2 * client cmdline interface command "get" for libcaptive
3 * Copyright (C) 2003 Jan Kratochvil <project-captive@jankratochvil.net>
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
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.
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
22 #include <glib/gmessages.h>
23 #include <glib/gerror.h>
25 #include <captive/client-file.h>
29 #include <captive/macros.h>
32 #include "cmd_get.h" /* self */
33 #include "cmd_cd.h" /* for cmdline_path_from_cwd() */
39 #define DEFAULT_TRANSFER_BUFFER_SIZE (0x10000)
42 GQuark cmdline_cmd_get_error_quark(void)
47 r=g_quark_from_static_string("cmdline-cmd-get");
53 static gchar *optarg_transfer_buffer;
55 const struct poptOption cmd_get_table[]={
56 CMDLINE_POPT("buffer-size",'b',POPT_ARG_STRING,&optarg_transfer_buffer,
57 N_("Transfer buffer size"),N_("size")),
63 void cmd_get(const char **cmd_argv,GError **errp)
65 CaptiveFileObject *captive_file_object;
66 const gchar *sourcefile,*targetfile;
69 guint8 *transfer_buffer;
70 long transfer_buffer_size=DEFAULT_TRANSFER_BUFFER_SIZE;
72 g_return_if_fail(!errp || !*errp);
74 if (optarg_transfer_buffer) {
75 const gchar *string=captive_strdup_alloca(optarg_transfer_buffer);
78 free(optarg_transfer_buffer);
79 optarg_transfer_buffer=NULL;
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_GET_ERROR,CMDLINE_CMD_GET_ERROR_PARSING_TRANSFER_BUFFER_SIZE,
84 _("Error parsing transfer buffer size: %s"),CMD_LOCALE_FROM_UTF8_ALLOCA(string));
89 sourcefile=cmdline_path_from_cwd(cmd_argv[0]);
91 targetfile=captive_strdup_alloca(cmdline_path_from_cwd(cmd_argv[1]));
95 targetfile=captive_strdup_alloca(sourcefile);
96 if ((s=strrchr(targetfile,G_DIR_SEPARATOR)))
100 if (-1==(fdtgt=open(CMD_FILENAME_FROM_UTF8_ALLOCA(targetfile),
101 O_CREAT|O_EXCL|O_WRONLY /* flags */
104 #endif /* O_BINARY */
107 #endif /* O_LARGEFILE */
110 g_set_error(errp,CMDLINE_CMD_GET_ERROR,CMDLINE_CMD_GET_ERROR_CANNOT_CREATE_TARGET_HOSTOS_FILE,
111 _("Cannot create target host-os file '%s': %s"),CMD_LOCALE_FROM_UTF8_ALLOCA(targetfile),g_strerror(errno));
115 if (!errvfsresult_to_gerr(errp,captive_file_new_open(
116 &captive_file_object, /* captive_file_object_return */
117 cmdline_captive_vfs_object, /* captive_vfs_object */
118 sourcefile, /* pathname */
119 GNOME_VFS_OPEN_READ))) { /* mode */
121 g_set_error(errp,CMDLINE_CMD_GET_ERROR,CMDLINE_CMD_GET_ERROR_OPENING_SOURCE_FILE,
122 _("Error opening source guest-os file: %s"),CMD_LOCALE_FROM_UTF8_ALLOCA(sourcefile));
123 goto err_close_fdtgt;
126 transfer_buffer=g_malloc(transfer_buffer_size);
127 g_assert(transfer_buffer!=NULL); /* Should not happen. */
130 GnomeVFSFileSize bytes_read;
131 GnomeVFSResult errvfsresult;
134 errvfsresult=captive_file_read(
135 captive_file_object, /* captive_file_object */
136 transfer_buffer, /* buffer */
137 transfer_buffer_size, /* num_bytes */
138 &bytes_read); /* bytes_read_return */
139 g_assert(errvfsresult==GNOME_VFS_OK || errvfsresult==GNOME_VFS_ERROR_EOF);
140 g_assert((errvfsresult==GNOME_VFS_ERROR_EOF)==(bytes_read==0));
141 if (errvfsresult==GNOME_VFS_ERROR_EOF)
143 if (errvfsresult!=GNOME_VFS_OK) {
146 errbool=errvfsresult_to_gerr(errp,errvfsresult);
147 g_assert(errbool==FALSE);
149 g_set_error(errp,CMDLINE_CMD_GET_ERROR,CMDLINE_CMD_GET_ERROR_READING_SOURCE_FILE,
150 _("Error reading source guest-os file '%s': %s"),CMD_LOCALE_FROM_UTF8_ALLOCA(sourcefile),g_strerror(errno));
151 goto err_free_transfer_buffer;
154 if (bytes_read!=(GnomeVFSFileSize)(gotssize=write(fdtgt,transfer_buffer,bytes_read))) {
155 g_set_error(errp,CMDLINE_CMD_GET_ERROR,CMDLINE_CMD_GET_ERROR_WRITING_TARGET_HOSTOS_FILE,
156 _("Error writing target host-os file: %s"),CMD_LOCALE_FROM_UTF8_ALLOCA(targetfile));
157 goto err_free_transfer_buffer;
161 err_free_transfer_buffer:
162 g_free(transfer_buffer);
163 /* err_unref_captive_file_object: */
164 g_object_unref(captive_file_object);
167 err_cleanup(errp); /* may be clean */
168 g_set_error(errp,CMDLINE_CMD_GET_ERROR,CMDLINE_CMD_GET_ERROR_CLOSING_TARGET_HOSTOS_FILE,
169 _("Error closing target host-os file '%s': %s"),CMD_LOCALE_FROM_UTF8_ALLOCA(targetfile),g_strerror(errno));