add POSIX.2 identifiers

30 files changed, 276 insertions, 0 deletions

diff --git a/src/unistd/_CS_PATH.c b/src/unistd/_CS_PATH.c
new file mode 100644
index 00000000..53187da7
--- /dev/null
+++ b/src/unistd/_CS_PATH.c
@@ -0,0 +1,10 @@
+#include <unistd.h>
+#define _CS_PATH                                                               0
+
+/*
+UNG_VALUE(/bin:/usr/bin)
+*/
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_POSIX2_CHAR_TERM.c b/src/unistd/_POSIX2_CHAR_TERM.c
new file mode 100644
index 00000000..9a7e889b
--- /dev/null
+++ b/src/unistd/_POSIX2_CHAR_TERM.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _POSIX2_CHAR_TERM /* TODO */
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_POSIX2_C_DEV.c b/src/unistd/_POSIX2_C_DEV.c
new file mode 100644
index 00000000..89578936
--- /dev/null
+++ b/src/unistd/_POSIX2_C_DEV.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _POSIX2_C_DEV /* TODO */
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_POSIX2_C_VERSION.c b/src/unistd/_POSIX2_C_VERSION.c
new file mode 100644
index 00000000..44c9a0ba
--- /dev/null
+++ b/src/unistd/_POSIX2_C_VERSION.c
@@ -0,0 +1,20 @@
+#include <unistd.h>
+
+#if (defined _POSIX_C_SOURCE)
+#if _POSIX_C_SOURCE >= 200809L
+#define _POSIX2_C_VERSION                                              (200809L)
+#elif _POSIX_C_SOURCE >= 200112L
+#define _POSIX2_C_VERSION                                              (200112L)
+#elif _POSIX_C_SOURCE >= 199506L
+#define _POSIX2_C_VERSION                                              (199506L)
+#elif _POSIX_C_SOURCE >= 2
+#define _POSIX2_C_VERSION                                              (199209L)
+#else
+#undef _POSIX2_C_VERSION
+#endif
+#endif
+
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_POSIX2_FORT_DEV.c b/src/unistd/_POSIX2_FORT_DEV.c
new file mode 100644
index 00000000..dd22e4bf
--- /dev/null
+++ b/src/unistd/_POSIX2_FORT_DEV.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _POSIX2_FORT_DEV /* TODO */
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_POSIX2_FORT_RUN.c b/src/unistd/_POSIX2_FORT_RUN.c
new file mode 100644
index 00000000..54d21036
--- /dev/null
+++ b/src/unistd/_POSIX2_FORT_RUN.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _POSIX2_FORT_RUN /* TODO */
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_POSIX2_SW_DEV.c b/src/unistd/_POSIX2_SW_DEV.c
new file mode 100644
index 00000000..ddd0f01b
--- /dev/null
+++ b/src/unistd/_POSIX2_SW_DEV.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _POSIX2_SW_DEV
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_POSIX2_UPE.c b/src/unistd/_POSIX2_UPE.c
new file mode 100644
index 00000000..a0c6299a
--- /dev/null
+++ b/src/unistd/_POSIX2_UPE.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _POSIX2_UPE /* TODO */
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_SC_2_CHAR_TERM.c b/src/unistd/_SC_2_CHAR_TERM.c
new file mode 100644
index 00000000..fa6448ca
--- /dev/null
+++ b/src/unistd/_SC_2_CHAR_TERM.c
@@ -0,0 +1,6 @@
+#includee <unistd.h>
+#define _SC_2_CHAR_TERM                                                        2
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_SC_2_C_DEV.c b/src/unistd/_SC_2_C_DEV.c
new file mode 100644
index 00000000..2b295181
--- /dev/null
+++ b/src/unistd/_SC_2_C_DEV.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _SC_2_C_DEV                                                            1
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_SC_2_FORT_DEV.c b/src/unistd/_SC_2_FORT_DEV.c
new file mode 100644
index 00000000..796a3a55
--- /dev/null
+++ b/src/unistd/_SC_2_FORT_DEV.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _SC_2_FORT_DEV                                                         3
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_SC_2_FORT_RUN.c b/src/unistd/_SC_2_FORT_RUN.c
new file mode 100644
index 00000000..6ed244f2
--- /dev/null
+++ b/src/unistd/_SC_2_FORT_RUN.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _SC_2_FORT_RUN                                                         4
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_SC_2_LOCALEDEF.c b/src/unistd/_SC_2_LOCALEDEF.c
new file mode 100644
index 00000000..5c90849a
--- /dev/null
+++ b/src/unistd/_SC_2_LOCALEDEF.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _SC_2_LOCALEDEF                                                        5
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_SC_2_SW_DEV.c b/src/unistd/_SC_2_SW_DEV.c
new file mode 100644
index 00000000..1fb22735
--- /dev/null
+++ b/src/unistd/_SC_2_SW_DEV.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _SC_2_SW_DEV                                                          12
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_SC_2_UPE.c b/src/unistd/_SC_2_UPE.c
new file mode 100644
index 00000000..325f5f6a
--- /dev/null
+++ b/src/unistd/_SC_2_UPE.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _SC_2_UPE                                                             13
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_SC_2_VERSION.c b/src/unistd/_SC_2_VERSION.c
new file mode 100644
index 00000000..9a23e011
--- /dev/null
+++ b/src/unistd/_SC_2_VERSION.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _SC_2_VERSION                                                         14
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_SC_BC_BASE_MAX.c b/src/unistd/_SC_BC_BASE_MAX.c
new file mode 100644
index 00000000..a4cc9151
--- /dev/null
+++ b/src/unistd/_SC_BC_BASE_MAX.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _SC_BC_BASE_MAX                                                       23
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_SC_BC_DIM_MAX.c b/src/unistd/_SC_BC_DIM_MAX.c
new file mode 100644
index 00000000..57b3b670
--- /dev/null
+++ b/src/unistd/_SC_BC_DIM_MAX.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _SC_BC_DIM_MAX                                                        24
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_SC_BC_SCALE_MAX.c b/src/unistd/_SC_BC_SCALE_MAX.c
new file mode 100644
index 00000000..5daab23f
--- /dev/null
+++ b/src/unistd/_SC_BC_SCALE_MAX.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _SC_BC_SCALE_MAX                                                      25
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_SC_BC_STRING_MAX.c b/src/unistd/_SC_BC_STRING_MAX.c
new file mode 100644
index 00000000..5f20b4f7
--- /dev/null
+++ b/src/unistd/_SC_BC_STRING_MAX.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _SC_BC_STRING_MAX                                                     26
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_SC_COLL_WEIGHTS_MAX.c b/src/unistd/_SC_COLL_WEIGHTS_MAX.c
new file mode 100644
index 00000000..dbe4b209
--- /dev/null
+++ b/src/unistd/_SC_COLL_WEIGHTS_MAX.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _SC_COLL_WEIGHTS_MAX                                                  30
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_SC_EXPR_NEST_MAX.c b/src/unistd/_SC_EXPR_NEST_MAX.c
new file mode 100644
index 00000000..7a6a24e5
--- /dev/null
+++ b/src/unistd/_SC_EXPR_NEST_MAX.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _SC_EXPR_NEST_MAX                                                     33
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_SC_LINE_MAX.c b/src/unistd/_SC_LINE_MAX.c
new file mode 100644
index 00000000..7fc4c837
--- /dev/null
+++ b/src/unistd/_SC_LINE_MAX.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _SC_LINE_MAX                                                          41
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/_SC_RE_DUP_MAX.c b/src/unistd/_SC_RE_DUP_MAX.c
new file mode 100644
index 00000000..4eefc22f
--- /dev/null
+++ b/src/unistd/_SC_RE_DUP_MAX.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#define _SC_RE_DUP_MAX                                                        58
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/confstr.c b/src/unistd/confstr.c
new file mode 100644
index 00000000..a0f57b30
--- /dev/null
+++ b/src/unistd/confstr.c
@@ -0,0 +1,34 @@
+#include <unistd.h>
+#include "errno.h"
+#include "string.h"
+
+size_t confstr(int name, char *buf, size_t len)
+{
+	char *value = NULL;
+
+	if (len > 0) {
+		__ASSERT_NONNULL(buf);
+	}
+
+	switch (name) {
+	#include "_confstr.h"
+	default:
+		value = NULL;
+		break;
+	}
+
+	if (value == NULL) {
+		errno = EINVAL;
+		return 0;
+	}
+
+	if (len > 0) {
+		strncpy(buf, value, len);
+	}
+
+	return strlen(value);
+}
+
+/*
+POSIX(2)
+*/
diff --git a/src/unistd/getopt.c b/src/unistd/getopt.c
new file mode 100644
index 00000000..29fe5590
--- /dev/null
+++ b/src/unistd/getopt.c
@@ -0,0 +1,56 @@
+#include "string.h"
+#include "stdio.h"
+#include <unistd.h>
+
+int getopt(int argc, char * const argv[], const char *optstring)
+{
+	static int optchar = 0;
+	char *cursor = NULL;
+
+	if (optind = 0 || argv[optind][optchar] == '\0') {
+		optind++;
+		optchar = 0;
+	}
+
+	if (!strcmp(argv[optind], "--")) {
+		optind++;
+		return -1;
+	}
+
+	if (optchar == 0 && argv[optind][optchar] != '-') {
+		return -1;
+	}
+
+	optchar++;
+
+	printf("Checking %c\n", argv[optind][optchar]);
+
+	cursor = strchr(optstring, argv[optind][optchar]);
+	if (cursor) {
+		if (cursor[1] == ':') {
+			/* An option-argument is required */
+			/* if (no arg) { */
+			/*	optopt = *cursor; */
+			/*	if (opterr) { */
+			/*		fprintf(stderr, "%s: Missing argument to -%c\n", argv[0], *cursor); */
+			/* 	} */
+			/*	return optstring[0] == ':' ? ':' : '?'; */
+			/* } */
+			/* optarg = argv[++optind]; */
+			/* optchar = 0; */
+			/* optind++; */
+		}
+		return *cursor;
+	}
+	
+	optopt = argv[optind][optchar];
+	if (opterr) {
+		fprintf(stderr, "%s: Invalid option -%c\n", *cursor);
+	}
+	return '?';
+}
+
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/optarg.c b/src/unistd/optarg.c
new file mode 100644
index 00000000..be7407c1
--- /dev/null
+++ b/src/unistd/optarg.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+char * optarg;
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/opterr.c b/src/unistd/opterr.c
new file mode 100644
index 00000000..f5e831e4
--- /dev/null
+++ b/src/unistd/opterr.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+int opterr;
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/optind.c b/src/unistd/optind.c
new file mode 100644
index 00000000..8cd6e14b
--- /dev/null
+++ b/src/unistd/optind.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+int optind;
+/*
+POSIX(2)
+*/
+
diff --git a/src/unistd/optopt.c b/src/unistd/optopt.c
new file mode 100644
index 00000000..673316d5
--- /dev/null
+++ b/src/unistd/optopt.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+int optopt = 0;
+/*
+POSIX(2)
+*/
+