ujail: DT_STRTAB uses d_ptr in d_un union (not d_val)

see
https://docs.oracle.com/cd/E19683-01/817-3677/chapter6-42444/index.html

Signed-off-by: Etienne CHAMPETIER <champetier.etienne@gmail.com>

diff --git a/jail/elf.c b/jail/elf.c
index 7c52880..46c19df 100644 (file)
--- a/jail/elf.c
+++ b/jail/elf.c
@@ -182,7 +182,7 @@ static int elf32_scan_dynamic(const char *map, int dyn_offset, int dyn_size, int
                if (curr->d_tag != DT_STRTAB)
                        continue;
 
                if (curr->d_tag != DT_STRTAB)
                        continue;
 

-               strtab = map + (curr->d_un.d_val - load_offset);
+               strtab = map + (curr->d_un.d_ptr - load_offset);

                break;
        }
 
                break;
        }
 


@@ -216,7 +216,7 @@ static int elf64_scan_dynamic(const char *map, int dyn_offset, int dyn_size, int
                if (curr->d_tag != DT_STRTAB)
                        continue;
 
                if (curr->d_tag != DT_STRTAB)
                        continue;
 

-               strtab = map + (curr->d_un.d_val - load_offset);
+               strtab = map + (curr->d_un.d_ptr - load_offset);

                break;
        }
 
                break;
        }