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*/
#include "config.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "file.h"
/*
** The file status information from the most recent stat() call.
*/
static struct stat fileStat;
static int fileStatValid = 0;
/*
** Return the size of a file in bytes. Return -1 if the file does not
** exist.
** Fill in the fileStat variable for the file named zFilename.
** If zFilename==0, then use the previous value of fileStat if
** there is a previous value.
**
** Return the number of errors. No error messages are generated.
*/
i64 file_size(const char *zFilename){
struct stat buf;
if( stat(zFilename, &buf)!=0 ){
return -1;
}
return buf.st_size;
static int getStat(const char *zFilename){
if( zFilename==0 ){
if( fileStatValid==0 ) return 1;
}else{
if( stat(zFilename, &fileStat)!=0 ) return 1;
}
return 0;
}
/*
** Return the size of a file in bytes. Return -1 if the file does not
** exist. If zFilename is NULL, return the size of the most recently
** stat-ed file.
*/
i64 file_size(const char *zFilename){
return getStat(zFilename) ? -1 : fileStat.st_size;
}
/*
** Return the modification time for a file. Return -1 if the file
** does not exist.
** does not exist. If zFilename is NULL return the size of the most
** recently stat-ed file.
*/
i64 file_mtime(const char *zFilename){
return getStat(zFilename) ? -1 : fileStat.st_mtime;
}
struct stat buf;
if( stat(zFilename, &buf)!=0 ){
return -1;
}
return buf.st_mtime;
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while( (got=fread(zBuf, 1, sizeof(zBuf), in))>0 ){
fwrite(zBuf, 1, got, out);
}
fclose(in);
fclose(out);
}
/*
** Return TRUE if the named file is an ordinary file. Return false
** for directories, devices, fifos, symlinks, etc.
*/
int file_isfile(const char *zFilename){
struct stat buf;
if( stat(zFilename, &buf)!=0 ){
return 0;
}
return S_ISREG(buf.st_mode);
}
/*
** Return TRUE if the named file is an executable. Return false
** for directories, devices, fifos, symlinks, etc.
*/
int file_isexe(const char *zFilename){
struct stat buf;
if( stat(zFilename, &buf)!=0 ){
return 0;
}
if( !S_ISREG(buf.st_mode) ) return 0;
#ifdef __MINGW32__
return ((S_IXUSR)&buf.st_mode)!=0;
#else
return ((S_IXUSR|S_IXGRP|S_IXOTH)&buf.st_mode)!=0;
#endif
}
/*
** Return 1 if zFilename is a directory. Return 0 if zFilename
** does not exist. Return 2 if zFilename exists but is something
** other than a directory.
*/
int file_isdir(const char *zFilename){
struct stat buf;
int rc;
char *zFN;
zFN = mprintf("%s", zFilename);
file_simplify_name(zFN, strlen(zFN));
rc = stat(zFN, &buf);
free(zFN);
return rc!=0 ? 0 : (S_ISDIR(buf.st_mode) ? 1 : 2);
}
|