created free-standing project skeleton.

2 files changed, 283 insertions, 0 deletions

diff --git a/src/driver/ptyc_amain.c b/src/driver/ptyc_amain.c
new file mode 100644
index 0000000..4762d3a
--- /dev/null
+++ b/src/driver/ptyc_amain.c
@@ -0,0 +1,74 @@
+/*********************************************************/
+/*  ptycon: a pty-console bridge                         */
+/*  Copyright (C) 2016  Z. Gilboa                        */
+/*  Released under GPLv2 and GPLv3; see COPYING.PTYCON.  */
+/*********************************************************/
+
+#include <ntapi/ntapi.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <ptycon/ptycon.h>
+#include "ptycon_init_impl.h"
+#include "ptycon_driver_impl.h"
+#include "ptycon_nolibc_impl.h"
+
+#ifndef PTYC_DRIVER_FLAGS
+#define PTYC_DRIVER_FLAGS	PTYC_DRIVER_VERBOSITY_ERRORS \
+				| PTYC_DRIVER_VERBOSITY_USAGE
+#endif
+
+static const char vermsg[] = "%s%s%s (git://midipix.org/ptycon): "
+			     "version %s%d.%d.%d%s.\n"
+			     "[commit reference: %s%s%s]\n";
+
+static const char * const ptyc_ver_color[6] = {
+		"\x1b[1m\x1b[35m","\x1b[0m",
+		"\x1b[1m\x1b[32m","\x1b[0m",
+		"\x1b[1m\x1b[34m","\x1b[0m"
+};
+
+static const char * const ptyc_ver_plain[6] = {
+		"","",
+		"","",
+		"",""
+};
+
+static ssize_t ptyc_version(struct ptyc_driver_ctx * dctx)
+{
+	const struct ptyc_source_version * verinfo;
+	const char * const * verclr;
+
+	verinfo = ptyc_source_version();
+	verclr  = isatty(STDOUT_FILENO) ? ptyc_ver_color : ptyc_ver_plain;
+
+	return fprintf(stdout,vermsg,
+			verclr[0],dctx->program,verclr[1],
+			verclr[2],verinfo->major,verinfo->minor,
+			verinfo->revision,verclr[3],
+			verclr[4],verinfo->commit,verclr[5]);
+}
+
+static int ptyc_exit(struct ptyc_driver_ctx * dctx, int nerrors)
+{
+	ptyc_free_driver_ctx(dctx);
+	return nerrors ? 2 : 0;
+}
+
+int ptyc_main(int argc, char ** argv, char ** envp)
+{
+	int				ret;
+	struct ptyc_driver_ctx *	dctx;
+
+	if ((ret = ptyc_init()))
+		return ret;
+
+	if ((ret = ptyc_get_driver_ctx(argv,envp,PTYC_DRIVER_FLAGS,&dctx)))
+		return (ret == PTYC_USAGE) ? !--argc : 2;
+
+	if (dctx->cctx->drvflags & PTYC_DRIVER_VERSION)
+		if ((ptyc_version(dctx)) < 0)
+			return ptyc_exit(dctx,2);
+
+	return ptyc_exit(dctx,ret);
+}
diff --git a/src/driver/ptyc_driver_ctx.c b/src/driver/ptyc_driver_ctx.c
new file mode 100644
index 0000000..cc50e36
--- /dev/null
+++ b/src/driver/ptyc_driver_ctx.c
@@ -0,0 +1,209 @@
+/*********************************************************/
+/*  ptycon: a pty-console bridge                         */
+/*  Copyright (C) 2016  Z. Gilboa                        */
+/*  Released under GPLv2 and GPLv3; see COPYING.PTYCON.  */
+/*********************************************************/
+
+#include <ntapi/ntapi.h>
+#include <stdint.h>
+
+#include <ptycon/ptycon.h>
+#include "ptycon_init_impl.h"
+#include "ptycon_nolibc_impl.h"
+
+#define ARGV_DRIVER
+
+#include "ptycon_version.h"
+#include "ptycon_driver_impl.h"
+#include "argv/argv.h"
+
+/* ntapi accessor table */
+const ntapi_vtbl * ptyc_ntapi;
+
+/* package info */
+static const struct ptyc_source_version ptyc_src_version = {
+	PTYC_TAG_VER_MAJOR,
+	PTYC_TAG_VER_MINOR,
+	PTYC_TAG_VER_PATCH,
+	PTYCON_GIT_VERSION
+};
+
+struct ptyc_driver_ctx_alloc {
+	struct argv_meta *		meta;
+	struct ptyc_driver_ctx_impl	ctx;
+	uint64_t			guard;
+	const char *			units[];
+};
+
+static uint32_t ptyc_argv_flags(uint32_t flags)
+{
+	uint32_t ret = 0;
+
+	if (flags & PTYC_DRIVER_VERBOSITY_NONE)
+		ret |= ARGV_VERBOSITY_NONE;
+
+	if (flags & PTYC_DRIVER_VERBOSITY_ERRORS)
+		ret |= ARGV_VERBOSITY_ERRORS;
+
+	if (flags & PTYC_DRIVER_VERBOSITY_STATUS)
+		ret |= ARGV_VERBOSITY_STATUS;
+
+	return ret;
+}
+
+static int ptyc_driver_usage(
+	const char *			program,
+	const char *			arg,
+	const struct argv_option *	options,
+	struct argv_meta *		meta)
+{
+	char header[512];
+
+	snprintf(header,sizeof(header),
+		"Usage: %s [options] <file>...\n" "Options:\n",
+		program);
+
+	argv_usage(stdout,header,options,arg);
+	argv_free(meta);
+
+	return PTYC_USAGE;
+}
+
+static struct ptyc_driver_ctx_impl * ptyc_driver_ctx_alloc(
+	struct argv_meta *		meta,
+	const struct ptyc_common_ctx *	cctx,
+	size_t				nunits)
+{
+	struct ptyc_driver_ctx_alloc *	ictx;
+	size_t				size;
+	struct argv_entry *		entry;
+	const char **			units;
+
+	size =  sizeof(struct ptyc_driver_ctx_alloc);
+	size += (nunits+1)*sizeof(const char *);
+
+	if (!(ictx = calloc(1,size)))
+		return 0;
+
+	if (cctx)
+		memcpy(&ictx->ctx.cctx,cctx,sizeof(*cctx));
+
+	for (entry=meta->entries,units=ictx->units; entry->fopt || entry->arg; entry++)
+		if (!entry->fopt)
+			*units++ = entry->arg;
+
+	ictx->meta = meta;
+	ictx->ctx.ctx.units = ictx->units;
+	return &ictx->ctx;
+}
+
+static int ptyc_get_driver_ctx_fail(struct argv_meta * meta)
+{
+	argv_free(meta);
+	return -1;
+}
+
+int ptyc_get_driver_ctx(
+	char **				argv,
+	char **				envp,
+	uint32_t			flags,
+	struct ptyc_driver_ctx **	pctx)
+{
+	struct ptyc_driver_ctx_impl *	ctx;
+	struct ptyc_common_ctx		cctx;
+	const struct argv_option *	options;
+	struct argv_meta *		meta;
+	struct argv_entry *		entry;
+	size_t				nunits;
+	const char *			program;
+
+	(void)envp;
+
+	if (ptyc_init())
+		return -1;
+
+	options = ptyc_default_options;
+
+	if (!(meta = argv_get(argv,options,ptyc_argv_flags(flags))))
+		return -1;
+
+	nunits	= 0;
+	program = argv_program_name(argv[0]);
+	memset(&cctx,0,sizeof(cctx));
+	cctx.drvflags = flags;
+
+	if (!argv[1] && (flags & PTYC_DRIVER_VERBOSITY_USAGE))
+		return ptyc_driver_usage(program,0,options,meta);
+
+	/* get options, count units */
+	for (entry=meta->entries; entry->fopt || entry->arg; entry++) {
+		if (entry->fopt) {
+			switch (entry->tag) {
+				case TAG_HELP:
+					if (flags & PTYC_DRIVER_VERBOSITY_USAGE)
+						return ptyc_driver_usage(program,entry->arg,options,meta);
+
+				case TAG_VERSION:
+					cctx.drvflags |= PTYC_DRIVER_VERSION;
+					break;
+			}
+		} else
+			nunits++;
+	}
+
+	if (!(ctx = ptyc_driver_ctx_alloc(meta,&cctx,nunits)))
+		return ptyc_get_driver_ctx_fail(meta);
+
+	ctx->ctx.program	= program;
+	ctx->ctx.cctx		= &ctx->cctx;
+
+	*pctx = &ctx->ctx;
+	return PTYC_OK;
+}
+
+int ptyc_create_driver_ctx(
+	const struct ptyc_common_ctx *	cctx,
+	struct ptyc_driver_ctx **	pctx)
+{
+	struct argv_meta *		meta;
+	struct ptyc_driver_ctx_impl *	ctx;
+	char *				argv[] = {"ptycon_driver",0};
+
+	if (ptyc_init())
+		return -1;
+
+	if (!(meta = argv_get(argv,ptyc_default_options,0)))
+		return -1;
+
+	if (!(ctx = ptyc_driver_ctx_alloc(meta,cctx,0)))
+		return ptyc_get_driver_ctx_fail(0);
+
+	ctx->ctx.cctx = &ctx->cctx;
+	memcpy(&ctx->cctx,cctx,sizeof(*cctx));
+	*pctx = &ctx->ctx;
+	return PTYC_OK;
+}
+
+static void ptyc_free_driver_ctx_impl(struct ptyc_driver_ctx_alloc * ictx)
+{
+	argv_free(ictx->meta);
+	free(ictx);
+}
+
+void ptyc_free_driver_ctx(struct ptyc_driver_ctx * ctx)
+{
+	struct ptyc_driver_ctx_alloc *	ictx;
+	uintptr_t			addr;
+
+	if (ctx) {
+		addr = (uintptr_t)ctx - offsetof(struct ptyc_driver_ctx_alloc,ctx);
+		addr = addr - offsetof(struct ptyc_driver_ctx_impl,ctx);
+		ictx = (struct ptyc_driver_ctx_alloc *)addr;
+		ptyc_free_driver_ctx_impl(ictx);
+	}
+}
+
+const struct ptyc_source_version * ptyc_source_version(void)
+{
+	return &ptyc_src_version;
+}