Implements the GIT_CURL_DEBUG environment variable to allow a greater
degree of detail of GIT_CURL_VERBOSE, in particular the complete
transport header and all the data payload exchanged.
It might be useful if a particular situation could require a more
thorough debugging analysis.
Signed-off-by: Elia Pinto <gitter.spiros@xxxxxxxxx>
---
http.c | 97 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 96 insertions(+), 1 deletion(-)
diff --git a/http.c b/http.c
index dfc53c1..079779d 100644
--- a/http.c
+++ b/http.c
@@ -437,6 +437,97 @@ static void set_curl_keepalive(CURL *c)
}
#endif
+
+static
+void curl_dump(const char *text,
+ FILE * stream, unsigned char *ptr, size_t size, char nohex)
+{
+ size_t i;
+ size_t c;
+
+ unsigned int width = 0x10;
+
+ if (nohex)
+ /* without the hex output, we can fit more on screen */
+ width = 0x40;
+
+ fprintf(stream, "%s, %10.10ld bytes (0x%8.8lx)\n",
+ text, (long)size, (long)size);
+
+ for (i = 0; i < size; i += width) {
+
+ fprintf(stream, "%4.4lx: ", (long)i);
+
+ if (!nohex) {
+ /* hex not disabled, show it */
+ for (c = 0; c < width; c++)
+ if (i + c < size)
+ fprintf(stream, "%02x ", ptr[i + c]);
+ else
+ fputs(" ", stream);
+ }
+
+ for (c = 0; (c < width) && (i + c < size); c++) {
+ /* check for 0D0A; if found, skip past and start a new line of output */
+ if (nohex && (i + c + 1 < size) && ptr[i + c] == 0x0D
+ && ptr[i + c + 1] == 0x0A) {
+ i += (c + 2 - width);
+ break;
+ }
+ fprintf(stream, "%c",
+ (ptr[i + c] >= 0x20)
+ && (ptr[i + c] < 0x80) ? ptr[i + c] : '.');
+ /* check again for 0D0A, to avoid an extra \n if it's at width */
+ if (nohex && (i + c + 2 < size)
+ && ptr[i + c + 1] == 0x0D
+ && ptr[i + c + 2] == 0x0A) {
+ i += (c + 3 - width);
+ break;
+ }
+ }
+ fputc('\n', stream); /* newline */
+ }
+ fflush(stream);
+}
+
+static
+int curl_trace(CURL * handle, curl_infotype type,
+ char *data, size_t size, void *userp)
+{
+ const char *text;
+ (void)handle; /* prevent compiler warning */
+
+ switch (type) {
+ case CURLINFO_TEXT:
+ fprintf(stderr, "== Info: %s", data);
+ default: /* in case a new one is introduced to shock us */
+ return 0;
+
+ case CURLINFO_HEADER_OUT:
+ text = "=> Send header";
+ break;
+ case CURLINFO_DATA_OUT:
+ text = "=> Send data";
+ break;
+ case CURLINFO_SSL_DATA_OUT:
+ text = "=> Send SSL data";
+ break;
+ case CURLINFO_HEADER_IN:
+ text = "<= Recv header";
+ break;
+ case CURLINFO_DATA_IN:
+ text = "<= Recv data";
+ break;
+ case CURLINFO_SSL_DATA_IN:
+ text = "<= Recv SSL data";
+ break;
+ }
+
+ curl_dump(text, stderr, (unsigned char *)data, size, 1);
+ return 0;
+}
+
+
static CURL *get_curl_handle(void)
{
CURL *result = curl_easy_init();
@@ -532,7 +623,11 @@ static CURL *get_curl_handle(void)
"your curl version is too old (>= 7.19.4)");
#endif
- if (getenv("GIT_CURL_VERBOSE"))
+ if (getenv("GIT_CURL_DEBUG")) {
+ curl_easy_setopt(result, CURLOPT_VERBOSE, 1);
+ curl_easy_setopt(result, CURLOPT_DEBUGFUNCTION, curl_trace);
+ curl_easy_setopt(result, CURLOPT_DEBUGDATA, NULL);
+ } else if (getenv("GIT_CURL_VERBOSE"))
curl_easy_setopt(result, CURLOPT_VERBOSE, 1);
curl_easy_setopt(result, CURLOPT_USERAGENT,
--
2.7.0.416.gbf6b42c.dirty
--
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