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-rw-r--r--tapset/string.stp9
1 files changed, 5 insertions, 4 deletions
diff --git a/tapset/string.stp b/tapset/string.stp
index 59ba74ee..d03e5570 100644
--- a/tapset/string.stp
+++ b/tapset/string.stp
@@ -27,8 +27,8 @@ function strlen:long(s:string) %{ /* pure */ /* unprivileged */
* starting at the given start position.
*/
function substr:string(str:string,start:long, length:long) %{ /* pure */ /* unprivileged */
- int length = THIS->length >= MAXSTRINGLEN ? MAXSTRINGLEN : THIS->length + 1;
- if (THIS->start >= 0 && length > 0 && THIS->start < strlen(THIS->str))
+ int64_t length = clamp_t(int64_t, THIS->length + 1, 0, MAXSTRINGLEN);
+ if (THIS->start >= 0 && THIS->start < strlen(THIS->str))
strlcpy(THIS->__retvalue, THIS->str + THIS->start, length);
%}
@@ -87,7 +87,8 @@ function text_str:string(input:string)
*/
function text_strn:string(input:string, len:long, quoted:long)
%{ /* pure */ /* unprivileged */
- _stp_text_str(THIS->__retvalue, THIS->input, THIS->len, THIS->quoted, 0);
+ int64_t len = clamp_t(int64_t, THIS->len, 0, MAXSTRINGLEN);
+ _stp_text_str(THIS->__retvalue, THIS->input, len, THIS->quoted, 0);
%}
/**
@@ -162,4 +163,4 @@ function str_replace:string (prnt_str:string, srch_str:string, rplc_str:string)
function strtol:long(str:string, base:long)
%{ /* pure */ /* unprivileged */
THIS->__retvalue = simple_strtol(THIS->str, NULL, THIS->base);
-%} \ No newline at end of file
+%}