/* * utils.c: miscellaneous utilities * * Copyright (c) 2013, Přemysl Janouch * All rights reserved. * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * */ #include #include #include #include #include #include #ifndef TIOCGWINSZ #include #endif // ! TIOCGWINSZ #include "config.h" #include "utils.h" /** Read the whole stream into a byte array. */ gboolean stream_read_all (GByteArray *ba, GInputStream *is, GError **error) { guint8 buffer[1024 * 64]; gsize bytes_read; while (g_input_stream_read_all (is, buffer, sizeof buffer, &bytes_read, NULL, error)) { g_byte_array_append (ba, buffer, bytes_read); if (bytes_read < sizeof buffer) return TRUE; } return FALSE; } /** Read a null-terminated string from a data input stream. */ gchar * stream_read_string (GDataInputStream *dis, GError **error) { gsize length; gchar *s = g_data_input_stream_read_upto (dis, "", 1, &length, NULL, error); if (!s) return NULL; GError *err = NULL; g_data_input_stream_read_byte (dis, NULL, &err); if (err) { g_free (s); g_propagate_error (error, err); return NULL; } return s; } static bool xstrtoul (unsigned long *out, const char *s, int base) { char *end; errno = 0; *out = strtoul (s, &end, base); return errno == 0 && !*end && end != s; } // Didn't want to have this ugly piece of code in the main source file; // the standard endwin/refresh sequence makes the terminal flicker. void update_curses_terminal_size (void) { #if defined (HAVE_RESIZETERM) && defined (TIOCGWINSZ) struct winsize size; if (!ioctl (STDOUT_FILENO, TIOCGWINSZ, (char *) &size)) { char *row = getenv ("LINES"); char *col = getenv ("COLUMNS"); unsigned long tmp; resizeterm ( (row && xstrtoul (&tmp, row, 10)) ? tmp : size.ws_row, (col && xstrtoul (&tmp, col, 10)) ? tmp : size.ws_col); } #else // HAVE_RESIZETERM && TIOCGWINSZ endwin (); refresh (); #endif // HAVE_RESIZETERM && TIOCGWINSZ }