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Fix CNIOSHA1.h to support C++ interoperability #2523

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merged 1 commit into from
Sep 27, 2023
Merged

Fix CNIOSHA1.h to support C++ interoperability #2523

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12 changes: 12 additions & 0 deletions Sources/CNIOSHA1/include/CNIOSHA1.h
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,10 @@
#include <stdint.h>
#include <stddef.h>

#ifdef __cplusplus
extern "C" {
#endif

struct sha1_ctxt {
union {
uint8_t b8[20];
Expand All @@ -68,7 +72,12 @@ typedef struct sha1_ctxt SHA1_CTX;

#define SHA1_RESULTLEN (160/8)

#ifdef __cplusplus
#define __min_size(x) (x)
#else
#define __min_size(x) static (x)
#endif

extern void c_nio_sha1_init(struct sha1_ctxt *);
extern void c_nio_sha1_pad(struct sha1_ctxt *);
extern void c_nio_sha1_loop(struct sha1_ctxt *, const uint8_t *, size_t);
Expand All @@ -79,5 +88,8 @@ extern void c_nio_sha1_result(struct sha1_ctxt *, char[__min_size(SHA1_RESULTLEN
#define SHA1Update(x, y, z) c_nio_sha1_loop((x), (y), (z))
#define SHA1Final(x, y) c_nio_sha1_result((y), (x))

#ifdef __cplusplus
} /* extern "C" */
#endif

#endif /*_CRYPTO_SHA1_H_*/