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4a2117027

Mike Frysinger
Mike Frysinger
2005-04-21
FAILED Duration: 27s

Subject

grab sum from coreutils, clean it up, and make it busybox happy

Binary

No binary (build failed)

Architecture & Compiler Flags

Architecture: x86_64-linux-gnu Compiler: gcc (Ubuntu 11.4.0-1ubuntu1~22.04.3) 11.4.0

—

Build Log

(log yok)

Commit Diff GitHub →

coreutils/Config.in +6 -0coreutils/Makefile.in +1 -0coreutils/sum.c +182 -0
coreutils/Config.in+6 -0
@@ -428,6 +428,12 @@ config CONFIG_STTY
help
stty is used to change and print terminal line settings.
+config CONFIG_SUM
+ bool "sum"
+ default n
+ help
+ checksum and count the blocks in a file
+
config CONFIG_SYNC
bool "sync"
default n
coreutils/Makefile.in+1 -0
@@ -71,6 +71,7 @@ COREUTILS-$(CONFIG_SHA1SUM) += md5_sha1_sum.o
COREUTILS-$(CONFIG_SLEEP) += sleep.o
COREUTILS-$(CONFIG_SORT) += sort.o
COREUTILS-$(CONFIG_STTY) += stty.o
+COREUTILS-$(CONFIG_SUM) += sum.o
COREUTILS-$(CONFIG_SYNC) += sync.o
COREUTILS-$(CONFIG_TAIL) += tail.o
COREUTILS-$(CONFIG_TEE) += tee.o
coreutils/sum.c+182 -0
@@ -0,0 +1,182 @@
+/*
+ * sum -- checksum and count the blocks in a file
+ * Like BSD sum or SysV sum -r, except like SysV sum if -s option is given.
+ *
+ * Copyright (C) 86, 89, 91, 1995-2002, 2004 Free Software Foundation, Inc.
+ * Copyright (C) 2005 by Erik Andersen <[email protected]>
+ * Copyright (C) 2005 by Mike Frysinger <[email protected]>
+ *
+ * Written by Kayvan Aghaiepour and David MacKenzie
+ * Taken from coreutils and turned into a busybox applet by Mike Frysinger
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <getopt.h>
+
+#include "libbb.h"
+
+/* 1 if any of the files read were the standard input */
+static int have_read_stdin;
+
+/* make a little more readable and avoid using strcmp for just 2 bytes */
+#define IS_STDIN(s) (s[0] == '-' && s[1] == '\0')
+
+/* Calculate and print the rotated checksum and the size in 1K blocks
+ of file FILE, or of the standard input if FILE is "-".
+ If PRINT_NAME is >1, print FILE next to the checksum and size.
+ The checksum varies depending on sizeof (int).
+ Return 1 if successful. */
+static int bsd_sum_file(const char *file, int print_name)
+{
+ register FILE *fp;
+ register int checksum = 0; /* The checksum mod 2^16. */
+ register uintmax_t total_bytes = 0; /* The number of bytes. */
+ register int ch; /* Each character read. */
+
+ if (IS_STDIN(file)) {
+ fp = stdin;
+ have_read_stdin = 1;
+ } else {
+ fp = fopen(file, "r");
+ if (fp == NULL) {
+ bb_perror_msg("%s", file);
+ return 0;
+ }
+ }
+
+ while ((ch = getc(fp)) != EOF) {
+ ++total_bytes;
+ checksum = (checksum >> 1) + ((checksum & 1) << 15);
+ checksum += ch;
+ checksum &= 0xffff; /* Keep it within bounds. */
+ }
+
+ if (ferror(fp)) {
+ bb_perror_msg("%s", file);
+ if (!IS_STDIN(file))
+ fclose(fp);
+ return 0;
+ }
+
+ if (!IS_STDIN(file) && fclose(fp) == EOF) {
+ bb_perror_msg("%s", file);
+ return 0;
+ }
+
+ printf("%05d %5s", checksum,
+ make_human_readable_str(total_bytes, 1, 1024));
+ if (print_name > 1)
+ printf(" %s", file);
+ putchar('\n');
+
+ return 1;
+}
+
+/* Calculate and print the checksum and the size in 512-byte blocks
+ of file FILE, or of the standard input if FILE is "-".
+ If PRINT_NAME is >0, print FILE next to the checksum and size.
+ Return 1 if successful. */
+static int sysv_sum_file(const char *file, int print_name)
+{
+ int fd;
+ unsigned char buf[8192];
+ uintmax_t total_bytes = 0;
+ int r;
+ int checksum;
+
+ /* The sum of all the input bytes, modulo (UINT_MAX + 1). */
+ unsigned int s = 0;
+
+ if (IS_STDIN(file)) {
+ fd = 0;
+ have_read_stdin = 1;
+ } else {
+ fd = open(file, O_RDONLY);
+ if (fd == -1) {
+ bb_perror_msg("%s", file);
+ return 0;
+ }
+ }
+
+ while (1) {
+ size_t i;
+ size_t bytes_read = safe_read(fd, buf, sizeof(buf));
+
+ if (bytes_read == 0)
+ break;
+
+ if (bytes_read == -1) {
+ bb_perror_msg("%s", file);
+ if (!IS_STDIN(file))
+ close(fd);
+ return 0;
+ }
+
+ for (i = 0; i < bytes_read; i++)
+ s += buf[i];
+ total_bytes += bytes_read;
+ }
+
+ if (!IS_STDIN(file) && close(fd) == -1) {
+ bb_perror_msg("%s", file);
+ return 0;
+ }
+
+ r = (s & 0xffff) + ((s & 0xffffffff) >> 16);
+ checksum = (r & 0xffff) + (r >> 16);
+
+ printf("%d %s", checksum,
+ make_human_readable_str(total_bytes, 1, 512));
+ if (print_name)
+ printf(" %s", file);
+ putchar('\n');
+
+ return 1;
+}
+
+int sum_main(int argc, char **argv)
+{
+ int flags;
+ int ok;
+ int files_given;
+ int (*sum_func)(const char *, int) = bsd_sum_file;
+
+ /* give the bsd func priority over sysv func */
+ flags = bb_getopt_ulflags(argc, argv, "sr");
+ if (flags & 1)
+ sum_func = sysv_sum_file;
+ if (flags & 2)
+ sum_func = bsd_sum_file;
+
+ have_read_stdin = 0;
+ files_given = argc - optind;
+ if (files_given <= 0)
+ ok = sum_func("-", files_given);
+ else
+ for (ok = 1; optind < argc; optind++)
+ ok &= sum_func(argv[optind], files_given);
+
+ if (have_read_stdin && fclose(stdin) == EOF)
+ bb_perror_msg_and_die("-");
+
+ exit(ok ? EXIT_SUCCESS : EXIT_FAILURE);
+}