diff options
| -rw-r--r-- | libbb/u_signal_names.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/libbb/u_signal_names.c b/libbb/u_signal_names.c index 866ca85fd..f7d598c7a 100644 --- a/libbb/u_signal_names.c +++ b/libbb/u_signal_names.c @@ -153,8 +153,12 @@ int FAST_FUNC get_signum(const char *name) { unsigned i; + /* bb_strtou returns UINT_MAX on error. NSIG is smaller + * than UINT_MAX on any sane Unix. Hence no need + * to check errno after bb_strtou(). + */ i = bb_strtou(name, NULL, 10); - if (!errno && i < NSIG) /* for shells, we allow 0 too */ + if (i < NSIG) /* for shells, we allow 0 too */ return i; if (strncasecmp(name, "SIG", 3) == 0) name += 3; @@ -204,7 +208,7 @@ int FAST_FUNC get_signum(const char *name) return sigrtmin; if (name[5] == '+') { i = bb_strtou(name + 6, NULL, 10); - if (!errno && i <= sigrtmax - sigrtmin) + if (i <= sigrtmax - sigrtmin) return sigrtmin + i; } } @@ -213,7 +217,7 @@ int FAST_FUNC get_signum(const char *name) return sigrtmax; if (name[5] == '-') { i = bb_strtou(name + 6, NULL, 10); - if (!errno && i <= sigrtmax - sigrtmin) + if (i <= sigrtmax - sigrtmin) return sigrtmax - i; } } |