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修正asn1的tag掩码。完善asn1的tag测试，使其覆盖所有可能值。 #1752

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修正asn1的tag掩码。完善asn1的tag测试，使其覆盖所有可能值。 #1752

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c96c10e
fix: tag mask错误
dihambo Sep 27, 2024
c0b0dfc
fix: 覆盖所有tag值
dihambo Sep 27, 2024
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2 changes: 1 addition & 1 deletion src/asn1.c
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ const char *asn1_tag_name(int tag)
}

switch (tag & 0xc0) {
case ASN1_TAG_CONTENT_SPECIFIC: return asn1_tag_index[tag & 0xe0];
case ASN1_TAG_CONTENT_SPECIFIC: return asn1_tag_index[tag & 0x1f];
case ASN1_TAG_APPLICATION: return "Application";
case ASN1_TAG_PRIVATE: return "Private";
}
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22 changes: 12 additions & 10 deletions tests/asn1test.c
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Original file line number Diff line number Diff line change
Expand Up @@ -59,16 +59,18 @@ static void print_octets(const uint8_t *o, size_t olen)

static int test_asn1_tag(void)
{
int i;
format_print(stderr, 0, 0, "Tags:\n");
for (i = 1; i <= 13; i++) {
format_print(stderr, 0, 4, "%s (0x%02x)\n", asn1_tag_name(i), i);
}
for (i = 18; i <= 30; i++) {
format_print(stderr, 0, 4, "%s (0x%02x)\n", asn1_tag_name(i), i);
}
printf("%s() ok\n", __FUNCTION__);
return 1;
int tag;
format_print(stderr, 0, 0, "Testing all tag values from 0 to 255:\n");
for (tag = 0; tag <= 255; tag++) {
const char *name = asn1_tag_name(tag);
if (name) {
format_print(stderr, 0, 4, "%s (0x%02x)\n", name, tag);
} else {
format_print(stderr, 0, 4, "Unknown Tag (0x%02x)\n", tag);
}
}
printf("%s() ok\n", __FUNCTION__);
return 1;
}

static int test_asn1_length(void)
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