Adding upstream version 3.4.23.upstream/3.4.23upstream

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

1 files changed, 251 insertions, 0 deletions

diff --git a/src/util/attr_print0.c b/src/util/attr_print0.c
new file mode 100644
index 0000000..27fb7be
--- /dev/null
+++ b/src/util/attr_print0.c
@@ -0,0 +1,251 @@
+/*++
+/* NAME
+/*	attr_print0 3
+/* SUMMARY
+/*	send attributes over byte stream
+/* SYNOPSIS
+/*	#include <attr.h>
+/*
+/*	int	attr_print0(fp, flags, type, name, ..., ATTR_TYPE_END)
+/*	VSTREAM	fp;
+/*	int	flags;
+/*	int	type;
+/*	char	*name;
+/*
+/*	int	attr_vprint0(fp, flags, ap)
+/*	VSTREAM	fp;
+/*	int	flags;
+/*	va_list	ap;
+/* DESCRIPTION
+/*	attr_print0() takes zero or more (name, value) simple attributes
+/*	and converts its input to a byte stream that can be recovered with
+/*	attr_scan0(). The stream is not flushed.
+/*
+/*	attr_vprint0() provides an alternate interface that is convenient
+/*	for calling from within variadic functions.
+/*
+/*	Attributes are sent in the requested order as specified with the
+/*	attr_print0() argument list. This routine satisfies the formatting
+/*	rules as outlined in attr_scan0(3).
+/*
+/*	Arguments:
+/* .IP fp
+/*	Stream to write the result to.
+/* .IP flags
+/*	The bit-wise OR of zero or more of the following.
+/* .RS
+/* .IP ATTR_FLAG_MORE
+/*	After sending the requested attributes, leave the output stream in
+/*	a state that is usable for more attribute sending operations on
+/*	the same output attribute list.
+/*	By default, attr_print0() automatically appends an attribute list
+/*	terminator when it has sent the last requested attribute.
+/* .RE
+/* .IP List of attributes followed by terminator:
+/* .RS
+/* .IP "SEND_ATTR_INT(const char *name, int value)"
+/*	The arguments are an attribute name and an integer.
+/* .IP "SEND_ATTR_LONG(const char *name, long value)"
+/*	The arguments are an attribute name and a long integer.
+/* .IP "SEND_ATTR_STR(const char *name, const char *value)"
+/*	The arguments are an attribute name and a null-terminated
+/*	string.
+/* .IP "SEND_ATTR_DATA(const char *name, ssize_t len, const void *value)"
+/*	The arguments are an attribute name, an attribute value
+/*	length, and an attribute value pointer.
+/* .IP "SEND_ATTR_FUNC(ATTR_PRINT_SLAVE_FN, const void *value)"
+/*	The arguments are a function pointer and generic data
+/*	pointer. The caller-specified function returns whatever the
+/*	specified attribute printing function returns.
+/* .IP "SEND_ATTR_HASH(const HTABLE *table)"
+/* .IP "SEND_ATTR_NAMEVAL(const NVTABLE *table)"
+/*	The content of the table is sent as a sequence of string-valued
+/*	attributes with names equal to the table lookup keys.
+/* .IP ATTR_TYPE_END
+/*	This terminates the attribute list.
+/* .RE
+/* DIAGNOSTICS
+/*	The result value is 0 in case of success, VSTREAM_EOF in case
+/*	of trouble.
+/*
+/*	Panic: interface violation. All system call errors are fatal.
+/* SEE ALSO
+/*	attr_scan0(3) recover attributes from byte stream
+/* 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 <stdarg.h>
+#include <string.h>
+
+/* Utility library. */
+
+#include <msg.h>
+#include <mymalloc.h>
+#include <vstream.h>
+#include <htable.h>
+#include <attr.h>
+#include <base64_code.h>
+
+#define STR(x) vstring_str(x)
+#define LEN(x) VSTRING_LEN(x)
+
+/* attr_vprint0 - send attribute list to stream */
+
+int     attr_vprint0(VSTREAM *fp, int flags, va_list ap)
+{
+    const char *myname = "attr_print0";
+    int     attr_type;
+    char   *attr_name;
+    unsigned int_val;
+    unsigned long long_val;
+    char   *str_val;
+    HTABLE_INFO **ht_info_list;
+    HTABLE_INFO **ht;
+    ssize_t len_val;
+    static VSTRING *base64_buf;
+    ATTR_PRINT_SLAVE_FN print_fn;
+    void   *print_arg;
+
+    /*
+     * Sanity check.
+     */
+    if (flags & ~ATTR_FLAG_ALL)
+	msg_panic("%s: bad flags: 0x%x", myname, flags);
+
+    /*
+     * Iterate over all (type, name, value) triples, and produce output on
+     * the fly.
+     */
+    while ((attr_type = va_arg(ap, int)) != ATTR_TYPE_END) {
+	switch (attr_type) {
+	case ATTR_TYPE_INT:
+	    attr_name = va_arg(ap, char *);
+	    vstream_fwrite(fp, attr_name, strlen(attr_name) + 1);
+	    int_val = va_arg(ap, int);
+	    vstream_fprintf(fp, "%u", (unsigned) int_val);
+	    VSTREAM_PUTC('\0', fp);
+	    if (msg_verbose)
+		msg_info("send attr %s = %u", attr_name, int_val);
+	    break;
+	case ATTR_TYPE_LONG:
+	    attr_name = va_arg(ap, char *);
+	    vstream_fwrite(fp, attr_name, strlen(attr_name) + 1);
+	    long_val = va_arg(ap, unsigned long);
+	    vstream_fprintf(fp, "%lu", (unsigned long) long_val);
+	    VSTREAM_PUTC('\0', fp);
+	    if (msg_verbose)
+		msg_info("send attr %s = %lu", attr_name, long_val);
+	    break;
+	case ATTR_TYPE_STR:
+	    attr_name = va_arg(ap, char *);
+	    vstream_fwrite(fp, attr_name, strlen(attr_name) + 1);
+	    str_val = va_arg(ap, char *);
+	    vstream_fwrite(fp, str_val, strlen(str_val) + 1);
+	    if (msg_verbose)
+		msg_info("send attr %s = %s", attr_name, str_val);
+	    break;
+	case ATTR_TYPE_DATA:
+	    attr_name = va_arg(ap, char *);
+	    vstream_fwrite(fp, attr_name, strlen(attr_name) + 1);
+	    len_val = va_arg(ap, ssize_t);
+	    str_val = va_arg(ap, char *);
+	    if (base64_buf == 0)
+		base64_buf = vstring_alloc(10);
+	    base64_encode(base64_buf, str_val, len_val);
+	    vstream_fwrite(fp, STR(base64_buf), LEN(base64_buf) + 1);
+	    if (msg_verbose)
+		msg_info("send attr %s = [data %ld bytes]",
+			 attr_name, (long) len_val);
+	    break;
+	case ATTR_TYPE_FUNC:
+	    print_fn = va_arg(ap, ATTR_PRINT_SLAVE_FN);
+	    print_arg = va_arg(ap, void *);
+	    print_fn(attr_print0, fp, flags | ATTR_FLAG_MORE, print_arg);
+	    break;
+	case ATTR_TYPE_HASH:
+	    vstream_fwrite(fp, ATTR_NAME_OPEN, sizeof(ATTR_NAME_OPEN));
+	    ht_info_list = htable_list(va_arg(ap, HTABLE *));
+	    for (ht = ht_info_list; *ht; ht++) {
+		vstream_fwrite(fp, ht[0]->key, strlen(ht[0]->key) + 1);
+		vstream_fwrite(fp, ht[0]->value, strlen(ht[0]->value) + 1);
+		if (msg_verbose)
+		    msg_info("send attr name %s value %s",
+			     ht[0]->key, (char *) ht[0]->value);
+	    }
+	    myfree((void *) ht_info_list);
+	    vstream_fwrite(fp, ATTR_NAME_CLOSE, sizeof(ATTR_NAME_CLOSE));
+	    break;
+	default:
+	    msg_panic("%s: unknown type code: %d", myname, attr_type);
+	}
+    }
+    if ((flags & ATTR_FLAG_MORE) == 0)
+	VSTREAM_PUTC('\0', fp);
+    return (vstream_ferror(fp));
+}
+
+int     attr_print0(VSTREAM *fp, int flags,...)
+{
+    va_list ap;
+    int     ret;
+
+    va_start(ap, flags);
+    ret = attr_vprint0(fp, flags, ap);
+    va_end(ap);
+    return (ret);
+}
+
+#ifdef TEST
+
+ /*
+  * Proof of concept test program.  Mirror image of the attr_scan0 test
+  * program.
+  */
+#include <msg_vstream.h>
+
+int     main(int unused_argc, char **argv)
+{
+    HTABLE *table = htable_create(1);
+
+    msg_vstream_init(argv[0], VSTREAM_ERR);
+    msg_verbose = 1;
+    htable_enter(table, "foo-name", mystrdup("foo-value"));
+    htable_enter(table, "bar-name", mystrdup("bar-value"));
+    attr_print0(VSTREAM_OUT, ATTR_FLAG_NONE,
+		SEND_ATTR_INT(ATTR_NAME_INT, 4711),
+		SEND_ATTR_LONG(ATTR_NAME_LONG, 1234L),
+		SEND_ATTR_STR(ATTR_NAME_STR, "whoopee"),
+		SEND_ATTR_DATA(ATTR_NAME_DATA, strlen("whoopee"), "whoopee"),
+		SEND_ATTR_HASH(table),
+		SEND_ATTR_LONG(ATTR_NAME_LONG, 4321L),
+		ATTR_TYPE_END);
+    attr_print0(VSTREAM_OUT, ATTR_FLAG_NONE,
+		SEND_ATTR_INT(ATTR_NAME_INT, 4711),
+		SEND_ATTR_LONG(ATTR_NAME_LONG, 1234L),
+		SEND_ATTR_STR(ATTR_NAME_STR, "whoopee"),
+		SEND_ATTR_DATA(ATTR_NAME_DATA, strlen("whoopee"), "whoopee"),
+		ATTR_TYPE_END);
+    if (vstream_fflush(VSTREAM_OUT) != 0)
+	msg_fatal("write error: %m");
+
+    htable_free(table, myfree);
+    return (0);
+}
+
+#endif