OpenSolaris Launch

2 files changed, 177 insertions, 0 deletions

diff --git a/usr/src/cmd/isaexec/Makefile b/usr/src/cmd/isaexec/Makefile
new file mode 100644
index 0000000000..a09f3092c6
--- /dev/null
+++ b/usr/src/cmd/isaexec/Makefile
@@ -0,0 +1,46 @@
+#
+# CDDL HEADER START
+#
+# The contents of this file are subject to the terms of the
+# Common Development and Distribution License, Version 1.0 only
+# (the "License").  You may not use this file except in compliance
+# with the License.
+#
+# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+# or http://www.opensolaris.org/os/licensing.
+# See the License for the specific language governing permissions
+# and limitations under the License.
+#
+# When distributing Covered Code, include this CDDL HEADER in each
+# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+# If applicable, add the following below this CDDL HEADER, with the
+# fields enclosed by brackets "[]" replaced with your own identifying
+# information: Portions Copyright [yyyy] [name of copyright owner]
+#
+# CDDL HEADER END
+#
+#
+# Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+# Use is subject to license terms.
+#
+#ident	"%Z%%M%	%I%	%E% SMI"
+#
+
+PROG= isaexec
+
+include ../Makefile.cmd
+
+CFLAGS += $(CCVERBOSE)
+
+.KEEP_STATE:
+
+all: $(PROG)
+
+install: all $(ROOTLIBPROG)
+
+clean:
+
+lint:
+	$(LINT.c) $(PROG).c $(LDLIBS)
+
+include ../Makefile.targ
diff --git a/usr/src/cmd/isaexec/isaexec.c b/usr/src/cmd/isaexec/isaexec.c
new file mode 100644
index 0000000000..8dba854adc
--- /dev/null
+++ b/usr/src/cmd/isaexec/isaexec.c
@@ -0,0 +1,131 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <limits.h>
+#include <locale.h>
+#include <sys/types.h>
+#include <sys/systeminfo.h>
+
+/*ARGSUSED*/
+int
+main(int argc, char **argv, char **envp)
+{
+	const char *execname;
+	const char *fname;
+	char *isalist;
+	ssize_t isalen;
+	char *pathname;
+	ssize_t len;
+	char scratch[1];
+	char *str;
+
+#if !defined(TEXT_DOMAIN)		/* Should be defined by cc -D */
+#define	TEXT_DOMAIN	"SYS_TEST"	/* Use this only if it wasn't */
+#endif
+	(void) setlocale(LC_ALL, "");
+	(void) textdomain(TEXT_DOMAIN);
+
+	/*
+	 * Get the isa list.
+	 */
+	if ((isalen = sysinfo(SI_ISALIST, scratch, 1)) == -1 ||
+	    (isalist = malloc(isalen)) == NULL ||
+	    sysinfo(SI_ISALIST, isalist, isalen) == -1) {
+		(void) fprintf(stderr,
+		    gettext("%s: cannot find the ISA list\n"),
+		    argv[0]);
+		return (1);
+	}
+
+	/*
+	 * Get the exec name.
+	 */
+	if ((execname = getexecname()) == NULL) {
+		(void) fprintf(stderr,
+		    gettext("%s: getexecname() failed\n"),
+		    argv[0]);
+		return (1);
+	}
+
+	/*
+	 * Allocate a path name buffer.  The sum of the lengths of the
+	 * execname and isalist strings is guaranteed to be big enough.
+	 */
+	len = strlen(execname) + isalen;
+	if ((pathname = malloc(len)) == NULL) {
+		(void) fprintf(stderr,
+		    gettext("%s: malloc(%d) failed\n"),
+		    argv[0], (int)len);
+		return (1);
+	}
+
+	/*
+	 * Break the exec name into directory and file name components.
+	 */
+	(void) strcpy(pathname, execname);
+	if ((str = strrchr(pathname, '/')) != NULL) {
+		*++str = '\0';
+		fname = execname + (str - pathname);
+	} else {
+		fname = execname;
+		*pathname = '\0';
+	}
+	len = strlen(pathname);
+
+	/*
+	 * For each name in the isa list, look for an executable file
+	 * with the given file name in the corresponding subdirectory.
+	 */
+	str = strtok(isalist, " ");
+	do {
+		(void) strcpy(pathname+len, str);
+		(void) strcat(pathname+len, "/");
+		(void) strcat(pathname+len, fname);
+		if (access(pathname, X_OK) == 0) {
+			/*
+			 * File exists and is marked executable.  Attempt
+			 * to execute the file from the subdirectory,
+			 * using the user-supplied argv and envp.
+			 */
+			(void) execve(pathname, argv, envp);
+			(void) fprintf(stderr,
+			    gettext("%s: execve(\"%s\") failed\n"),
+			    argv[0], pathname);
+		}
+	} while ((str = strtok(NULL, " ")) != NULL);
+
+	(void) fprintf(stderr,
+	    gettext("%s: cannot find/execute \"%s\" in ISA subdirectories\n"),
+	    argv[0], fname);
+
+	return (1);
+}