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GET /api/1.2/patches/2221374/?format=api
{ "id": 2221374, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2221374/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ltp/patch/20260409103041.8253-2-chrubis@suse.cz/", "project": { "id": 59, "url": "http://patchwork.ozlabs.org/api/1.2/projects/59/?format=api", "name": "Linux Test Project development", "link_name": "ltp", "list_id": "ltp.lists.linux.it", "list_email": "ltp@lists.linux.it", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260409103041.8253-2-chrubis@suse.cz>", "list_archive_url": null, "date": "2026-04-09T10:30:40", "name": "[1/2] lib: safe_file_ops: Add SAFE_FILE_READ_STR()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "b02136a4f5f23ad7aaec1c9268a0b824789e952e", "submitter": { "id": 8530, "url": "http://patchwork.ozlabs.org/api/1.2/people/8530/?format=api", "name": "Cyril Hrubis", "email": "chrubis@suse.cz" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/ltp/patch/20260409103041.8253-2-chrubis@suse.cz/mbox/", "series": [ { "id": 499269, "url": "http://patchwork.ozlabs.org/api/1.2/series/499269/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ltp/list/?series=499269", "date": "2026-04-09T10:30:39", "name": "Fix proc parsing in newuname01", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/499269/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2221374/comments/", "check": "warning", "checks": "http://patchwork.ozlabs.org/api/patches/2221374/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "ltp@lists.linux.it" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "ltp@picard.linux.it" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n unprotected) header.d=suse.cz header.i=@suse.cz header.a=rsa-sha256\n header.s=susede2_rsa header.b=Upuk97Fy;\n\tdkim=fail reason=\"signature verification failed\" header.d=suse.cz\n header.i=@suse.cz header.a=ed25519-sha256 header.s=susede2_ed25519\n header.b=Q+j1YaW1;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key)\n header.d=suse.cz header.i=@suse.cz header.a=rsa-sha256 header.s=susede2_rsa\n header.b=hGag+QN8;\n\tdkim=neutral header.d=suse.cz header.i=@suse.cz header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=qndyqi7J;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.linux.it\n (client-ip=213.254.12.146; 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a=rsa-sha256; c=relaxed/relaxed; d=suse.cz;\n s=susede2_rsa;\n t=1775730630; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:\n mime-version:mime-version:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=+gcvb69npmLg6i4pLz/R4tYcvpoR6TJ2eMFCwYLyPQ4=;\n b=hGag+QN8Ot4s0uU3ARoItL9HNfLa4XI0HT3c+PTtPNdDfnKpVg9HGMtTVPTfKePDfMaXN3\n wa3LjGpn8q0jWgT20x4Au9b+SrKAQbjQEzqXi66ElBnWcQrv2jONb5nGhYQe6ykEpa8nAw\n eFa4miVI/FvVl5lnuB8zpT4YCE52tjI=", "v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz;\n s=susede2_ed25519; t=1775730630;\n h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:\n mime-version:mime-version:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=+gcvb69npmLg6i4pLz/R4tYcvpoR6TJ2eMFCwYLyPQ4=;\n b=qndyqi7JuWjq7h1owasu1rZZpkGkObWG0+V6bbbSV/QWoSv4d49GIBb7MzpL0Hy4LnRxo5\n Toln0faks7st5tBA==" ], "From": "Cyril Hrubis <chrubis@suse.cz>", "To": "ltp@lists.linux.it", "Date": "Thu, 9 Apr 2026 12:30:40 +0200", "Message-ID": "<20260409103041.8253-2-chrubis@suse.cz>", "X-Mailer": "git-send-email 2.52.0", "In-Reply-To": "<20260409103041.8253-1-chrubis@suse.cz>", "References": "<20260409103041.8253-1-chrubis@suse.cz>", "MIME-Version": "1.0", "X-Spamd-Result": "default: False [-3.01 / 50.00]; BAYES_HAM(-3.00)[100.00%];\n NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[];\n R_MISSING_CHARSET(0.50)[];\n R_DKIM_ALLOW(-0.20)[suse.cz:s=susede2_rsa,suse.cz:s=susede2_ed25519];\n NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain];\n MX_GOOD(-0.01)[]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[];\n RCVD_COUNT_TWO(0.00)[2]; RCPT_COUNT_ONE(0.00)[1];\n MIME_TRACE(0.00)[0:+]; FUZZY_RATELIMITED(0.00)[rspamd.com];\n SPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:97:from];\n FROM_HAS_DN(0.00)[]; FROM_EQ_ENVFROM(0.00)[];\n DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns,suse.cz:mid,suse.cz:dkim,suse.cz:email];\n TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_NONE(0.00)[];\n RCVD_TLS_ALL(0.00)[];\n PREVIOUSLY_DELIVERED(0.00)[ltp@lists.linux.it];\n DNSWL_BLOCKED(0.00)[2a07:de40:b281:106:10:150:64:167:received,2a07:de40:b281:104:10:150:64:97:from];\n DKIM_SIGNED(0.00)[suse.cz:s=susede2_rsa,suse.cz:s=susede2_ed25519];\n DKIM_TRACE(0.00)[suse.cz:+]", "X-Rspamd-Action": "no action", "X-Spam-Score": "-3.01", "X-Spam-Level": "", "X-Rspamd-Server": "rspamd1.dmz-prg2.suse.org", "X-Rspamd-Queue-Id": "E67184EEAF", "X-Spam-Status": "No, score=0.1 required=7.0 tests=DKIM_SIGNED,DKIM_VALID,\n DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS shortcircuit=no\n autolearn=disabled version=4.0.1", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on in-3.smtp.seeweb.it", "X-Virus-Scanned": "clamav-milter 1.0.9 at in-3.smtp.seeweb.it", "X-Virus-Status": "Clean", "Subject": "[LTP] [PATCH 1/2] lib: safe_file_ops: Add SAFE_FILE_READ_STR()", "X-BeenThere": "ltp@lists.linux.it", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "Linux Test Project <ltp.lists.linux.it>", "List-Unsubscribe": "<https://lists.linux.it/options/ltp>,\n <mailto:ltp-request@lists.linux.it?subject=unsubscribe>", "List-Archive": "<http://lists.linux.it/pipermail/ltp/>", "List-Post": "<mailto:ltp@lists.linux.it>", "List-Help": "<mailto:ltp-request@lists.linux.it?subject=help>", "List-Subscribe": "<https://lists.linux.it/listinfo/ltp>,\n <mailto:ltp-request@lists.linux.it?subject=subscribe>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it", "Sender": "\"ltp\" <ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it>" }, "content": "Unlike the scanf(\"%s\") this function can properly handle empty files and\nin case of an empty file produces an empty string.\n\nSigned-off-by: Cyril Hrubis <chrubis@suse.cz>\n---\n include/tst_safe_file_ops.h | 21 +++++++++++++++++++++\n lib/safe_file_ops.c | 24 ++++++++++++++++++++++++\n 2 files changed, 45 insertions(+)", "diff": "diff --git a/include/tst_safe_file_ops.h b/include/tst_safe_file_ops.h\nindex 0d8819594..d9110ba9c 100644\n--- a/include/tst_safe_file_ops.h\n+++ b/include/tst_safe_file_ops.h\n@@ -14,6 +14,27 @@\n \tsafe_file_scanf(__FILE__, __LINE__, NULL, \\\n \t (path), (fmt), ## __VA_ARGS__)\n \n+/**\n+ * SAFE_FILE_READ_STR() - Reads a string from a file.\n+ *\n+ * Unlike scanf(\"%s\") this function works fine with empty files or files that\n+ * consist only of white spaces. In such case an empty string is stored into\n+ * the supplied buffer.\n+ *\n+ * It's recomended to use this for various sysfs or procfs files that may be\n+ * empty.\n+ *\n+ * @path: A path to a file.\n+ * @buf: A buffer to store the string into.\n+ * @buf_size: A buffer size.\n+ */\n+#define SAFE_FILE_READ_STR(path, buf, buf_size) \\\n+\tsafe_file_read_str(__FILE__, __LINE__, \\\n+\t (path), (buf), (buf_size))\n+\n+void safe_file_read_str(const char *file, const int lineno,\n+ const char *path, char *buf, size_t buf_size);\n+\n #define FILE_LINES_SCANF(path, fmt, ...) \\\n \tfile_lines_scanf(__FILE__, __LINE__, NULL, 0,\\\n \t\t\t(path), (fmt), ## __VA_ARGS__)\ndiff --git a/lib/safe_file_ops.c b/lib/safe_file_ops.c\nindex 8314c4b1b..2d163c0af 100644\n--- a/lib/safe_file_ops.c\n+++ b/lib/safe_file_ops.c\n@@ -160,6 +160,30 @@ void safe_file_scanf(const char *file, const int lineno,\n \t}\n }\n \n+void safe_file_read_str(const char *file, const int lineno,\n+ const char *path, char *buf, size_t buf_size)\n+{\n+\tFILE *f;\n+\n+\tf = fopen(path, \"r\");\n+\tif (!f) {\n+\t\ttst_brkm_(file, lineno, TBROK | TERRNO, NULL,\n+\t\t \"Failed to open FILE '%s' for reading\", path);\n+\t}\n+\n+\tif (!fgets(buf, buf_size, f))\n+\t\tbuf[0] = 0;\n+\n+\tsize_t len = strlen(buf);\n+\n+\tif (len && buf[len-1] == '\\n')\n+\t\tbuf[len-1] = 0;\n+\n+\tif (fclose(f)) {\n+\t\ttst_brkm_(file, lineno, TBROK | TERRNO, NULL,\n+\t\t\t\"Failed to close FILE '%s'\", path);\n+\t}\n+}\n \n /*\n * Try to parse each line from file specified by 'path' according\n", "prefixes": [ "1/2" ] }