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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2023-06-15 16:21:05 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2023-06-15 16:39:14 +0200
commit849e6718448793b12d7c6641d59779ca12a2ba08 (patch)
treefa76f15435517cbfdfadef23411f64244a861162 /lib/sqfs
parentd748c7114d2f06378ad0c76b6c981521dbcee92d (diff)
libsquashfs: cleanup the flag situation on istream/ostream functions
- The ostream creation functions already have flag arguments, but make them an sqfs_u32 instead of int. - Add flag arguments to the istream functions, sanitzie and forward them when opening the handle. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'lib/sqfs')
-rw-r--r--lib/sqfs/src/unix/istream.c23
-rw-r--r--lib/sqfs/src/unix/ostream.c8
-rw-r--r--lib/sqfs/src/win32/istream.c23
-rw-r--r--lib/sqfs/src/win32/ostream.c17
4 files changed, 53 insertions, 18 deletions
diff --git a/lib/sqfs/src/unix/istream.c b/lib/sqfs/src/unix/istream.c
index fd2f120..a0a3469 100644
--- a/lib/sqfs/src/unix/istream.c
+++ b/lib/sqfs/src/unix/istream.c
@@ -113,11 +113,16 @@ static void file_destroy(sqfs_object_t *obj)
}
int sqfs_istream_open_handle(sqfs_istream_t **out, const char *path,
- sqfs_file_handle_t fd)
+ sqfs_file_handle_t fd, sqfs_u32 flags)
{
- file_istream_t *file = calloc(1, sizeof(*file));
- sqfs_istream_t *strm = (sqfs_istream_t *)file;
+ file_istream_t *file;
+ sqfs_istream_t *strm;
+ if (flags & ~(SQFS_FILE_OPEN_ALL_FLAGS))
+ return SQFS_ERROR_UNSUPPORTED;
+
+ file = calloc(1, sizeof(*file));
+ strm = (sqfs_istream_t *)file;
if (file == NULL)
return SQFS_ERROR_ALLOC;
@@ -149,16 +154,22 @@ int sqfs_istream_open_handle(sqfs_istream_t **out, const char *path,
return 0;
}
-int sqfs_istream_open_file(sqfs_istream_t **out, const char *path)
+int sqfs_istream_open_file(sqfs_istream_t **out, const char *path,
+ sqfs_u32 flags)
{
sqfs_file_handle_t fd;
int ret;
- ret = sqfs_open_native_file(&fd, path, SQFS_FILE_OPEN_READ_ONLY);
+ flags |= SQFS_FILE_OPEN_READ_ONLY;
+
+ if (flags & (SQFS_FILE_OPEN_OVERWRITE | SQFS_FILE_OPEN_NO_SPARSE))
+ return SQFS_ERROR_ARG_INVALID;
+
+ ret = sqfs_open_native_file(&fd, path, flags);
if (ret)
return ret;
- ret = sqfs_istream_open_handle(out, path, fd);
+ ret = sqfs_istream_open_handle(out, path, fd, flags);
if (ret != 0) {
int temp = errno;
close(fd);
diff --git a/lib/sqfs/src/unix/ostream.c b/lib/sqfs/src/unix/ostream.c
index 89982c1..efdc3cd 100644
--- a/lib/sqfs/src/unix/ostream.c
+++ b/lib/sqfs/src/unix/ostream.c
@@ -144,7 +144,7 @@ static const char *file_get_filename(sqfs_ostream_t *strm)
}
int sqfs_ostream_open_handle(sqfs_ostream_t **out, const char *path,
- sqfs_file_handle_t fd, int flags)
+ sqfs_file_handle_t fd, sqfs_u32 flags)
{
file_ostream_t *file = calloc(1, sizeof(*file));
sqfs_ostream_t *strm = (sqfs_ostream_t *)file;
@@ -183,12 +183,16 @@ int sqfs_ostream_open_handle(sqfs_ostream_t **out, const char *path,
return 0;
}
-int sqfs_ostream_open_file(sqfs_ostream_t **out, const char *path, int flags)
+int sqfs_ostream_open_file(sqfs_ostream_t **out, const char *path,
+ sqfs_u32 flags)
{
sqfs_file_handle_t fd;
int ret;
*out = NULL;
+ if (flags & SQFS_FILE_OPEN_READ_ONLY)
+ return SQFS_ERROR_ARG_INVALID;
+
ret = sqfs_open_native_file(&fd, path, flags);
if (ret)
return ret;
diff --git a/lib/sqfs/src/win32/istream.c b/lib/sqfs/src/win32/istream.c
index ba44c0b..3f7eb83 100644
--- a/lib/sqfs/src/win32/istream.c
+++ b/lib/sqfs/src/win32/istream.c
@@ -118,12 +118,17 @@ static void file_destroy(sqfs_object_t *obj)
}
int sqfs_istream_open_handle(sqfs_istream_t **out, const char *path,
- sqfs_file_handle_t hnd)
+ sqfs_file_handle_t hnd, sqfs_u32 flags)
{
- file_istream_t *file = calloc(1, sizeof(*file));
- sqfs_istream_t *strm = (sqfs_istream_t *)file;
+ file_istream_t *file;
+ sqfs_istream_t *strm;
BOOL ret;
+ if (flags & ~(SQFS_FILE_OPEN_ALL_FLAGS))
+ return SQFS_ERROR_UNSUPPORTED;
+
+ file = calloc(1, sizeof(*file));
+ strm = (sqfs_istream_t *)file;
if (file == NULL)
return SQFS_ERROR_ALLOC;
@@ -158,16 +163,22 @@ int sqfs_istream_open_handle(sqfs_istream_t **out, const char *path,
return 0;
}
-int sqfs_istream_open_file(sqfs_istream_t **out, const char *path)
+int sqfs_istream_open_file(sqfs_istream_t **out, const char *path,
+ sqfs_u32 flags)
{
sqfs_file_handle_t hnd;
int ret;
- ret = sqfs_open_native_file(&hnd, path, SQFS_FILE_OPEN_READ_ONLY);
+ flags |= SQFS_FILE_OPEN_READ_ONLY;
+
+ if (flags & (SQFS_FILE_OPEN_OVERWRITE | SQFS_FILE_OPEN_NO_SPARSE))
+ return SQFS_ERROR_ARG_INVALID;
+
+ ret = sqfs_open_native_file(&hnd, path, flags);
if (ret)
return ret;
- ret = sqfs_istream_open_handle(out, path, hnd);
+ ret = sqfs_istream_open_handle(out, path, hnd, flags);
if (ret) {
DWORD temp = GetLastError();
CloseHandle(hnd);
diff --git a/lib/sqfs/src/win32/ostream.c b/lib/sqfs/src/win32/ostream.c
index 3e6a8a7..3ebeb8b 100644
--- a/lib/sqfs/src/win32/ostream.c
+++ b/lib/sqfs/src/win32/ostream.c
@@ -131,12 +131,17 @@ static const char *file_get_filename(sqfs_ostream_t *strm)
}
int sqfs_ostream_open_handle(sqfs_ostream_t **out, const char *path,
- sqfs_file_handle_t hnd, int flags)
+ sqfs_file_handle_t hnd, sqfs_u32 flags)
{
- file_ostream_t *file = calloc(1, sizeof(*file));
- sqfs_ostream_t *strm = (sqfs_ostream_t *)file;
+ file_ostream_t *file;
+ sqfs_ostream_t *strm;
BOOL ret;
+ if (flags & ~(SQFS_FILE_OPEN_ALL_FLAGS))
+ return SQFS_ERROR_UNSUPPORTED;
+
+ file = calloc(1, sizeof(*file));
+ strm = (sqfs_ostream_t *)file;
if (file == NULL)
return SQFS_ERROR_ALLOC;
@@ -170,12 +175,16 @@ int sqfs_ostream_open_handle(sqfs_ostream_t **out, const char *path,
return 0;
}
-int sqfs_ostream_open_file(sqfs_ostream_t **out, const char *path, int flags)
+int sqfs_ostream_open_file(sqfs_ostream_t **out, const char *path,
+ sqfs_u32 flags)
{
sqfs_file_handle_t hnd;
int ret;
*out = NULL;
+ if (flags & SQFS_FILE_OPEN_READ_ONLY)
+ return SQFS_ERROR_ARG_INVALID;
+
ret = sqfs_open_native_file(&hnd, path, flags);
if (ret)
return ret;