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35 lines
904 B
35 lines
904 B
#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdint.h>
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/* The hexconvert function is only used to test reference vectors against
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* known answers. The contents of this file are therefore a component
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* to assist with test harnesses only
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*/
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int libscrypt_hexconvert(uint8_t *buf, size_t s, char *outbuf, size_t obs)
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{
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size_t i;
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int len = 0;
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if (!buf || s < 1 || obs < (s * 2 + 1))
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return 0;
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memset(outbuf, 0, obs);
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for(i=0; i<=(s-1); i++)
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{
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/* snprintf(outbuf, s,"%s...", outbuf....) has undefined results
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* and can't be used. Using offests like this makes snprintf
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* nontrivial. we therefore have use inescure sprintf() and
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* lengths checked elsewhere (start of function) */
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/*@ -bufferoverflowhigh @*/
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len += sprintf(outbuf+len, "%02x", (unsigned int) buf[i]);
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}
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return 1;
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}
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