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16 lines
377 B
C
16 lines
377 B
C
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#include <stdlib.h> // malloc
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#include <stdio.h> // sprintf
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char * atohex(unsigned char * a, size_t len, unsigned int * aalen){
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char *aa;
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//two bytes of output per byte of input, plus newline
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(*aalen) = 2 * len * sizeof *aa + 1;
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aa = (char*)malloc((*aalen));
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for(int i = 0; i < len; i++){
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sprintf(aa + (2 * i), "%02x", a[i]);
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}
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aa[(*aalen)-1] = '\n';
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return aa;
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}
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