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authorGravatar Glenn L McGrath <bug1@ihug.co.nz>2004-07-23 06:43:29 +0000
committerGravatar Glenn L McGrath <bug1@ihug.co.nz>2004-07-23 06:43:29 +0000
commitefc6bf63651496ad5a87aa8b902615e4949c0e3e (patch)
treefa4f1776402e700ed915f9b2363099c42bda8e84 /coreutils/seq.c
parentc0dd26f68d3b7956beed6f32088f73356fe2aa16 (diff)
downloadbusybox-efc6bf63651496ad5a87aa8b902615e4949c0e3e.tar.gz
busybox-efc6bf63651496ad5a87aa8b902615e4949c0e3e.tar.bz2
Patch from Felipe Kellermann, fix endless loop when first > last and
increment > 0.
Diffstat (limited to 'coreutils/seq.c')
-rw-r--r--coreutils/seq.c19
1 files changed, 13 insertions, 6 deletions
diff --git a/coreutils/seq.c b/coreutils/seq.c
index 8a2a80c14..8006be83d 100644
--- a/coreutils/seq.c
+++ b/coreutils/seq.c
@@ -1,4 +1,7 @@
+/* vi: set sw=4 ts=4: */
/*
+ * seq implementation for busybox
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
@@ -27,18 +30,22 @@ extern int seq_main(int argc, char **argv)
if (argc == 4) {
first = atof(argv[1]);
increment = atof(argv[2]);
- }
- else if (argc == 3) {
+ } else if (argc == 3) {
first = atof(argv[1]);
- }
- else if (argc != 2) {
+ } else if (argc != 2) {
bb_show_usage();
}
last = atof(argv[argc - 1]);
- for (i = first; ((first <= last) ? (i <= last): (i >= last));i += increment) {
+ /* You should note that this is pos-5.0.91 semantics, -- FK. */
+ if ((first > last) && (increment > 0)) {
+ return EXIT_SUCCESS;
+ }
+
+ for (i = first; ((first <= last) ? (i <= last) : (i >= last));
+ i += increment) {
printf("%g\n", i);
}
- return(EXIT_SUCCESS);
+ return EXIT_SUCCESS;
}