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-rw-r--r--lib/sendf.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/lib/sendf.c b/lib/sendf.c
index d3c10b369..77eacdf5f 100644
--- a/lib/sendf.c
+++ b/lib/sendf.c
@@ -237,7 +237,18 @@ void Curl_infof(struct Curl_easy *data, const char *fmt, ...)
size_t len;
char print_buffer[2048 + 1];
va_start(ap, fmt);
- vsnprintf(print_buffer, sizeof(print_buffer), fmt, ap);
+ len = vsnprintf(print_buffer, sizeof(print_buffer), fmt, ap);
+ /*
+ * Indicate truncation of the input by replacing the last 3 characters
+ * with "...", and transfer the newline over in case the format had one.
+ */
+ if(len >= sizeof(print_buffer)) {
+ len = strlen(fmt);
+ if(fmt[--len] == '\n')
+ snprintf(print_buffer + (sizeof(print_buffer) - 5), 5, "...\n");
+ else
+ snprintf(print_buffer + (sizeof(print_buffer) - 4), 4, "...");
+ }
va_end(ap);
len = strlen(print_buffer);
Curl_debug(data, CURLINFO_TEXT, print_buffer, len);