Max/TeamTofuShop_capnhook
1
0
Fork 0
mirror of https://gitea.tendokyu.moe/TeamTofuShop/capnhook.git synced 2026-09-30 19:08:00 +03:00
Code Issues Packages Projects Releases Wiki Activity

hook/iobuf.c: Add readers and writers for 64-bit uints

Browse Source
This commit is contained in:
Decaf Code
2019-10-18 19:05:37 -04:00
parent 51e674b75a
commit f084531454
2 changed files with 94 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
hook/iobuf.c
+90
View File
@@ -124,6 +124,31 @@ HRESULT iobuf_read_be32(struct const_iobuf *src, uint32_t *out)
return S_OK;
}
HRESULT iobuf_read_be64(struct const_iobuf *src, uint64_t *out)
{
uint64_t value;
assert(src != NULL);
assert(out != NULL);
if (src->pos + sizeof(uint64_t) > src->nbytes) {
return HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
}
value = ((uint64_t) src->bytes[src->pos++]) << 56;
value |= ((uint64_t) src->bytes[src->pos++]) << 48;
value |= ((uint64_t) src->bytes[src->pos++]) << 40;
value |= ((uint64_t) src->bytes[src->pos++]) << 32;
value |= ((uint64_t) src->bytes[src->pos++]) << 24;
value |= ((uint64_t) src->bytes[src->pos++]) << 16;
value |= ((uint64_t) src->bytes[src->pos++]) << 8;
value |= ((uint64_t) src->bytes[src->pos++]);
*out = value;
return S_OK;
}
HRESULT iobuf_read_le16(struct const_iobuf *src, uint16_t *out)
{
uint16_t value;
@@ -164,6 +189,31 @@ HRESULT iobuf_read_le32(struct const_iobuf *src, uint32_t *out)
return S_OK;
}
HRESULT iobuf_read_le64(struct const_iobuf *src, uint64_t *out)
{
uint64_t value;
assert(src != NULL);
assert(out != NULL);
if (src->pos + sizeof(uint64_t) > src->nbytes) {
return HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
}
value = ((uint64_t) src->bytes[src->pos++]);
value |= ((uint64_t) src->bytes[src->pos++]) << 8;
value |= ((uint64_t) src->bytes[src->pos++]) << 16;
value |= ((uint64_t) src->bytes[src->pos++]) << 24;
value |= ((uint64_t) src->bytes[src->pos++]) << 32;
value |= ((uint64_t) src->bytes[src->pos++]) << 40;
value |= ((uint64_t) src->bytes[src->pos++]) << 48;
value |= ((uint64_t) src->bytes[src->pos++]) << 56;
*out = value;
return S_OK;
}
HRESULT iobuf_write(struct iobuf *dest, const void *bytes, size_t nbytes)
{
assert(dest != NULL);
@@ -222,6 +272,26 @@ HRESULT iobuf_write_be32(struct iobuf *dest, uint32_t value)
return S_OK;
}
HRESULT iobuf_write_be64(struct iobuf *dest, uint64_t value)
{
assert(dest != NULL);
if (dest->pos + sizeof(uint64_t) > dest->nbytes) {
return HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
}
dest->bytes[dest->pos++] = value >> 56;
dest->bytes[dest->pos++] = value >> 48;
dest->bytes[dest->pos++] = value >> 40;
dest->bytes[dest->pos++] = value >> 32;
dest->bytes[dest->pos++] = value >> 24;
dest->bytes[dest->pos++] = value >> 16;
dest->bytes[dest->pos++] = value >> 8;
dest->bytes[dest->pos++] = value;
return S_OK;
}
HRESULT iobuf_write_le16(struct iobuf *dest, uint16_t value)
{
assert(dest != NULL);
@@ -251,3 +321,23 @@ HRESULT iobuf_write_le32(struct iobuf *dest, uint32_t value)
return S_OK;
}
HRESULT iobuf_write_le64(struct iobuf *dest, uint64_t value)
{
assert(dest != NULL);
if (dest->pos + sizeof(uint64_t) > dest->nbytes) {
return HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
}
dest->bytes[dest->pos++] = value;
dest->bytes[dest->pos++] = value >> 8;
dest->bytes[dest->pos++] = value >> 16;
dest->bytes[dest->pos++] = value >> 24;
dest->bytes[dest->pos++] = value >> 32;
dest->bytes[dest->pos++] = value >> 40;
dest->bytes[dest->pos++] = value >> 48;
dest->bytes[dest->pos++] = value >> 56;
return S_OK;
}
hook/iobuf.h
+4
View File
@@ -25,12 +25,16 @@ HRESULT iobuf_read(struct const_iobuf *src, void *bytes, size_t nbytes);
HRESULT iobuf_read_8(struct const_iobuf *src, uint8_t *value);
HRESULT iobuf_read_be16(struct const_iobuf *src, uint16_t *value);
HRESULT iobuf_read_be32(struct const_iobuf *src, uint32_t *value);
HRESULT iobuf_read_be64(struct const_iobuf *src, uint64_t *value);
HRESULT iobuf_read_le16(struct const_iobuf *src, uint16_t *value);
HRESULT iobuf_read_le32(struct const_iobuf *src, uint32_t *value);
HRESULT iobuf_read_le64(struct const_iobuf *src, uint64_t *value);
HRESULT iobuf_write(struct iobuf *dest, const void *bytes, size_t nbytes);
HRESULT iobuf_write_8(struct iobuf *dest, uint8_t value);
HRESULT iobuf_write_be16(struct iobuf *dest, uint16_t value);
HRESULT iobuf_write_be32(struct iobuf *dest, uint32_t value);
HRESULT iobuf_write_be64(struct iobuf *dest, uint64_t value);
HRESULT iobuf_write_le16(struct iobuf *dest, uint16_t value);
HRESULT iobuf_write_le32(struct iobuf *dest, uint32_t value);
HRESULT iobuf_write_le64(struct iobuf *dest, uint64_t value);