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| author | Mathieu Trudel-Lapierre <cyphermox@ubuntu.com> | 2017-08-04 12:10:50 -0400 |
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| committer | Mathieu Trudel-Lapierre <cyphermox@ubuntu.com> | 2017-08-04 12:10:50 -0400 |
| commit | bbfd2ab18f52600aa41f061b2da9a2afe2a9d6ac (patch) | |
| tree | 56132d617fff7c4f05e67024ec872d88fcafa92d /hexdump.h | |
| download | efi-boot-shim-upstream/0.9+1474479173.6c180c6.tar.gz efi-boot-shim-upstream/0.9+1474479173.6c180c6.zip | |
Import Upstream version 0.9+1474479173.6c180c6upstream/0.9+1474479173.6c180c6
Diffstat (limited to 'hexdump.h')
| -rw-r--r-- | hexdump.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/hexdump.h b/hexdump.h new file mode 100644 index 00000000..d5ece4dd --- /dev/null +++ b/hexdump.h @@ -0,0 +1,104 @@ +#ifndef STATIC_HEXDUMP_H +#define STATIC_HEXDUMP_H + +static int +__attribute__((__unused__)) +isprint(char c) +{ + if (c < 0x20) + return 0; + if (c > 0x7e) + return 0; + return 1; +} + +static UINTN +__attribute__((__unused__)) +format_hex(UINT8 *data, UINTN size, CHAR16 *buf) +{ + UINTN sz = (UINTN)data % 16; + CHAR16 hexchars[] = L"0123456789abcdef"; + int offset = 0; + UINTN i; + UINTN j; + + for (i = 0; i < sz; i++) { + buf[offset++] = L' '; + buf[offset++] = L' '; + buf[offset++] = L' '; + if (i == 7) + buf[offset++] = L' '; + } + for (j = sz; j < 16 && j < size; j++) { + UINT8 d = data[j-sz]; + buf[offset++] = hexchars[(d & 0xf0) >> 4]; + buf[offset++] = hexchars[(d & 0x0f)]; + if (j != 15) + buf[offset++] = L' '; + if (j == 7) + buf[offset++] = L' '; + } + for (i = j; i < 16; i++) { + buf[offset++] = L' '; + buf[offset++] = L' '; + if (i != 15) + buf[offset++] = L' '; + if (i == 7) + buf[offset++] = L' '; + } + buf[offset] = L'\0'; + return j - sz; +} + +static void +__attribute__((__unused__)) +format_text(UINT8 *data, UINTN size, CHAR16 *buf) +{ + UINTN sz = (UINTN)data % 16; + int offset = 0; + UINTN i; + UINTN j; + + for (i = 0; i < sz; i++) + buf[offset++] = L' '; + buf[offset++] = L'|'; + for (j = sz; j < 16 && j < size; j++) { + if (isprint(data[j-sz])) + buf[offset++] = data[j-sz]; + else + buf[offset++] = L'.'; + } + buf[offset++] = L'|'; + for (i = j; i < 16; i++) + buf[offset++] = L' '; + buf[offset] = L'\0'; +} + +static void +__attribute__((__unused__)) +hexdump(UINT8 *data, UINTN size) +{ + UINTN display_offset = (UINTN)data & 0xffffffff; + UINTN offset = 0; + //Print(L"hexdump: data=0x%016x size=0x%x\n", data, size); + + while (offset < size) { + CHAR16 hexbuf[49]; + CHAR16 txtbuf[19]; + UINTN sz; + + sz = format_hex(data+offset, size-offset, hexbuf); + if (sz == 0) + return; + uefi_call_wrapper(BS->Stall, 1, 200000); + + format_text(data+offset, size-offset, txtbuf); + Print(L"%08x %s %s\n", display_offset, hexbuf, txtbuf); + uefi_call_wrapper(BS->Stall, 1, 200000); + + display_offset += sz; + offset += sz; + } +} + +#endif |