74096802ee
Daniel Stenberg
2026-06-10
Subject
CURLOPT_WRITEFUNCTION.md: mention redirects
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docs/libcurl/opts/CURLOPT_WRITEFUNCTION.md+7 -2
| @@ -47,6 +47,11 @@ defined in the curl.h header file: *CURL_MAX_WRITE_SIZE* (the usual default is | |
| the write callback, you can get up to *CURL_MAX_HTTP_HEADER* bytes of header | |
| data passed into it. This usually means 100K. | |
| + | The CURLOPT_WRITEFUNCTION(3) callback receives the final response payload. |
| + | When CURLOPT_FOLLOWLOCATION(3) is enabled, libcurl automatically handles |
| + | intermediate 3xx redirects, meaning their HTTP bodies are skipped and not |
| + | passed to this callback. |
| + | |
| This function may be called with zero bytes data if the transferred file is | |
| empty. | |
| @@ -60,8 +65,8 @@ aborted and the libcurl function used returns *CURLE_WRITE_ERROR*. | |
| You can also abort the transfer by returning CURL_WRITEFUNC_ERROR (added in | |
| 7.87.0), which makes *CURLE_WRITE_ERROR* get returned. | |
| - | If the callback function returns CURL_WRITEFUNC_PAUSE it pauses this |
| - | transfer. See curl_easy_pause(3) for further details. |
| + | If the callback function returns CURL_WRITEFUNC_PAUSE it pauses this transfer. |
| + | See curl_easy_pause(3) for further details. |
| Set this option to NULL to get the internal default function used instead of | |
| your callback. The internal default function writes the data to the FILE * | |