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diff -up cups-1.4.2/backend/ipp.c.str3458 cups-1.4.2/backend/ipp.c
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--- cups-1.4.2/backend/ipp.c.str3458 2009-12-22 13:04:25.021208333 +0000
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+++ cups-1.4.2/backend/ipp.c 2009-12-22 13:04:26.570082893 +0000
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@@ -802,6 +802,15 @@ main(int argc, /* I - Number of comm
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return (CUPS_BACKEND_STOP);
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}
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+ else if (ipp_status == IPP_NOT_AUTHORIZED || ipp_status == IPP_FORBIDDEN)
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+ {
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+ if (!strncmp(httpGetField(http, HTTP_FIELD_WWW_AUTHENTICATE),
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+ "Negotiate", 9))
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+ auth_info_required = "negotiate";
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+
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+ fprintf(stderr, "ATTR: auth-info-required=%s\n", auth_info_required);
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+ return (CUPS_BACKEND_AUTH_REQUIRED);
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+ }
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else
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{
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_cupsLangPrintf(stderr,
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