Re: [PATCH] don't store temporary value returned from c_str()

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+From: Tomi Ollila <tomi.ollila@iki.fi>\r
+To: Vladimir.Marek@oracle.com, notmuch@notmuchmail.org\r
+Subject: Re: [PATCH] don't store temporary value returned from c_str()\r
+In-Reply-To: <1366405933-17223-1-git-send-email-Vladimir.Marek@oracle.com>\r
+References: <1366405933-17223-1-git-send-email-Vladimir.Marek@oracle.com>\r
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+Date: Sat, 27 Apr 2013 12:33:16 +0300\r
+Message-ID: <m2sj2cjp2b.fsf@guru.guru-group.fi>\r
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+Cc: Vladimir Marek <vlmarek@volny.cz>\r
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+\r
+On Sat, Apr 20 2013, Vladimir.Marek@oracle.com wrote:\r
+\r
+> From: Vladimir Marek <vlmarek@volny.cz>\r
+>\r
+> This is causing problems when compiled by Oracle Studio. Memory pointed\r
+> by (const char*)term was already changed once talloc_strdup was called.\r
+\r
+If that changes, I'd like to understand why (and stated in the commit\r
+message). If that is clear to everyone else I will withdraw the question --\r
+I am not too familiar with these iterators magic... :D\r
+\r
+Tomi\r
+\r
+>\r
+> Signed-off-by: Vladimir Marek <vlmarek@volny.cz>\r
+> ---\r
+>  lib/message.cc |    9 ++++-----\r
+>  1 files changed, 4 insertions(+), 5 deletions(-)\r
+>\r
+> diff --git a/lib/message.cc b/lib/message.cc\r
+> index 8720c1b..8d329d1 100644\r
+> --- a/lib/message.cc\r
+> +++ b/lib/message.cc\r
+> @@ -266,18 +266,17 @@ _notmuch_message_get_term (notmuch_message_t *message,\r
+>                         const char *prefix)\r
+>  {\r
+>      int prefix_len = strlen (prefix);\r
+> -    const char *term = NULL;\r
+>      char *value;\r
+>  \r
+>      i.skip_to (prefix);\r
+>  \r
+> -    if (i != end)\r
+> -    term = (*i).c_str ();\r
+> +    if (i == end)\r
+> +    return NULL;\r
+>  \r
+> -    if (!term || strncmp (term, prefix, prefix_len))\r
+> +    if (strncmp ((*i).c_str(), prefix, prefix_len))\r
+>      return NULL;\r
+>  \r
+> -    value = talloc_strdup (message, term + prefix_len);\r
+> +    value = talloc_strdup (message, (*i).c_str() + prefix_len);\r
+>  \r
+>  #if DEBUG_DATABASE_SANITY\r
+>      i++;\r
+> -- \r
+> 1.7.3.2\r
+>\r
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