Merge changes I46586cba,I6c500ab5,I2f7d9934

* changes:
  Add mknod utility to system/core/toolbox
  Getevent: make sure the monotonic timestamp is displayed; warning cleanup.
  toolbox: Add nohup command

toolbox/Android.mk

@@ -33,12 +33,14 @@ TOOLS := \
 	lsof \
 	md5 \
 	mkdir \
+	mknod \
 	mkswap \
 	mount \
 	mv \
 	nandread \
 	netstat \
 	newfs_msdos \
+	nohup \
 	notify \
 	printenv \
 	ps \

toolbox/getevent.c

@@ -295,6 +295,7 @@ static int open_device(const char *device, int print_flags)
 {
     int version;
     int fd;
+    int clkid = CLOCK_MONOTONIC;
     struct pollfd *new_ufds;
     char **new_device_names;
     char name[80];
@@ -335,6 +336,11 @@ static int open_device(const char *device, int print_flags)
         idstr[0] = '\0';
     }
 
+    if (ioctl(fd, EVIOCSCLOCKID, &clkid) != 0) {
+        fprintf(stderr, "Can't enable monotonic clock reporting: %s\n", strerror(errno));
+        // a non-fatal error
+    }
+
     new_ufds = realloc(ufds, sizeof(ufds[0]) * (nfds + 1));
     if(new_ufds == NULL) {
         fprintf(stderr, "out of memory\n");
@@ -470,9 +476,9 @@ static int scan_dir(const char *dirname, int print_flags)
     return 0;
 }
 
-static void usage(int argc, char *argv[])
+static void usage(char *name)
 {
-    fprintf(stderr, "Usage: %s [-t] [-n] [-s switchmask] [-S] [-v [mask]] [-d] [-p] [-i] [-l] [-q] [-c count] [-r] [device]\n", argv[0]);
+    fprintf(stderr, "Usage: %s [-t] [-n] [-s switchmask] [-S] [-v [mask]] [-d] [-p] [-i] [-l] [-q] [-c count] [-r] [device]\n", name);
     fprintf(stderr, "    -t: show time stamps\n");
     fprintf(stderr, "    -n: don't print newlines\n");
     fprintf(stderr, "    -s: print switch states for given bits\n");
@@ -568,7 +574,7 @@ int getevent_main(int argc, char *argv[])
             fprintf(stderr, "%s: invalid option -%c\n",
                 argv[0], optopt);
         case 'h':
-            usage(argc, argv);
+            usage(argv[0]);
             exit(1);
         }
     } while (1);
@@ -580,7 +586,7 @@ int getevent_main(int argc, char *argv[])
         optind++;
     }
     if (optind != argc) {
-        usage(argc, argv);
+        usage(argv[0]);
         exit(1);
     }
     nfds = 1;

toolbox/mknod.c

@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2014, The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * 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.
+ *  * Neither the name of Google, Inc. nor the names of its contributors
+ *    may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS 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, 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 <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+static int print_usage() {
+    fprintf(stderr, "mknod <path> [b|c|u|p] <major> <minor>\n");
+    return EXIT_FAILURE;
+}
+
+int mknod_main(int argc, char **argv) {
+    char *path = NULL;
+    int major = 0;
+    int minor = 0;
+    int args = 0;
+    mode_t mode = 0660;
+
+    /* Check correct argument count is 3 or 5 */
+    if (argc != 3 && argc != 5) {
+        fprintf(stderr, "Incorrect argument count\n");
+        return print_usage();
+    }
+
+    path = argv[1];
+
+    const char node_type = *argv[2];
+    switch (node_type) {
+    case 'b':
+        mode |= S_IFBLK;
+        args = 5;
+        break;
+    case 'c':
+    case 'u':
+        mode |= S_IFCHR;
+        args = 5;
+        break;
+    case 'p':
+        mode |= S_IFIFO;
+        args = 3;
+        break;
+    default:
+        fprintf(stderr, "Invalid node type '%c'\n", node_type);
+        return print_usage();
+    }
+
+    if (argc != args) {
+        if (args == 5) {
+            fprintf(stderr, "Node type '%c' requires <major> and <minor>\n", node_type);
+        } else {
+            fprintf(stderr, "Node type '%c' does not require <major> and <minor>\n", node_type);
+        }
+        return print_usage();
+    }
+
+    if (args == 5) {
+        major = atoi(argv[3]);
+        minor = atoi(argv[4]);
+    }
+
+    if (mknod(path, mode, makedev(major, minor))) {
+        perror("Unable to create node");
+        return EXIT_FAILURE;
+    }
+    return 0;
+}

toolbox/nohup.c

@@ -0,0 +1,26 @@
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+int nohup_main(int argc, char *argv[])
+{
+    if (argc < 2) {
+        fprintf(stderr, "Usage: %s [-n] program args...\n", argv[0]);
+        return EXIT_FAILURE;
+    }
+    signal(SIGHUP, SIG_IGN);
+    argv++;
+    if (strcmp(argv[0], "-n") == 0) {
+        argv++;
+        signal(SIGINT, SIG_IGN);
+        signal(SIGSTOP, SIG_IGN);
+        signal(SIGTTIN, SIG_IGN);
+        signal(SIGTTOU, SIG_IGN);
+        signal(SIGQUIT, SIG_IGN);
+        signal(SIGTERM, SIG_IGN);
+    }
+    execvp(argv[0], argv);
+    perror(argv[0]);
+    return EXIT_FAILURE;
+}