various files - fix some alerts raised by lgtm code analysis

This patch fixes several issues reported by the lgtm code analysis tool:

https://lgtm.com/projects/g/asterisk/asterisk

Not all reported issues were addressed in this patch. This patch mostly fixes
confirmed reported errors, potential problematic code points, and a few other
"low hanging" warnings or recommendations found in core supported modules.
These include, but are not limited to the following:

* innapropriate stack allocation in loops
* buffer overflows
* variable declaration "hiding" another variable declaration
* comparisons results that are always the same
* ambiguously signed bit-field members
* missing header guards

Change-Id: Id4a881686605d26c94ab5409bc70fcc21efacc25
This commit is contained in:
Kevin Harwell
2019-10-23 12:36:17 -05:00
committed by George Joseph
parent 990a91b44a
commit bdd785d31c
49 changed files with 324 additions and 203 deletions

View File

@@ -2652,9 +2652,10 @@ static int create_vmaccount(char *name, struct ast_variable *var, int realtime)
ast_copy_string(vmu->fullname, var->value, sizeof(vmu->fullname));
} else if (!strcasecmp(var->name, "setvar")) {
char *varval;
char *varname = ast_strdupa(var->value);
char varname[strlen(var->value) + 1];
struct ast_variable *tmpvar;
strcpy(varname, var->value); /* safe */
if ((varval = strchr(varname, '='))) {
*varval = '\0';
varval++;