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--- a/ntreg.c
+++ b/ntreg.c
@@ -2667,21 +2667,23 @@
value = (char *)get_val_data(hdesc, nkofs, vex.name, vex.type, TPF_VK_EXACT);
len = get_val_len(hdesc, nkofs, vex.name, TPF_VK_EXACT);
- if (vex.type == REG_BINARY) {
- fprintf(file, "\"%s\"=hex:", vex.name);
- } else {
- fprintf(file, "\"%s\"=hex(%x):", vex.name, vex.type);
- }
- byte = 0;
- while (byte < len) { /* go byte by byte.. probably slow.. */
- fprintf(file, "%02x,", (unsigned char)value[byte]);
- byte++;
- if (!(byte % 20)) fprintf(file, "\\\r\n ");
- }
- fprintf(file, "%02x\r\n", (unsigned char)value[byte]);
- }
+ if (value && len >= 0) {
+ if (vex.type == REG_BINARY) {
+ fprintf(file, "\"%s\"=hex:", vex.name);
+ } else {
+ fprintf(file, "\"%s\"=hex(%x):", vex.name, vex.type);
+ }
+ byte = 0;
+ while (byte < len) { /* go byte by byte.. probably slow.. */
+ fprintf(file, "%02x,", (unsigned char)value[byte]);
+ byte++;
+ if (!(byte % 20)) fprintf(file, "\\\r\n ");
+ }
+ fprintf(file, "%02x\r\n", (unsigned char)value[byte]);
- FREE(vex.name);
+ FREE(vex.name);
+ }
+ }
}
}
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