// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+// Protocol:
+// 1. startup
+// 2. initialize (setuid, ctx-migrate, chroot, ...)
+// 3. send "." token to fd 3
+// 4. wait one character on fd 1
+// 5. process this character and consume further characters from fd 1 as far
+// as needed
+// 6. go to 3) (or exit)
+
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "internal.h"
#include "vserver.h"
#include "util.h"
-#include "wrappers.h"
-#include "wrappers-vserver.h"
#include <getopt.h>
#include <stdlib.h>
#include <stdbool.h>
#include <grp.h>
#include <pwd.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#define ENSC_WRAPPERS_PREFIX "rpm-fake-resolver: "
+#define ENSC_WRAPPERS_VSERVER 1
+#define ENSC_WRAPPERS_UNISTD 1
+#define ENSC_WRAPPERS_FCNTL 1
+#include <wrappers.h>
#define MAX_RQSIZE 0x1000
uint8_t c;
while (true) {
- Ewrite(2, ".", 1);
+ Ewrite(3, ".", 1);
Eread (0, &c, sizeof c);
switch (c) {
case 'P' : do_getpwnam(); break;
static void
daemonize(struct ArgInfo const UNUSED * args, int pid_fd)
{
- pid_t pid = Efork();
+ int p[2];
+ pid_t pid;
+ char c;
+
+ Epipe(p);
+ pid = Efork();
+
if (pid!=0) {
if (pid_fd!=-1) {
char buf[sizeof(id_t)*3 + 2];
}
_exit(0);
}
+ Eclose(p[1]);
+ read(p[0], &c, 1);
+ Eclose(p[0]);
+}
+
+static void
+activateContext(xid_t xid)
+{
+ if (vc_isSupported(vcFEATURE_MIGRATE)) {
+#warning TODO: activate the context here or migrate to it
+ abort();
+ }
+ else
+ Evc_new_s_context(xid, 0, S_CTX_INFO_LOCK);
+ //Evc_new_s_context(args.ctx, ~(VC_CAP_SETGID|VC_CAP_SETUID), S_CTX_INFO_LOCK);
}
int main(int argc, char * argv[])
{
struct ArgInfo args = {
- .ctx = VC_RANDCTX,
+ .ctx = VC_DYNAMIC_XID,
.uid = 99,
.gid = 99,
- .do_fork = false,
+ .do_fork = true,
.pid_file = 0,
.chroot = 0
};
int pid_fd = -1;
+#ifndef __dietlibc__
+# warning *** rpm-fake-resolver is built against glibc; please do not report errors before trying a dietlibc version ***
+ WRITE_MSG(2,
+ "*** rpm-fake-resolver was built with glibc; please do ***\n"
+ "*** not report errors before trying a dietlibc version. ***\n");
+#endif
+
parseArgs(&args, argc, argv);
if (args.pid_file && args.do_fork)
- pid_fd = Eopen(args.pid_file, O_CREAT|O_WRONLY, 0644);
+ pid_fd = EopenD(args.pid_file, O_CREAT|O_WRONLY, 0644);
if (args.chroot) Echroot(args.chroot);
Echdir("/");
- //Evc_new_s_context(args.ctx, ~(VC_CAP_SETGID|VC_CAP_SETUID), S_CTX_INFO_LOCK);
- Evc_new_s_context(args.ctx, 0, S_CTX_INFO_LOCK);
+ activateContext(args.ctx);
Esetgroups(0, &args.gid);
Esetgid(args.gid);
Esetuid(args.uid);