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Diffstat (limited to 'coreutils/catv.c')
-rw-r--r--coreutils/catv.c44
1 files changed, 25 insertions, 19 deletions
diff --git a/coreutils/catv.c b/coreutils/catv.c
index e182039..f8229c2 100644
--- a/coreutils/catv.c
+++ b/coreutils/catv.c
@@ -14,49 +14,55 @@
int catv_main(int argc, char **argv)
{
- int retval = EXIT_SUCCESS, fd, flags;
+ int retval = EXIT_SUCCESS, fd;
+ unsigned long flags;
flags = bb_getopt_ulflags(argc, argv, "etv");
- flags ^= 4;
-
- // Loop through files.
+#define CATV_OPT_e (1<<0)
+#define CATV_OPT_t (1<<1)
+#define CATV_OPT_v (1<<2)
+ flags ^= CATV_OPT_v;
argv += optind;
do {
- // Read from stdin if there's nothing else to do.
-
+ /* Read from stdin if there's nothing else to do. */
fd = 0;
- if (*argv && 0>(fd = xopen(*argv, O_RDONLY))) retval = EXIT_FAILURE;
- else for(;;) {
+ if (*argv && 0 > (fd = xopen(*argv, O_RDONLY)))
+ retval = EXIT_FAILURE;
+ else for (;;) {
int i, res;
res = read(fd, bb_common_bufsiz1, sizeof(bb_common_bufsiz1));
- if (res < 0) retval = EXIT_FAILURE;
- if (res <1) break;
- for (i=0; i<res; i++) {
- char c=bb_common_bufsiz1[i];
+ if (res < 0)
+ retval = EXIT_FAILURE;
+ if (res < 1)
+ break;
+ for (i = 0; i < res; i++) {
+ char c = bb_common_bufsiz1[i];
- if (c > 126 && (flags & 4)) {
+ if (c > 126 && (flags & CATV_OPT_v)) {
if (c == 127) {
- printf("^?");
+ bb_printf("^?");
continue;
} else {
- printf("M-");
+ bb_printf("M-");
c -= 128;
}
}
if (c < 32) {
if (c == 10) {
- if (flags & 1) putchar('$');
- } else if (flags & (c==9 ? 2 : 4)) {
- printf("^%c", c+'@');
+ if (flags & CATV_OPT_e)
+ putchar('$');
+ } else if (flags & (c==9 ? CATV_OPT_t : CATV_OPT_v)) {
+ bb_printf("^%c", c+'@');
continue;
}
}
putchar(c);
}
}
- if (ENABLE_FEATURE_CLEAN_UP && fd) close(fd);
+ if (ENABLE_FEATURE_CLEAN_UP && fd)
+ close(fd);
} while (*++argv);
return retval;