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fix for signed char overflow.

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@1246 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Assar Westerlund
1997-02-19 14:23:35 +00:00
parent 8ec161d051
commit 9aff2eeb93
1 changed files with 12 additions and 5 deletions
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17
lib/otp/otp_db.c
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@@ -135,7 +135,10 @@ otp_get_internal (void *v, OtpContext *ctx, int lockp)
return -1; return -1;
} }
p += strlen(p) + 1; p += strlen(p) + 1;
ctx->n = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; {
unsigned char *up = (unsigned char *)p;
ctx->n = (up[0] << 24) | (up[1] << 16) | (up[2] << 8) | up[3];
}
p += 4; p += 4;
memcpy (ctx->key, p, OTPKEYSIZE); memcpy (ctx->key, p, OTPKEYSIZE);
p += OTPKEYSIZE; p += OTPKEYSIZE;
@@ -187,10 +190,14 @@ otp_put (void *v, OtpContext *ctx)
p += sizeof(zero); p += sizeof(zero);
strcpy (p, ctx->alg->name); strcpy (p, ctx->alg->name);
p += strlen(p) + 1; p += strlen(p) + 1;
*p++ = (ctx->n >> 24) & 0xFF; {
*p++ = (ctx->n >> 16) & 0xFF; unsigned char *up = (unsigned char *)p;
*p++ = (ctx->n >> 8) & 0xFF; *up++ = (ctx->n >> 24) & 0xFF;
*p++ = (ctx->n >> 0) & 0xFF; *up++ = (ctx->n >> 16) & 0xFF;
*up++ = (ctx->n >> 8) & 0xFF;
*up++ = (ctx->n >> 0) & 0xFF;
}
p += 4;
memcpy (p, ctx->key, OTPKEYSIZE); memcpy (p, ctx->key, OTPKEYSIZE);
p += OTPKEYSIZE; p += OTPKEYSIZE;
strcpy (p, ctx->seed); strcpy (p, ctx->seed);