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mkswap: accidentally committed wrong patch. fix it up
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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@ -53,10 +53,6 @@ static void mkswap_selinux_setcontext(int fd, const char *path)
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#if ENABLE_DESKTOP
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static void mkswap_generate_uuid(uint8_t *buf)
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{
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pid_t pid;
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unsigned i;
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char uuid_string[32];
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/* http://www.ietf.org/rfc/rfc4122.txt
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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@ -64,7 +60,7 @@ static void mkswap_generate_uuid(uint8_t *buf)
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | time_mid | time_hi_and_version |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* |clk_seq__and_variant | node (0-1) |
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* |clk_seq_and_variant | node (0-1) |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | node (2-5) |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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@ -73,11 +69,11 @@ static void mkswap_generate_uuid(uint8_t *buf)
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* uint16_t time_mid (big endian)
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* uint16_t time_hi_and_version (big endian)
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* version is a 4-bit field:
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* 1 Time-based version
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* 2 DCE Security version, with embedded POSIX UIDs
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* 3 Name-based version (MD5)
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* 4 Randomly generated version
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* 5 Name-based version (SHA-1)
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* 1 Time-based
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* 2 DCE Security, with embedded POSIX UIDs
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* 3 Name-based (MD5)
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* 4 Randomly generated
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* 5 Name-based (SHA-1)
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* uint16_t clk_seq_and_variant (big endian)
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* variant is a 3-bit field:
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* 0xx Reserved, NCS backward compatibility
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@ -90,6 +86,9 @@ static void mkswap_generate_uuid(uint8_t *buf)
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* time_hi_and_version & 0x0fff | 0x4000
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* clk_seq_and_variant & 0x3fff | 0x8000
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*/
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pid_t pid;
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int i;
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char uuid_string[32];
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i = open("/dev/urandom", O_RDONLY);
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if (i >= 0) {
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@ -110,8 +109,10 @@ static void mkswap_generate_uuid(uint8_t *buf)
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pid = 0;
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}
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buf[4 + 2 ] = (buf[4 + 2 ] & 0x0f) | 0x40; /* time_hi_and_version */
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buf[4 + 2 + 2] = (buf[4 + 2 + 2] & 0x3f) | 0x80; /* clk_seq_and_variant */
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/* version = 4 */
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buf[4 + 2 ] = (buf[4 + 2 ] & 0x0f) | 0x40;
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/* variant = 10x */
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buf[4 + 2 + 2] = (buf[4 + 2 + 2] & 0x3f) | 0x80;
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bin2hex(uuid_string, (void*) buf, 16);
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/* f.e. UUID=dfd9c173-be52-4d27-99a5-c34c6c2ff55f */
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