Implemented the "mount" command.

Added a missing newline at the end of alert.cpp.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@432 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/bin/Jamfile

@@ -17,6 +17,7 @@ StdBinCommands
 	listimage.c
 	listport.c
 	listsem.c
+	mount.c
 	prio.c
 	ps.c
 	renice.c

src/apps/bin/alert.cpp

@@ -225,4 +225,4 @@ int main( int argc, char ** argv )
 	}
 
 	return errorlevel;
-}
+}

src/apps/bin/mount.c

@@ -0,0 +1,91 @@
+/*
+**	Copyright (c) 2001-2002, OpenBeOS
+**
+**	This software is part of the OpenBeOS distribution and is covered 
+**	by the OpenBeOS license.
+**
+**	File:        mount.c
+**	Author:      Axel Dörfler (axeld@users.sf.net)
+**	Description: mounts a volume with the specified file system
+*/
+
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+
+void
+usage(const char *programName)
+{
+	
+	printf("usage: %s [-ro] [-t fstype] device directory\n"
+		"\t-ro\tmounts the volume read-only\n"
+		"\t-t\tspecifies the file system to use (defaults to \"bfs\")\n",programName);
+	exit(0);
+}
+
+
+int
+main(int argc, char **argv)
+{
+	const char *programName = argv[0];
+	const char *device, *mountPoint;
+	const char *parameter = NULL;
+	const char *fs = NULL;
+	struct stat mountStat;
+	int flags = 0;
+
+	/* prettify the program name */
+
+	if (strrchr(programName, '/'))
+		programName = strrchr(programName, '/') + 1;
+
+	/* get all options */
+
+	while (*++argv) {
+		char *arg = *argv;
+		if (*arg != '-')
+			break;
+
+		if (!strcmp(++arg, "ro") && (flags & B_MOUNT_READ_ONLY) == 0)
+			flags |= B_MOUNT_READ_ONLY;
+		else if (!strcmp(arg, "t") && fs == NULL)
+			fs = *++argv;
+		else if (!strcmp(arg, "p") && parameter == NULL)
+			parameter = *++argv;
+		else
+			usage(programName);
+	}
+
+	/* check the arguments */
+
+	if (fs == NULL)
+		fs = "bfs";
+
+	device = argv[0];
+	mountPoint = argv[1];
+
+	if (device == NULL || mountPoint == NULL)
+		usage(programName);
+
+	if (stat(mountPoint, &mountStat) < 0) {
+		fprintf(stderr, "%s: The mount point '%s' is not accessible\n", programName, mountPoint);
+		return -1;
+	}
+	if (!S_ISDIR(mountStat.st_mode)) {
+		fprintf(stderr, "%s: The mount point '%s' is not a directory\n", programName, mountPoint);
+		return -1;
+	}
+
+	/* do the work */
+
+	if (mount(fs, mountPoint, device, flags, (void *)parameter, parameter ? strlen(parameter) : 0) < 0) {
+		fprintf(stderr, "%s: %s\n", programName, strerror(errno));
+		return -1;
+	}
+	return 0;
+}
+