01-19-2006
open cmd
if((LogFile=open(TempStr,O_CREAT|O_WRONLY|O_APPEND,0666))==-1)
return(1);
could someone explain me what the open() does here
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LEARN ABOUT OPENSOLARIS
creat
creat(2) System Calls creat(2)
NAME
creat - create a new file or rewrite an existing one
SYNOPSIS
#include <sys/stat.h>
#include <fcntl.h>
int creat(const char *path, mode_t mode);
DESCRIPTION
The function call
creat(path, mode)
is equivalent to:
open(path, O_WRONLY | O_CREAT | O_TRUNC, mode)
RETURN VALUES
Refer to open(2).
ERRORS
Refer to open(2).
EXAMPLES
Example 1 Creating a File
The following example creates the file /tmp/file with read and write permissions for the file owner and read permission for group and oth-
ers. The resulting file descriptor is assigned to the fd variable.
#include <fcntl.h>
...
int fd;
mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
char *filename = "/tmp/file";
...
fd = creat(filename, mode);
...
USAGE
The creat() function has a transitional interface for 64-bit file offsets. See lf64(5).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |Async-Signal-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
open(2), attributes(5), largefile(5), lf64(5), standards(5)
SunOS 5.11 25 Mar 2002 creat(2)