Cerrno

C의 errno.h 헤더.

종료 상태 코드(exit status code)

• Bash exit on error

bash의 에러 코드:

strerror

strerror를 통해 에러 번호(errno)와 에러 메세지 문자열을 얻을 수 있다. 아래처럼 테스트 해보니 c에서 errno 변수와 그에 맞는 메세지는 총 108개 내장되어 있는 것 같다.

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

int         main(void)
{
    int     errno = 0;
    char    *error_message;

    printf("< errno와 에러메세지 목록 >\n");
    for (errno = 0; errno < 108; errno++)
    {
        error_message = strerror(errno);
        printf("%d. %s\n", errno, error_message);
    }
    return (0);
}

• 0 - Undefined error: 0
• 1 - Operation not permitted
• 2 - No such file or directory
• 3 - No such process
• 4 - Interrupted system call
• 5 - Input/output error
• 6 - Device not configured
• 7 - Argument list too long
• 8 - Exec format error
• 9 - Bad file descriptor
• 10 - No child processes
• 11 - Resource deadlock avoided
• 12 - Cannot allocate memory
• 13 - Permission denied
• 14 - Bad address
• 15 - Block device required
• 16 - Resource busy
• 17 - File exists
• 18 - Cross-device link
• 19 - Operation not supported by 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 - Result too large
• 35 - Resource temporarily unavailable
• 36 - Operation now in progress
• 37 - Operation already in progress
• 38 - Socket operation on non-socket
• 39 - Destination address required
• 40 - Message too long
• 41 - Protocol wrong type for socket
• 42 - Protocol not available
• 43 - Protocol not supported
• 44 - Socket type not supported
• 45 - Operation not supported
• 46 - Protocol family not supported
• 47 - Address family not supported by protocol family
• 48 - Address already in use
• 49 - Can't assign requested address
• 50 - Network is down
• 51 - Network is unreachable
• 52 - Network dropped connection on reset
• 53 - Software caused connection abort
• 54 - Connection reset by peer
• 55 - No buffer space available
• 56 - Socket is already connected
• 57 - Socket is not connected
• 58 - Can't send after socket shutdown
• 59 - Too many references: can't splice
• 60 - Operation timed out
• 61 - Connection refused
• 62 - Too many levels of symbolic links
• 63 - File name too long
• 64 - Host is down
• 65 - No route to host
• 66 - Directory not empty
• 67 - Too many processes
• 68 - Too many users
• 69 - Disc quota exceeded
• 70 - Stale NFS file handle
• 71 - Too many levels of remote in path
• 72 - RPC struct is bad
• 73 - RPC version wrong
• 74 - RPC prog. not avail
• 75 - Program version wrong
• 76 - Bad procedure for program
• 77 - No locks available
• 78 - Function not implemented
• 79 - Inappropriate file type or format
• 80 - Authentication error
• 81 - Need authenticator
• 82 - Device power is off
• 83 - Device error
• 84 - Value too large to be stored in data type
• 85 - Bad executable (or shared library)
• 86 - Bad CPU type in executable
• 87 - Shared library version mismatch
• 88 - Malformed Mach-o file
• 89 - Operation canceled
• 90 - Identifier removed
• 91 - No message of desired type
• 92 - Illegal byte sequence
• 93 - Attribute not found
• 94 - Bad message
• 95 - EMULTIHOP (Reserved)
• 96 - No message available on STREAM
• 97 - ENOLINK (Reserved)
• 98 - No STREAM resources
• 99 - Not a STREAM
• 100 - Protocol error
• 101 - STREAM ioctl timeout
• 102 - Operation not supported on socket
• 103 - Policy not found
• 104 - State not recoverable
• 105 - Previous owner died
• 106 - Interface output queue is full
• 107 - Unknown error: 107

See also

• C/C++
• HTTP Status Code

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• (minishell) 4. 종료상태와 에러메세지 처리