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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2014-08-10 04:48:10 (GMT)
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2014-08-10 04:48:10 (GMT)
commit244bf0adc75aa73fb30ab2876ebcb90db9ec172e (patch)
tree464e9d2ca7bdddd6976253004734d95511fb72ae /goruby.c
parentac574fe862ecadb1d81e66eaee5cb15e45720a3c (diff)
goruby.c: suppress warning
* goruby.c (goruby_options): check the result of `write(2)` to suppress unused-result warning. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47128 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'goruby.c')
-rw-r--r--goruby.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/goruby.c b/goruby.c
index 8f7cf30..99042f8 100644
--- a/goruby.c
+++ b/goruby.c
@@ -32,12 +32,14 @@ goruby_options(int argc, char **argv)
void *ret;
if ((isatty(0) && isatty(1) && isatty(2)) && (pipe(rw) == 0)) {
+ ssize_t n;
infd = dup(0);
+ if (infd < 0) return NULL;
dup2(rw[0], 0);
close(rw[0]);
- write(rw[1], cmd, sizeof(cmd) - 1);
+ n = write(rw[1], cmd, sizeof(cmd) - 1);
close(rw[1]);
- ret = ruby_options(argc, argv);
+ ret = n > 0 ? ruby_options(argc, argv) : NULL;
dup2(infd, 0);
close(infd);
return ret;