49 lines
1.0 KiB
Diff
49 lines
1.0 KiB
Diff
diff --git a/dlls/dnsapi/libresolv.c b/dlls/dnsapi/libresolv.c
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index ac52147..0f8c2ef 100644
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--- wine-6.9/dlls/dnsapi/libresolv.c
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+++ wine-6.9/dlls/dnsapi/libresolv.c
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@@ -57,6 +57,43 @@
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WINE_DEFAULT_DEBUG_CHANNEL(dnsapi);
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+/* code from glibc's resolv/ns_name.c, with errno setting removed */
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+/*%
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+ * Advance *ptrptr to skip over the compressed name it points at.
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+ *
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+ * return:
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+ *\li 0 on success, -1 (with errno set) on failure.
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+ */
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+#ifndef __GLIBC__
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+static int
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+ns_name_skip(const u_char **ptrptr, const u_char *eom)
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+{
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+ const u_char *cp;
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+ u_int n;
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+
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+ cp = *ptrptr;
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+ while (cp < eom && (n = *cp++) != 0) {
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+ /* Check for indirection. */
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+ switch (n & NS_CMPRSFLGS) {
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+ case 0: /*%< normal case, n == len */
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+ cp += n;
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+ continue;
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+ case NS_CMPRSFLGS: /*%< indirection */
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+ cp++;
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+ break;
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+ default: /*%< illegal type */
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+ return (-1);
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+ }
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+ break;
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+ }
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+ if (cp > eom) {
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+ return (-1);
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+ }
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+ *ptrptr = cp;
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+ return (0);
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+}
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+#endif
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+
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static const char *debugstr_type( unsigned short type )
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{
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const char *str;
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