diff options
| -rw-r--r-- | src/libudev/libudev-util.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/libudev/libudev-util.c b/src/libudev/libudev-util.c index 337514a13d..ae5e285ec0 100644 --- a/src/libudev/libudev-util.c +++ b/src/libudev/libudev-util.c @@ -84,8 +84,11 @@ uid_t util_lookup_user(struct udev *udev, const char *user) struct passwd *pw; uid_t uid; size_t buflen = sysconf(_SC_GETPW_R_SIZE_MAX); - char *buf = alloca(buflen); + char *buf; + if (buflen == -1) + buflen = 1024; + buf = alloca(buflen); if (streq(user, "root")) return 0; uid = strtoul(user, &endptr, 10); @@ -111,6 +114,8 @@ gid_t util_lookup_group(struct udev *udev, const char *group) size_t buflen = sysconf(_SC_GETGR_R_SIZE_MAX); char *buf = NULL; + if (buflen == -1) + buflen = 1024; if (streq(group, "root")) return 0; gid = strtoul(group, &endptr, 10); |