Description:
The insert_test client test program in mysql-4.0.18/client seg faults when
mysql_real_connect() is called. This is due to that function's need to have
mysql_init() called before it. The mysql_init() function is not called in
insert_test.c and therefore the program crashes.
How to repeat:
1) Compile insert_test
2) Run insert_test
>gdb ./insert_test
GNU gdb 5.3
Copyright 2002 Free Software Foundation, Inc.
(gdb) r test 1
Starting program: /home/tmp/mysql-4.0.18/client/insert_test test 1
Program received signal SIGSEGV, Segmentation fault.
0x400e0cb4 in free () from /lib/libc.so.6
(gdb) where
#0 0x400e0cb4 in free () from /lib/libc.so.6
#1 0x4003f026 in my_no_flags_free () from /usr/lib/libmysqlclient.so.12
#2 0x4003aed9 in mysql_real_connect () from /usr/lib/libmysqlclient.so.12
#3 0x080486ec in main ()
#4 0x40085d8c in __libc_start_main () from /lib/libc.so.6
Suggested fix:
--- insert_test.c.orig 2004-03-15 14:40:22.000000000 -0700
+++ insert_test.c 2004-03-15 14:39:58.000000000 -0700
@@ -33,6 +33,7 @@
exit(1);
}
+ mysql_init(&mysql);
if (!(sock = mysql_real_connect(&mysql,NULL,NULL,NULL,argv[1],0,NULL,0)))
{
fprintf(stderr,"Couldn't connect to engine!\n%s\n",mysql_error(&mysql));
Description: The insert_test client test program in mysql-4.0.18/client seg faults when mysql_real_connect() is called. This is due to that function's need to have mysql_init() called before it. The mysql_init() function is not called in insert_test.c and therefore the program crashes. How to repeat: 1) Compile insert_test 2) Run insert_test >gdb ./insert_test GNU gdb 5.3 Copyright 2002 Free Software Foundation, Inc. (gdb) r test 1 Starting program: /home/tmp/mysql-4.0.18/client/insert_test test 1 Program received signal SIGSEGV, Segmentation fault. 0x400e0cb4 in free () from /lib/libc.so.6 (gdb) where #0 0x400e0cb4 in free () from /lib/libc.so.6 #1 0x4003f026 in my_no_flags_free () from /usr/lib/libmysqlclient.so.12 #2 0x4003aed9 in mysql_real_connect () from /usr/lib/libmysqlclient.so.12 #3 0x080486ec in main () #4 0x40085d8c in __libc_start_main () from /lib/libc.so.6 Suggested fix: --- insert_test.c.orig 2004-03-15 14:40:22.000000000 -0700 +++ insert_test.c 2004-03-15 14:39:58.000000000 -0700 @@ -33,6 +33,7 @@ exit(1); } + mysql_init(&mysql); if (!(sock = mysql_real_connect(&mysql,NULL,NULL,NULL,argv[1],0,NULL,0))) { fprintf(stderr,"Couldn't connect to engine!\n%s\n",mysql_error(&mysql));