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Bug #43414 Parenthesis (and other) warnings compiling MySQL
with gcc 4.3.2
This patch fixes a number of GCC warnings about variables used
before initialized. A new macro UNINIT_VAR() is introduced for
use in the variable declaration, and LINT_INIT() usage will be
gradually deprecated. (A workaround is used for g++, pending a
patch for a g++ bug.)
GCC warnings for unused results (attribute warn_unused_result)
for a number of system calls (present at least in later
Ubuntus, where the usual void cast trick doesn't work) are
also fixed.
client/mysqlmanager-pwgen.c:
A fix for warn_unused_result, adding fallback to use of
srand()/rand() if /dev/random cannot be used. Also actually
adds calls to rand() in the second branch so that it actually
creates a random password.
This commit is contained in:
@@ -1633,7 +1633,7 @@ mysql_ssl_free(MYSQL *mysql __attribute__((unused)))
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*/
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const char * STDCALL
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mysql_get_ssl_cipher(MYSQL *mysql)
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mysql_get_ssl_cipher(MYSQL *mysql __attribute__((unused)))
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{
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DBUG_ENTER("mysql_get_ssl_cipher");
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#ifdef HAVE_OPENSSL
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@@ -1829,7 +1829,7 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
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uint port, const char *unix_socket,ulong client_flag)
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{
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char buff[NAME_LEN+USERNAME_LENGTH+100];
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char *end,*host_info;
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char *end,*host_info= NULL;
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my_socket sock;
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in_addr_t ip_addr;
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struct sockaddr_in sock_addr;
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@@ -1847,7 +1847,6 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
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#endif
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init_sigpipe_variables
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DBUG_ENTER("mysql_real_connect");
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LINT_INIT(host_info);
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DBUG_PRINT("enter",("host: %s db: %s user: %s",
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host ? host : "(Null)",
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