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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:46:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:46:30 +0000
commitb5896ba9f6047e7031e2bdee0622d543e11a6734 (patch)
treefd7b460593a2fee1be579bec5697e6d887ea3421 /src/util/dict_inline.c
parentInitial commit. (diff)
downloadpostfix-b5896ba9f6047e7031e2bdee0622d543e11a6734.tar.xz
postfix-b5896ba9f6047e7031e2bdee0622d543e11a6734.zip
Adding upstream version 3.4.23.upstream/3.4.23upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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-rw-r--r--src/util/dict_inline.c150
1 files changed, 150 insertions, 0 deletions
diff --git a/src/util/dict_inline.c b/src/util/dict_inline.c
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+/*++
+/* NAME
+/* dict_inline 3
+/* SUMMARY
+/* dictionary manager interface for inline table
+/* SYNOPSIS
+/* #include <dict_inline.h>
+/*
+/* DICT *dict_inline_open(name, open_flags, dict_flags)
+/* const char *name;
+/* int open_flags;
+/* int dict_flags;
+/* DESCRIPTION
+/* dict_inline_open() opens a read-only, in-memory table.
+/* Example: "\fBinline:{\fIkey_1=value_1, ..., key_n=value_n\fR}".
+/* The longer form with { key = value } allows values that
+/* contain whitespace or comma.
+/* SEE ALSO
+/* dict(3) generic dictionary manager
+/* LICENSE
+/* .ad
+/* .fi
+/* The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/* Wietse Venema
+/* IBM T.J. Watson Research
+/* P.O. Box 704
+/* Yorktown Heights, NY 10598, USA
+/*
+/* Wietse Venema
+/* Google, Inc.
+/* 111 8th Avenue
+/* New York, NY 10011, USA
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+#include <string.h>
+
+/* Utility library. */
+
+#include <msg.h>
+#include <mymalloc.h>
+#include <stringops.h>
+#include <dict.h>
+#include <dict_ht.h>
+#include <dict_inline.h>
+
+/* Application-specific. */
+
+/* dict_inline_open - open inline table */
+
+DICT *dict_inline_open(const char *name, int open_flags, int dict_flags)
+{
+ DICT *dict;
+ char *cp, *saved_name = 0;
+ size_t len;
+ char *nameval, *vname, *value;
+ const char *err = 0;
+ char *free_me = 0;
+ int count = 0;
+
+ /*
+ * Clarity first. Let the optimizer worry about redundant code.
+ */
+#define DICT_INLINE_RETURN(x) do { \
+ DICT *__d = (x); \
+ if (saved_name != 0) \
+ myfree(saved_name); \
+ if (free_me != 0) \
+ myfree(free_me); \
+ return (__d); \
+ } while (0)
+
+ /*
+ * Sanity checks.
+ */
+ if (open_flags != O_RDONLY)
+ DICT_INLINE_RETURN(dict_surrogate(DICT_TYPE_INLINE, name,
+ open_flags, dict_flags,
+ "%s:%s map requires O_RDONLY access mode",
+ DICT_TYPE_INLINE, name));
+
+ /*
+ * UTF-8 syntax check.
+ */
+ if (DICT_NEED_UTF8_ACTIVATION(util_utf8_enable, dict_flags)
+ && allascii(name) == 0
+ && valid_utf8_string(name, strlen(name)) == 0)
+ DICT_INLINE_RETURN(dict_surrogate(DICT_TYPE_INLINE, name,
+ open_flags, dict_flags,
+ "bad UTF-8 syntax: \"%s:%s\"; "
+ "need \"%s:{name=value...}\"",
+ DICT_TYPE_INLINE, name,
+ DICT_TYPE_INLINE));
+
+ /*
+ * Parse the table into its constituent name=value pairs.
+ */
+ if ((len = balpar(name, CHARS_BRACE)) == 0 || name[len] != 0
+ || *(cp = saved_name = mystrndup(name + 1, len - 2)) == 0)
+ DICT_INLINE_RETURN(dict_surrogate(DICT_TYPE_INLINE, name,
+ open_flags, dict_flags,
+ "bad syntax: \"%s:%s\"; "
+ "need \"%s:{name=value...}\"",
+ DICT_TYPE_INLINE, name,
+ DICT_TYPE_INLINE));
+
+ /*
+ * Reuse the "internal" dictionary type.
+ */
+ dict = dict_open3(DICT_TYPE_HT, name, open_flags, dict_flags);
+ dict_type_override(dict, DICT_TYPE_INLINE);
+ while ((nameval = mystrtokq(&cp, CHARS_COMMA_SP, CHARS_BRACE)) != 0) {
+ if (nameval[0] == CHARS_BRACE[0])
+ err = free_me = extpar(&nameval, CHARS_BRACE, EXTPAR_FLAG_STRIP);
+ if (err != 0 || (err = split_qnameval(nameval, &vname, &value)) != 0)
+ break;
+
+ if ((dict->flags & DICT_FLAG_SRC_RHS_IS_FILE) != 0) {
+ VSTRING *base64_buf;
+
+ if ((base64_buf = dict_file_to_b64(dict, value)) == 0) {
+ err = free_me = dict_file_get_error(dict);
+ break;
+ }
+ value = vstring_str(base64_buf);
+ }
+ /* No duplicate checks. See comments in dict_thash.c. */
+ dict->update(dict, vname, value);
+ count += 1;
+ }
+ if (err != 0 || count == 0) {
+ dict->close(dict);
+ DICT_INLINE_RETURN(dict_surrogate(DICT_TYPE_INLINE, name,
+ open_flags, dict_flags,
+ "%s: \"%s:%s\"; "
+ "need \"%s:{name=%s...}\"",
+ err != 0 ? err : "empty table",
+ DICT_TYPE_INLINE, name,
+ DICT_TYPE_INLINE,
+ (dict_flags & DICT_FLAG_SRC_RHS_IS_FILE) ?
+ "filename" : "value"));
+ }
+ dict->owner.status = DICT_OWNER_TRUSTED;
+
+ dict_file_purge_buffers(dict);
+ DICT_INLINE_RETURN(DICT_DEBUG (dict));
+}