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Code

add (subsystem) to udevmonitor output

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This commit is contained in:
Kay Sievers 2007-02-16 13:57:08 +01:00
parent 6e82f66ea2
commit 8f4bc5f1df
1 changed files with 36 additions and 10 deletions
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46
udevmonitor.c
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@ -106,6 +106,26 @@ static void asmlinkage sig_handler(int signum)
udev_exit = 1;
}
static const char *search_key(const char *searchkey, const char *buf, size_t buflen)
{
size_t bufpos = 0;
size_t searchkeylen = strlen(searchkey);
while (bufpos < buflen) {
const char *key;
int keylen;
key = &buf[bufpos];
keylen = strlen(key);
if (keylen == 0)
break;
if ((strncmp(searchkey, key, searchkeylen) == 0) && key[searchkeylen] == '=')
return &key[searchkeylen + 1];
bufpos += keylen + 1;
}
return NULL;
}
int main(int argc, char *argv[])
{
struct sigaction act;
@ -156,10 +176,14 @@ int main(int argc, char *argv[])
while (!udev_exit) {
char buf[UEVENT_BUFFER_SIZE*2];
ssize_t buflen;
ssize_t bufpos;
ssize_t keys;
int fdcount;
struct timeval tv;
struct timezone tz;
char timestr[64];
const char *source = NULL;
const char *devpath, *action, *subsys;
buflen = 0;
FD_ZERO(&readfds);
@ -183,33 +207,35 @@ int main(int argc, char *argv[])
if ((uevent_netlink_sock >= 0) && FD_ISSET(uevent_netlink_sock, &readfds)) {
buflen = recv(uevent_netlink_sock, &buf, sizeof(buf), 0);
if (buflen <= 0) {
if (buflen <= 0) {
fprintf(stderr, "error receiving uevent message: %s\n", strerror(errno));
continue;
}
printf("UEVENT[%s] %s\n", timestr, buf);
source = "UEVENT";
}
if ((udev_monitor_sock >= 0) && FD_ISSET(udev_monitor_sock, &readfds)) {
buflen = recv(udev_monitor_sock, &buf, sizeof(buf), 0);
if (buflen <= 0) {
if (buflen <= 0) {
fprintf(stderr, "error receiving udev message: %s\n", strerror(errno));
continue;
}
printf("UDEV [%s] %s\n", timestr, buf);
source = "UDEV ";
}
if (buflen == 0)
continue;
keys = strlen(buf) + 1; /* start of payload */
devpath = search_key("DEVPATH", &buf[keys], buflen);
action = search_key("ACTION", &buf[keys], buflen);
subsys = search_key("SUBSYSTEM", &buf[keys], buflen);
printf("%s[%s] %-8s %s (%s)\n", source, timestr, action, devpath, subsys);
/* print environment */
bufpos = keys;
if (env) {
size_t bufpos;
/* start of payload */
bufpos = strlen(buf) + 1;
while (bufpos < (size_t)buflen) {
while (bufpos < buflen) {
int keylen;
char *key;