From mboxrd@z Thu Jan 1 00:00:00 1970 From: Elia Pinto Subject: [PATCH 2/2] http.c: implements the GIT_CURL_DEBUG environment variable Date: Fri, 1 Apr 2016 10:44:42 +0000 Message-ID: <1459507482-36678-2-git-send-email-gitter.spiros@gmail.com> References: <1459507482-36678-1-git-send-email-gitter.spiros@gmail.com> Cc: Elia Pinto To: git@vger.kernel.org X-From: git-owner@vger.kernel.org Fri Apr 01 12:44:58 2016 Return-path: Envelope-to: gcvg-git-2@plane.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1alwZW-00049j-3z for gcvg-git-2@plane.gmane.org; Fri, 01 Apr 2016 12:44:58 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758498AbcDAKox (ORCPT ); Fri, 1 Apr 2016 06:44:53 -0400 Received: from mail-wm0-f65.google.com ([74.125.82.65]:33874 "EHLO mail-wm0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754992AbcDAKow (ORCPT ); Fri, 1 Apr 2016 06:44:52 -0400 Received: by mail-wm0-f65.google.com with SMTP id p65so3591420wmp.1 for ; Fri, 01 Apr 2016 03:44:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=/LZkZk3trXQEohWrmQ/8L8SJakbnJsaD3Q1Y1FZVCNI=; b=IiAk6qR5ZF6UpwBL2NhuQ8BJMMMReHzC4creEMYBkLVqu7oazBfReyQTj4Es9gnG5T 1x+kxphNKugLfl8v6yMdnFaWZc6xXfPnyZBUd5r72cL3yd4h0RG/8IXni9z3LIwfWZh+ oEe68hK1byWOFbO5a2dJfKIu6Fr8e7pc4PsXrPDQ2qbdc8389ttN+LOUdMfQ/E0h/8i/ ZBeYCZHFvru/IxkL5MaW5nsgH1eWPTKCFRxBXoj6Q/6p8+I76VgyBO+D9ahIyDGN0XgF MEp2X8hg1E+ZEe0gpyhbJGnkvKQ0zQQaHSFKufNxjjInLb+zvomO5N9tljsLaXNsOLKF V4GQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=/LZkZk3trXQEohWrmQ/8L8SJakbnJsaD3Q1Y1FZVCNI=; b=UkY4TUcYZt7LQfLZC1bnt3nf5YI0o8f9rBZGQNTzRtN8Gqm5zFdtmBAE3J2p/eR62/ t0Nf3T9duLYEm8oaYsW6oynOmRllj82zzH/rby3RXENg3DgDYQEi3XuWwiX1DboH5rur DiA/azqk1enA5NZWpu4CFBdIfL/Zoc1sgTDGXSXpXotNDvxifV8NMOsVrgqy7YZxHSEP /2DDucTMLndfahSKdGmz3PK8uoSldMWmGPS1GzHKKNCUHuOIa7d7vc8iuRsiQNhrLoQ6 2frJlMUHr1SJjNiHi5apY1OrReXl1d7IU9zzgGpxwxqtT5GbpERTeIU0w7QD3nWY1DqG e/cg== X-Gm-Message-State: AD7BkJLckBocgINX+xQglxZAmQZi/KSvAmTxJcRgSBJvXfvf5mKOixTqLaYXilPmLQr/2Q== X-Received: by 10.28.105.5 with SMTP id e5mr3219395wmc.87.1459507490803; Fri, 01 Apr 2016 03:44:50 -0700 (PDT) Received: from ubuntu2pinto.pd5x2phgis1evm2itoce0l41ib.ax.internal.cloudapp.net ([23.101.69.192]) by smtp.gmail.com with ESMTPSA id hq2sm13467438wjb.3.2016.04.01.03.44.50 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 01 Apr 2016 03:44:50 -0700 (PDT) X-Mailer: git-send-email 2.7.0.416.gbf6b42c.dirty In-Reply-To: <1459507482-36678-1-git-send-email-gitter.spiros@gmail.com> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: 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 --- 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