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Add value-range checks for user-definable macros

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Brian Pugh
2023-10-29 13:50:38 -07:00
parent f77214d1f0
commit 8f9427dd53
1 changed files with 17 additions and 0 deletions
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lfs.c
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@@ -8,6 +8,23 @@
#include "lfs.h" #include "lfs.h"
#include "lfs_util.h" #include "lfs_util.h"
// Configuration Sanity Check
#if (LFS_NAME_MAX <= 0) || (LFS_NAME_MAX > 1022)
#error "LFS_NAME_MAX must be in the range (0, 1022]"
#endif
#if (LFS_FILE_MAX <= 0) || (LFS_FILE_MAX > 4294967296)
#error "LFS_FILE_MAX must be in the range (0, 4294967296]"
#endif
#if (LFS_FILE_MAX > 2147483647)
#warning "LFS_FILE_MAX>2147483647; lfs_file_seek, lfs_file_size, and lfs_file_tell will not function properly."
#endif
#if (LFS_ATTR_MAX < 0) || (LFS_ATTR_MAX > 1022)
#error "LFS_ATTR_MAX must be in the range [0, 1022]"
#endif
// some constants used throughout the code // some constants used throughout the code
#define LFS_BLOCK_NULL ((lfs_block_t)-1) #define LFS_BLOCK_NULL ((lfs_block_t)-1)