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-rw-r--r--src/util/argv_attr_scan.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/src/util/argv_attr_scan.c b/src/util/argv_attr_scan.c
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+++ b/src/util/argv_attr_scan.c
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+/*++
+/* NAME
+/* argv_attr_scan
+/* SUMMARY
+/* read ARGV from stream
+/* SYNOPSIS
+/* #include <argv_attr.h>
+/*
+/* int argv_attr_scan(scan_fn, stream, flags, ptr)
+/* ATTR_SCAN_MASTER_FN scan_fn;
+/* VSTREAM *stream;
+/* int flags;
+/* void *ptr;
+/* DESCRIPTION
+/* argv_attr_scan() creates an ARGV and reads its contents
+/* from the named stream using the specified attribute scan
+/* routine. argv_attr_scan() is meant to be passed as a call-back
+/* to attr_scan(), thusly:
+/*
+/* ARGV *argv = 0;
+/* ...
+/* ... RECV_ATTR_FUNC(argv_attr_scan, (void *) &argv), ...
+/* ...
+/* if (argv)
+/* argv_free(argv);
+/* DIAGNOSTICS
+/* Fatal: out of memory.
+/*
+/* In case of error, this function returns non-zero and creates
+/* an ARGV null pointer.
+/* 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 library.
+ */
+#include <sys_defs.h>
+
+ /*
+ * Utility library.
+ */
+#include <argv.h>
+#include <argv_attr.h>
+#include <attr.h>
+#include <msg.h>
+#include <vstream.h>
+#include <vstring.h>
+
+/* argv_attr_scan - write ARGV to stream */
+
+int argv_attr_scan(ATTR_PRINT_MASTER_FN scan_fn, VSTREAM *fp,
+ int flags, void *ptr)
+{
+ ARGV *argv = 0;
+ int size;
+ int ret;
+
+ if ((ret = scan_fn(fp, flags | ATTR_FLAG_MORE,
+ RECV_ATTR_INT(ARGV_ATTR_SIZE, &size),
+ ATTR_TYPE_END)) == 1) {
+ if (msg_verbose)
+ msg_info("argv_attr_scan count=%d", size);
+ if (size < 0 || size > ARGV_ATTR_MAX) {
+ msg_warn("invalid size %d from %s while reading ARGV",
+ size, VSTREAM_PATH(fp));
+ ret = -1;
+ } else if (size > 0) {
+ VSTRING *buffer = vstring_alloc(100);
+
+ argv = argv_alloc(size);
+ while (ret == 1 && size-- > 0) {
+ if ((ret = scan_fn(fp, flags | ATTR_FLAG_MORE,
+ RECV_ATTR_STR(ARGV_ATTR_VALUE, buffer),
+ ATTR_TYPE_END)) == 1)
+ argv_add(argv, vstring_str(buffer), ARGV_END);
+ }
+ argv_terminate(argv);
+ vstring_free(buffer);
+ }
+ }
+ *(ARGV **) ptr = argv;
+ if (msg_verbose)
+ msg_info("argv_attr_scan ret=%d", ret);
+ return (ret);
+}