Add the sorted command executor code.

1 files changed, 124 insertions, 0 deletions

diff --git a/usr.sbin/sysinstall/command.c b/usr.sbin/sysinstall/command.c
new file mode 100644
index 0000000..37b3a7a
--- /dev/null
+++ b/usr.sbin/sysinstall/command.c
@@ -0,0 +1,124 @@
+/*
+ * The new sysinstall program.
+ *
+ * This is probably the last program in the `sysinstall' line - the next
+ * generation being essentially a complete rewrite.
+ *
+ * $Id: install.c,v 1.10 1995/05/07 23:37:33 jkh Exp $
+ *
+ * Copyright (c) 1995
+ *	Jordan Hubbard.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer, 
+ *    verbatim and that no modifications are made prior to this 
+ *    point in the file.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Jordan Hubbard
+ *	for the FreeBSD Project.
+ * 4. The name of Jordan Hubbard or the FreeBSD project may not be used to
+ *    endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include "sysinstall.h"
+
+#define MAX_NUM_COMMANDS	10
+
+typedef struct {
+    char key[FILENAME_MAX];
+    char *cmds[MAX_NUM_COMMANDS];
+    int ncmds;
+} Command;
+
+#define MAX_CMDS	200
+static Command *commandStack[MAX_CMDS];
+int numCommands;
+
+void
+command_clear(void)
+{
+    int i, j;
+
+    for (i = 0; i < numCommands; i++)
+	for (j = 0; j < commandStack[i]->ncmds; j++)
+	    free(commandStack[i]->cmds[j]);
+    free(commandStack[i]);
+    numCommands = 0;
+}
+
+void
+command_add(char *key, char *fmt, ...)
+{
+    va_list args;
+    char *cmd;
+    int i;
+
+    cmd = (char *)safe_malloc(1024);
+    va_start(args, fmt);
+    vsnprintf(cmd, 1024, fmt, args);
+    va_end(args);
+
+    /* First, look for the key already present and add a command to it */
+    for (i = 0; i < numCommands; i++) {
+	if (!strcmp(commandStack[i]->key, key)) {
+	    commandStack[i]->cmds[commandStack[i]->ncmds++] = cmd;
+	    if (commandStack[i]->ncmds == MAX_NUM_COMMANDS)
+		msgFatal("More than %d commands stacked up behind %s??",
+			 MAX_NUM_COMMANDS, key);
+	    return;
+	}
+    }
+    /* If we fell to here, it's a new key */
+    commandStack[numCommands] = safe_malloc(sizeof(Command));
+    strcpy(commandStack[numCommands]->key, key);
+    commandStack[numCommands]->ncmds = 1;
+    commandStack[numCommands++]->cmds[0] = cmd;
+    if (numCommands == MAX_CMDS)
+	msgFatal("More than %d commands accumulated??", MAX_CMDS);
+}
+
+static int
+sort_compare(const void *p1, const void *p2)
+{
+    return strcmp(((Command *)p1)->key, ((Command *)p2)->key);
+}
+
+void
+command_sort(void)
+{
+    qsort(commandStack, numCommands, sizeof(Command *), sort_compare);
+}
+
+void
+command_execute(void)
+{
+    int i, j;
+
+    for (i = 0; i < numCommands; i++) {
+	for (j = 0; j < commandStack[i]->ncmds; j++) {
+	    msgNotify("Executing command: %s", commandStack[i]->cmds[j]);
+	    (void)vsystem(commandStack[i]->cmds[j]);
+	}
+    }
+}