1 e46639b3 2024-02-20 benni #include <string.h>
 2 e46639b3 2024-02-20 benni #include <stdio.h>
 3 e46639b3 2024-02-20 benni #include <err.h>
 4 e46639b3 2024-02-20 benni 
 5 e46639b3 2024-02-20 benni static void cat (FILE* file) {
 6 e46639b3 2024-02-20 benni 	int ch;
 7 e46639b3 2024-02-20 benni 	while ((ch = fgetc(file)) != EOF)
 8 e46639b3 2024-02-20 benni 		putchar(ch);
 9 e46639b3 2024-02-20 benni }
10 e46639b3 2024-02-20 benni 
11 e46639b3 2024-02-20 benni int main (int argc, char* argv[]) {
12 e46639b3 2024-02-20 benni 	FILE *file;
13 e46639b3 2024-02-20 benni 	int ec = 0;
14 e46639b3 2024-02-20 benni 	int ch;
15 e46639b3 2024-02-20 benni 
16 e46639b3 2024-02-20 benni 	if (argc == 1) {
17 e46639b3 2024-02-20 benni 		cat (stdin);
18 e46639b3 2024-02-20 benni 		return 0;
19 e46639b3 2024-02-20 benni 	}
20 e46639b3 2024-02-20 benni 
21 e46639b3 2024-02-20 benni 	for (int i = 1; i < argc; ++i) {
22 e46639b3 2024-02-20 benni 		if (strcmp (argv[i], "-") == 0) {
23 e46639b3 2024-02-20 benni 			file = stdin;
24 e46639b3 2024-02-20 benni 		} else {
25 e46639b3 2024-02-20 benni 			file = fopen (argv[i], "r");
26 e46639b3 2024-02-20 benni 		}
27 e46639b3 2024-02-20 benni 
28 e46639b3 2024-02-20 benni 		if (file == NULL) {
29 e46639b3 2024-02-20 benni 			warn ("%s", argv[i]);
30 e46639b3 2024-02-20 benni 			ec = 1;
31 e46639b3 2024-02-20 benni 			continue;
32 e46639b3 2024-02-20 benni 		}
33 e46639b3 2024-02-20 benni 
34 e46639b3 2024-02-20 benni 		cat (file);
35 e46639b3 2024-02-20 benni 
36 cc17802d 2024-06-10 benni 		if (file != stdin)
37 cc17802d 2024-06-10 benni 			fclose (file);
38 e46639b3 2024-02-20 benni 	}
39 e46639b3 2024-02-20 benni 	return ec;
40 e46639b3 2024-02-20 benni }
41 e46639b3 2024-02-20 benni