mirror of https://git.qorg11.net/k9core.git
107 lines
1.9 KiB
C
107 lines
1.9 KiB
C
#include <stdio.h>
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#include <ctype.h>
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#include <getopt.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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int show_lines, show_words, show_bytes;
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struct wc_values data;
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struct wc_values
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{
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int lines;
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int bytes;
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int words;
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};
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int
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wc(const char *filename, struct wc_values *data)
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{
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FILE *file = fopen(filename,"r");
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if(file == NULL) {
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fprintf(stderr,"error opening file %s: %s\n",
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filename,
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strerror(errno));
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return -1;
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}
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size_t c;
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char buf;
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int newlines, spaces, bytes = 0;
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newlines = spaces = bytes = 0;
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while((c = fread(&buf,1,1, file)) > 0) {
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if(!isascii(buf))
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buf = toascii(buf);
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bytes++;
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if(buf == '\n')
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newlines++;
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if(isspace(buf))
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spaces++;
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}
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data->bytes = bytes;
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data->lines = newlines;
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data->words = spaces;
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fclose(file);
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return 0;
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}
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void
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print_values(const char *filename, struct wc_values data)
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{
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if(show_bytes && show_lines && show_words)
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printf("%i %i %i",
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data.lines,
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data.words,
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data.bytes);
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else {
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if(!show_lines)
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printf("%i ",data.lines);
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if(!show_words)
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printf("%i ",data.words);
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if(!show_bytes)
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printf("%i ",data.bytes);
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}
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printf(" %s\n",filename);
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}
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int
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main(int argc, char *argv[])
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{
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int c;
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struct wc_values data;
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int return_value = 0; /* Please let me know a better name */
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show_lines = show_words = show_bytes = 1;
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/* Process arguments */
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while((c = getopt(argc,argv,"lwcm")) > 0){
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switch(c) {
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case 'l':
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show_lines = 0;
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break;
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case 'w':
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show_words = 0;
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break;
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case 'c':
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case 'm':
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show_bytes = 0;
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break;
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}
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}
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if(optind == argc) {
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wc("/dev/stdin",&data); /* lol */
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print_values("stdin",data);
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}
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else
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for(int i = optind; i<argc; i++) {
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if(argv[i][0] == '-' && argv[i][1] == '\0')
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return_value = wc("/dev/stdin",&data);
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else
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return_value = wc(argv[i],&data);
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if (return_value == 0)
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print_values(argv[i],data);
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}
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return 0;
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}
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