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Fix one buffer overflow in 'typeset -p .sh.type' (#457)

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This small commit replaces one instance of memcmp with strncmp to
fix one of the buffer overflows that causes 'typeset -p .sh.type'
to crash (see also https://github.com/ksh93/ksh/issues/456).
This commit is contained in:
Johnothan King 2022-02-09 18:04:44 -08:00 committed by Martijn Dekker
parent f38494ea1d
commit a00fe6b7fd
1 changed files with 1 additions and 1 deletions
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2
src/cmd/ksh93/sh/nvtype.c
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@ -1473,7 +1473,7 @@ int sh_outtype(Sfio_t *out)
{
if(nv_isnull(tp) || !nv_isvtree(tp))
continue;
if(indent && (memcmp(tp->nvname,sh.prefix,n-1) || tp->nvname[n-1]!='.' || strchr(tp->nvname+n,'.')))
if(indent && (strncmp(tp->nvname,sh.prefix,n-1) || tp->nvname[n-1]!='.' || strchr(tp->nvname+n,'.')))
continue;
nv_settype(L_ARGNOD,tp,0);
if(indent)