117 lines
3.5 KiB
C
117 lines
3.5 KiB
C
/****************************************************************
|
|
* *
|
|
* Copyright 2003, 2007 Fidelity Information Services, Inc *
|
|
* *
|
|
* This source code contains the intellectual property *
|
|
* of its copyright holder(s), and is made available *
|
|
* under a license. If you do not know the terms of *
|
|
* the license, please stop and do not read further. *
|
|
* *
|
|
****************************************************************/
|
|
|
|
#include "mdef.h"
|
|
|
|
#include "gtm_string.h"
|
|
#include "gtm_time.h"
|
|
|
|
#include "iosp.h"
|
|
#include "gtm_file_stat.h"
|
|
#include "gtm_rename.h"
|
|
#include "gtmmsg.h"
|
|
|
|
#define MAX_CHARS_APPEND 10
|
|
|
|
#if defined(UNIX)
|
|
# define DIR_FILE_SEPARATOR '/'
|
|
#elif defined(VMS)
|
|
# define DIR_FILE_SEPARATOR ']'
|
|
#endif
|
|
|
|
/* Given org_fn this will create rename_fn
|
|
* a) If prefix is not null, rename_fn = prefix + org_fn
|
|
* b) If suffix is not null, rename_fn = org_fn + suffix
|
|
* c) If prefix and suffix both not null Then
|
|
* rename_fn = org_fn + timestamp
|
|
* If rename_fn exists, add numbers to make it non-existance file
|
|
*/
|
|
uint4 prepare_unique_name(char *org_fn, int org_fn_len, char *prefix, char *suffix,
|
|
char *rename_fn, int *rename_fn_len, uint4 *ustatus)
|
|
{
|
|
mstr filestr;
|
|
char *filename_begin, append_char[MAX_CHARS_APPEND] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'};
|
|
int prefix_len, suffix_len, cnt, length;
|
|
struct tm *tm_struct;
|
|
int file_stat;
|
|
uint4 status1;
|
|
|
|
error_def(ERR_FILENAMETOOLONG);
|
|
|
|
*ustatus = SS_NORMAL;
|
|
if (0 != prefix[0])
|
|
{
|
|
prefix_len = STRLEN(prefix);
|
|
assert('\0' == org_fn[org_fn_len]);
|
|
filename_begin = strrchr(org_fn, DIR_FILE_SEPARATOR);
|
|
length = 0;
|
|
if (NULL != filename_begin)
|
|
{
|
|
length = (int4)(filename_begin - org_fn + 1);
|
|
assert(length < org_fn_len);
|
|
memcpy(rename_fn, org_fn, length);
|
|
org_fn_len -= length;
|
|
org_fn += length;
|
|
}
|
|
memcpy(rename_fn + length, prefix, prefix_len);
|
|
memcpy(rename_fn + length + prefix_len, org_fn, org_fn_len);
|
|
*rename_fn_len = length + prefix_len + org_fn_len;
|
|
}
|
|
if (0 != suffix[0])
|
|
{
|
|
suffix_len = STRLEN(suffix);
|
|
memcpy(rename_fn, org_fn, org_fn_len);
|
|
memcpy(rename_fn + org_fn_len, suffix, suffix_len);
|
|
*rename_fn_len = org_fn_len + suffix_len;
|
|
}
|
|
if (0 != prefix[0] || 0 != suffix[0])
|
|
{
|
|
rename_fn[*rename_fn_len] = 0; /* Ensure it to be NULL terminated */
|
|
return SS_NORMAL;
|
|
}
|
|
memcpy(rename_fn, org_fn, org_fn_len);
|
|
filestr.addr = rename_fn;
|
|
filestr.len = org_fn_len;
|
|
rename_fn[filestr.len] = 0;
|
|
assert(filestr.len + 1 < MAX_FN_LEN);
|
|
if (SS_NORMAL != (status1 = append_time_stamp(rename_fn, filestr.len, &length, ustatus)))
|
|
return status1;
|
|
filestr.len += length;
|
|
if (FILE_PRESENT == (file_stat = gtm_file_stat(&filestr, NULL, NULL, FALSE, ustatus))) /* One already exists */
|
|
{ /* new name refers to an existing file - stuff numbers on the end until its unique */
|
|
rename_fn[filestr.len] = '_';
|
|
filestr.len += 2; /* 2 is for "_" + "append_char[]" */
|
|
for ( ; filestr.len < MAX_FN_LEN; filestr.len++)
|
|
{
|
|
rename_fn[filestr.len] = '\0';
|
|
filestr.len = filestr.len;
|
|
for (cnt = 0; cnt < MAX_CHARS_APPEND; cnt++)
|
|
{
|
|
rename_fn[filestr.len - 1] = append_char[cnt];
|
|
if (FILE_NOT_FOUND == gtm_file_stat(&filestr, NULL, NULL, FALSE, ustatus))
|
|
break;
|
|
}
|
|
if (cnt < MAX_CHARS_APPEND) /* found one non existance file */
|
|
break;
|
|
}
|
|
*ustatus = SS_NORMAL;
|
|
if (MAX_FN_LEN <= filestr.len)
|
|
return ERR_FILENAMETOOLONG; /* no parameter for this message */
|
|
} else if (FILE_STAT_ERROR == file_stat)
|
|
{
|
|
status1 = *ustatus;
|
|
*ustatus = SS_NORMAL;
|
|
return status1;
|
|
}
|
|
*rename_fn_len = filestr.len;
|
|
return SS_NORMAL;
|
|
}
|