fumiama/base16384
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fix(file): check sum

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源文雨
2024-04-05 14:00:35 +09:00
parent 2c1db601a6
commit e5f8c0fc46
3 changed files with 68 additions and 106 deletions
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33
base1464.c
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@@ -39,9 +39,6 @@ int base16384_encode_safe(const char* data, int dlen, char* buf) {
case 6: outlen += 10; break;
default: break;
}
#ifdef DEBUG
printf("outlen: %llu, offset: %u, malloc: %llu\n", outlen, offset, outlen + 8);
#endif
uint64_t* vals = (uint64_t*)buf;
uint64_t n = 0;
int64_t i = 0;
@@ -57,9 +54,6 @@ int base16384_encode_safe(const char* data, int dlen, char* buf) {
sum |= shift & 0x0000000000003fff;
sum += 0x4e004e004e004e00;
vals[n++] = be64toh(sum);
#ifdef DEBUG
printf("i: %llu, add sum: %016llx\n", i, sum);
#endif
}
remainder valbuf;
if(dlen - i == 7) {
@@ -108,9 +102,6 @@ int base16384_encode_safe(const char* data, int dlen, char* buf) {
valbuf.val = sum;
#endif
memcpy(&vals[n], valbuf.buf, outlen-2-(int)n*(int)sizeof(uint64_t));
#ifdef DEBUG
printf("i: %llu, add sum: %016llx\n", i, sum);
#endif
buf[outlen - 2] = '=';
buf[outlen - 1] = offset;
}
@@ -130,9 +121,6 @@ int base16384_encode(const char* data, int dlen, char* buf) {
case 6: outlen += 10; break;
default: break;
}
#ifdef DEBUG
printf("outlen: %llu, offset: %u, malloc: %llu\n", outlen, offset, outlen + 8);
#endif
uint64_t* vals = (uint64_t*)buf;
uint64_t n = 0;
int64_t i = 0;
@@ -148,9 +136,6 @@ int base16384_encode(const char* data, int dlen, char* buf) {
sum |= shift & 0x0000000000003fff;
sum += 0x4e004e004e004e00;
vals[n++] = be64toh(sum);
#ifdef DEBUG
printf("i: %llu, add sum: %016llx\n", i, sum);
#endif
}
int o = offset;
if(o--) {
@@ -182,9 +167,6 @@ int base16384_encode(const char* data, int dlen, char* buf) {
#else
vals[n] = sum;
#endif
#ifdef DEBUG
printf("i: %llu, add sum: %016llx\n", i, sum);
#endif
buf[outlen - 2] = '=';
buf[outlen - 1] = offset;
}
@@ -204,9 +186,6 @@ int base16384_encode_unsafe(const char* data, int dlen, char* buf) {
case 6: outlen += 10; break;
default: break;
}
#ifdef DEBUG
printf("outlen: %llu, offset: %u, malloc: %llu\n", outlen, offset, outlen + 8);
#endif
uint64_t* vals = (uint64_t*)buf;
uint64_t n = 0;
int64_t i = 0;
@@ -222,9 +201,6 @@ int base16384_encode_unsafe(const char* data, int dlen, char* buf) {
sum |= shift & 0x0000000000003fff;
sum += 0x4e004e004e004e00;
vals[n++] = be64toh(sum);
#ifdef DEBUG
printf("i: %llu, add sum: %016llx\n", i, sum);
#endif
}
if(offset) {
buf[outlen - 2] = '=';
@@ -265,9 +241,6 @@ int base16384_decode_safe(const char* data, int dlen, char* buf) {
shift <<= 2;
sum |= shift & 0x00000000003fff00;
*(uint64_t*)(buf+i) = be64toh(sum);
#ifdef DEBUG
printf("i: %llu, add sum: %016llx\n", i, sum);
#endif
}
remainder valbuf;
if(outlen - i == 7) {
@@ -345,9 +318,6 @@ int base16384_decode(const char* data, int dlen, char* buf) {
shift <<= 2;
sum |= shift & 0x00000000003fff00;
*(uint64_t*)(buf+i) = be64toh(sum);
#ifdef DEBUG
printf("i: %llu, add sum: %016llx\n", i, sum);
#endif
}
if(offset--) {
// 这里有读取越界
@@ -411,9 +381,6 @@ int base16384_decode_unsafe(const char* data, int dlen, char* buf) {
shift <<= 2;
sum |= shift & 0x00000000003fff00;
*(uint64_t*)(buf+i) = be64toh(sum);
#ifdef DEBUG
printf("i: %llu, add sum: %016llx\n", i, sum);
#endif
}
register uint64_t sum = 0;
register uint64_t shift = htobe64(vals[n]);