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Add SQL_ESC to allow single ticks to be escaped

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@7642 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2005-12-27 02:02:23 +00:00
parent 63ed37defd
commit dd161bec3b
2 changed files with 40 additions and 3 deletions
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32
funcs/func_odbc.c
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@@ -351,6 +351,35 @@ acf_out:
return buf;
}
static char *acf_escape(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
{
char *in, *out = buf;
for (in = data; *in && out - buf < len; in++) {
if (*in == '\'') {
*out = '\'';
out++;
}
*out = *in;
out++;
}
*out = '\0';
return buf;
}
struct ast_custom_function escape_function = {
.name = "SQL_ESC",
.synopsis = "Escapes single ticks for use in SQL statements",
.syntax = "SQL_ESC(<string>)",
.desc =
"Used in SQL templates to escape data which may contain single ticks (') which\n"
"are otherwise used to delimit data. For example:\n"
"SELECT foo FROM bar WHERE baz='${SQL_ESC(${ARG1})}'\n",
.read = acf_escape,
.write = NULL,
};
static int init_acf_query(struct ast_config *cfg, char *catg, struct acf_odbc_query **query)
{
char *tmp;
@@ -477,6 +506,7 @@ static int odbc_load_module(void)
}
ast_config_destroy(cfg);
ast_custom_function_register(&escape_function);
out:
ast_mutex_unlock(&query_lock);
return res;
@@ -507,6 +537,8 @@ static int odbc_unload_module(void)
free(lastquery);
queries = NULL;
ast_custom_function_unregister(&escape_function);
ast_mutex_unlock(&query_lock);
return 0;
}