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compat: Ensure alignment of reading dword width #12276

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Merged
edsiper merged 1 commit into from
Aug 13, 2026
+10 −2
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compat: Ensure alignment of reading dword width #12276

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12 changes: 10 additions & 2 deletions include/fluent-bit/flb_compat.h
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,8 @@
#ifndef FLB_COMPAT_H
#define FLB_COMPAT_H

#include <string.h>
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cosmo0920 marked this conversation as resolved.

/*
* libmonkey exposes compat macros for <unistd.h>, which some platforms lack,
* so include the header here.
Expand Down Expand Up @@ -204,8 +206,14 @@ static inline uint32_t __attribute__((optimize("-O0"))) FLB_ALIGNED_DWORD_READ(u
#endif

#else
static inline uint32_t FLB_ALIGNED_DWORD_READ(unsigned char *source) {
return *((uint32_t *) source);
static inline uint32_t FLB_ALIGNED_DWORD_READ(unsigned char *source)
{
uint32_t result;

/* MessagePack extension payloads are not guaranteed to be aligned. */
memcpy(&result, source, sizeof(result));

return result;
}
#endif

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