diff options
Diffstat (limited to 'source/smbd/fileio.c')
| -rw-r--r-- | source/smbd/fileio.c | 60 |
1 files changed, 30 insertions, 30 deletions
diff --git a/source/smbd/fileio.c b/source/smbd/fileio.c index 6d6edf9d371..f0bb5e45ac4 100644 --- a/source/smbd/fileio.c +++ b/source/smbd/fileio.c @@ -27,6 +27,7 @@ extern int DEBUGLEVEL; /**************************************************************************** seek a file. Try to avoid the seek if possible ****************************************************************************/ + SMB_OFF_T seek_file(files_struct *fsp,SMB_OFF_T pos) { SMB_OFF_T offset = 0; @@ -41,45 +42,43 @@ SMB_OFF_T seek_file(files_struct *fsp,SMB_OFF_T pos) /**************************************************************************** read from a file ****************************************************************************/ -int read_file(files_struct *fsp,char *data,uint32 pos,int n) + +ssize_t read_file(files_struct *fsp,char *data,SMB_OFF_T pos,size_t n) { - int ret=0,readret; + ssize_t ret=0,readret; #if USE_READ_PREDICTION - if (!fsp->can_write) - { - ret = read_predict(fsp->fd_ptr->fd,pos,data,NULL,n); + if (!fsp->can_write) { + ret = read_predict(fsp->fd_ptr->fd,pos,data,NULL,n); - data += ret; - n -= ret; - pos += ret; - } + data += ret; + n -= ret; + pos += ret; + } #endif #if WITH_MMAP - if (fsp->mmap_ptr) - { - int num = (fsp->mmap_size > pos) ? (fsp->mmap_size - pos) : -1; - num = MIN(n,num); - if (num > 0) - { - memcpy(data,fsp->mmap_ptr+pos,num); - data += num; - pos += num; - n -= num; - ret += num; - } + if (fsp->mmap_ptr) { + SMB_OFF_T num = (fsp->mmap_size > pos) ? (fsp->mmap_size - pos) : -1; + num = MIN(n,num); +#ifdef LARGE_SMB_OFF_T + if ((num > 0) && (num < (1<<(sizeof(size_t)*8))) { +#else /* LARGE_SMB_OFF_T */ + if (num > 0) { +#endif /* LARGE_SMB_OFF_T */ + memcpy(data,fsp->mmap_ptr+pos,num); + data += num; + pos += num; + n -= num; + ret += num; } + } #endif - if (n <= 0) + if (seek_file(fsp,pos) != pos) { + DEBUG(3,("Failed to seek to %.0f\n",(double)pos)); return(ret); - - if (seek_file(fsp,pos) != pos) - { - DEBUG(3,("Failed to seek to %d\n",pos)); - return(ret); - } + } if (n > 0) { readret = read(fsp->fd_ptr->fd,data,n); @@ -93,7 +92,8 @@ int read_file(files_struct *fsp,char *data,uint32 pos,int n) /**************************************************************************** write to a file ****************************************************************************/ -int write_file(files_struct *fsp,char *data,int n) + +ssize_t write_file(files_struct *fsp,char *data,size_t n) { if (!fsp->can_write) { @@ -119,6 +119,7 @@ int write_file(files_struct *fsp,char *data,int n) /******************************************************************* sync a file ********************************************************************/ + void sync_file(connection_struct *conn, files_struct *fsp) { #ifdef HAVE_FSYNC @@ -126,4 +127,3 @@ void sync_file(connection_struct *conn, files_struct *fsp) fsync(fsp->fd_ptr->fd); #endif } - |