aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorDaniel Stenberg <daniel@haxx.se>2004-08-23 14:22:26 +0000
committerDaniel Stenberg <daniel@haxx.se>2004-08-23 14:22:26 +0000
commit4a4490d5f1fc711b9d402fc0b1be986430b3c797 (patch)
tree7f6ef2d1b55f62175e334a3ef4a571869334d148
parent46313be2f5bf8bfeda5122fb756d2cdd050329d1 (diff)
debug.c is a fresh new example showing how to use the DEBUGFUNCTION to get
lots of fine info from a transfer
-rw-r--r--docs/examples/Makefile.am2
-rw-r--r--docs/examples/debug.c128
2 files changed, 129 insertions, 1 deletions
diff --git a/docs/examples/Makefile.am b/docs/examples/Makefile.am
index 7d7b239fa..6425707d8 100644
--- a/docs/examples/Makefile.am
+++ b/docs/examples/Makefile.am
@@ -9,7 +9,7 @@ EXTRA_DIST = README curlgtk.c sepheaders.c simple.c postit2.c \
ftpupload.c httpput.c simplessl.c ftpgetresp.c http-post.c \
post-callback.c multi-app.c multi-double.c multi-single.c \
multi-post.c fopen.c simplepost.c makefile.dj curlx.c https.c \
- multi-debugcallback.c fileupload.c getinfo.c ftp3rdparty.c
+ multi-debugcallback.c fileupload.c getinfo.c ftp3rdparty.c debug.c
all:
@echo "done"
diff --git a/docs/examples/debug.c b/docs/examples/debug.c
new file mode 100644
index 000000000..153f3839e
--- /dev/null
+++ b/docs/examples/debug.c
@@ -0,0 +1,128 @@
+/*****************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * $Id$
+ */
+
+#include <stdio.h>
+#include <curl/curl.h>
+
+struct data {
+ char trace_ascii; /* 1 or 0 */
+};
+
+static
+void 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, %zd bytes (0x%zx)\n", text, size, size);
+
+ for(i=0; i<size; i+= width) {
+
+ fprintf(stream, "%04zx: ", 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 my_trace(CURL *handle, curl_infotype type,
+ unsigned char *data, size_t size,
+ void *userp)
+{
+ struct data *config = (struct data *)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_HEADER_IN:
+ text = "<= Recv header";
+ break;
+ case CURLINFO_DATA_IN:
+ text = "<= Recv data";
+ break;
+ case CURLINFO_SSL_DATA_IN:
+ text = "<= Recv SSL data";
+ break;
+ case CURLINFO_SSL_DATA_OUT:
+ text = "<= Send SSL data";
+ break;
+ }
+
+ dump(text, stderr, data, size, config->trace_ascii);
+ return 0;
+}
+
+int main(void)
+{
+ CURL *curl;
+ CURLcode res;
+ struct data config;
+
+ config.trace_ascii = 1; /* enable ascii tracing */
+
+ curl = curl_easy_init();
+ if(curl) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &config);
+
+ /* the DEBUGFUNCTION has no effect until we enable VERBOSE */
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+
+ curl_easy_setopt(curl, CURLOPT_URL, "curl.haxx.se");
+ res = curl_easy_perform(curl);
+
+ /* always cleanup */
+ curl_easy_cleanup(curl);
+ }
+ return 0;
+}