Libc-763.11.tar.gz

[apple/libc.git] / gen / FreeBSD / sysctl.c.patch

diff --git a/gen/FreeBSD/sysctl.c.patch b/gen/FreeBSD/sysctl.c.patch
new file mode 100644 (file)
index 0000000..7fa1c90
--- /dev/null
+++ b/gen/FreeBSD/sysctl.c.patch
@@ -0,0 +1,38 @@
+--- sysctl.c.orig      2010-06-30 01:03:07.000000000 -0700
++++ sysctl.c   2010-07-01 23:10:13.000000000 -0700
+@@ -53,8 +53,34 @@ sysctl(name, namelen, oldp, oldlenp, new
+       void *oldp, *newp;
+       size_t *oldlenp, newlen;
+ {
+-      if (name[0] != CTL_USER)
++      if (name[0] != CTL_USER) {
++              if (namelen == 2 && name[0] == CTL_KERN && name[1] == KERN_EXEC) {
++                      /*
++                       * 7723306: intercept kern.exec and fake a return of
++                       * a dummy string ("/" in this case)
++                       */
++                      if (newp != NULL) {
++                              errno = EPERM;
++                              return -1;
++                      }
++                      if (oldp == NULL) {
++                              if (oldlenp != NULL) *oldlenp = 2;
++                              return 0;
++                      }
++                      if (oldlenp == NULL) {
++                              errno = EFAULT;
++                              return -1;
++                      }
++                      if (*oldlenp < 2) {
++                              errno = ENOMEM;
++                              return -1;
++                      }
++                      memmove(oldp, "/", 2);
++                      *oldlenp = 2;
++                      return 0;
++              }
+               return (__sysctl(name, namelen, oldp, oldlenp, newp, newlen));
++      }
+ 
+       if (newp != NULL) {
+               errno = EPERM;