Linux errno Error Matrix

errno defined in <errno.h>, the error Exx macros are defined in the errno-base.h and errno.h below the/usr/include/asm-generic folder, respectively, defining the 1-34, 35-132 error definition.

The strerror () function returns an error description string based on the errno value, and the following program prints the comparison table:

#include <errno.h>

#include <string.h>

#include <stdio.h>

04.

05.int Main ()

06.{

i. int i;

for (i = 0; i < 140; ++i)

09. {

errno = i;

printf ("errno%d: \t\t%s\+n", I,strerror (errno));

12.}

return 0;

14.}

Error comparison table:

Errno0:success

Errno1:operation not permitted

Errno2:no such file or directory

Errno3:no such process

errno4:interrupted system Call

Errno5:input/output Error

Errno6:no such device or address

Errno7:argument list too long

Errno8:exec Format Error

Errno9:bad File Descriptor

Errno10:no Child Processes

Errno11:resource temporarily unavailable

Errno12:cannot Allocate Memory

Errno13:permission denied

Errno14:bad Address

Errno15:block Device required

Errno16:device or resource busy

Errno17:file exists

Errno18:invalid Cross-device Link

Errno19:no such device

Errno20:not a Directory

Errno21:is a Directory

Errno22:invalid argument

Errno23:too many open files in system

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