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| author | Eric Andersen | 2000-07-10 16:38:50 +0000 |
|---|---|---|
| committer | Eric Andersen | 2000-07-10 16:38:50 +0000 |
| commit | a03d86cf5496a24ccf81bfbf8fdbb10b1ad13a0a (patch) | |
| tree | 2aa0b95f63205b067eac7ef738ba4f41620474c3 /coreutils/tr.c | |
| parent | 44735f874437ee4b570a6780c1f879de80e80fdc (diff) | |
| download | busybox-a03d86cf5496a24ccf81bfbf8fdbb10b1ad13a0a.zip busybox-a03d86cf5496a24ccf81bfbf8fdbb10b1ad13a0a.tar.gz | |
Patch from Matt Kraai <kraai@alumni.carnegiemellon.edu>:
GNU tr complains on the following:
$ tr a ''
tr: when not truncating set1, string2 must be non-empty
BusyBox tr does not complain:
$ tr a ''
a
^D
0
It should result in an error, not in some spurious output. The attached
patch generates an error.
Matt
Diffstat (limited to 'coreutils/tr.c')
| -rw-r--r-- | coreutils/tr.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/coreutils/tr.c b/coreutils/tr.c index 48cdd47..5a8116d 100644 --- a/coreutils/tr.c +++ b/coreutils/tr.c @@ -187,10 +187,12 @@ extern int tr_main(int argc, char **argv) expand(argv[index++], input); if (com_fl) complement(input); - if (argv[index] != NULL) + if (argv[index] != NULL) { + if (*argv[index] == '\0') + fatalError("tr: STRING2 cannot be empty\n"); expand(argv[index], output); - if (argv[index] != NULL) map(input, output); + } for (ptr = input; *ptr; ptr++) invec[*ptr] = TRUE; for (ptr = output; *ptr; ptr++) |