Unix / Linux / 기본개념 / 에러처리 / errno 예약되있는 번호

errno 확인하기

아래의 코드를 찍은 결과. 즉 errno 은 아래와 같은 의미를 갖고있음

각 시스템마다 한번씩 찍어보면 좋을듯..

#include <string.h>
#include <stdio.h>
int main()
{
        int i;
        for(i=0;i<150;i++)
                printf("[%3d] %s\n",i,strerror(i));
        return 0;
}

실행결과

[  0] Success
[  1] Operation not permitted
[  2] No such file or directory
[  3] No such process
[  4] Interrupted system call
[  5] Input/output error
[  6] No such device or address
[  7] Argument list too long
[  8] Exec format error
[  9] Bad file descriptor
[ 10] No child processes
[ 11] Resource temporarily unavailable
[ 12] Cannot allocate memory
[ 13] Permission denied
[ 14] Bad address
[ 15] Block device required
[ 16] Device or resource busy
[ 17] File exists
[ 18] Invalid cross-device link
[ 19] No such device
[ 20] Not a directory
[ 21] Is a directory
[ 22] Invalid argument
[ 23] Too many open files in system
[ 24] Too many open files
[ 25] Inappropriate ioctl for device
[ 26] Text file busy
[ 27] File too large
[ 28] No space left on device
[ 29] Illegal seek
[ 30] Read-only file system
[ 31] Too many links
[ 32] Broken pipe
[ 33] Numerical argument out of domain
[ 34] Numerical result out of range
[ 35] Resource deadlock avoided
[ 36] File name too long
[ 37] No locks available
[ 38] Function not implemented
[ 39] Directory not empty
[ 40] Too many levels of symbolic links
[ 41] Unknown error 41
[ 42] No message of desired type
[ 43] Identifier removed
[ 44] Channel number out of range
[ 45] Level 2 not synchronized
[ 46] Level 3 halted
[ 47] Level 3 reset
[ 48] Link number out of range
[ 49] Protocol driver not attached
[ 50] No CSI structure available
[ 51] Level 2 halted
[ 52] Invalid exchange
[ 53] Invalid request descriptor
[ 54] Exchange full
[ 55] No anode
[ 56] Invalid request code
[ 57] Invalid slot
[ 58] Unknown error 58
[ 59] Bad font file format
[ 60] Device not a stream
[ 61] No data available