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From: Pallavi Kadam <pallavi.kadam@intel.com>
To: dev@dpdk.org,
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Cc: Harini.Ramakrishnan@microsoft.com, ranjit.menon@intel.com,
keith.wiles@intel.com, bruce.richardson@intel.com,
antara.ganesh.kolar@intel.com, pallavi.kadam@intel.com
Date: Fri, 6 Sep 2019 15:09:54 -0700
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Subject: [dpdk-dev] [PATCH 6/9] eal: getopt implementation for windows
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Adding getopt_long.c and getopt.c files to support parsing
option on Windows.
The original contribution is under MIT license.
Signed-off-by: Antara Ganesh Kolar <antara.ganesh.kolar@intel.com>
Signed-off-by: Pallavi Kadam <pallavi.kadam@intel.com>
Reviewed-by: Ranjit Menon <ranjit.menon@intel.com>
Reviewed-by: Keith Wiles <keith.wiles@intel.com>
---
lib/librte_eal/windows/eal/getopt.c | 132 +++++++++++++++
lib/librte_eal/windows/eal/getopt_long.c | 196 +++++++++++++++++++++++
lib/librte_eal/windows/eal/meson.build | 2 +
3 files changed, 330 insertions(+)
create mode 100644 lib/librte_eal/windows/eal/getopt.c
create mode 100644 lib/librte_eal/windows/eal/getopt_long.c
diff --git a/lib/librte_eal/windows/eal/getopt.c b/lib/librte_eal/windows/eal/getopt.c
new file mode 100644
index 000000000..6c619107b
--- /dev/null
+++ b/lib/librte_eal/windows/eal/getopt.c
@@ -0,0 +1,132 @@
+/* musl as a whole is licensed under the following standard MIT license:
+ *
+ * ----------------------------------------------------------------------
+ * Copyright � 2005-2014 Rich Felker, et al.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <unistd.h>
+#include <wchar.h>
+#include <string.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+char *optarg;
+int optind = 1, opterr = 1, optopt, __optpos, __optreset = 0;
+
+#define optpos __optpos
+
+void
+__getopt_msg(const char *a, const char *b, const char *c, size_t l)
+{
+ FILE *f = stderr;
+ fputs(a, f) >= 0
+ && fwrite(b, strlen(b), 1, f)
+ && fwrite(c, 1, l, f) == l
+ && putc('\n', f);
+}
+
+int
+getopt(int argc, char * const argv[], const char *optstring)
+{
+ int i;
+ wchar_t c, d;
+ int k, l;
+ char *optchar;
+
+ if (!optind || __optreset) {
+ __optreset = 0;
+ __optpos = 0;
+ optind = 1;
+ }
+
+ if (optind >= argc || !argv[optind])
+ return -1;
+
+ if (argv[optind][0] != '-') {
+ if (optstring[0] == '-') {
+ optarg = argv[optind++];
+ return 1;
+ }
+ return -1;
+ }
+
+ if (!argv[optind][1])
+ return -1;
+
+ if (argv[optind][1] == '-' && !argv[optind][2])
+ return optind++, -1;
+
+ if (!optpos)
+ optpos++;
+ k = mbtowc(&c, argv[optind] + optpos, MB_LEN_MAX);
+ if (k < 0) {
+ k = 1;
+ c = 0xfffd; /* replacement char */
+ }
+ optchar = argv[optind]+optpos;
+ optpos += k;
+
+ if (!argv[optind][optpos]) {
+ optind++;
+ optpos = 0;
+ }
+
+ if (optstring[0] == '-' || optstring[0] == '+')
+ optstring++;
+
+ i = 0;
+ d = 0;
+ do {
+ l = mbtowc(&d, optstring+i, MB_LEN_MAX);
+ if (l > 0)
+ i += l;
+ else
+ i++;
+ } while (l && d != c);
+
+ if (d != c || c == ':') {
+ optopt = c;
+ if (optstring[0] != ':' && opterr)
+ __getopt_msg(argv[0], ": unrecognized option: ",
+ optchar, k);
+ return '?';
+ }
+ if (optstring[i] == ':') {
+ optarg = 0;
+ if (optstring[i+1] != ':' || optpos) {
+ optarg = argv[optind++] + optpos;
+ optpos = 0;
+ }
+ if (optind > argc) {
+ optopt = c;
+ if (optstring[0] == ':')
+ return ':';
+ if (opterr)
+ __getopt_msg(argv[0],
+ ": option requires an argument: ",
+ optchar, k);
+ return '?';
+ }
+ }
+ return c;
+}
diff --git a/lib/librte_eal/windows/eal/getopt_long.c b/lib/librte_eal/windows/eal/getopt_long.c
new file mode 100644
index 000000000..3877acbe9
--- /dev/null
+++ b/lib/librte_eal/windows/eal/getopt_long.c
@@ -0,0 +1,196 @@
+/* musl as a whole is licensed under the following standard MIT license:
+ *
+ * ----------------------------------------------------------------------
+ * Copyright � 2005-2014 Rich Felker, et al.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <string.h>
+
+extern int __optpos, __optreset;
+
+static void
+permute(char **argv, int dest, int src)
+{
+ char **av = (char **)argv;
+ char *tmp = av[src];
+ int i;
+ for (i = src; i > dest; i--)
+ av[i] = av[i-1];
+ av[dest] = tmp;
+}
+
+static int __getopt_long_core(int argc, char **argv,
+ const char *optstring, const struct option *longopts,
+ int *idx, int longonly);
+
+static int
+__getopt_long(int argc, char **argv, const char *optstring,
+ const struct option *longopts, int *idx, int longonly)
+{
+ int ret, skipped, resumed;
+ if (!optind || __optreset) {
+ __optreset = 0;
+ __optpos = 0;
+ optind = 1;
+ }
+ if (optind >= argc || !argv[optind])
+ return -1;
+ skipped = optind;
+ if (optstring[0] != '+' && optstring[0] != '-') {
+ int i;
+ for (i = optind; ; i++) {
+ if (i >= argc || !argv[i])
+ return -1;
+ if (argv[i][0] == '-' && argv[i][1])
+ break;
+ }
+ optind = i;
+ }
+ resumed = optind;
+ ret = __getopt_long_core(argc, argv, optstring, longopts,
+ idx, longonly);
+ if (resumed > skipped) {
+ int i, cnt = optind-resumed;
+ for (i = 0; i < cnt; i++)
+ permute(argv, skipped, optind-1);
+ optind = skipped + cnt;
+ }
+ return ret;
+}
+
+static int
+__getopt_long_core(int argc, char **argv, const char *optstring,
+ const struct option *longopts, int *idx, int longonly)
+{
+ optarg = 0;
+ if (longopts && argv[optind][0] == '-' &&
+ ((longonly && argv[optind][1] && argv[optind][1] != '-') ||
+ (argv[optind][1] == '-' && argv[optind][2]))) {
+
+ int colon = optstring[optstring[0] == '+' || optstring[0] ==
+ '-'] == ':';
+ int i, cnt, match;
+ char *arg, *opt, *start = argv[optind]+1;
+ for (cnt = i = 0; longopts[i].name; i++) {
+ const char *name = longopts[i].name;
+ opt = start;
+ if (*opt == '-')
+ opt++;
+ while (*opt && *opt != '=' && *opt == *name)
+ name++, opt++;
+ if (*opt && *opt != '=')
+ continue;
+ arg = opt;
+ match = i;
+ if (!*name) {
+ cnt = 1;
+ break;
+ }
+ cnt++;
+ }
+ if (cnt == 1 && longonly && arg-start ==
+ mblen(start, MB_LEN_MAX)) {
+ int l = arg - start;
+ for (i = 0; optstring[i]; i++) {
+ int j;
+ for (j = 0; j < l && start[j] ==
+ optstring[i + j]; j++)
+ ;
+ if (j == l) {
+ cnt++;
+ break;
+ }
+ }
+ }
+ if (cnt == 1) {
+ i = match;
+ opt = arg;
+ optind++;
+ if (*opt == '=') {
+ if (!longopts[i].has_arg) {
+ optopt = longopts[i].val;
+ if (colon || !opterr)
+ return '?';
+ __getopt_msg(argv[0],
+ ": option does not take an argument: ",
+ longopts[i].name,
+ strlen(longopts[i].name));
+ return '?';
+ }
+ optarg = opt+1;
+ } else if (longopts[i].has_arg == required_argument) {
+ optarg = argv[optind];
+ if (!optarg) {
+ optopt = longopts[i].val;
+ if (colon)
+ return ':';
+ if (!opterr)
+ return '?';
+ __getopt_msg(argv[0],
+ ": option requires an argument: ",
+ longopts[i].name,
+ strlen(longopts[i].name));
+ return '?';
+ }
+ optind++;
+ }
+ if (idx)
+ *idx = i;
+ if (longopts[i].flag) {
+ *longopts[i].flag = longopts[i].val;
+ return 0;
+ }
+ return longopts[i].val;
+ }
+ if (argv[optind][1] == '-') {
+ optopt = 0;
+ if (!colon && opterr)
+ __getopt_msg(argv[0], cnt ?
+ ": option is ambiguous: " :
+ ": unrecognized option: ",
+ argv[optind]+2,
+ strlen(argv[optind]+2));
+ optind++;
+ return '?';
+ }
+ }
+ return getopt(argc, argv, optstring);
+}
+
+int
+getopt_long(int argc, char **argv, const char *optstring,
+ const struct option *longopts, int *idx)
+{
+ return __getopt_long(argc, argv, optstring, longopts, idx, 0);
+}
+
+int
+getopt_long_only(int argc, char **argv, const char *optstring,
+ const struct option *longopts, int *idx)
+{
+ return __getopt_long(argc, argv, optstring, longopts, idx, 1);
+}
diff --git a/lib/librte_eal/windows/eal/meson.build b/lib/librte_eal/windows/eal/meson.build
index af4f70f00..aa29e2e97 100644
--- a/lib/librte_eal/windows/eal/meson.build
+++ b/lib/librte_eal/windows/eal/meson.build
@@ -17,4 +17,6 @@ env_sources = files('eal.c',
'eal_debug.c',
'eal_lcore.c',
'eal_thread.c',
+ 'getopt.c',
+ 'getopt_long.c'
)
--
2.18.0.windows.1