Mercurial > hg > toybox
annotate toys/catv.c @ 90:7c77c6ec17ee
Add "make defconfig". Modify global options to start with CONFIG_TOYBOX_.
| author | Rob Landley <rob@landley.net> |
|---|---|
| date | Wed, 31 Jan 2007 14:37:01 -0500 |
| parents | 69efffcacd70 |
| children | 6c7836dbc16e |
| rev | line source |
|---|---|
| 35 | 1 /* vi: set sw=4 ts=4: */ |
| 2 /* | |
| 3 * cat -v implementation for toybox | |
| 4 * | |
| 5 * Copyright (C) 2006 Rob Landley <rob@landley.net> | |
| 6 */ | |
| 7 | |
| 8 /* See "Cat -v considered harmful" at | |
| 9 * http://cm.bell-labs.com/cm/cs/doc/84/kp.ps.gz */ | |
| 10 | |
| 11 #include "toys.h" | |
| 12 | |
| 13 int catv_main(void) | |
| 14 { | |
| 15 int retval = 0, fd; | |
| 16 char **argv = toys.optargs; | |
| 17 | |
| 18 toys.optflags^=4; | |
| 19 | |
| 20 // Loop through files. | |
| 21 | |
| 22 do { | |
| 23 // Read from stdin if there's nothing else to do. | |
| 24 | |
| 25 fd = 0; | |
|
49
bb4c38853a7d
xopen() wants 2 arguments unless you're creating a file, in which case you
Rob Landley <rob@landley.net>
parents:
35
diff
changeset
|
26 if (*argv && 0>(fd = xopen(*argv, O_RDONLY))) retval = EXIT_FAILURE; |
| 35 | 27 else for(;;) { |
| 28 int i, res; | |
| 29 | |
|
63
69efffcacd70
Add fdprintf(). Remove reread() and rewrite() which handle -EINTR, which
Rob Landley <rob@landley.net>
parents:
49
diff
changeset
|
30 res = read(fd, toybuf, sizeof(toybuf)); |
| 35 | 31 if (res < 0) retval = EXIT_FAILURE; |
| 32 if (res < 1) break; | |
| 33 for (i=0; i<res; i++) { | |
| 34 char c=toybuf[i]; | |
| 35 | |
| 36 if (c > 126 && (toys.optflags & 4)) { | |
| 37 if (c == 127) { | |
| 38 printf("^?"); | |
| 39 continue; | |
| 40 } else { | |
| 41 printf("M-"); | |
| 42 c -= 128; | |
| 43 } | |
| 44 } | |
| 45 if (c < 32) { | |
| 46 if (c == 10) { | |
| 47 if (toys.optflags & 1) putchar('$'); | |
| 48 } else if (toys.optflags & (c==9 ? 2 : 4)) { | |
| 49 printf("^%c", c+'@'); | |
| 50 continue; | |
| 51 } | |
| 52 } | |
| 53 putchar(c); | |
| 54 } | |
| 55 } | |
|
90
7c77c6ec17ee
Add "make defconfig". Modify global options to start with CONFIG_TOYBOX_.
Rob Landley <rob@landley.net>
parents:
63
diff
changeset
|
56 if (CFG_TOYBOX_FREE && fd) close(fd); |
| 35 | 57 } while (*++argv); |
| 58 | |
| 59 return retval; | |
| 60 } |