Mirror of :pserver:cvs@cvs.fefe.de:/cvs libowfat https://www.fefe.de/libowfat/
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#include "fmt.h"
#include "stralloc.h"
#include "textcode.h"
#include "haveinline.h"
static inline int fromhex(char c) {
if (c>='0' && c<='9') return c-'0';
if (c>='A' && c<='F') return c-'A'+10;
if (c>='a' && c<='f') return c-'a'+10;
return -1;
}
int scan_hexdump_sa(const char *src,stralloc *sa) {
register const unsigned char* s=(const unsigned char*) src;
unsigned long i;
for (i=0; s[i]; ++i) {
char dest;
int j=fromhex(s[i]);
if (j<0) break;
dest=j<<4;
j=fromhex(s[i+1]);
if (j<0) break;
dest|=j;
++i;
if (!stralloc_catb(sa, &dest, 1)) return 0;
}
return 1;
}