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author | 2015-08-28 09:58:54 +0800 | |
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committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/SLOF/clients/net-snk/app/netapps/args.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (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.c | 143 |
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; +} |