Hi,

Is there a UNIX C system command that will let me copy a file?
I am looking for something similar to "cp" that can be called within a
C program.
I know of the "link" system call but this command will set a the
second file as a link to the first file rather than an independent
copy of the first file.
(Windows has the CopyFile command but I didn't find anything that
would work under UNIX)

I am also looking for C commands to move files. Is the C system call
"rename" equivalent to Window's specific MoveFileEx function?

Thanks,
Avner Moshkovitz
Research Analyst
Email: amoshkov@mda.ca

Avi wrote:

comp.unix.programmer would be a better place for these questions. The
only standard C way would be to use the system() function to invoke the
appropriate commands.

Avi said:

#include

#define COPYFILE_OK 0
#define COPYFILE_READ_ERROR 1
#define COPYFILE_WRITE_ERROR 2
#define COPYFILE_OUTCLOSE_ERROR 4
#define COPYFILE_OUTOPEN_ERROR 8
#define COPYFILE_INCLOSE_ERROR 16
#define COPYFILE_INOPEN_ERROR 32

Avi wrote:

So write them. They are very simple. For example, to copy a file:

/* first open the files in the calling function */
void fcopy(FILE *fromf, FILE *destf) {
int ch;

while (EOF != (ch = getc(fromf))) putc(ch, destf);
} /* untested */
/* now close both files */