Fix symbol handling (stripped kernels)

diff --git a/sys/lib/libsa/exec.c b/sys/lib/libsa/exec.c
index c6b05ed..c712720 100644 (file)
--- a/sys/lib/libsa/exec.c
+++ b/sys/lib/libsa/exec.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: exec.c,v 1.12 1997/03/30 20:13:04 mickey Exp $        */
+/*     $OpenBSD: exec.c,v 1.13 1997/03/31 04:20:08 weingart Exp $      */
 /*     $NetBSD: exec.c,v 1.15 1996/10/13 02:29:01 christos Exp $       */
 
 /*-
@@ -53,13 +53,13 @@ exec(path, loadaddr, howto)
        void *loadaddr;
        int howto;
 {
-       register int io;
+       int io;
 #ifndef INSECURE
        struct stat sb;
 #endif
        struct exec x;
        int i;
-       register char *addr;
+       char *addr;
 #ifdef EXEC_DEBUG
        char *daddr, *etxt;
 #endif
@@ -127,29 +127,34 @@ exec(path, loadaddr, howto)
                *addr++ = 0;
 
         /* Symbols */
-       ssym = addr;
-       bcopy(&x.a_syms, addr, sizeof(x.a_syms));
-       addr += sizeof(x.a_syms);
-       printf("+[%ld", x.a_syms);
-       if (read(io, addr, x.a_syms) != x.a_syms)
-               goto shread;
-       addr += x.a_syms;
-
-       if (read(io, &i, sizeof(int)) != sizeof(int))
-               goto shread;
-
-       bcopy(&i, addr, sizeof(int));
-       if (i) {
-               i -= sizeof(int);
-               addr += sizeof(int);
-               if (read(io, addr, i) != i)
+       if(x.a_syms){
+               ssym = addr;
+               bcopy(&x.a_syms, addr, sizeof(x.a_syms));
+               addr += sizeof(x.a_syms);
+               printf("+[%ld", x.a_syms);
+               if (read(io, addr, x.a_syms) != x.a_syms)
+                       goto shread;
+               addr += x.a_syms;
+
+               if (read(io, &i, sizeof(int)) != sizeof(int))
+                       goto shread;
+
+               bcopy(&i, addr, sizeof(int));
+               if (i) {
+                       i -= sizeof(int);
+                       addr += sizeof(int);
+                       if (read(io, addr, i) != i)
                        goto shread;
-               addr += i;
+                       addr += i;
+               }
+
+               /* and that many bytes of string table */
+               printf("+%d]", i);
+       }else{
+               ssym = 0;
+               esym = 0;
        }
 
-       /* and that many bytes of string table */
-       printf("+%d]", i);
-
        close(io);
 
 #define        round_to_size(x) \