pSOSystem System Calls - Read

write_f pHILE+ System Calls
write_f Writes to an open file.
#include
unsigned long write_f(
unsigned long fid, /* file identifier */
void *buffer, /* output buffer */
unsigned long bcount /* output byte count */
)
Volume Types
Description
Arguments
Return Value
All volume types except CD-ROM.
write_f() writes data into a file. It begins at the current position of the
connection's L_ptr.
After write_f(), the file's L_ptr is updated to point to the byte after the last byte
written.
This call overwrites the original content of the file. If necessary, write_f() expands
the file by allocating space to hold the written data.
fid Specifies the file identifier associated with the file.
buffer Points to the data to write.
bcount Specifies the number of bytes to write.
This system call returns 0 on success or an error code on failure.
2-142 pSOSystem System Calls