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-rw-r--r--funcs/func_enum.c2
-rw-r--r--funcs/func_odbc.c2
-rw-r--r--funcs/func_strings.c6
3 files changed, 5 insertions, 5 deletions
diff --git a/funcs/func_enum.c b/funcs/func_enum.c
index d69881955..a60b748a7 100644
--- a/funcs/func_enum.c
+++ b/funcs/func_enum.c
@@ -93,7 +93,7 @@ static int function_enum(struct ast_channel *chan, const char *cmd, char *data,
for (s = p = args.number; *s; s++) {
if (*s != '-') {
snprintf(tmp, sizeof(tmp), "%c", *s);
- strncat(num, tmp, sizeof(num));
+ strncat(num, tmp, sizeof(num) - strlen(num) - 1);
}
}
diff --git a/funcs/func_odbc.c b/funcs/func_odbc.c
index fe7e9896d..13701873f 100644
--- a/funcs/func_odbc.c
+++ b/funcs/func_odbc.c
@@ -379,7 +379,7 @@ static int acf_odbc_read(struct ast_channel *chan, const char *cmd, char *s, cha
}
if (!ast_strlen_zero(colnames))
- strncat(colnames, ",", sizeof(colnames) - 1);
+ strncat(colnames, ",", sizeof(colnames) - strlen(colnames) - 1);
namelen = strlen(colnames);
/* Copy data, encoding '\' and ',' for the argument parser */
diff --git a/funcs/func_strings.c b/funcs/func_strings.c
index aaa4b0a97..45d476ef2 100644
--- a/funcs/func_strings.c
+++ b/funcs/func_strings.c
@@ -322,7 +322,7 @@ static int hashkeys_read(struct ast_channel *chan, const char *cmd, char *data,
AST_LIST_TRAVERSE(&chan->varshead, newvar, entries) {
if (strncasecmp(prefix, ast_var_name(newvar), plen) == 0) {
/* Copy everything after the prefix */
- strncat(buf, ast_var_name(newvar) + plen, len);
+ strncat(buf, ast_var_name(newvar) + plen, len - strlen(buf) - 1);
/* Trim the trailing ~ */
buf[strlen(buf) - 1] = ',';
}
@@ -387,8 +387,8 @@ static int hash_read(struct ast_channel *chan, const char *cmd, char *data, char
for (i = 0; i < arg2.argc; i++) {
snprintf(varname, sizeof(varname), HASH_FORMAT, arg.hashname, arg2.col[i]);
varvalue = pbx_builtin_getvar_helper(chan, varname);
- strncat(buf, varvalue, len);
- strncat(buf, ",", len);
+ strncat(buf, varvalue, len - strlen(buf) - 1);
+ strncat(buf, ",", len - strlen(buf) - 1);
}
/* Strip trailing comma */