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17 lines
428 B
C
17 lines
428 B
C
#include "fmt.h"
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#include "textcode.h"
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#include "str.h"
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#include "haveinline.h"
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size_t fmt_hexdump(char* dest,const char* src,size_t len) {
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register const unsigned char* s=(const unsigned char*) src;
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size_t written=0,i;
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if (!dest) return (len>((size_t)-1)/2)?(size_t)-1:len*2;
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for (i=0; i<len; ++i) {
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dest[written]=fmt_tohex(s[i]>>4);
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dest[written+1]=fmt_tohex(s[i]&15);
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written+=2;
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}
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return written;
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}
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