diff options
Diffstat (limited to 'archive/sg_hold.c')
| -rw-r--r-- | archive/sg_hold.c | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/archive/sg_hold.c b/archive/sg_hold.c deleted file mode 100644 index 01c73d35..00000000 --- a/archive/sg_hold.c +++ /dev/null @@ -1,144 +0,0 @@ -#include <unistd.h> -#include <fcntl.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <errno.h> -#include <sys/ioctl.h> -#include <sys/types.h> -#include <sys/stat.h> -#include "sg_linux_inc.h" - -/* This is a program that periodically executes a TEST UNIT READY - SCSI command using the SCSI generic (sg) driver. - -* Copyright (C) 2001 D. Gilbert -* This program is free software; you can redistribute it and/or modify -* it under the terms of the GNU General Public License as published by -* the Free Software Foundation; either version 2, or (at your option) -* any later version. - - Invocation: sg_hold [-t<secs>] [-d] <sg_device> - - Version 1.00 (20010312) - -6 byte TEST UNIT READY command: -[0x00][ |lu][res ][res ][res ][res ] - -*/ -#define TUR_CMD_LEN 6 - - -int main(int argc, char * argv[]) -{ - int sg_fd, k, j, res; - unsigned char turCmdBlk [TUR_CMD_LEN] = - {0x00, 0, 0, 0, 0, 0}; - sg_io_hdr_t io_hdr; - char * file_name = 0; - char ebuff[128]; - unsigned char sense_buffer[32]; - int sleep_period = 1; - int debug = 0; - size_t len; - - for (k = 1; k < argc; ++k) { - if (0 == memcmp("-t", argv[k], 2)) { - len = strlen(argv[k]); - if (len > 2) - res = sscanf(argv[k] + 2, "%d", &sleep_period); - else if (++k < argc) - res = sscanf(argv[k], "%d", &sleep_period); - else - res = 0; - if ((1 != res) || (sleep_period < 1)) { - file_name = 0; - printf("Bad '-t' argument\n"); - break; - } - } - else if (0 == memcmp("-d", argv[k], 2)) - debug = 1; - else if (*argv[k] == '-') { - printf("Unrecognized switch: %s\n", argv[k]); - file_name = 0; - break; - } - else if (0 == file_name) - file_name = argv[k]; - else { - printf("too many arguments\n"); - file_name = 0; - break; - } - } - if (0 == file_name) { - printf("Usage: 'sg_hold [-t<secs>] [-d] <sg_device>'\n"); - printf(" where: -t<secs> time in seconds between TURs " - "(default: 1 sec)\n"); - printf(" -d output message with each TUR\n"); - return 1; - } - - if ((sg_fd = open(file_name, O_RDONLY)) < 0) { - sprintf(ebuff, "sg_hold: error opening file: %s", file_name); - perror(ebuff); - return 1; - } - /* Just to be safe, check we have a new sg device by trying an ioctl */ - if ((ioctl(sg_fd, SG_GET_VERSION_NUM, &k) < 0) || (k < 30000)) { - printf("sg_hold: %s doesn't seem to be an new sg device\n", - file_name); - close(sg_fd); - return 1; - } - - for (j = 1; ; ++j) { - /* Prepare TEST UNIT READY command */ - memset(&io_hdr, 0, sizeof(sg_io_hdr_t)); - io_hdr.interface_id = 'S'; - io_hdr.cmd_len = sizeof(turCmdBlk); - io_hdr.mx_sb_len = sizeof(sense_buffer); - io_hdr.dxfer_direction = SG_DXFER_NONE; - io_hdr.cmdp = turCmdBlk; - io_hdr.sbp = sense_buffer; - io_hdr.timeout = 20000; /* 20000 millisecs == 20 seconds */ - io_hdr.pack_id = j; /* marching pack_id starting at 1 */ - - if (ioctl(sg_fd, SG_IO, &io_hdr) < 0) { - perror("sg_hold: Test Unit Ready SG_IO ioctl error"); - close(sg_fd); - return 1; - } - - /* now for the error processing */ - if ((io_hdr.info & SG_INFO_OK_MASK) != SG_INFO_OK) { - if (io_hdr.sb_len_wr > 0) { - printf("TEST UNIT READY sense data: "); - for (k = 0; k < io_hdr.sb_len_wr; ++k) { - if ((k > 0) && (0 == (k % 10))) - printf("\n "); - printf("0x%02x ", sense_buffer[k]); - } - printf("\n"); - } - else if (io_hdr.masked_status) - printf("TEST UNIT READY SCSI status=0x%x\n", io_hdr.status); - else if (io_hdr.host_status) - printf("TEST UNIT READY host_status=0x%x\n", - io_hdr.host_status); - else if (io_hdr.driver_status) - printf("TEST UNIT READY driver_status=0x%x\n", - io_hdr.driver_status); - else - printf("TEST UNIT READY unexpected error\n"); - printf("Test Unit Ready failed so unit may _not_ be ready!\n"); - } - else if (debug) - printf("Test Unit Ready successful so unit is ready!\n"); - - sleep(sleep_period); - } - close(sg_fd); - return 0; -} |