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author | Denys Vlasenko | 2010-06-06 21:53:09 +0200 |
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committer | Denys Vlasenko | 2010-06-06 21:53:09 +0200 |
commit | 19ced5c4253bc154aa499a72b6343e01245c92c0 (patch) | |
tree | c1c148612896e748749ce882ed25ad5ffd74418c /libbb/xfuncs.c | |
parent | 5f3303712ef483d270097cae4ba0a559b1056121 (diff) | |
download | busybox-19ced5c4253bc154aa499a72b6343e01245c92c0.zip busybox-19ced5c4253bc154aa499a72b6343e01245c92c0.tar.gz |
pipe_progress: make it independent of printf machinery
function old new delta
bb_putchar_stderr - 24 +24
ParseField 494 471 -23
progress_meter 212 188 -24
xargs_main 888 842 -46
pipe_progress_main 151 105 -46
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/4 up/down: 24/-139) Total: -115 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'libbb/xfuncs.c')
-rw-r--r-- | libbb/xfuncs.c | 73 |
1 files changed, 2 insertions, 71 deletions
diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c index d93dd2a..6200fc6 100644 --- a/libbb/xfuncs.c +++ b/libbb/xfuncs.c @@ -199,15 +199,9 @@ off_t FAST_FUNC fdlength(int fd) } #endif -char* FAST_FUNC xmalloc_ttyname(int fd) +int FAST_FUNC bb_putchar_stderr(char ch) { - char *buf = xzalloc(128); - int r = ttyname_r(fd, buf, 127); - if (r) { - free(buf); - buf = NULL; - } - return buf; + return write(STDERR_FILENO, &ch, 1); } static int wh_helper(int value, int def_val, const char *env_name, int *err) @@ -250,66 +244,3 @@ int FAST_FUNC tcsetattr_stdin_TCSANOW(const struct termios *tp) { return tcsetattr(STDIN_FILENO, TCSANOW, tp); } - -void FAST_FUNC generate_uuid(uint8_t *buf) -{ - /* http://www.ietf.org/rfc/rfc4122.txt - * 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 - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | time_low | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | time_mid | time_hi_and_version | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * |clk_seq_and_variant | node (0-1) | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | node (2-5) | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * IOW, uuid has this layout: - * uint32_t time_low (big endian) - * uint16_t time_mid (big endian) - * uint16_t time_hi_and_version (big endian) - * version is a 4-bit field: - * 1 Time-based - * 2 DCE Security, with embedded POSIX UIDs - * 3 Name-based (MD5) - * 4 Randomly generated - * 5 Name-based (SHA-1) - * uint16_t clk_seq_and_variant (big endian) - * variant is a 3-bit field: - * 0xx Reserved, NCS backward compatibility - * 10x The variant specified in rfc4122 - * 110 Reserved, Microsoft backward compatibility - * 111 Reserved for future definition - * uint8_t node[6] - * - * For version 4, these bits are set/cleared: - * time_hi_and_version & 0x0fff | 0x4000 - * clk_seq_and_variant & 0x3fff | 0x8000 - */ - pid_t pid; - int i; - - i = open("/dev/urandom", O_RDONLY); - if (i >= 0) { - read(i, buf, 16); - close(i); - } - /* Paranoia. /dev/urandom may be missing. - * rand() is guaranteed to generate at least [0, 2^15) range, - * but lowest bits in some libc are not so "random". */ - srand(monotonic_us()); - pid = getpid(); - while (1) { - for (i = 0; i < 16; i++) - buf[i] ^= rand() >> 5; - if (pid == 0) - break; - srand(pid); - pid = 0; - } - - /* version = 4 */ - buf[4 + 2 ] = (buf[4 + 2 ] & 0x0f) | 0x40; - /* variant = 10x */ - buf[4 + 2 + 2] = (buf[4 + 2 + 2] & 0x3f) | 0x80; -} |