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-rw-r--r--unix/tclUnixPipe.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/unix/tclUnixPipe.c b/unix/tclUnixPipe.c
index eb3a218..105f032 100644
--- a/unix/tclUnixPipe.c
+++ b/unix/tclUnixPipe.c
@@ -212,7 +212,7 @@ TclpCreateTempFile(
if (contents != NULL) {
native = Tcl_UtfToExternalDString(NULL, contents, -1, &dstring);
- if (write(fd, native, strlen(native)) == -1) {
+ if (write(fd, native, Tcl_DStringLength(&dstring)) == -1) {
close(fd);
Tcl_DStringFree(&dstring);
return NULL;