From 08622b553642e4ebc94a3e42468f1f4899d9306d Mon Sep 17 00:00:00 2001
From: Rob Swindell <rob@synchro.net>
Date: Fri, 23 Apr 2021 23:28:28 -0700
Subject: [PATCH] A SAUCE library that can read a SAUCE record or character
file metadata.
---
src/sbbs3/sauce.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++
src/sbbs3/sauce.h | 48 ++++++++++++++++++++++++++++++
2 files changed, 123 insertions(+)
create mode 100644 src/sbbs3/sauce.c
create mode 100644 src/sbbs3/sauce.h
diff --git a/src/sbbs3/sauce.c b/src/sbbs3/sauce.c
new file mode 100644
index 0000000000..a70140a50f
--- /dev/null
+++ b/src/sbbs3/sauce.c
@@ -0,0 +1,75 @@
+/****************************************************************************
+ * @format.tab-size 4 (Plain Text/Source Code File Header) *
+ * @format.use-tabs true (see http://www.synchro.net/ptsc_hdr.html) *
+ * *
+ * Copyright Rob Swindell - http://www.synchro.net/copyright.html *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of the GNU General Public License *
+ * as published by the Free Software Foundation; either version 2 *
+ * of the License, or (at your option) any later version. *
+ * See the GNU General Public License for more details: gpl.txt or *
+ * http://www.fsf.org/copyleft/gpl.html *
+ * *
+ * For Synchronet coding style and modification guidelines, see *
+ * http://www.synchro.net/source.html *
+ * *
+ * Note: If this box doesn't appear square, then you need to fix your tabs. *
+ ****************************************************************************/
+
+#include "sauce.h"
+#include "genwrap.h"
+#include "filewrap.h"
+
+// Saves and restores current file position
+// Note: Does not support comments
+bool sauce_fread_record(FILE* fp, sauce_record_t* record)
+{
+ off_t offset = ftello(fp);
+
+ if(offset == -1)
+ return false;
+
+ if(fseeko(fp, -(int)sizeof(*record), SEEK_END) != 0)
+ return false;
+
+ bool result = fread(record, sizeof(*record), 1, fp) == 1
+ && memcmp(record->id, SAUCE_ID, SAUCE_LEN_ID) == 0
+ && memcmp(record->ver, SAUCE_VERSION, SAUCE_LEN_VERSION) == 0;
+
+ fseeko(fp, offset, SEEK_SET);
+ return result;
+}
+
+// Get 'type' and/or 'info' from SAUCE record of open file (fp) of DataType 'Character'
+bool sauce_fread_charinfo(FILE* fp, enum sauce_char_filetype* type, struct sauce_charinfo* info)
+{
+ sauce_record_t record;
+
+ if(!sauce_fread_record(fp, &record))
+ return false;
+
+ if(record.datatype != sauce_datatype_char)
+ return false;
+
+ if(type != NULL)
+ *type = record.filetype;
+ if(info != NULL) {
+ memset(info, 0, sizeof(*info));
+ SAFECOPY(info->title, record.title), truncsp(info->title);
+ SAFECOPY(info->author, record.author), truncsp(info->author);
+ SAFECOPY(info->group, record.group), truncsp(info->group);
+ SAFECOPY(info->date, record.date), truncsp(info->date);
+ info->width = record.tinfo1;
+ info->height = record.tinfo2;
+ switch(record.filetype) {
+ case sauce_char_filetype_ascii:
+ case sauce_char_filetype_ansi:
+ case sauce_char_filetype_ansimation:
+ if(record.tflags & sauce_ansiflag_nonblink)
+ info->ice_color = true;
+ break;
+ }
+ }
+ return true;
+}
diff --git a/src/sbbs3/sauce.h b/src/sbbs3/sauce.h
new file mode 100644
index 0000000000..ed3c2d3efd
--- /dev/null
+++ b/src/sbbs3/sauce.h
@@ -0,0 +1,48 @@
+/****************************************************************************
+ * @format.tab-size 4 (Plain Text/Source Code File Header) *
+ * @format.use-tabs true (see http://www.synchro.net/ptsc_hdr.html) *
+ * *
+ * Copyright Rob Swindell - http://www.synchro.net/copyright.html *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of the GNU General Public License *
+ * as published by the Free Software Foundation; either version 2 *
+ * of the License, or (at your option) any later version. *
+ * See the GNU General Public License for more details: gpl.txt or *
+ * http://www.fsf.org/copyleft/gpl.html *
+ * *
+ * For Synchronet coding style and modification guidelines, see *
+ * http://www.synchro.net/source.html *
+ * *
+ * Note: If this box doesn't appear square, then you need to fix your tabs. *
+ ****************************************************************************/
+
+#ifndef SAUCE_H_
+#define SAUCE_H_
+
+#include <stdio.h>
+#include <stdbool.h>
+#include "saucedefs.h"
+
+struct sauce_charinfo {
+ char title[SAUCE_LEN_TITLE + 1];
+ char author[SAUCE_LEN_AUTHOR + 1];
+ char group[SAUCE_LEN_GROUP + 1];
+ char date[SAUCE_LEN_DATE + 1];
+ int height;
+ int width;
+ bool ice_color;
+};
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Note: Does not support comments
+bool sauce_fread_record(FILE*, sauce_record_t*);
+bool sauce_fread_charinfo(FILE*, enum sauce_char_filetype*, struct sauce_charinfo*);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* Don't add anything after this line */
--
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