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-rw-r--r--cat.c28
1 files changed, 18 insertions, 10 deletions
diff --git a/cat.c b/cat.c
index 8718c4d..5c54c49 100644
--- a/cat.c
+++ b/cat.c
@@ -22,15 +22,27 @@
#include "internal.h"
#include <stdio.h>
-const char cat_usage[] = "[file ...]";
-extern int cat_more_main(int argc, char **argv)
+static void print_file( FILE *file)
{
int c;
- FILE *file = stdin;
+ while ((c = getc(file)) != EOF)
+ putc(c, stdout);
+ fclose(file);
+ fflush(stdout);
+}
+
+extern int cat_more_main(int argc, char **argv)
+{
+ FILE *file;
+
+ if (argc==1) {
+ print_file( stdin);
+ exit( TRUE);
+ }
- if ( (argc < 2) || (**(argv+1) == '-') ) {
- fprintf(stderr, "Usage: %s %s", *argv, cat_usage);
+ if ( **(argv+1) == '-' ) {
+ fprintf(stderr, "Usage: cat [file ...]\n");
exit(FALSE);
}
argc--;
@@ -42,11 +54,7 @@ extern int cat_more_main(int argc, char **argv)
perror(*argv);
exit(FALSE);
}
- while ((c = getc(file)) != EOF)
- putc(c, stdout);
- fclose(file);
- fflush(stdout);
-
+ print_file( file);
argc--;
argv++;
}