1 files changed, 0 insertions, 115 deletions
diff --git a/ios-bootstrap/unrestrict.c b/ios-bootstrap/unrestrict.c
deleted file mode 100644
index 3c6ff56..0000000
--- a/ios-bootstrap/unrestrict.c
+++ /dev/null
@@ -1,115 +0,0 @@
-#define IB_LOG_NAME "unrestrict"
-#include "ib-log.h"
-#include "substitute.h"
-#include "substitute-internal.h"
-#include <stdlib.h>
-#include <syslog.h>
-#include <signal.h>
-#include <errno.h>
-#include <stdio.h>
-
-#define PROC_PIDFDVNODEINFO 1
-#define PROC_PIDFDVNODEINFO_SIZE 176
-int proc_pidfdinfo(int, int, int, void *, int);
-
-int main(int argc, char **argv) {
-    if (argc != 4) {
-        ib_log("unrestrict: wrong number of args");
-        return 1;
-    }
-
-    const char *pids = argv[1];
-    char *end;
-    long pid = strtol(pids, &end, 10);
-    if (!pids[0] || *end) {
-        ib_log("unrestrict: pid not an integer");
-        return 1;
-    }
-
-    const char *should_resume = argv[2];
-    if (strcmp(should_resume, "0") && strcmp(should_resume, "1")) {
-        ib_log("unrestrict: should_resume not 0 or 1");
-        return 1;
-    }
-
-    const char *is_exec = argv[3];
-    if (strcmp(is_exec, "0") && strcmp(is_exec, "1")) {
-        ib_log("unrestrict: is_exec not 0 or 1");
-        return 1;
-    }
-
-    /* double fork to avoid zombies */
-    int ret = fork();
-    if (ret == -1) {
-        ib_log("unrestrict: fork: %s", strerror(errno));
-        return 1;
-    } else if (ret) {
-        return 0;
-    }
-
-    if (IB_VERBOSE) {
-        ib_log("unrestrict: unrestricting %ld (sr=%s, ie=%s)", pid,
-               should_resume, is_exec);
-    }
-
-    int ec = 1;
-
-    mach_port_t task;
-    kern_return_t kr = task_for_pid(mach_task_self(), (pid_t) pid, &task);
-    if (kr) {
-        ib_log("unrestrict: TFP fail: %d", kr);
-        goto fail;
-    }
-
-    if (is_exec[0] == '1') {
-        int retries = 0;
-        int wait_us = 1;
-        while (1) {
-            /* The process might not have transitioned yet.  We set up a dummy fd
-             * 255 in the parent process which was marked CLOEXEC, so test if that
-             * still exists.  AFAICT, Substrate's equivalent to this is not
-             * actually correct.
-             * TODO cleanup
-             */
-            char buf[PROC_PIDFDVNODEINFO_SIZE];
-            /* A bug in proc_pidfdinfo makes it never return -1.  Yuck. */
-            errno = 0;
-            proc_pidfdinfo(pid, 255, PROC_PIDFDVNODEINFO, buf, sizeof(buf));
-            if (errno == EBADF) {
-                break;
-            } else if (errno) {
-                ib_log("proc_pidfdinfo: %s", strerror(errno));
-                goto fail;
-            }
-
-            if (retries++ == 20) {
-                ib_log("still in parent process after 20 retries");
-                goto fail;
-            }
-            wait_us *= 2;
-            if (wait_us > 200000)
-                wait_us = 200000;
-            while (usleep(wait_us))
-                ;
-        }
-    }
-
-    char *err = NULL;
-    int sret = substitute_ios_unrestrict(task, &err);
-    if (sret) {
-        ib_log("unrestrict: substitute_ios_unrestrict => %d (%s)",
-               sret, err);
-        ec = 1;
-    }
-
-    ec = 0;
-fail:
-    if (should_resume[0] == '1') {
-        if ((kill(pid, SIGCONT))) {
-            ib_log("unrestrict: kill SIGCONT: %s", strerror(errno));
-            return 1;
-        }
-    }
-
-    return ec;
-}