From 8fcdd6b0ecbb966f4479856efe93a963a7a422f7 Mon Sep 17 00:00:00 2001
From: Sergei Golubchik <serg@mariadb.org>
Date: Tue, 20 Dec 2016 21:16:23 +0100
Subject: Numerous issues in mysqld_safe

---
 extra/CMakeLists.txt       |  3 ++
 extra/mysqld_safe_helper.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 80 insertions(+)
 create mode 100644 extra/mysqld_safe_helper.c

(limited to 'extra')

diff --git a/extra/CMakeLists.txt b/extra/CMakeLists.txt
index f8f71b00743..7f47f878110 100644
--- a/extra/CMakeLists.txt
+++ b/extra/CMakeLists.txt
@@ -82,4 +82,7 @@ IF(UNIX)
 
   MYSQL_ADD_EXECUTABLE(mysql_waitpid mysql_waitpid.c COMPONENT Client)
   TARGET_LINK_LIBRARIES(mysql_waitpid mysys)
+
+  MYSQL_ADD_EXECUTABLE(mysqld_safe_helper mysqld_safe_helper.c COMPONENT Server)
+  TARGET_LINK_LIBRARIES(mysqld_safe_helper mysys)
 ENDIF()
diff --git a/extra/mysqld_safe_helper.c b/extra/mysqld_safe_helper.c
new file mode 100644
index 00000000000..09e507c6e1c
--- /dev/null
+++ b/extra/mysqld_safe_helper.c
@@ -0,0 +1,77 @@
+#include <my_global.h>
+#include <m_string.h>
+#include <my_sys.h>
+#include <my_pthread.h>
+#ifdef HAVE_PWD_H
+#include <pwd.h>
+#endif
+#include <stdlib.h>
+#include <stdio.h>
+
+void my_exit(int c)
+{
+  my_end(0);
+  exit(c);
+}
+
+void do_usage()
+{
+  printf("Usage:\n"
+         "  %s <user> log  <filename>\n"
+         "  %s <user> exec <command> <args>\n",
+         my_progname, my_progname);
+  my_exit(1);
+}
+
+void do_log(const char *logfile)
+{
+  FILE *f;
+  uchar buf[4096];
+  int size;
+
+  if (!logfile)
+    do_usage();
+
+  f= my_fopen(logfile, O_WRONLY|O_APPEND|O_CREAT, MYF(MY_WME));
+  if (!f)
+    my_exit(1);
+
+  while ((size= my_fread(stdin, buf, sizeof(buf), MYF(MY_WME))) > 0)
+    if ((int)my_fwrite(f, buf, size, MYF(MY_WME)) != size)
+      my_exit(1);
+
+  my_fclose(f, MYF(0));
+  my_exit(0);
+}
+
+void do_exec(char *args[])
+{
+  if (!args[0])
+    do_usage();
+
+  my_end(0);
+  execvp(args[0], args);
+}
+
+int main(int argc, char *argv[])
+{
+  struct passwd *user_info;
+  MY_INIT(argv[0]);
+
+  if (argc < 3)
+    do_usage(argv[0]);
+
+  user_info= my_check_user(argv[1], MYF(0));
+  if (user_info ? my_set_user(argv[1], user_info, MYF(MY_WME))
+                : my_errno == EINVAL)
+    my_exit(1);
+
+  if (strcmp(argv[2], "log") == 0)
+    do_log(argv[3]);
+
+  if (strcmp(argv[2], "exec") == 0)
+    do_exec(argv+3);
+
+  my_end(0);
+  return 1;
+}
-- 
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