- Added HttpHdrExtField (moved from HttpHeader.c)

diff --git a/src/HttpHdrExtField.cc b/src/HttpHdrExtField.cc
new file mode 100644 (file)
index 0000000..69b3e04
--- /dev/null
+++ b/src/HttpHdrExtField.cc
@@ -0,0 +1,102 @@
+
+/*
+ * $Id: HttpHdrExtField.cc,v 1.1 1998/03/08 18:59:11 rousskov Exp $
+ *
+ * DEBUG: section 6?    HTTP Header: Extension Field
+ * AUTHOR: Alex Rousskov
+ *
+ * SQUID Internet Object Cache  http://squid.nlanr.net/Squid/
+ * --------------------------------------------------------
+ *
+ *  Squid is the result of efforts by numerous individuals from the
+ *  Internet community.  Development is led by Duane Wessels of the
+ *  National Laboratory for Applied Network Research and funded by
+ *  the National Science Foundation.
+ *
+ *  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.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include "squid.h"
+
+/* local prototypes */
+static HttpHdrExtField *httpHdrExtFieldDoCreate(const char *name, int name_len, const char *value, int val_len);
+
+
+/* implementation */
+
+static HttpHdrExtField *
+httpHdrExtFieldDoCreate(const char *name, int name_len, 
+    const char *value, int value_len)
+{
+    HttpHdrExtField *f = xcalloc(1, sizeof(HttpHdrExtField));
+    stringLimitInit(&f->name, name, name_len);
+    stringLimitInit(&f->value, value, value_len);
+    return f;
+}
+
+HttpHdrExtField *
+httpHdrExtFieldCreate(const char *name, const char *value)
+{
+    return httpHdrExtFieldDoCreate(
+       name, strlen(name), 
+       value, strlen(value));
+}
+
+/* parses ext field; returns fresh ext field on success and NULL on failure */
+HttpHdrExtField *
+httpHdrExtFieldParseCreate(const char *field_start, const char *field_end)
+{
+    /* note: name_start == field_start */
+    const char *name_end = strchr(field_start, ':');
+    const char *value_start;
+    /* note: value_end == field_end */
+
+    if (!name_end || name_end <= field_start || name_end > field_end)
+       return NULL;
+
+    value_start = name_end + 1;        /* skip ':' */
+    /* skip white space */
+    while (value_start < field_end && isspace(*value_start))
+       value_start++;
+
+    /* cut off "; parameter" from Content-Type @?@ why? */
+    if (!strncasecmp(field_start, "Content-Type:", 13)) {
+       const int l = strcspn(value_start, ";\t ");
+       if (l > 0 && value_start + l < field_end)
+           field_end = value_start + l;
+    }
+    return httpHdrExtFieldDoCreate(
+       field_start, name_end - field_start,
+       value_start, field_end - value_start);                             
+}
+
+void
+httpHdrExtFieldDestroy(HttpHdrExtField * f)
+{
+    assert(f);
+    stringClean(&f->name);
+    stringClean(&f->value);
+    xfree(f);
+}
+
+HttpHdrExtField *
+httpHdrExtFieldDup(HttpHdrExtField * f)
+{
+    assert(f);
+    return httpHdrExtFieldDoCreate(
+       strBuf(f->name), strLen(f->name),
+       strBuf(f->value), strLen(f->value));
+}