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-rw-r--r--plugins/shn/misc.c151
1 files changed, 151 insertions, 0 deletions
diff --git a/plugins/shn/misc.c b/plugins/shn/misc.c
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+++ b/plugins/shn/misc.c
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+/* misc.c - miscellaneous functions
+ * Copyright (C) 2000-2007 Jason Jordan <shnutils@freeshell.org>
+ *
+ * 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 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * $Id: misc.c,v 1.14 2007/03/23 05:49:48 jason Exp $
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include "shorten.h"
+
+void shn_snprintf(char *dest,int maxlen,char *formatstr, ...)
+/* acts like snprintf, but makes 100% sure the string is NULL-terminated */
+{
+ va_list args;
+
+ va_start(args,formatstr);
+
+ shn_vsnprintf(dest,maxlen,formatstr,args);
+
+ dest[maxlen-1] = 0;
+
+ va_end(args);
+}
+
+int shn_filename_contains_a_dot(const char *filename)
+{
+ char *slash,*dot;
+
+ dot = strrchr(filename,'.');
+ if (!dot)
+ return 0;
+
+ slash = strrchr(filename,'/');
+ if (!slash)
+ return 1;
+
+ if (slash < dot)
+ return 1;
+ else
+ return 0;
+}
+
+char *shn_get_base_filename(const char *filename)
+{
+ const char *b,*e,*p;
+ char *base;
+
+ b = strrchr(filename,'/');
+
+ if (b)
+ b++;
+ else
+ b = filename;
+
+ e = strrchr(filename,'.');
+
+ if (e < b)
+ e = filename + strlen(filename);
+
+ if (NULL == (base = malloc((e - b + 1) * sizeof(char))))
+ {
+ shn_debug("Could not allocate memory for base filename");
+ return NULL;
+ }
+
+ for (p=b;p<e;p++)
+ *(base + (p - b)) = *p;
+
+ *(base + (p - b)) = '\0';
+
+ return base;
+}
+
+char *shn_get_base_directory(const char *filename)
+{
+ const char *e,*p;
+ char *base;
+
+ e = strrchr(filename,'/');
+
+ if (!e)
+ e = filename;
+
+ if (NULL == (base = malloc((e - filename + 1) * sizeof(char))))
+ {
+ shn_debug("Could not allocate memory for base directory");
+ return NULL;
+ }
+
+ for (p=filename;p<e;p++)
+ *(base + (p - filename)) = *p;
+
+ *(base + (p - filename)) = '\0';
+
+ return base;
+}
+
+void shn_length_to_str(shn_file *info)
+/* converts length of file to a string in m:ss or m:ss.ff format */
+{
+ ulong newlength,rem1,rem2,frames,ms;
+ double tmp;
+
+ if (PROB_NOT_CD(info->wave_header)) {
+ newlength = (ulong)info->wave_header.exact_length;
+
+ tmp = info->wave_header.exact_length - (double)((ulong)info->wave_header.exact_length);
+ ms = (ulong)((tmp * 1000.0) + 0.5);
+
+ if (1000 == ms) {
+ ms = 0;
+ newlength++;
+ }
+
+ shn_snprintf(info->wave_header.m_ss,16,"%lu:%02lu.%03lu",newlength/60,newlength%60,ms);
+ }
+ else {
+ newlength = info->wave_header.length;
+
+ rem1 = info->wave_header.data_size % CD_RATE;
+ rem2 = rem1 % CD_BLOCK_SIZE;
+
+ frames = rem1 / CD_BLOCK_SIZE;
+ if (rem2 >= (CD_BLOCK_SIZE / 2))
+ frames++;
+
+ if (frames == CD_BLOCKS_PER_SEC) {
+ frames = 0;
+ newlength++;
+ }
+
+ shn_snprintf(info->wave_header.m_ss,16,"%lu:%02lu.%02lu",newlength/60,newlength%60,frames);
+ }
+}