[apple/icu.git] / icuSources / tools / toolutil / unewdata.c

/*
*******************************************************************************
*
*   Copyright (C) 1999-2010, International Business Machines
*   Corporation and others.  All Rights Reserved.
*
*******************************************************************************
*   file name:  unewdata.c
*   encoding:   US-ASCII
*   tab size:   8 (not used)
*   indentation:4
*
*   created on: 1999oct25
*   created by: Markus W. Scherer
*/

#include <stdio.h>
#include "unicode/utypes.h"
#include "unicode/putil.h"
#include "unicode/ustring.h"
#include "cmemory.h"
#include "cstring.h"
#include "filestrm.h"
#include "unicode/udata.h"
#include "unewdata.h"

struct UNewDataMemory {
    FileStream *file;
    uint16_t headerSize;
    uint8_t magic1, magic2;
};

U_CAPI UNewDataMemory * U_EXPORT2
udata_create(const char *dir, const char *type, const char *name,
             const UDataInfo *pInfo,
             const char *comment,
             UErrorCode *pErrorCode) {
    UNewDataMemory *pData;
    uint16_t headerSize, commentLength;
    char filename[512];
    uint8_t bytes[16];
    int length;

    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
        return NULL;
    } else if(name==NULL || *name==0 || pInfo==NULL) {
        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
        return NULL;
    }

    /* allocate the data structure */
    pData=(UNewDataMemory *)uprv_malloc(sizeof(UNewDataMemory));
    if(pData==NULL) {
        *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
        return NULL;
    }
    
    /* Check that the full path won't be too long */
    length = 0;					/* Start with nothing */
    if(dir != NULL  && *dir !=0)	/* Add directory length if one was given */
    {
    	length += strlen(dir);
	
    	/* Add 1 if dir doesn't end with path sep */
        if (dir[strlen(dir) - 1]!= U_FILE_SEP_CHAR) {
            length++;
        }
	}
    length += strlen(name);		/* Add the filename length */

    if(type != NULL  && *type !=0) { /* Add directory length if  given */
        length += strlen(type);
    }

        
     /* LDH buffer Length error check */
    if(length  > (sizeof(filename) - 1))
    {
   	    *pErrorCode = U_BUFFER_OVERFLOW_ERROR;
   	    uprv_free(pData);
	    return NULL;
    }
   
    /* open the output file */
    if(dir!=NULL && *dir!=0) { /* if dir has a value, we prepend it to the filename */
        char *p=filename+strlen(dir);
        uprv_strcpy(filename, dir);
        if (*(p-1)!=U_FILE_SEP_CHAR) {
            *p++=U_FILE_SEP_CHAR;
            *p=0;
        }
    } else { /* otherwise, we'll output to the current dir */
        filename[0]=0;
    }
    uprv_strcat(filename, name);
    if(type!=NULL && *type!=0) {
        uprv_strcat(filename, ".");
        uprv_strcat(filename, type);
    }
    pData->file=T_FileStream_open(filename, "wb");
    if(pData->file==NULL) {
        uprv_free(pData);
        *pErrorCode=U_FILE_ACCESS_ERROR;
        return NULL;
    }

    /* write the header information */
    headerSize=(uint16_t)(pInfo->size+4);
    if(comment!=NULL && *comment!=0) {
        commentLength=(uint16_t)(uprv_strlen(comment)+1);
        headerSize+=commentLength;
    } else {
        commentLength=0;
    }

    /* write the size of the header, take padding into account */
    pData->headerSize=(uint16_t)((headerSize+15)&~0xf);
    pData->magic1=0xda;
    pData->magic2=0x27;
    T_FileStream_write(pData->file, &pData->headerSize, 4);

    /* write the information data */
    T_FileStream_write(pData->file, pInfo, pInfo->size);

    /* write the comment */
    if(commentLength>0) {
        T_FileStream_write(pData->file, comment, commentLength);
    }

    /* write padding bytes to align the data section to 16 bytes */
    headerSize&=0xf;
    if(headerSize!=0) {
        headerSize=(uint16_t)(16-headerSize);
        uprv_memset(bytes, 0, headerSize);
        T_FileStream_write(pData->file, bytes, headerSize);
    }

    return pData;
}

U_CAPI uint32_t U_EXPORT2
udata_finish(UNewDataMemory *pData, UErrorCode *pErrorCode) {
    uint32_t fileLength=0;

    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
        return 0;
    }

    if(pData!=NULL) {
        if(pData->file!=NULL) {
            /* fflush(pData->file);*/
            fileLength=T_FileStream_size(pData->file);
            if(T_FileStream_error(pData->file)) {
                *pErrorCode=U_FILE_ACCESS_ERROR;
            } else {
                fileLength-=pData->headerSize;
            }
            T_FileStream_close(pData->file);
        }
        uprv_free(pData);
    }

    return fileLength;
}

/* dummy UDataInfo cf. udata.h */
static const UDataInfo dummyDataInfo = {
    sizeof(UDataInfo),
    0,

    U_IS_BIG_ENDIAN,
    U_CHARSET_FAMILY,
    U_SIZEOF_UCHAR,
    0,

    { 0, 0, 0, 0 },                 /* dummy dataFormat */
    { 0, 0, 0, 0 },                 /* dummy formatVersion */
    { 0, 0, 0, 0 }                  /* dummy dataVersion */
};

U_CAPI void U_EXPORT2
udata_createDummy(const char *dir, const char *type, const char *name, UErrorCode *pErrorCode) {
    if(U_SUCCESS(*pErrorCode)) {
        udata_finish(udata_create(dir, type, name, &dummyDataInfo, NULL, pErrorCode), pErrorCode);
        if(U_FAILURE(*pErrorCode)) {
            fprintf(stderr, "error %s writing dummy data file %s" U_FILE_SEP_STRING "%s.%s\n",
                    u_errorName(*pErrorCode), dir, name, type);
            exit(*pErrorCode);
        }
    }
}

U_CAPI void U_EXPORT2
udata_write8(UNewDataMemory *pData, uint8_t byte) {
    if(pData!=NULL && pData->file!=NULL) {
        T_FileStream_write(pData->file, &byte, 1);
    }
}

U_CAPI void U_EXPORT2
udata_write16(UNewDataMemory *pData, uint16_t word) {
    if(pData!=NULL && pData->file!=NULL) {
        T_FileStream_write(pData->file, &word, 2);
    }
}

U_CAPI void U_EXPORT2
udata_write32(UNewDataMemory *pData, uint32_t wyde) {
    if(pData!=NULL && pData->file!=NULL) {
        T_FileStream_write(pData->file, &wyde, 4);
    }
}

U_CAPI void U_EXPORT2
udata_writeBlock(UNewDataMemory *pData, const void *s, int32_t length) {
    if(pData!=NULL && pData->file!=NULL) {
        if(length>0) {
            T_FileStream_write(pData->file, s, length);
        }
    }
}

U_CAPI void U_EXPORT2
udata_writePadding(UNewDataMemory *pData, int32_t length) {
    static const uint8_t padding[16]={
        0xaa, 0xaa, 0xaa, 0xaa,
        0xaa, 0xaa, 0xaa, 0xaa,
        0xaa, 0xaa, 0xaa, 0xaa,
        0xaa, 0xaa, 0xaa, 0xaa
    };
    if(pData!=NULL && pData->file!=NULL) {
        while(length>=16) {
            T_FileStream_write(pData->file, padding, 16);
            length-=16;
        }
        if(length>0) {
            T_FileStream_write(pData->file, padding, length);
        }
    }
}

U_CAPI void U_EXPORT2
udata_writeString(UNewDataMemory *pData, const char *s, int32_t length) {
    if(pData!=NULL && pData->file!=NULL) {
        if(length==-1) {
            length=(int32_t)uprv_strlen(s);
        }
        if(length>0) {
            T_FileStream_write(pData->file, s, length);
        }
    }
}

U_CAPI void U_EXPORT2
udata_writeUString(UNewDataMemory *pData, const UChar *s, int32_t length) {
    if(pData!=NULL && pData->file!=NULL) {
        if(length==-1) {
            length=u_strlen(s);
        }
        if(length>0) {
            T_FileStream_write(pData->file, s, length*sizeof(UChar));
        }
    }
}

/*
 * Hey, Emacs, please set the following:
 *
 * Local Variables:
 * indent-tabs-mode: nil
 * End:
 *
 */
Commit	Line	Data
b75a7d8f A	1	/*
	2	*******************************************************************************
	3	*
729e4ab9	4	* Copyright (C) 1999-2010, International Business Machines
b75a7d8f A	5	* Corporation and others. All Rights Reserved.
	6	*
	7	*******************************************************************************
	8	* file name: unewdata.c
	9	* encoding: US-ASCII
	10	* tab size: 8 (not used)
	11	* indentation:4
	12	*
	13	* created on: 1999oct25
	14	* created by: Markus W. Scherer
	15	*/
	16
729e4ab9	17	#include <stdio.h>
b75a7d8f A	18	#include "unicode/utypes.h"
	19	#include "unicode/putil.h"
	20	#include "unicode/ustring.h"
	21	#include "cmemory.h"
	22	#include "cstring.h"
	23	#include "filestrm.h"
	24	#include "unicode/udata.h"
	25	#include "unewdata.h"
	26
	27	struct UNewDataMemory {
	28	FileStream *file;
	29	uint16_t headerSize;
	30	uint8_t magic1, magic2;
	31	};
	32
	33	U_CAPI UNewDataMemory * U_EXPORT2
	34	udata_create(const char dir, const char type, const char *name,
	35	const UDataInfo *pInfo,
	36	const char *comment,
	37	UErrorCode *pErrorCode) {
	38	UNewDataMemory *pData;
	39	uint16_t headerSize, commentLength;
	40	char filename[512];
	41	uint8_t bytes[16];
46f4442e	42	int length;
b75a7d8f A	43
	44	if(pErrorCode==NULL \|\| U_FAILURE(*pErrorCode)) {
	45	return NULL;
	46	} else if(name==NULL \|\| *name==0 \|\| pInfo==NULL) {
	47	*pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
	48	return NULL;
	49	}
	50
	51	/* allocate the data structure */
	52	pData=(UNewDataMemory *)uprv_malloc(sizeof(UNewDataMemory));
	53	if(pData==NULL) {
	54	*pErrorCode=U_MEMORY_ALLOCATION_ERROR;
	55	return NULL;
	56	}
46f4442e A	57
	58	/* Check that the full path won't be too long */
	59	length = 0; /* Start with nothing */
	60	if(dir != NULL && dir !=0) / Add directory length if one was given */
	61	{
	62	length += strlen(dir);
	63
	64	/* Add 1 if dir doesn't end with path sep */
	65	if (dir[strlen(dir) - 1]!= U_FILE_SEP_CHAR) {
	66	length++;
	67	}
	68	}
	69	length += strlen(name); /* Add the filename length */
b75a7d8f	70
46f4442e A	71	if(type != NULL && type !=0) { / Add directory length if given */
	72	length += strlen(type);
	73	}
	74
	75
	76	/* LDH buffer Length error check */
	77	if(length > (sizeof(filename) - 1))
	78	{
	79	*pErrorCode = U_BUFFER_OVERFLOW_ERROR;
	80	uprv_free(pData);
	81	return NULL;
	82	}
	83
b75a7d8f A	84	/* open the output file */
	85	if(dir!=NULL && dir!=0) { / if dir has a value, we prepend it to the filename */
	86	char *p=filename+strlen(dir);
	87	uprv_strcpy(filename, dir);
	88	if (*(p-1)!=U_FILE_SEP_CHAR) {
	89	*p++=U_FILE_SEP_CHAR;
	90	*p=0;
	91	}
	92	} else { /* otherwise, we'll output to the current dir */
	93	filename[0]=0;
	94	}
	95	uprv_strcat(filename, name);
	96	if(type!=NULL && *type!=0) {
	97	uprv_strcat(filename, ".");
	98	uprv_strcat(filename, type);
	99	}
	100	pData->file=T_FileStream_open(filename, "wb");
	101	if(pData->file==NULL) {
	102	uprv_free(pData);
	103	*pErrorCode=U_FILE_ACCESS_ERROR;
	104	return NULL;
	105	}
	106
	107	/* write the header information */
	108	headerSize=(uint16_t)(pInfo->size+4);
	109	if(comment!=NULL && *comment!=0) {
	110	commentLength=(uint16_t)(uprv_strlen(comment)+1);
	111	headerSize+=commentLength;
	112	} else {
	113	commentLength=0;
	114	}
	115
	116	/* write the size of the header, take padding into account */
	117	pData->headerSize=(uint16_t)((headerSize+15)&~0xf);
	118	pData->magic1=0xda;
	119	pData->magic2=0x27;
	120	T_FileStream_write(pData->file, &pData->headerSize, 4);
	121
	122	/* write the information data */
	123	T_FileStream_write(pData->file, pInfo, pInfo->size);
	124
	125	/* write the comment */
	126	if(commentLength>0) {
	127	T_FileStream_write(pData->file, comment, commentLength);
	128	}
	129
	130	/* write padding bytes to align the data section to 16 bytes */
	131	headerSize&=0xf;
	132	if(headerSize!=0) {
	133	headerSize=(uint16_t)(16-headerSize);
	134	uprv_memset(bytes, 0, headerSize);
	135	T_FileStream_write(pData->file, bytes, headerSize);
	136	}
	137
	138	return pData;
	139	}
	140
	141	U_CAPI uint32_t U_EXPORT2
	142	udata_finish(UNewDataMemory pData, UErrorCode pErrorCode) {
	143	uint32_t fileLength=0;
	144
	145	if(pErrorCode==NULL \|\| U_FAILURE(*pErrorCode)) {
	146	return 0;
	147	}
148
149	if(pData!=NULL) {
150	if(pData->file!=NULL) {
151	/* fflush(pData->file);*/
152	fileLength=T_FileStream_size(pData->file);
153	if(T_FileStream_error(pData->file)) {
154	*pErrorCode=U_FILE_ACCESS_ERROR;
155	} else {
156	fileLength-=pData->headerSize;
157	}
158	T_FileStream_close(pData->file);
159	}
160	uprv_free(pData);
161	}
162
163	return fileLength;
164	}
165
729e4ab9 A	166	/* dummy UDataInfo cf. udata.h */
	167	static const UDataInfo dummyDataInfo = {
	168	sizeof(UDataInfo),
	169	0,
	170
	171	U_IS_BIG_ENDIAN,
	172	U_CHARSET_FAMILY,
	173	U_SIZEOF_UCHAR,
	174	0,
	175
	176	{ 0, 0, 0, 0 }, /* dummy dataFormat */
	177	{ 0, 0, 0, 0 }, /* dummy formatVersion */
	178	{ 0, 0, 0, 0 } /* dummy dataVersion */
	179	};
	180
	181	U_CAPI void U_EXPORT2
	182	udata_createDummy(const char dir, const char type, const char name, UErrorCode pErrorCode) {
	183	if(U_SUCCESS(*pErrorCode)) {
	184	udata_finish(udata_create(dir, type, name, &dummyDataInfo, NULL, pErrorCode), pErrorCode);
	185	if(U_FAILURE(*pErrorCode)) {
	186	fprintf(stderr, "error %s writing dummy data file %s" U_FILE_SEP_STRING "%s.%s\n",
	187	u_errorName(*pErrorCode), dir, name, type);
	188	exit(*pErrorCode);
	189	}
	190	}
	191	}
	192
b75a7d8f A	193	U_CAPI void U_EXPORT2
	194	udata_write8(UNewDataMemory *pData, uint8_t byte) {
	195	if(pData!=NULL && pData->file!=NULL) {
	196	T_FileStream_write(pData->file, &byte, 1);
	197	}
	198	}
	199
	200	U_CAPI void U_EXPORT2
	201	udata_write16(UNewDataMemory *pData, uint16_t word) {
	202	if(pData!=NULL && pData->file!=NULL) {
	203	T_FileStream_write(pData->file, &word, 2);
	204	}
	205	}
	206
	207	U_CAPI void U_EXPORT2
	208	udata_write32(UNewDataMemory *pData, uint32_t wyde) {
	209	if(pData!=NULL && pData->file!=NULL) {
	210	T_FileStream_write(pData->file, &wyde, 4);
	211	}
	212	}
	213
	214	U_CAPI void U_EXPORT2
	215	udata_writeBlock(UNewDataMemory pData, const void s, int32_t length) {
	216	if(pData!=NULL && pData->file!=NULL) {
	217	if(length>0) {
	218	T_FileStream_write(pData->file, s, length);
	219	}
	220	}
	221	}
	222
	223	U_CAPI void U_EXPORT2
	224	udata_writePadding(UNewDataMemory *pData, int32_t length) {
374ca955	225	static const uint8_t padding[16]={
b75a7d8f A	226	0xaa, 0xaa, 0xaa, 0xaa,
	227	0xaa, 0xaa, 0xaa, 0xaa,
	228	0xaa, 0xaa, 0xaa, 0xaa,
	229	0xaa, 0xaa, 0xaa, 0xaa
	230	};
	231	if(pData!=NULL && pData->file!=NULL) {
	232	while(length>=16) {
	233	T_FileStream_write(pData->file, padding, 16);
	234	length-=16;
	235	}
	236	if(length>0) {
	237	T_FileStream_write(pData->file, padding, length);
	238	}
	239	}
	240	}
	241
	242	U_CAPI void U_EXPORT2
	243	udata_writeString(UNewDataMemory pData, const char s, int32_t length) {
	244	if(pData!=NULL && pData->file!=NULL) {
	245	if(length==-1) {
	246	length=(int32_t)uprv_strlen(s);
	247	}
	248	if(length>0) {
	249	T_FileStream_write(pData->file, s, length);
	250	}
	251	}
	252	}
	253
	254	U_CAPI void U_EXPORT2
	255	udata_writeUString(UNewDataMemory pData, const UChar s, int32_t length) {
	256	if(pData!=NULL && pData->file!=NULL) {
	257	if(length==-1) {
	258	length=u_strlen(s);
	259	}
	260	if(length>0) {
	261	T_FileStream_write(pData->file, s, length*sizeof(UChar));
	262	}
	263	}
	264	}
	265
	266	/*
	267	* Hey, Emacs, please set the following:
	268	*
	269	* Local Variables:
	270	* indent-tabs-mode: nil
	271	* End:
	272	*
	273	*/
	274