be08c1d6dc
These strings didn't match the license names exactly, so update them to match. Change-Id: Ib946eb15ca5fa64cbd6b657350b989b4a4c1b7b7 Signed-off-by: Martin Roth <gaumless@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/80583 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
147 lines
4.1 KiB
C
147 lines
4.1 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0-only */
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#include "hexdump.h"
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#include <ctype.h>
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static void addrprint(FILE * outfile, uint64_t address, int width);
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/*--------------------------------------------------------------------------
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* hexdump
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*
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* Write a hex dump of 'mem' to 'outfile'.
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*
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* parameters:
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* mem: a pointer to the memory to display
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* bytes: the number of bytes of data to display
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* addrprint_start: The address to associate with the first byte of
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* data. For instance, a value of 0 indicates that the
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* first byte displayed should be labeled as byte 0.
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* outfile: The place where the hex dump should be written.
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* For instance, stdout or stderr may be passed here.
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* format: A structure specifying how the hex dump should be
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* formatted.
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*--------------------------------------------------------------------------*/
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void hexdump(const void *mem, int bytes, uint64_t addrprint_start,
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FILE * outfile, const hexdump_format_t * format)
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{
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int bytes_left, index, i;
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const unsigned char *p;
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/* Quietly return if the caller asks us to do something unreasonable. */
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if ((format->bytes_per_line <= 0) || (bytes < 0))
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return;
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p = (const unsigned char *)mem;
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index = 0;
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/* Each iteration handles one full line of output. When loop
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* terminates, the number of remaining bytes to display (if any)
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* will not be enough to fill an entire line.
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*/
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for (bytes_left = bytes;
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bytes_left >= format->bytes_per_line;
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bytes_left -= format->bytes_per_line) {
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/* print start address for current line */
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fprintf(outfile, "%s", format->indent);
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addrprint(outfile, addrprint_start + index,
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format->addrprint_width);
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fprintf(outfile, "%s", format->sep1);
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/* display the bytes in hex */
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for (i = 0;;) {
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fprintf(outfile, "%02x", p[index++]);
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if (++i >= format->bytes_per_line)
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break;
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fprintf(outfile, "%s", format->sep2);
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}
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index -= format->bytes_per_line;
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fprintf(outfile, "%s", format->sep3);
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/* display the bytes as characters */
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for (i = 0; i < format->bytes_per_line; i++, index++)
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fputc(isprint(p[index])?p[index]:format->nonprintable, outfile);
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fprintf(outfile, "\n");
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}
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if (bytes_left == 0)
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return;
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/* print start address for last line */
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fprintf(outfile, "%s", format->indent);
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addrprint(outfile, addrprint_start + index, format->addrprint_width);
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fprintf(outfile, "%s", format->sep1);
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/* display bytes for last line in hex */
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for (i = 0; i < bytes_left; i++) {
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fprintf(outfile, "%02x", p[index++]);
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fprintf(outfile, "%s", format->sep2);
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}
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index -= bytes_left;
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/* pad the rest of the hex byte area with spaces */
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for (;;) {
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fprintf(outfile, " ");
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if (++i >= format->bytes_per_line)
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break;
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fprintf(outfile, "%s", format->sep2);
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}
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fprintf(outfile, "%s", format->sep3);
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/* display bytes for last line as characters */
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for (i = 0; i < bytes_left; i++)
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fputc(isprint(p[index])?p[index++]:format->nonprintable, outfile);
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/* pad the rest of the character area with spaces */
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for (; i < format->bytes_per_line; i++)
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fprintf(outfile, " ");
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fprintf(outfile, "\n");
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}
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/*--------------------------------------------------------------------------
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* addrprint
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*
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* Display an address as a hexadecimal number.
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*
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* parameters:
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* outfile: the place where the output should be written
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* address: the address to display
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* width: The number of bytes wide the address should be displayed as.
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* Must be a value from 1 to 8.
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*--------------------------------------------------------------------------*/
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static void addrprint(FILE * outfile, uint64_t address, int width)
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{
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char s[17];
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int i;
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/* force the user's input to be valid */
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if (width < 1)
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width = 1;
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else if (width > 8)
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width = 8;
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/* convert address to string */
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sprintf(s, "%016llx", (unsigned long long)address);
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/* write it out, with colons separating consecutive 16-bit
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* chunks of the address
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*/
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for (i = 16 - (2 * width);;) {
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fprintf(outfile, "%c", s[i]);
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if (++i >= 16)
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break;
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if ((i % 4) == 0)
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fprintf(outfile, ":");
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}
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}
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