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Minor space saving improvments
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74afa9aed1
commit
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@ -26,9 +26,6 @@
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#include <stdlib.h>
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#include "busybox.h"
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static int total_lines, total_words, total_chars, max_length;
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//static int print_lines, print_words, print_chars, print_length;
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static char print_type = 0;
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enum print_e {
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print_lines = 1,
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print_words = 2,
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@ -36,8 +33,14 @@ enum print_e {
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print_length = 8
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};
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static void print_counts(int lines, int words, int chars, int length,
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const char *name)
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static unsigned int total_lines = 0;
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static unsigned int total_words = 0;
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static unsigned int total_chars = 0;
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static unsigned int max_length = 0;
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static char print_type = 0;
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static void print_counts(const unsigned int lines, const unsigned int words,
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const unsigned int chars, const unsigned int length, const char *name)
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{
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if (print_type & print_lines) {
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printf("%7d ", lines);
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@ -59,11 +62,14 @@ static void print_counts(int lines, int words, int chars, int length,
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static void wc_file(FILE * file, const char *name)
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{
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int lines, words, chars, length;
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int in_word = 0, linepos = 0;
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int c;
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unsigned int lines = 0;
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unsigned int words = 0;
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unsigned int chars = 0;
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unsigned int length = 0;
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unsigned int linepos = 0;
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char in_word = 0;
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char c;
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lines = words = chars = length = 0;
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while ((c = getc(file)) != EOF) {
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chars++;
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switch (c) {
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@ -93,27 +99,24 @@ static void wc_file(FILE * file, const char *name)
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break;
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}
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}
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if (linepos > length)
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if (linepos > length) {
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length = linepos;
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if (in_word)
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}
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if (in_word) {
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words++;
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}
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print_counts(lines, words, chars, length, name);
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total_lines += lines;
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total_words += words;
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total_chars += chars;
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if (length > max_length)
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if (length > max_length) {
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max_length = length;
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fclose(file);
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fflush(stdout);
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}
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}
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int wc_main(int argc, char **argv)
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{
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FILE *file;
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unsigned int num_files_counted = 0;
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int opt, status = EXIT_SUCCESS;
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total_lines = total_words = total_chars = max_length = 0;
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int opt;
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while ((opt = getopt(argc, argv, "clLw")) > 0) {
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switch (opt) {
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@ -140,8 +143,8 @@ int wc_main(int argc, char **argv)
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if (argv[optind] == NULL || strcmp(argv[optind], "-") == 0) {
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wc_file(stdin, "");
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return EXIT_SUCCESS;
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} else {
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unsigned short num_files_counted = 0;
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while (optind < argc) {
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if (print_type == print_chars) {
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struct stat statbuf;
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@ -149,17 +152,18 @@ int wc_main(int argc, char **argv)
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print_counts(0, 0, statbuf.st_size, 0, argv[optind]);
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total_chars += statbuf.st_size;
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} else {
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FILE *file;
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file = xfopen(argv[optind], "r");
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wc_file(file, argv[optind]);
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fclose(file);
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}
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num_files_counted++;
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optind++;
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num_files_counted++;
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}
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if (num_files_counted > 1) {
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print_counts(total_lines, total_words, total_chars, max_length, "total");
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}
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}
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if (num_files_counted > 1)
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print_counts(total_lines, total_words, total_chars,
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max_length, "total");
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return status;
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return(EXIT_SUCCESS);
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}
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