Adding upstream version 3.4.23.upstream/3.4.23upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 168 insertions, 0 deletions

diff --git a/src/util/split_qnameval.c b/src/util/split_qnameval.c
new file mode 100644
index 0000000..b166125
--- /dev/null
+++ b/src/util/split_qnameval.c
@@ -0,0 +1,168 @@
+/*++
+/* NAME
+/*	split_qnameval 3
+/* SUMMARY
+/*	name-value splitter
+/* SYNOPSIS
+/*	#include <stringops.h>
+/*
+/*	const char *split_qnameval(buf, name, value)
+/*	char    *buf;
+/*	char    **name;
+/*	char    **value;
+/* DESCRIPTION
+/*	split_qnameval() expects text of the form "key = value"
+/*	or "key =", where the key may be quoted with backslash or
+/*      double quotes. The buffer argument is broken up into the key
+/*      and value substrings.
+/*
+/*	Arguments:
+/* .IP buf
+/*	Result from readlline() or equivalent. The buffer is modified.
+/* .IP key
+/*	Upon successful completion, this is set to the key
+/*	substring.
+/* .IP value
+/*	Upon successful completion, this is set to the value
+/*	substring.
+/* SEE ALSO
+/*	split_nameval(3) name-value splitter
+/* BUGS
+/* DIAGNOSTICS
+/*	The result is a null pointer in case of success, a string
+/*	describing the error otherwise: missing '=' after attribute
+/*	name; missing attribute name.
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	Wietse Venema
+/*	Google, Inc.
+/*	111 8th Avenue
+/*	New York, NY 10011, USA
+/*--*/
+
+/* System libraries. */
+
+#include <sys_defs.h>
+#include <ctype.h>
+#include <string.h>
+
+/* Utility library. */
+
+#include <msg.h>
+#include <stringops.h>
+
+/* split_qnameval - split "key = value", support quoted key */
+
+const char *split_qnameval(char *buf, char **pkey, char **pvalue)
+{
+    int     in_quotes = 0;
+    char   *key;
+    char   *key_end;
+    char   *value;
+
+    for (key = buf; *key && ISSPACE(*key); key++)
+	 /* void */ ;
+    if (*key == 0)
+	return ("no key found; expected format: key = value");
+
+    for (key_end = key; *key_end; key_end++) {
+	if (*key_end == '\\') {
+	    if (*++key_end == 0)
+		break;
+	} else if (ISSPACE(*key_end) || *key_end == '=') {
+	    if (!in_quotes)
+		break;
+	} else if (*key_end == '"') {
+	    in_quotes = !in_quotes;
+	}
+    }
+    if (in_quotes) {
+	return ("unbalanced '\"\'");
+    }
+    value = key_end;
+    while (ISSPACE(*value))
+	value++;
+    if (*value != '=')
+	return ("missing '=' after attribute name");
+    *key_end = 0;
+    do {
+	value++;
+    } while (ISSPACE(*value));
+    trimblanks(value, 0)[0] = 0;
+    *pkey = key;
+    *pvalue = value;
+    return (0);
+}
+
+#ifdef TEST
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+#include <mymalloc.h>
+
+static int compare(int test_number, const char *what,
+		           const char *expect, const char *real)
+{
+    if ((expect == 0 && real == 0)
+	|| (expect != 0 && real != 0 && strcmp(expect, real) == 0)) {
+	return (0);
+    } else {
+	msg_warn("test %d: %s mis-match: expect='%s', real='%s'",
+		 test_number, what, expect ? expect : "(null)",
+		 real ? real : "(null)");
+	return (1);
+    }
+}
+
+int     main(int argc, char **argv)
+{
+    struct test_info {
+	const char *input;
+	const char *expect_result;
+	const char *expect_key;
+	const char *expect_value;
+    };
+    static const struct test_info test_info[] = {
+	/* Unquoted keys. */
+	{"xx = yy", 0, "xx", "yy"},
+	{"xx=yy", 0, "xx", "yy"},
+	{"xx =", 0, "xx", ""},
+	{"xx=", 0, "xx", ""},
+	{"xx", "missing '=' after attribute name", 0, 0},
+	/* Quoted keys. */
+	{"\"xx \" = yy", 0, "\"xx \"", "yy"},
+	{"\"xx \"= yy", 0, "\"xx \"", "yy"},
+	{"\"xx \" =", 0, "\"xx \"", ""},
+	{"\"xx \"=", 0, "\"xx \"", ""},
+	{"\"xx \"", "missing '=' after attribute name", 0, 0},
+	{"\"xx ", "unbalanced '\"'", 0, 0},
+	/* Backslash escapes. */
+	{"\"\\\"xx \" = yy", 0, "\"\\\"xx \"", "yy"},
+	{0,},
+    };
+
+    int     errs = 0;
+    const struct test_info *tp;
+
+    for (tp = test_info; tp->input != 0; tp++) {
+	const char *result;
+	char   *key = 0;
+	char   *value = 0;
+	char   *buf = mystrdup(tp->input);
+	int     test_number = (int) (tp - test_info);
+
+	result = split_qnameval(buf, &key, &value);
+	errs += compare(test_number, "result", tp->expect_result, result);
+	errs += compare(test_number, "key", tp->expect_key, key);
+	errs += compare(test_number, "value", tp->expect_value, value);
+	myfree(buf);
+    }
+    exit(errs);
+}
+
+#endif