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Use exactly the same checks in excluded() as in inlist(): ignore stabs and

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stringless symbols in excluded(); check for too-small (nonzero) string table
offsets in inlist().
This commit is contained in:
Bruce Evans 1995-01-21 10:24:18 +00:00
parent 60efec1dab
commit 742c88a03a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=5763
1 changed files with 4 additions and 6 deletions
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10
usr.bin/symorder/symorder.c
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@ -267,14 +267,10 @@ inlist(p)
register char *nam;
register struct nlist *op;
if (p->n_type & N_STAB)
if (p->n_type & N_STAB || p->n_un.n_strx == 0)
return (-1);
if (p->n_un.n_strx == 0)
return (-1);
if (p->n_un.n_strx >= strtabsize)
if (p->n_un.n_strx < sizeof(int) || p->n_un.n_strx >= strtabsize)
badfmt("corrupted symbol table");
nam = &strings[p->n_un.n_strx - sizeof(int)];
for (op = &order[nsym]; --op >= order; ) {
if (strcmp(op->n_un.n_name, nam) != 0)
@ -291,6 +287,8 @@ excluded(p)
register char *nam;
register int x;
if (p->n_type & N_STAB || p->n_un.n_strx == 0)
return (0);
if (p->n_un.n_strx < sizeof(int) || p->n_un.n_strx >= strtabsize)
badfmt("corrupted symbol table");
nam = &strings[p->n_un.n_strx - sizeof(int)];