summaryrefslogtreecommitdiff
path: root/ubi-utils/ubiutils-common.c
diff options
context:
space:
mode:
Diffstat (limited to 'ubi-utils/ubiutils-common.c')
-rw-r--r--ubi-utils/ubiutils-common.c158
1 files changed, 0 insertions, 158 deletions
diff --git a/ubi-utils/ubiutils-common.c b/ubi-utils/ubiutils-common.c
deleted file mode 100644
index 5636785..0000000
--- a/ubi-utils/ubiutils-common.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
- * Copyright (C) 2007, 2008 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/*
- * This file contains various common stuff used by UBI utilities.
- *
- * Authors: Artem Bityutskiy
- * Adrian Hunter
- */
-
-#define PROGRAM_NAME "ubiutils"
-
-#include <sys/time.h>
-#include <sys/types.h>
-#include <stdio.h>
-#include <string.h>
-#include <ctype.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include "common.h"
-
-/**
- * get_multiplier - convert size specifier to an integer multiplier.
- * @str: the size specifier string
- *
- * This function parses the @str size specifier, which may be one of
- * 'KiB', 'MiB', or 'GiB' into an integer multiplier. Returns positive
- * size multiplier in case of success and %-1 in case of failure.
- */
-static int get_multiplier(const char *str)
-{
- if (!str)
- return 1;
-
- /* Remove spaces before the specifier */
- while (*str == ' ' || *str == '\t')
- str += 1;
-
- if (!strcmp(str, "KiB"))
- return 1024;
- if (!strcmp(str, "MiB"))
- return 1024 * 1024;
- if (!strcmp(str, "GiB"))
- return 1024 * 1024 * 1024;
-
- return -1;
-}
-
-/**
- * ubiutils_get_bytes - convert a string containing amount of bytes into an
- * integer
- * @str: string to convert
- *
- * This function parses @str which may have one of 'KiB', 'MiB', or 'GiB'
- * size specifiers. Returns positive amount of bytes in case of success and %-1
- * in case of failure.
- */
-long long ubiutils_get_bytes(const char *str)
-{
- char *endp;
- long long bytes = strtoull(str, &endp, 0);
-
- if (endp == str || bytes < 0) {
- fprintf(stderr, "incorrect amount of bytes: \"%s\"\n", str);
- return -1;
- }
-
- if (*endp != '\0') {
- int mult = get_multiplier(endp);
-
- if (mult == -1) {
- fprintf(stderr, "bad size specifier: \"%s\" - "
- "should be 'KiB', 'MiB' or 'GiB'\n", endp);
- return -1;
- }
- bytes *= mult;
- }
-
- return bytes;
-}
-
-/**
- * ubiutils_print_bytes - print bytes.
- * @bytes: variable to print
- * @bracket: whether brackets have to be put or not
- *
- * This is a helper function which prints amount of bytes in a human-readable
- * form, i.e., it prints the exact amount of bytes following by the approximate
- * amount of Kilobytes, Megabytes, or Gigabytes, depending on how big @bytes
- * is.
- */
-void ubiutils_print_bytes(long long bytes, int bracket)
-{
- const char *p;
-
- if (bracket)
- p = " (";
- else
- p = ", ";
-
- printf("%lld bytes", bytes);
-
- if (bytes > 1024 * 1024 * 1024)
- printf("%s%.1f GiB", p, (double)bytes / (1024 * 1024 * 1024));
- else if (bytes > 1024 * 1024)
- printf("%s%.1f MiB", p, (double)bytes / (1024 * 1024));
- else if (bytes > 1024 && bytes != 0)
- printf("%s%.1f KiB", p, (double)bytes / 1024);
- else
- return;
-
- if (bracket)
- printf(")");
-}
-
-/**
- * ubiutils_srand - randomly seed the standard pseudo-random generator.
- *
- * This helper function seeds the standard libc pseudo-random generator with a
- * more or less random value to make sure the 'rand()' call does not return the
- * same sequence every time UBI utilities run. Returns zero in case of success
- * and a %-1 in case of error.
- */
-int ubiutils_srand(void)
-{
- struct timeval tv;
- struct timezone tz;
- unsigned int seed;
-
- /*
- * Just assume that a combination of the PID + current time is a
- * reasonably random number.
- */
- if (gettimeofday(&tv, &tz))
- return -1;
-
- seed = (unsigned int)tv.tv_sec;
- seed += (unsigned int)tv.tv_usec;
- seed *= getpid();
- seed %= RAND_MAX;
- srand(seed);
- return 0;
-}