Display nice error message on unavailable ret2csu (Gallopsled#1991)

Fixes Gallopsled#1941
gogo2464 · Sep 10, 2023 · 6cc1f98 · 6cc1f98
1 parent a973461
commit 6cc1f98
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/pwnlib/rop/rop.py b/pwnlib/rop/rop.py
@@ -1477,8 +1477,6 @@ def ret2csu(self, edi=Padding('edi'), rsi=Padding('rsi'),
         # Find an appropriate, non-library ELF.
         # Prioritise non-PIE binaries so we can use _fini
         exes = (elf for elf in self.elfs if not elf.library and elf.bits == 64)
-        if not exes:
-            log.error('No non-library binaries in [elfs]')
 
         nonpie = csu = None
         for elf in exes:
@@ -1488,6 +1486,8 @@ def ret2csu(self, edi=Padding('edi'), rsi=Padding('rsi'),
                 nonpie = elf
             elif '__libc_csu_init' in elf.symbols:
                 csu = elf
+        else:
+            log.error('No non-library binaries in [elfs]')
 
         if elf.pie:
             if nonpie: