rearrange files into include, src, lib and doc directories

git-svn-id: https://svn.bingwo.ca/repos/sg3_utils/trunk@100 6180dd3e-e324-4e3e-922d-17de1ae2f315

1 files changed, 190 insertions, 0 deletions

diff --git a/src/sg_prevent.c b/src/sg_prevent.c
new file mode 100644
index 00000000..030890a8
--- /dev/null
+++ b/src/sg_prevent.c
@@ -0,0 +1,190 @@
+/*
+ * Copyright (c) 2004-2007 Douglas Gilbert.
+ * 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.
+ * 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 <unistd.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include "sg_lib.h"
+#include "sg_cmds_basic.h"
+
+/* A utility program for the Linux OS SCSI subsystem.
+ *
+ * This program issues the SCSI PREVENT ALLOW MEDIUM REMOVAL command to the
+ * given SCSI device.
+ */
+
+static char * version_str = "1.06 20070714";
+
+#define ME "sg_prevent: "
+
+
+static struct option long_options[] = {
+        {"allow", 0, 0, 'a'},
+        {"help", 0, 0, 'h'},
+        {"prevent", 1, 0, 'p'},
+        {"verbose", 0, 0, 'v'},
+        {"version", 0, 0, 'V'},
+        {0, 0, 0, 0},
+};
+
+static void usage()
+{
+    fprintf(stderr, "Usage: "
+          "sg_prevent [--allow] [--help] [--prevent=PC] [--verbose] "
+          "[--version]\n"
+          "                  DEVICE\n"
+          "  where:\n"
+          "    --allow|-a            allow media removal\n"
+          "    --help|-h             print usage message then exit\n"
+          "    --prevent=PC|-p PC    prevent code value (def: 1 -> "
+          "prevent)\n"
+          "                            0 -> allow, 1 -> prevent\n"
+          "                            2 -> persistent allow, 3 -> "
+          "persistent prevent\n"
+          "    --verbose|-v          increase verbosity\n"
+          "    --version|-V          print version string and exit\n\n"
+          "Performs a SCSI PREVENT ALLOW MEDIUM REMOVAL command\n"
+          );
+
+}
+
+int main(int argc, char * argv[])
+{
+    int sg_fd, res, c;
+    int allow = 0;
+    int prevent = -1;
+    int verbose = 0;
+    char device_name[256];
+    int ret = 0;
+
+    memset(device_name, 0, sizeof device_name);
+    while (1) {
+        int option_index = 0;
+
+        c = getopt_long(argc, argv, "ahp:vV", long_options,
+                        &option_index);
+        if (c == -1)
+            break;
+
+        switch (c) {
+        case 'a':
+            allow = 1;
+            break;
+        case 'h':
+        case '?':
+            usage();
+            return 0;
+        case 'p':
+           prevent = sg_get_num(optarg);
+           if ((prevent < 0) || (prevent > 3)) {
+                fprintf(stderr, "bad argument to '--prevent'\n");
+                return SG_LIB_SYNTAX_ERROR;
+            }
+            break;
+        case 'v':
+            ++verbose;
+            break;
+        case 'V':
+            fprintf(stderr, ME "version: %s\n", version_str);
+            return 0;
+        default:
+            fprintf(stderr, "unrecognised option code 0x%x ??\n", c);
+            usage();
+            return SG_LIB_SYNTAX_ERROR;
+        }
+    }
+    if (optind < argc) {
+        if ('\0' == device_name[0]) {
+            strncpy(device_name, argv[optind], sizeof(device_name) - 1);
+            device_name[sizeof(device_name) - 1] = '\0';
+            ++optind;
+        }
+        if (optind < argc) {
+            for (; optind < argc; ++optind)
+                fprintf(stderr, "Unexpected extra argument: %s\n",
+                        argv[optind]);
+            usage();
+            return SG_LIB_SYNTAX_ERROR;
+        }
+    }
+    if (0 == device_name[0]) {
+        fprintf(stderr, "missing device name!\n");
+        usage();
+        return SG_LIB_SYNTAX_ERROR;
+    }
+    if (allow && (prevent >= 0)) {
+        fprintf(stderr, "can't give both '--allow' and '--prevent='\n");
+        usage();
+        return SG_LIB_SYNTAX_ERROR;
+    }
+    if (allow)
+        prevent = 0;
+    else if (prevent < 0)
+        prevent = 1;    /* default is to prevent, as utility name suggests */
+
+    sg_fd = sg_cmds_open_device(device_name, 0 /* rw */, verbose);
+    if (sg_fd < 0) {
+        fprintf(stderr, ME "open error: %s: %s\n", device_name,
+                safe_strerror(-sg_fd));
+        return SG_LIB_FILE_ERROR;
+    }
+    res = sg_ll_prevent_allow(sg_fd, prevent, 1, verbose);
+    ret = res;
+    if (0 == res)
+        ;
+    else if (SG_LIB_CAT_NOT_READY == res)
+        fprintf(stderr, "Device not ready\n");
+    else if (SG_LIB_CAT_UNIT_ATTENTION == res)
+        fprintf(stderr, "Unit attention\n");
+    else if (SG_LIB_CAT_ABORTED_COMMAND == res)
+        fprintf(stderr, "Aborted command\n");
+    else if (SG_LIB_CAT_INVALID_OP == res)
+        fprintf(stderr, "Prevent allow medium removal command not "
+                "supported\n");
+    else if (SG_LIB_CAT_ILLEGAL_REQ == res)
+        fprintf(stderr, "Prevent allow medium removal, bad field in "
+                "command\n");
+    else
+        fprintf(stderr, "Prevent allow medium removal command failed\n");
+
+    res = sg_cmds_close_device(sg_fd);
+    if (res < 0) {
+        fprintf(stderr, "close error: %s\n", safe_strerror(-res));
+        if (0 == ret)
+            return SG_LIB_FILE_ERROR;
+    }
+    return (ret >= 0) ? ret : SG_LIB_CAT_OTHER;
+}