Sync up busybox with the latest and greatest. This is not stuff for

the Embedix release.
 -Erik

1 files changed, 162 insertions, 0 deletions

diff --git a/coreutils/wc.c b/coreutils/wc.c
new file mode 100644
index 0000000..a1e2fca
--- /dev/null
+++ b/coreutils/wc.c
@@ -0,0 +1,162 @@
+/*
+ * Mini wc implementation for busybox
+ *
+ * by Edward Betts <edward@debian.org>
+ *
+ * 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 "internal.h"
+#include <stdio.h>
+
+static const char wc_usage[] = "wc [OPTION]... [FILE]...\n\n"
+"Print line, word, and byte counts for each FILE, and a total line if\n"
+"more than one FILE is specified.  With no FILE, read standard input.\n"
+"\t-c\tprint the byte counts\n"
+"\t-l\tprint the newline counts\n"
+"\t-L\tprint the length of the longest line\n"
+"\t-L\tprint the length of the longest line\n"
+"\t-w\tprint the word counts\n";
+
+static int total_lines, total_words, total_chars, max_length;
+static int print_lines, print_words, print_chars, print_length;
+
+void print_counts (int lines, int words, int chars, int length, 
+		const char *name) {
+	char const *space = "";
+	if (print_lines) {
+		printf ("%7d", lines);
+		space = " ";
+	}
+	if (print_words) {
+		printf ("%s%7d", space, words);
+		space = " ";
+	}
+	if (print_chars) {
+		printf ("%s%7d", space, chars);
+		space = " ";
+	}
+	if (print_length)
+		printf ("%s%7d", space, length);
+	if (*name)
+		printf (" %s", name);
+	putchar ('\n');
+}
+
+static void wc_file(FILE *file, const char *name) 
+{
+	int lines, words, chars, length;
+	int in_word = 0, linepos = 0;
+	int c;
+	lines = words = chars = length = 0;
+	while ((c = getc(file)) != EOF) {
+		chars++;
+		switch (c) {
+			case '\n': 
+				lines++;
+			case '\r':
+			case '\f': 
+				if (linepos > length)
+					length = linepos;
+				linepos = 0;
+				goto word_separator;
+			case '\t':
+				linepos += 8 - (linepos % 8);
+				goto word_separator;
+			case ' ':
+				linepos++;
+			case '\v':
+			word_separator:
+				if (in_word) {
+					in_word = 0;
+					words++;
+				}
+				break;
+			default:
+				linepos++;
+				in_word = 1;
+				break;
+		}
+	}
+	if (linepos > length)
+		length = linepos;
+	if (in_word)
+		words++;
+	print_counts (lines, words, chars, length, name);
+	total_lines += lines;
+	total_words += words;
+	total_chars += chars;
+	if (length > max_length)
+		max_length = length;
+	fclose(file);
+	fflush(stdout);
+}
+
+int wc_main(int argc, char **argv) {
+	FILE *file;
+	total_lines = total_words = total_chars = max_length = 0;
+	print_lines = print_words = print_chars = print_length = 0;
+
+	while (--argc && **(++argv) == '-') {
+		while (*++(*argv))
+			switch (**argv) {
+				case 'c':
+					print_chars = 1;
+					break;
+				case 'l':
+					print_lines = 1;
+					break;
+				case 'L':
+					print_length = 1;
+					break;
+				case 'w':
+					print_words = 1;
+					break;
+				default:
+					usage (wc_usage);
+			}
+	}
+
+	if (!print_lines && !print_words && !print_chars && !print_length)
+		print_lines = print_words = print_chars = 1;
+
+	if (argc == 0) {
+		wc_file(stdin, "");
+		exit(TRUE);
+	}
+	else if (argc == 1) {
+		file = fopen(*argv, "r");
+		if (file == NULL) {
+			perror(*argv);
+			exit(FALSE);
+		}
+		wc_file(file, *argv);
+	}
+	else {
+		while (argc-- > 0 && *argv != '\0' && strlen(*argv)) {
+			file = fopen(*argv, "r");
+			if (file == NULL) {
+				perror(*argv);
+				exit(FALSE);
+			}
+			wc_file(file, *argv);
+			argv++;
+		}
+		print_counts (total_lines, total_words, total_chars, 
+				max_length, "total");
+	}
+	exit(TRUE);
+}