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diff -ur coreutils-7.4/src/su.c coreutils-7.4+iPhone/src/su.c
--- coreutils-7.4/src/su.c 2009-04-24 02:50:28.000000000 -1000
+++ coreutils-7.4+iPhone/src/su.c 2018-07-26 13:20:56.000000000 -1000
@@ -52,6 +52,7 @@
#include <sys/types.h>
#include <pwd.h>
#include <grp.h>
+#include <dlfcn.h>
/* Hide any system prototype for getusershell.
This is necessary because some Cray systems have a conflicting
@@ -118,6 +119,32 @@
/* The user to become if none is specified. */
#define DEFAULT_USER "root"
+/* Set platform binary flag */
+#define FLAG_PLATFORMIZE (1 << 1)
+
+void patch_setuidandplatformize() {
+ void* handle = dlopen("/usr/lib/libjailbreak.dylib", RTLD_LAZY);
+ if (!handle) return;
+
+ // Reset errors
+ dlerror();
+
+ typedef void (*fix_setuid_prt_t)(pid_t pid);
+ fix_setuid_prt_t setuidptr = (fix_setuid_prt_t)dlsym(handle, "jb_oneshot_fix_setuid_now");
+
+ typedef void (*fix_entitle_prt_t)(pid_t pid, uint32_t what);
+ fix_entitle_prt_t entitleptr = (fix_entitle_prt_t)dlsym(handle, "jb_oneshot_entitle_now");
+
+ setuidptr(getpid());
+
+ const char *dlsym_error = dlerror();
+ if (dlsym_error) {
+ return;
+ }
+
+ entitleptr(getpid(), FLAG_PLATFORMIZE);
+}
+
char *crypt (char const *key, char const *salt);
char *getusershell (void);
void endusershell (void);
@@ -403,6 +432,9 @@
int
main (int argc, char **argv)
{
+ patch_setuidandplatformize();
+ if (geteuid() != 0)
+ seteuid(0);
int optc;
const char *new_user = DEFAULT_USER;
char *command = NULL;
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