src/client/cmdline/cmd_put.c

   1 /* $Id$
   2  * client cmdline interface command "put" for libcaptive
   3  * Copyright (C) 2003 Jan Kratochvil <project-captive@jankratochvil.net>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; exactly version 2 of June 1991 is required
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20 #include "config.h"
  21
  22 #include <glib/gmessages.h>
  23 #include <glib/gerror.h>
  24 #include <popt.h>
  25 #include <captive/client-file.h>
  26 #include <fcntl.h>
  27 #include <errno.h>
  28 #include <unistd.h>
  29 #include <captive/macros.h>
  30 #include <stdlib.h>
  31
  32 #include "cmd_put.h"    /* self */
  33 #include "cmd_cd.h"     /* for cmdline_path_from_cwd() */
  34 #include "main.h"
  35
  36
  37 /* Config: */
  38 #define DEFAULT_TRANSFER_BUFFER_SIZE (0x10000)
  39
  40
  41 GQuark cmdline_cmd_put_error_quark(void)
  42 {
  43 GQuark r=0;
  44
  45         if (!r)
  46                 r=g_quark_from_static_string("cmdline-cmd-put");
  47
  48         return r;
  49 }
  50
  51
  52 static gchar *optarg_transfer_buffer;
  53
  54 const struct poptOption cmd_put_table[]={
  55                 CMDLINE_POPT("buffer-size",'b',POPT_ARG_STRING,&optarg_transfer_buffer,
  56                                 N_("Transfer buffer size"),N_("size")),
  57                 CMDLINE_POPT_AUTOHELP
  58                 POPT_TABLEEND
  59                 };
  60
  61
  62 void cmd_put(const char **cmd_argv,GError **errp)
  63 {
  64 CaptiveFileObject *captive_file_object;
  65 const gchar *sourcefile,*targetfile;
  66 guint perm=0644;
  67 int fdsrc;
  68 guint8 *transfer_buffer;
  69 long transfer_buffer_size=DEFAULT_TRANSFER_BUFFER_SIZE;
  70 int got;
  71
  72         g_return_if_fail(!errp || !*errp);
  73
  74         if (optarg_transfer_buffer) {
  75 const gchar *string=captive_strdup_alloca(optarg_transfer_buffer);
  76 char *endptr;
  77
  78                 free(optarg_transfer_buffer);
  79                 optarg_transfer_buffer=NULL;
  80
  81                 transfer_buffer_size=strtol(string,&endptr,0);
  82                 if (transfer_buffer_size<=0 || transfer_buffer_size>=LONG_MAX || (endptr && *endptr)) {
  83                         g_set_error(errp,CMDLINE_CMD_PUT_ERROR,CMDLINE_CMD_PUT_ERROR_PARSING_TRANSFER_BUFFER_SIZE,
  84                                         _("Error parsing transfer buffer size: %s"),string);
  85                         return;
  86                         }
  87                 }
  88
  89         sourcefile=cmd_argv[0];
  90         if (cmd_argv[1])
  91                 targetfile=cmdline_path_from_cwd(cmd_argv[1]);
  92         else {
  93 gchar *sourcefile_basename;
  94
  95                 sourcefile_basename=g_path_get_basename(sourcefile);
  96                 targetfile=cmdline_path_from_cwd(sourcefile_basename);
  97                 g_free(sourcefile_basename);
  98                 }
  99
 100         if (-1==(fdsrc=open(sourcefile,O_RDONLY
 101 #ifdef O_BINARY
 102                         | O_BINARY
 103 #endif /* O_BINARY */
 104 #ifdef O_LARGEFILE
 105                         | O_LARGEFILE
 106 #endif /* O_LARGEFILE */
 107                         ))) {
 108                 g_set_error(errp,CMDLINE_CMD_PUT_ERROR,CMDLINE_CMD_PUT_ERROR_OPENING_SOURCE_FILE,
 109                                 _("Error opening source host-os file '%s': %s"),sourcefile,g_strerror(errno));
 110                 return;
 111                 }
 112
 113         if (!errvfsresult_to_gerr(errp,captive_file_new_create(
 114                         &captive_file_object,   /* captive_file_object_return */
 115                         cmdline_captive_vfs_object,     /* captive_vfs_object */
 116                         targetfile,     /* pathname */
 117                         GNOME_VFS_OPEN_WRITE,   /* mode */
 118                         FALSE,  /* exclusive */
 119                         perm))) {       /* perm */
 120                 err_cleanup(errp);
 121                 g_set_error(errp,CMDLINE_CMD_PUT_ERROR,CMDLINE_CMD_PUT_ERROR_CANNOT_CREATE_TARGET_GUESTOS_FILE,
 122                                 _("Cannot create target guest-os file: %s"),targetfile);
 123                 goto err_close_fdsrc;
 124                 }
 125
 126         transfer_buffer=g_malloc(transfer_buffer_size);
 127         g_assert(transfer_buffer!=NULL);        /* Should not happen. */
 128
 129         while (0<(got=read(fdsrc,transfer_buffer,transfer_buffer_size))) {
 130 GnomeVFSFileSize bytes_written;
 131
 132                 if (!errvfsresult_to_gerr(errp,captive_file_write(
 133                                 captive_file_object,    /* captive_file_object */
 134                                 transfer_buffer,        /* buffer */
 135                                 got,    /* num_bytes */
 136                                 &bytes_written))) {     /* bytes_written_return */
 137                         err_cleanup(errp);
 138                         g_set_error(errp,CMDLINE_CMD_PUT_ERROR,CMDLINE_CMD_PUT_ERROR_WRITING_TARGET_GUESTOS_FILE,
 139                                         _("Error writing target guest-os file: %s"),targetfile);
 140                         goto err_free_transfer_buffer;
 141                         }
 142                 if (bytes_written!=(GnomeVFSFileSize)got) {
 143                         g_set_error(errp,CMDLINE_CMD_PUT_ERROR,CMDLINE_CMD_PUT_ERROR_WRITING_TARGET_GUESTOS_FILE,
 144                                         _("Error writing target guest-os file '%s': requested %d, written %Lu"),
 145                                         targetfile,got,(unsigned long long)bytes_written);
 146                         goto err_free_transfer_buffer;
 147                         }
 148                 }
 149         if (got==-1) {
 150                 g_set_error(errp,CMDLINE_CMD_PUT_ERROR,CMDLINE_CMD_PUT_ERROR_READING_SOURCE_FILE,
 151                                 _("Error reading source host-os file '%s': %s"),sourcefile,g_strerror(errno));
 152                 goto err_free_transfer_buffer;
 153                 }
 154         g_assert(got==0);
 155
 156 err_free_transfer_buffer:
 157         g_free(transfer_buffer);
 158 /* err_unref_captive_file_object: */
 159         g_object_unref(captive_file_object);
 160 err_close_fdsrc:
 161         if (close(fdsrc)) {
 162                 err_cleanup(errp);      /* may be clean */
 163                 g_set_error(errp,CMDLINE_CMD_PUT_ERROR,CMDLINE_CMD_PUT_ERROR_CLOSING_SOURCE_FILE,
 164                                 _("Error closing source host-os file '%s': %s"),sourcefile,g_strerror(errno));
 165                 }
 166 }