diff options
| -rw-r--r-- | coreutils/tr.c | 6 | ||||
| -rw-r--r-- | tr.c | 6 |
2 files changed, 8 insertions, 4 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++) @@ -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++) |