efault bad address

Article reproduced from: http://www.isongzi.com/2009/03/26/socket-bad-address/ I don't understand why I have bad address errors when I read the socket buffer. The send-side write return value is normal, and the receiving end read returns 0 and

UDP socket: read error bad address When writing to the UDP server, this error occurs when the socket is called for reading. You can see the corresponding error code efault through errno. h: Bad address (posix.1: It happen if the

Common Linux C functions-Signal Processing-general Linux technology-Linux programming and kernel information. For more information, see the following section. Alarm) Related functions: signal, sleep Header file # include Define the function

Ifndef _i386_errno_h#define _i386_errno_h#define EPERM 1/* Operation not permitted * *#define ENOENT 2/* No such file or directory */#define ESRCH 3/* No such process * *#define EINTR 4/* Interrupted system call * *#define EIO 5 */I/O error *

Linux using IIC Bus Read and write I2C from device registers by Handavei @ Jilin Normal University handawei@jusontech.com reproduced please be sure to indicate the source ******************* ******* 2012.7.16 1, this paper gives the implementation

The errno definition in Linux. In the header file # include 124 emediumtype wrong medium type 123 enomedium no medium found 122 edquot Disk Quota exceeded 121 eremoteio remote I/O Error 120 eisnam is a named type file 119 enavail no XENIX

124 emediumtype wrong medium type 123 enomedium no medium found 122 edquot Disk Quota exceeded 121 eremoteio remote I/O Error 120 eisnam is a named type file 119 enavail no XENIX semaphores available 118 enotnam not a xenix named type file 117

When there is an exception to the C API function in Linux, generally will errno variable (need include errno.h) to assign an integer value, different values to represent different meanings, you can see the value of the reason for the error, in the

Transferred from: http://baike.baidu.com/link?url=uX-q7K-TTL-5AFNT-hjhAP6fvgAwvsNkIMqJqJ3GEspYgtQXsovEEzpqmQ3ZmAgql2uG3LluUetAp8uKTm3z5qErrno is the last error code for the recording system. The code is a value of type int, defined in

A problem has recently been encountered when opening a file with Filp_open, and when opening a file that does not exist, the Filp_open return value is 0xFFFFFFFE instead of 0 (NULL), because the kernel handles the function that returns the pointer