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| author | Peter Hutterer <peter.hutterer@who-t.net> | 2016-05-25 13:29:32 +1000 |
|---|---|---|
| committer | Peter Hutterer <peter.hutterer@who-t.net> | 2016-06-22 08:48:01 +1000 |
| commit | eb9d47a8aea4f0f202359d8e68907556b92b5997 (patch) | |
| tree | 5d015c910ee45c3745bc76d189adae984cef4ca8 | |
| parent | 28f75d9f9debf4fcc78029e2ddca5c7feac06571 (diff) | |
util: add safe_atoi helper function
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Carlos Garnacho <carlosg@gnome.org>
| -rw-r--r-- | src/libinput-util.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/libinput-util.h b/src/libinput-util.h index 701fe078..051d08f2 100644 --- a/src/libinput-util.h +++ b/src/libinput-util.h @@ -27,6 +27,7 @@ #include <assert.h> #include <unistd.h> +#include <limits.h> #include <math.h> #include <stdarg.h> #include <stdbool.h> @@ -399,4 +400,23 @@ us2ms(uint64_t us) return (uint32_t)(us / 1000); } +static inline bool +safe_atoi(const char *str, int *val) +{ + char *endptr; + long v; + + v = strtol(str, &endptr, 10); + if (str == endptr) + return false; + if (*str != '\0' && *endptr != '\0') + return false; + + if (v > INT_MAX || v < INT_MIN) + return false; + + *val = v; + return true; +} + #endif /* LIBINPUT_UTIL_H */ |