| /* |
| * Copyright 2015 Red Hat, Inc. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| * |
| * Author: Matthias Clasen <mclasen@redhat.com> |
| */ |
| |
| #include "config.h" |
| |
| #include <gio/gio.h> |
| #include <gi18n.h> |
| #include <errno.h> |
| |
| #ifdef G_OS_WIN32 |
| #include <io.h> |
| #endif |
| |
| #ifndef STDOUT_FILENO |
| #define STDOUT_FILENO 1 |
| #endif |
| |
| #ifdef HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| |
| #include "gio-tool.h" |
| |
| |
| static const GOptionEntry entries[] = { |
| { NULL } |
| }; |
| |
| /* 256k minus malloc overhead */ |
| #define STREAM_BUFFER_SIZE (1024*256 - 2*sizeof(gpointer)) |
| |
| static gboolean |
| cat (GFile *file) |
| { |
| GInputStream *in; |
| char *buffer; |
| char *p; |
| gssize res; |
| gboolean close_res; |
| GError *error; |
| gboolean success; |
| |
| error = NULL; |
| in = (GInputStream *) g_file_read (file, NULL, &error); |
| if (in == NULL) |
| { |
| print_file_error (file, error->message); |
| g_error_free (error); |
| return FALSE; |
| } |
| |
| buffer = g_malloc (STREAM_BUFFER_SIZE); |
| success = TRUE; |
| while (1) |
| { |
| res = g_input_stream_read (in, buffer, STREAM_BUFFER_SIZE, NULL, &error); |
| if (res > 0) |
| { |
| gssize written; |
| |
| p = buffer; |
| while (res > 0) |
| { |
| int errsv; |
| |
| written = write (STDOUT_FILENO, p, res); |
| errsv = errno; |
| |
| if (written == -1 && errsv != EINTR) |
| { |
| print_error ("%s", _("Error writing to stdout")); |
| success = FALSE; |
| goto out; |
| } |
| res -= written; |
| p += written; |
| } |
| } |
| else if (res < 0) |
| { |
| print_file_error (file, error->message); |
| g_error_free (error); |
| error = NULL; |
| success = FALSE; |
| break; |
| } |
| else if (res == 0) |
| break; |
| } |
| |
| out: |
| close_res = g_input_stream_close (in, NULL, &error); |
| if (!close_res) |
| { |
| print_file_error (file, error->message); |
| g_error_free (error); |
| success = FALSE; |
| } |
| |
| g_free (buffer); |
| |
| return success; |
| } |
| |
| int |
| handle_cat (int argc, char *argv[], gboolean do_help) |
| { |
| GOptionContext *context; |
| gchar *param; |
| GError *error = NULL; |
| int i; |
| gboolean res; |
| GFile *file; |
| |
| g_set_prgname ("gio cat"); |
| /* Translators: commandline placeholder */ |
| param = g_strdup_printf ("%s…", _("LOCATION")); |
| context = g_option_context_new (param); |
| g_free (param); |
| g_option_context_set_help_enabled (context, FALSE); |
| g_option_context_set_summary (context, |
| _("Concatenate files and print to standard output.")); |
| g_option_context_set_description (context, |
| _("gio cat works just like the traditional cat utility, but using GIO\n" |
| "locations instead of local files: for example, you can use something\n" |
| "like smb://server/resource/file.txt as location.")); |
| g_option_context_add_main_entries (context, entries, GETTEXT_PACKAGE); |
| |
| if (do_help) |
| { |
| show_help (context, NULL); |
| g_option_context_free (context); |
| return 0; |
| } |
| |
| if (!g_option_context_parse (context, &argc, &argv, &error)) |
| { |
| show_help (context, error->message); |
| g_error_free (error); |
| g_option_context_free (context); |
| return 1; |
| } |
| |
| if (argc < 2) |
| { |
| show_help (context, _("No locations given")); |
| g_option_context_free (context); |
| return 1; |
| } |
| |
| g_option_context_free (context); |
| |
| res = TRUE; |
| for (i = 1; i < argc; i++) |
| { |
| file = g_file_new_for_commandline_arg (argv[i]); |
| res &= cat (file); |
| g_object_unref (file); |
| } |
| |
| return res ? 0 : 2; |
| } |