seq: exit on write errors

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/coreutils/seq.c b/coreutils/seq.c
index 8be25360f..22bf3ec9d 100644
--- a/coreutils/seq.c
+++ b/coreutils/seq.c
@@ -86,7 +86,8 @@ int seq_main(int argc, char **argv)
         v = first;
         n = 0;
         while (increment >= 0 ? v <= last : v >= last) {
-                printf("%s%0*.*f", sep, width, frac_part, v);
+                if (printf("%s%0*.*f", sep, width, frac_part, v) < 0)
+                        break; /* I/O error, bail out (yes, this really happens) */
                 sep = opt_s;
                 /* v += increment; - would accumulate floating point errors */
                 n++;