ref: 4cd78cb562334a8106b94d690b31b53f43f81018
dir: /llt/dump.c/
#include <stdlib.h> #include "dtypes.h" #include "ios.h" #include "utils.h" static char hexdig[] = "0123456789abcdef"; /* display a given number of bytes from a buffer, with the first address label being startoffs */ void hexdump(ios_t *dest, const char *buffer, size_t len, size_t startoffs) { size_t offs=0; size_t i, pos; char ch, linebuffer[16]; char hexc[4]; static char *spc50 = " "; hexc[2] = hexc[3] = ' '; do { ios_printf(dest, "%.8x ", offs+startoffs); pos = 10; for(i=0; i < 16 && offs < len; i++, offs++) { ch = buffer[offs]; linebuffer[i] = (ch<32 || ch>=0x7f) ? '.' : ch; hexc[0] = hexdig[((unsigned char)ch)>>4]; hexc[1] = hexdig[ch&0x0f]; pos += ios_write(dest, hexc, (i==7 || i==15) ? 4 : 3); } for(; i < 16; i++) linebuffer[i] = ' '; ios_write(dest, spc50, 60-pos); ios_putc('|', dest); ios_write(dest, linebuffer, 16); ios_write(dest, "|\n", 2); } while (offs < len); }