new gluelog stuff

2 files changed, 178 insertions, 0 deletions

diff --git a/sys-apps/gluelog/files/glueklog.c b/sys-apps/gluelog/files/glueklog.c
new file mode 100644
index 000000000000..00e993ddc71b
--- /dev/null
+++ b/sys-apps/gluelog/files/glueklog.c
@@ -0,0 +1,87 @@
+/* Syslog listener for systems where /dev/log is a Unix domain socket. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <pwd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <sys/un.h>
+#include <errno.h>
+
+#define SIZE 1024
+#define SOCKNAME "/dev/log"
+#define RUNUSER "daemon"
+
+int main(int argc, char **argv){
+	char buf[SIZE];
+	ssize_t r, w;
+	struct sockaddr_un sa1;
+	int s1;
+	fd_set fs;
+	int fd[2];
+	pid_t child;
+	struct passwd *userinfo;
+
+	if(argc<2){
+		fprintf(stderr, "No logger specified\n");
+		exit(1);
+	}
+
+	/* Assume that it's ok to grab /dev/log. */
+	if ((s1 = open("/proc/kmsg",O_RDONLY)) == -1) {
+		perror("/proc/kmsg");
+		exit(1);
+	}
+	/* Dropping privileges here 
+	userinfo=getpwnam(RUNUSER);      
+	if(userinfo){
+		setuid(userinfo->pw_uid);
+		seteuid(userinfo->pw_uid);
+	} else {
+		fprintf(stderr, "No such user: %s\n", RUNUSER);
+		exit(1);
+	}
+*/
+	if(pipe(fd)==-1){
+		perror("pipe");
+		exit(1);
+	}
+	if((child=fork())==-1){
+		perror("fork");
+		exit(1);
+	}
+	if(child==0){ /* We are the child */
+		close(fd[1]); /* Child will only be reading from, not writing to parent */
+		dup2(fd[0], 0);
+		/* Execute logger */
+		//execlp("multilog", "multilog", "/tmp/test", NULL);
+		argv++;
+		execvp(argv[0], argv);
+	}
+
+	/* We are Parent */
+	close(fd[0]); /* Write to the child */
+
+	for(;;) {
+		r = read(s1, buf, SIZE);
+		if (r < 0) {
+			if (errno!=EINTR)
+				perror("read");
+			continue;
+		}
+		while (r) {
+			w = write(fd[1], buf, r);
+			if (w < 0) {
+				if (errno!=EINTR)
+					perror("write");
+				exit(1);
+			}
+			r -= w;
+		}
+	}
+}
diff --git a/sys-apps/gluelog/files/gluelog.c b/sys-apps/gluelog/files/gluelog.c
new file mode 100644
index 000000000000..5762c8f59c57
--- /dev/null
+++ b/sys-apps/gluelog/files/gluelog.c
@@ -0,0 +1,91 @@
+/* Syslog listener for systems where /dev/log is a Unix domain socket. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <pwd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <sys/un.h>
+
+#define SIZE 1024
+#define SOCKNAME "/dev/log"
+#define RUNUSER "daemon"
+
+int main(int argc, char **argv){
+	char buf[SIZE];
+	ssize_t r, w;
+	struct sockaddr_un sa1;
+	int s1;
+	fd_set fs;
+	int fd[2];
+	pid_t child;
+	struct passwd *userinfo;
+
+	if(argc<2){
+		fprintf(stderr, "No logger specified\n");
+		exit(1);
+	}
+
+	/* Assume that it's ok to grab /dev/log. */
+	if ((s1 = socket(AF_UNIX, SOCK_DGRAM, 0)) == -1) {
+		perror("socket");
+		exit(1);
+	}
+	sa1.sun_family = AF_UNIX;
+	strcpy(sa1.sun_path, SOCKNAME);
+	unlink(SOCKNAME);
+	if (bind(s1, &sa1, sizeof(sa1)) == -1) {
+		perror("bind");
+		exit(1);
+	}
+	
+	/* Dropping privileges here */
+	userinfo=getpwnam(RUNUSER);      
+	if(userinfo){
+		setuid(userinfo->pw_uid);
+		seteuid(userinfo->pw_uid);
+	} else {
+		fprintf(stderr, "No such user: %s\n", RUNUSER);
+		exit(1);
+	}
+
+	if(pipe(fd)==-1){
+		perror("pipe");
+		exit(1);
+	}
+	if((child=fork())==-1){
+		perror("fork");
+		exit(1);
+	}
+	if(child==0){ /* We are the child */
+		close(fd[1]); /* Child will only be reading from, not writing to parent */
+		dup2(fd[0], 0);
+		/* Execute logger */
+		//execlp("multilog", "multilog", "/tmp/test", NULL);
+		argv++;
+		execvp(argv[0], argv);
+	}
+
+	/* We are Parent */
+	close(fd[0]); /* Write to the child */
+
+	for(;;) {
+		r = recvfrom(s1, buf, SIZE, 0, 0, 0);
+		if (r < 0) {
+			perror("recvfrom");
+			continue;
+		}
+		while (r) {
+			w = write(fd[1], buf, r);
+			if (w < 0) {
+				perror("write");
+				exit(1);
+			}
+			r -= w;
+		}
+		write(fd[1], "\n", 1);
+	}
+}