37 lines
971 B
C
37 lines
971 B
C
#include <debug.h>
|
|
#include <stdio.h>
|
|
#include <ctype.h>
|
|
|
|
#define NUM_COLS (32)
|
|
|
|
int dump_hex_buffer(FILE *s, void *b, size_t len, size_t elsize) {
|
|
int num_nonprintable = 0;
|
|
int i, last;
|
|
char *pchr = (char *)b;
|
|
fputc('\n', s);
|
|
for (i = last = 0; i < len; i++) {
|
|
if (!elsize) {
|
|
if (i && !(i % 4)) fprintf(s, " ");
|
|
if (i && !(i % 8)) fprintf(s, " ");
|
|
} else {
|
|
if (i && !(i % elsize)) fprintf(s, " ");
|
|
}
|
|
|
|
if (i && !(i % NUM_COLS)) {
|
|
while (last < i) {
|
|
if (isprint(pchr[last]))
|
|
fputc(pchr[last], s);
|
|
else {
|
|
fputc('.', s);
|
|
num_nonprintable++;
|
|
}
|
|
last++;
|
|
}
|
|
fprintf(s, " (%d)\n", i);
|
|
}
|
|
fprintf(s, "%02x", (unsigned char)pchr[i]);
|
|
}
|
|
if (i && (i % NUM_COLS)) fputs("\n", s);
|
|
return num_nonprintable;
|
|
}
|
|
|