summaryrefslogtreecommitdiffstats
path: root/qemu/roms/SLOF/clients/net-snk/app/netapps/args.c
diff options
context:
space:
mode:
authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/SLOF/clients/net-snk/app/netapps/args.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/SLOF/clients/net-snk/app/netapps/args.c')
-rw-r--r--qemu/roms/SLOF/clients/net-snk/app/netapps/args.c143
1 files changed, 143 insertions, 0 deletions
diff --git a/qemu/roms/SLOF/clients/net-snk/app/netapps/args.c b/qemu/roms/SLOF/clients/net-snk/app/netapps/args.c
new file mode 100644
index 000000000..52215e6a7
--- /dev/null
+++ b/qemu/roms/SLOF/clients/net-snk/app/netapps/args.c
@@ -0,0 +1,143 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ * IBM Corporation - initial implementation
+ *****************************************************************************/
+
+#include <stdint.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include "args.h"
+
+/**
+ * Returns pointer of the n'th argument within a string.
+ *
+ * @param arg_str string with arguments, separated with ','
+ * @param index index of the requested arguments within arg_str
+ * @return pointer of argument[index] on success
+ * NULL if index is out of range
+ */
+const char *
+get_arg_ptr(const char *arg_str, unsigned int index)
+{
+ unsigned int i;
+
+ for (i = 0; i < index; ++i) {
+ for (; *arg_str != ',' && *arg_str != 0; ++arg_str);
+ if (*arg_str == 0)
+ return 0;
+ ++arg_str;
+ }
+ return arg_str;
+}
+
+/**
+ * Returns number of arguments within a string.
+ *
+ * @param arg_str string with arguments, separated with ','
+ * @return number of arguments
+ */
+unsigned int
+get_args_count(const char *arg_str)
+{
+ unsigned int count = 1;
+
+ while ((arg_str = get_arg_ptr(arg_str, 1)) != 0)
+ ++count;
+ return count;
+}
+
+/**
+ * Returns the length of the first argument.
+ *
+ * @param arg_str string with arguments, separated with ','
+ * @return length of first argument
+ */
+unsigned int
+get_arg_length(const char *arg_str)
+{
+ unsigned int i;
+
+ for (i = 0; *arg_str != ',' && *arg_str != 0; ++i)
+ ++arg_str;
+ return i;
+}
+
+/**
+ * Copy the n'th argument within a string into a buffer in respect
+ * to a limited buffer size
+ *
+ * @param arg_str string with arguments, separated with ','
+ * @param index index of the requested arguments within arg_str
+ * @param buffer pointer to the buffer
+ * @param length size of the buffer
+ * @return pointer of buffer on success
+ * NULL if index is out of range.
+ */
+char *
+argncpy(const char *arg_str, unsigned int index, char *buffer,
+ unsigned int length)
+{
+ const char *ptr = get_arg_ptr(arg_str, index);
+ unsigned int len;
+
+ if (!ptr)
+ return 0;
+ len = get_arg_length(ptr);
+ if (!strncpy(buffer, ptr, length))
+ return 0;
+ buffer[len] = 0;
+ return buffer;
+}
+
+/**
+ * Converts "255.255.255.255" -> char[4] = { 0xff, 0xff, 0xff, 0xff }
+ *
+ * @param str string to be converted
+ * @param ip in case of SUCCESS - 32-bit long IP
+ in case of FAULT - zero
+ * @return TRUE - IP converted successfully;
+ * FALSE - error condition occurs (e.g. bad format)
+ */
+int
+strtoip(const char *str, char ip[4])
+{
+ char octet[10];
+ int res;
+ unsigned int i = 0, len;
+
+ while (*str != 0) {
+ if (i > 3 || !isdigit(*str))
+ return 0;
+ if (strstr(str, ".") != NULL) {
+ len = (int16_t) (strstr(str, ".") - str);
+ if (len >= 10)
+ return 0;
+ strncpy(octet, str, len);
+ octet[len] = 0;
+ str += len;
+ } else {
+ strncpy(octet, str, 9);
+ octet[9] = 0;
+ str += strlen(octet);
+ }
+ res = strtol(octet, NULL, 10);
+ if ((res > 255) || (res < 0))
+ return 0;
+ ip[i] = (char) res;
+ i++;
+ if (*str == '.')
+ str++;
+ }
+
+ if (i != 4)
+ return 0;
+ return -1;
+}