39 lines
753 B
C
39 lines
753 B
C
/* See LICENSE file for copyright and license details. */
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include "util.h"
|
|
|
|
static void cat(FILE *, const char *);
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
FILE *fp;
|
|
|
|
if(getopt(argc, argv, "") != -1)
|
|
exit(EXIT_FAILURE);
|
|
if(optind == argc)
|
|
cat(stdin, "<stdin>");
|
|
else for(; optind < argc; optind++) {
|
|
if(!(fp = fopen(argv[optind], "r")))
|
|
eprintf("fopen %s:", argv[optind]);
|
|
cat(fp, argv[optind]);
|
|
fclose(fp);
|
|
}
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
void
|
|
cat(FILE *fp, const char *str)
|
|
{
|
|
char buf[BUFSIZ];
|
|
size_t n;
|
|
|
|
while((n = fread(buf, 1, sizeof buf, fp)) > 0)
|
|
if(fwrite(buf, 1, n, stdout) != n)
|
|
eprintf("<stdout>: write error:");
|
|
if(ferror(fp))
|
|
eprintf("%s: read error:", str);
|
|
}
|