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[apr] Scan-build: Fix multiple dead assignments in sha2.c

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This commit is contained in:
Andrey Volk 2020-02-14 01:54:22 +04:00
parent 5378eae101
commit 19aabde9c5
1 changed files with 29 additions and 0 deletions
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29
libs/apr/random/unix/sha2.c
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@ -444,6 +444,16 @@ void apr__SHA256_Transform(SHA256_CTX* context, const sha2_word32* data) {
/* Clean up */
a = b = c = d = e = f = g = h = T1 = T2 = 0;
assert(a==0);
assert(b==0);
assert(c==0);
assert(d==0);
assert(e==0);
assert(f==0);
assert(g==0);
assert(h==0);
assert(T1==0);
assert(T2==0);
}
#endif /* SHA2_UNROLL_TRANSFORM */
@ -478,6 +488,8 @@ void apr__SHA256_Update(SHA256_CTX* context, const sha2_byte *data, size_t len)
context->bitcount += len << 3;
/* Clean up: */
usedspace = freespace = 0;
assert(usedspace==0);
assert(freespace==0);
return;
}
}
@ -495,6 +507,8 @@ void apr__SHA256_Update(SHA256_CTX* context, const sha2_byte *data, size_t len)
}
/* Clean up: */
usedspace = freespace = 0;
assert(usedspace==0);
assert(freespace==0);
}
void apr__SHA256_Final(sha2_byte digest[], SHA256_CTX* context) {
@ -559,6 +573,7 @@ void apr__SHA256_Final(sha2_byte digest[], SHA256_CTX* context) {
/* Clean up state data: */
MEMSET_BZERO(context, sizeof(*context));
usedspace = 0;
assert(usedspace==0);
}
char *apr__SHA256_End(SHA256_CTX* context, char buffer[]) {
@ -768,6 +783,16 @@ void apr__SHA512_Transform(SHA512_CTX* context, const sha2_word64* data) {
/* Clean up */
a = b = c = d = e = f = g = h = T1 = T2 = 0;
assert(a==0);
assert(b==0);
assert(c==0);
assert(d==0);
assert(e==0);
assert(f==0);
assert(g==0);
assert(h==0);
assert(T1==0);
assert(T2==0);
}
#endif /* SHA2_UNROLL_TRANSFORM */
@ -802,6 +827,8 @@ void apr__SHA512_Update(SHA512_CTX* context, const sha2_byte *data, size_t len)
ADDINC128(context->bitcount, len << 3);
/* Clean up: */
usedspace = freespace = 0;
assert(usedspace==0);
assert(freespace==0);
return;
}
}
@ -819,6 +846,8 @@ void apr__SHA512_Update(SHA512_CTX* context, const sha2_byte *data, size_t len)
}
/* Clean up: */
usedspace = freespace = 0;
assert(usedspace==0);
assert(freespace==0);
}
void apr__SHA512_Last(SHA512_CTX* context) {