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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "util/versie.h"
#include "util/loop_args.h"
#include "io/read_file.h"
static void usage(FILE *f) {
fprintf(f,
"Gebruik: kat [-hV] <bestand...>\n"
"\n"
"Schakel bestanden aaneen naar standaard uitvoer.\n"
"\n"
" -h Toon deze hulptekst\n"
" -V Toon versienummer\n");
}
// Returns pointer to argument array containing the file names
static char** parse_options(int argc, char **argv) {
int opt;
while ((opt = getopt(argc, argv, "hV")) != -1) {
switch (opt) {
case 'h':
usage(stdout);
exit(0);
case 'V':
drukkedoos_print_versie(stdout);
exit(0);
case '?':
fprintf(stderr, "kat: Ongeldige optie: -%c\n", optopt);
usage(stderr);
exit(1);
}
}
return argv + optind;
}
static int process(char *fname, bool isstdin) {
#define BUF_SIZE 4096
static char buf[BUF_SIZE];
FILE *stream = isstdin ? stdin : fopen(fname, "rb");
while (!feof(stream)) {
const size_t n = fread(buf, 1, BUF_SIZE, stream);
fwrite(buf, 1, n, stdout);
}
if (!isstdin) fclose(stream);
return 0;
#undef BUF_SIZE
}
int entry_kat(int argc, char **argv) {
char **args = parse_options(argc, argv);
return loop_args(args, process);
}
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