-/*
-** Copyright (C) 2001-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
-**
-** This program 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 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 Lesser General Public License for more details.
-**
-** You should have received a copy of the GNU Lesser 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.
-*/
-
-#include "sfconfig.h"
-
-#include <stdio.h>
-#include <string.h>
-#include <math.h>
-
-#include "sndfile.h"
-#include "common.h"
-
-#define STRINGS_DEBUG 0
-#if STRINGS_DEBUG
-static void hexdump (void *data, int len) ;
-#endif
-
-int
-psf_store_string (SF_PRIVATE *psf, int str_type, const char *str)
-{ char new_str [128] ;
- size_t len_remaining, str_len ;
- int k, str_flags ;
-
- if (str == NULL)
- return SFE_STR_BAD_STRING ;
-
- str_len = strlen (str) ;
-
- /* A few extra checks for write mode. */
- if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
- { if ((psf->str_flags & SF_STR_ALLOW_START) == 0)
- return SFE_STR_NO_SUPPORT ;
- if (psf->have_written && (psf->str_flags & SF_STR_ALLOW_END) == 0)
- return SFE_STR_NO_SUPPORT ;
- /* Only allow zero length strings for software. */
- if (str_type != SF_STR_SOFTWARE && str_len == 0)
- return SFE_STR_BAD_STRING ;
- } ;
-
- /* Find the next free slot in table. */
- for (k = 0 ; k < SF_MAX_STRINGS ; k++)
- { /* If we find a matching entry clear it. */
- if (psf->strings [k].type == str_type)
- psf->strings [k].type = -1 ;
-
- if (psf->strings [k].type == 0)
- break ;
- } ;
-
- /* Determine flags */
- str_flags = SF_STR_LOCATE_START ;
- if (psf->file.mode == SFM_RDWR || psf->have_written)
- { if ((psf->str_flags & SF_STR_ALLOW_END) == 0)
- return SFE_STR_NO_ADD_END ;
- str_flags = SF_STR_LOCATE_END ;
- } ;
-
- /* More sanity checking. */
- if (k >= SF_MAX_STRINGS)
- return SFE_STR_MAX_COUNT ;
-
- if (k == 0 && psf->str_end != NULL)
- { psf_log_printf (psf, "SFE_STR_WEIRD : k == 0 && psf->str_end != NULL\n") ;
- return SFE_STR_WEIRD ;
- } ;
-
- if (k != 0 && psf->str_end == NULL)
- { psf_log_printf (psf, "SFE_STR_WEIRD : k != 0 && psf->str_end == NULL\n") ;
- return SFE_STR_WEIRD ;
- } ;
-
- /* Special case for the first string. */
- if (k == 0)
- psf->str_end = psf->str_storage ;
-
- switch (str_type)
- { case SF_STR_SOFTWARE :
- /* In write mode, want to append libsndfile-version to string. */
- if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
- { if (strstr (str, PACKAGE) == NULL)
- { /*
- ** If the supplied string does not already contain a
- ** libsndfile-X.Y.Z component, then add it.
- */
- if (strlen (str) == 0)
- snprintf (new_str, sizeof (new_str), "%s-%s", PACKAGE, VERSION) ;
- else
- snprintf (new_str, sizeof (new_str), "%s (%s-%s)", str, PACKAGE, VERSION) ;
- }
- else
- snprintf (new_str, sizeof (new_str), "%s", str) ;
-
- str = new_str ;
- } ;
- break ;
-
- case SF_STR_TITLE :
- case SF_STR_COPYRIGHT :
- case SF_STR_ARTIST :
- case SF_STR_COMMENT :
- case SF_STR_DATE :
- case SF_STR_ALBUM :
- case SF_STR_LICENSE :
- case SF_STR_TRACKNUMBER :
- case SF_STR_GENRE :
- break ;
-
- default :
- psf_log_printf (psf, "%s : SFE_STR_BAD_TYPE\n", __func__) ;
- return SFE_STR_BAD_TYPE ;
- } ;
-
- str_len = strlen (str) ;
-
- len_remaining = SIGNED_SIZEOF (psf->str_storage) - (psf->str_end - psf->str_storage) ;
-
- if (len_remaining < str_len + 2)
- return SFE_STR_MAX_DATA ;
-
- psf->strings [k].type = str_type ;
- psf->strings [k].str = psf->str_end ;
- psf->strings [k].flags = str_flags ;
-
- memcpy (psf->str_end, str, str_len + 1) ;
- /* Plus one to catch string terminator. */
- psf->str_end += str_len + 1 ;
-
- psf->str_flags |= str_flags ;
-
-#if STRINGS_DEBUG
- psf_log_printf (psf, "str_storage : %X\n", (int) psf->str_storage) ;
- psf_log_printf (psf, "str_end : %X\n", (int) psf->str_end) ;
- psf_log_printf (psf, "sizeof (str_storage) : %d\n", SIGNED_SIZEOF (psf->str_storage)) ;
- psf_log_printf (psf, "used : %d\n", (int ) (psf->str_end - psf->str_storage)) ;
- psf_log_printf (psf, "remaining : %d\n", SIGNED_SIZEOF (psf->str_storage) - (psf->str_end - psf->str_storage)) ;
-
- hexdump (psf->str_storage, 300) ;
-#endif
-
- return 0 ;
-} /* psf_store_string */
-
-int
-psf_set_string (SF_PRIVATE *psf, int str_type, const char *str)
-{ if (psf->file.mode == SFM_READ)
- return SFE_STR_NOT_WRITE ;
-
- return psf_store_string (psf, str_type, str) ;
-} /* psf_set_string */
-
-const char*
-psf_get_string (SF_PRIVATE *psf, int str_type)
-{ int k ;
-
- for (k = 0 ; k < SF_MAX_STRINGS ; k++)
- if (str_type == psf->strings [k].type)
- return psf->strings [k].str ;
-
- return NULL ;
-} /* psf_get_string */
-
-int
-psf_location_string_count (const SF_PRIVATE * psf, int location)
-{ int k, count = 0 ;
-
- for (k = 0 ; k < SF_MAX_STRINGS ; k++)
- if (psf->strings [k].type > 0 && psf->strings [k].flags & location)
- count ++ ;
-
- return count ;
-} /* psf_location_string_count */
-
-/*==============================================================================
-*/
-
-#if STRINGS_DEBUG
-
-#include <ctype.h>
-static void
-hexdump (void *data, int len)
-{ unsigned char *ptr ;
- int k ;
-
- ptr = data ;
-
- puts ("---------------------------------------------------------") ;
- while (len >= 16)
- { for (k = 0 ; k < 16 ; k++)
- printf ("%02X ", ptr [k] & 0xFF) ;
- printf (" ") ;
- for (k = 0 ; k < 16 ; k++)
- printf ("%c", psf_isprint (ptr [k]) ? ptr [k] : '.') ;
- puts ("") ;
- ptr += 16 ;
- len -= 16 ;
- } ;
-} /* hexdump */
-
-#endif
projects / Faustine.git / blobdiff