sbase/cat.c

48 lines
836 B
C

/* See LICENSE file for copyright and license details. */
#include <stdio.h>
#include <unistd.h>
#include "text.h"
#include "util.h"
static void
usage(void)
{
eprintf("usage: %s [-u] [file ...]\n", argv0);
}
int
main(int argc, char *argv[])
{
FILE *fp;
int ret = 0;
ARGBEGIN {
case 'u':
setbuf(stdout, NULL);
break;
default:
usage();
} ARGEND;
if (!argc) {
concat(stdin, "<stdin>", stdout, "<stdout>");
} else {
for (; *argv; argc--, argv++) {
if ((*argv)[0] == '-' && !(*argv)[1]) {
*argv = "<stdin>";
fp = stdin;
} else if (!(fp = fopen(*argv, "r"))) {
weprintf("fopen %s:", *argv);
ret = 1;
continue;
}
concat(fp, *argv, stdout, "<stdout>");
if (fp != stdin && fshut(fp, *argv))
ret = 1;
}
}
return !!(fshut(stdin, "<stdin>") + fshut(stdout, "<stdout>")) || ret;
}