udev context\n");
|
|
return 1;
|
|
}
|