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-rw-r--r--coreutils/logname.c2
-rw-r--r--editors/awk.c2
-rw-r--r--loginutils/su.c23
3 files changed, 20 insertions, 7 deletions
diff --git a/coreutils/logname.c b/coreutils/logname.c
index 3400c30..7983d17 100644
--- a/coreutils/logname.c
+++ b/coreutils/logname.c
@@ -27,7 +27,7 @@
int logname_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int logname_main(int argc, char **argv UNUSED_PARAM)
{
- char buf[128];
+ char buf[64];
if (argc > 1) {
bb_show_usage();
diff --git a/editors/awk.c b/editors/awk.c
index 30f09cb..cb98a67 100644
--- a/editors/awk.c
+++ b/editors/awk.c
@@ -114,7 +114,7 @@ typedef struct nvblock_s {
var *pos;
struct nvblock_s *prev;
struct nvblock_s *next;
- var nv[0];
+ var nv[];
} nvblock;
typedef struct tsplitter_s {
diff --git a/loginutils/su.c b/loginutils/su.c
index a8b852b..a3f7ed8 100644
--- a/loginutils/su.c
+++ b/loginutils/su.c
@@ -40,11 +40,24 @@ int su_main(int argc UNUSED_PARAM, char **argv)
if (ENABLE_FEATURE_SU_SYSLOG) {
/* The utmp entry (via getlogin) is probably the best way to identify
- the user, especially if someone su's from a su-shell.
- But getlogin can fail -- usually due to lack of utmp entry.
- in this case resort to getpwuid. */
- old_user = xstrdup(IF_FEATURE_UTMP(getlogin() ? : ) (pw = getpwuid(cur_uid)) ? pw->pw_name : "");
- tty = xmalloc_ttyname(2) ? : "none";
+ * the user, especially if someone su's from a su-shell.
+ * But getlogin can fail -- usually due to lack of utmp entry.
+ * in this case resort to getpwuid. */
+ const char *user;
+#if ENABLE_FEATURE_UTMP
+ char user_buf[64];
+ user = user_buf;
+ if (getlogin_r(user_buf, sizeof(user_buf)) != 0)
+#endif
+ {
+ pw = getpwuid(cur_uid);
+ user = pw ? pw->pw_name : "";
+ }
+ old_user = xstrdup(user);
+ tty = xmalloc_ttyname(2);
+ if (!tty) {
+ tty = "none";
+ }
openlog(applet_name, 0, LOG_AUTH);
}