* perror.c
#include <stdio.h>
#if !defined(__GNUC__)
extern int errno;
extern char *sys_errlist[];
#endif
int atoi(const char *s) {
int d = 0;
const char *p = s;
for (; '\0' != *p; p++) {
d *= 10;
d += *p - 48;
}
return d;
}
int main(int argc, char *argv[])
{
int no = 0;
if (argc < 2) {
for (no = 1; no < 128; no++) {
fprintf(stdout, "OS error code \033[31m%3d\033[0m: \033[34m%s\033[0m\n",
no, sys_errlist[no]);
}
return 0;
}
no = atoi(argv[1]);
fprintf(stdout, "%3d: %s\r\n", no, sys_errlist[no]);
return 0;
}
ubuntu@VM-4-17-ubuntu:~$ alias cc=gcc
ubuntu@VM-4-17-ubuntu:~$ cc -g -c perror.c -o perror.o && cc perror.o -o perror
perror.o: In function `main':
/home/ubuntu/perror.c:24: warning: `sys_errlist' is deprecated; use `strerror' or `strerror_r' instead
ubuntu@VM-4-17-ubuntu:~$ ./perror 6
6: No such device or address
ubuntu@VM-4-17-ubuntu:~$ sudo cp perror /usr/local/bin/perror
# 把命令行工具copy到bin目录下
ubuntu@VM-4-17-ubuntu:~$ perror 3
ubuntu@VM-4-17-ubuntu:~$
3: No such process
linux环境在stdio.h 中已经定义了sys_errlist, 不能重复定义。对于操作系统条件编译,参考:
/*
The operating system, must be one of: (Q_OS_x)
DARWIN - Darwin OS (synonym for Q_OS_MAC)
SYMBIAN - Symbian
MSDOS - MS-DOS and Windows
OS2 - OS/2
OS2EMX - XFree86 on OS/2 (not PM)
WIN32 - Win32 (Windows 2000/XP/Vista/7 and Windows Server 2003/2008)
WINCE - WinCE (Windows CE 5.0)
CYGWIN - Cygwin
SOLARIS - Sun Solaris
HPUX - HP-UX
ULTRIX - DEC Ultrix
LINUX - Linux
FREEBSD - FreeBSD
NETBSD - NetBSD
OPENBSD - OpenBSD
BSDI - BSD/OS
IRIX - SGI Irix
OSF - HP Tru64 UNIX
SCO - SCO OpenServer 5
UNIXWARE - UnixWare 7, Open UNIX 8
AIX - AIX
HURD - GNU Hurd
DGUX - DG/UX
RELIANT - Reliant UNIX
DYNIX - DYNIX/ptx
QNX - QNX
LYNX - LynxOS
BSD4 - Any BSD 4.4 system
UNIX - Any UNIX BSD/SYSV system
*/
#if defined(__APPLE__) && (defined(__GNUC__) || defined(__xlC__) || defined(__xlc__))
# define Q_OS_DARWIN
# define Q_OS_BSD4
# ifdef __LP64__
# define Q_OS_DARWIN64
# else
# define Q_OS_DARWIN32
# endif
#elif defined(__SYMBIAN32__) || defined(SYMBIAN)
# define Q_OS_SYMBIAN
# define Q_NO_POSIX_SIGNALS
# define QT_NO_GETIFADDRS
#elif defined(__CYGWIN__)
# define Q_OS_CYGWIN
#elif defined(MSDOS) || defined(_MSDOS)
# define Q_OS_MSDOS
#elif defined(__OS2__)
# if defined(__EMX__)
# define Q_OS_OS2EMX
# else
# define Q_OS_OS2
# endif
#elif !defined(SAG_COM) && (defined(WIN64) || defined(_WIN64) || defined(__WIN64__))
# define Q_OS_WIN32
# define Q_OS_WIN64
#elif !defined(SAG_COM) && (defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__))
# if defined(WINCE) || defined(_WIN32_WCE)
# define Q_OS_WINCE
# else
# define Q_OS_WIN32
# endif
#elif defined(__MWERKS__) && defined(__INTEL__)
# define Q_OS_WIN32
#elif defined(__sun) || defined(sun)
# define Q_OS_SOLARIS
#elif defined(hpux) || defined(__hpux)
# define Q_OS_HPUX
#elif defined(__ultrix) || defined(ultrix)
# define Q_OS_ULTRIX
#elif defined(sinix)
# define Q_OS_RELIANT
#elif defined(__native_client__)
# define Q_OS_NACL
#elif defined(__linux__) || defined(__linux)
# define Q_OS_LINUX
#elif defined(__FreeBSD__) || defined(__DragonFly__)
# define Q_OS_FREEBSD
# define Q_OS_BSD4
#elif defined(__NetBSD__)
# define Q_OS_NETBSD
# define Q_OS_BSD4
#elif defined(__OpenBSD__)
# define Q_OS_OPENBSD
# define Q_OS_BSD4
#elif defined(__bsdi__)
# define Q_OS_BSDI
# define Q_OS_BSD4
#elif defined(__sgi)
# define Q_OS_IRIX
#elif defined(__osf__)
# define Q_OS_OSF
#elif defined(_AIX)
# define Q_OS_AIX
#elif defined(__Lynx__)
# define Q_OS_LYNX
#elif defined(__GNU__)
# define Q_OS_HURD
#elif defined(__DGUX__)
# define Q_OS_DGUX
#elif defined(__QNXNTO__)
# define Q_OS_QNX
#elif defined(_SEQUENT_)
# define Q_OS_DYNIX
#elif defined(_SCO_DS) /* SCO OpenServer 5 + GCC */
# define Q_OS_SCO
#elif defined(__USLC__) /* all SCO platforms + UDK or OUDK */
# define Q_OS_UNIXWARE
#elif defined(__svr4__) && defined(i386) /* Open UNIX 8 + GCC */
# define Q_OS_UNIXWARE
#elif defined(__INTEGRITY)
# define Q_OS_INTEGRITY
#elif defined(VXWORKS) /* there is no "real" VxWorks define - this has to be set in the mkspec! */
# define Q_OS_VXWORKS
#elif defined(__MAKEDEPEND__)
#else
# error "Qt has not been ported to this OS - talk to qt-bugs@trolltech.com"
#endif
#if defined(Q_OS_WIN32) || defined(Q_OS_WIN64) || defined(Q_OS_WINCE)
# define Q_OS_WIN
#endif
#if defined(Q_OS_DARWIN)
# define Q_OS_MAC /* Q_OS_MAC is mostly for compatibility, but also more clear */
# define Q_OS_MACX /* Q_OS_MACX is only for compatibility.*/
# if defined(Q_OS_DARWIN64)
# define Q_OS_MAC64
# elif defined(Q_OS_DARWIN32)
# define Q_OS_MAC32
# endif
#endif
OS error code 1: Operation not permitted
OS error code 2: No such file or directory
OS error code 3: No such process
OS error code 4: Interrupted system call
OS error code 5: Input/output error
OS error code 6: No such device or address
OS error code 7: Argument list too long
OS error code 8: Exec format error
OS error code 9: Bad file descriptor
OS error code 10: No child processes
OS error code 11: Resource temporarily unavailable
OS error code 12: Cannot allocate memory
OS error code 13: Permission denied
OS error code 14: Bad address
OS error code 15: Block device required
OS error code 16: Device or resource busy
OS error code 17: File exists
OS error code 18: Invalid cross-device link
OS error code 19: No such device
OS error code 20: Not a directory
OS error code 21: Is a directory
OS error code 22: Invalid argument
OS error code 23: Too many open files in system
OS error code 24: Too many open files
OS error code 25: Inappropriate ioctl for device
OS error code 26: Text file busy
OS error code 27: File too large
OS error code 28: No space left on device
OS error code 29: Illegal seek
OS error code 30: Read-only file system
OS error code 31: Too many links
OS error code 32: Broken pipe
OS error code 33: Numerical argument out of domain
OS error code 34: Numerical result out of range
OS error code 35: Resource deadlock avoided
OS error code 36: File name too long
OS error code 37: No locks available
OS error code 38: Function not implemented
OS error code 39: Directory not empty
OS error code 40: Too many levels of symbolic links
OS error code 42: No message of desired type
OS error code 43: Identifier removed
OS error code 44: Channel number out of range
OS error code 45: Level 2 not synchronized
OS error code 46: Level 3 halted
OS error code 47: Level 3 reset
OS error code 48: Link number out of range
OS error code 49: Protocol driver not attached
OS error code 50: No CSI structure available
OS error code 51: Level 2 halted
OS error code 52: Invalid exchange
OS error code 53: Invalid request descriptor
OS error code 54: Exchange full
OS error code 55: No anode
OS error code 56: Invalid request code
OS error code 57: Invalid slot
OS error code 59: Bad font file format
OS error code 60: Device not a stream
OS error code 61: No data available
OS error code 62: Timer expired
OS error code 63: Out of streams resources
OS error code 64: Machine is not on the network
OS error code 65: Package not installed
OS error code 66: Object is remote
OS error code 67: Link has been severed
OS error code 68: Advertise error
OS error code 69: Srmount error
OS error code 70: Communication error on send
OS error code 71: Protocol error
OS error code 72: Multihop attempted
OS error code 73: RFS specific error
OS error code 74: Bad message
OS error code 75: Value too large for defined data type
OS error code 76: Name not unique on network
OS error code 77: File descriptor in bad state
OS error code 78: Remote address changed
OS error code 79: Can not access a needed shared library
OS error code 80: Accessing a corrupted shared library
OS error code 81: .lib section in a.out corrupted
OS error code 82: Attempting to link in too many shared libraries
OS error code 83: Cannot exec a shared library directly
OS error code 84: Invalid or incomplete multibyte or wide character
OS error code 85: Interrupted system call should be restarted
OS error code 86: Streams pipe error
OS error code 87: Too many users
OS error code 88: Socket operation on non-socket
OS error code 89: Destination address required
OS error code 90: Message too long
OS error code 91: Protocol wrong type for socket
OS error code 92: Protocol not available
OS error code 93: Protocol not supported
OS error code 94: Socket type not supported
OS error code 95: Operation not supported
OS error code 96: Protocol family not supported
OS error code 97: Address family not supported by protocol
OS error code 98: Address already in use
OS error code 99: Cannot assign requested address
OS error code 100: Network is down
OS error code 101: Network is unreachable
OS error code 102: Network dropped connection on reset
OS error code 103: Software caused connection abort
OS error code 104: Connection reset by peer
OS error code 105: No buffer space available
OS error code 106: Transport endpoint is already connected
OS error code 107: Transport endpoint is not connected
OS error code 108: Cannot send after transport endpoint shutdown
OS error code 109: Too many references: cannot splice
OS error code 110: Connection timed out
OS error code 111: Connection refused
OS error code 112: Host is down
OS error code 113: No route to host
OS error code 114: Operation already in progress
OS error code 115: Operation now in progress
OS error code 116: Stale file handle
OS error code 117: Structure needs cleaning
OS error code 118: Not a XENIX named type file
OS error code 119: No XENIX semaphores available
OS error code 120: Is a named type file
MySQL error code 120: Didn't find key on read or update
OS error code 121: Remote I/O error
MySQL error code 121: Duplicate key on write or update
OS error code 122: Disk quota exceeded
MySQL error code 122: Internal (unspecified) error in handler
OS error code 123: No medium found
MySQL error code 123: Someone has changed the row since it was read (while the table was locked to prevent it)
OS error code 124: Wrong medium type
MySQL error code 124: Wrong index given to function
OS error code 125: Operation canceled
MySQL error code 125: Undefined handler error 125
OS error code 126: Required key not available
MySQL error code 126: Index file is crashed
OS error code 127: Key has expired
MySQL error code 127: Record file is crashed
OS error code 128: Key has been revoked
MySQL error code 128: Out of memory in engine
OS error code 129: Key was rejected by service
MySQL error code 129: Undefined handler error 129
OS error code 130: Owner died
MySQL error code 130: Incorrect file format
OS error code 131: State not recoverable
MySQL error code 131: Command not supported by database
OS error code 132: Operation not possible due to RF-kill
MySQL error code 132: Old database file
OS error code 133: Memory page has hardware error
MySQL error code 133: No record read before update
MySQL error code 134: Record was already deleted (or record file crashed)
MySQL error code 135: No more room in record file
MySQL error code 136: No more room in index file
MySQL error code 137: No more records (read after end of file)
MySQL error code 138: Unsupported extension used for table
MySQL error code 139: Too big row
MySQL error code 140: Wrong create options
MySQL error code 141: Duplicate unique key or constraint on write or update
MySQL error code 142: Unknown character set used in table
MySQL error code 143: Conflicting table definitions in sub-tables of MERGE table
MySQL error code 144: Table is crashed and last repair failed
MySQL error code 145: Table was marked as crashed and should be repaired
MySQL error code 146: Lock timed out; Retry transaction
MySQL error code 147: Lock table is full; Restart program with a larger locktable
MySQL error code 148: Updates are not allowed under a read only transactions
MySQL error code 149: Lock deadlock; Retry transaction
MySQL error code 150: Foreign key constraint is incorrectly formed
MySQL error code 151: Cannot add a child row
MySQL error code 152: Cannot delete a parent row
MySQL error code 153: No savepoint with that name
MySQL error code 154: Non unique key block size
MySQL error code 155: The table does not exist in engine
MySQL error code 156: The table already existed in storage engine
MySQL error code 157: Could not connect to storage engine
MySQL error code 158: Unexpected null pointer found when using spatial index
MySQL error code 159: The table changed in storage engine
MySQL error code 160: There's no partition in table for the given value
MySQL error code 161: Row-based binlogging of row failed
MySQL error code 162: Index needed in foreign key constraint
MySQL error code 163: Upholding foreign key constraints would lead to a duplicate key error in some other table
MySQL error code 164: Table needs to be upgraded before it can be used
MySQL error code 165: Table is read only
MySQL error code 166: Failed to get next auto increment value
MySQL error code 167: Failed to set row auto increment value
MySQL error code 168: Unknown (generic) error from engine
MySQL error code 169: Record is the same
MySQL error code 170: It is not possible to log this statement
MySQL error code 171: The event was corrupt, leading to illegal data being read
MySQL error code 172: The table is of a new format not supported by this version
MySQL error code 173: The event could not be processed no other hanlder error happened
MySQL error code 174: Got a fatal error during initialzaction of handler
MySQL error code 175: File to short; Expected more data in file
MySQL error code 176: Read page with wrong checksum
MySQL error code 177: Too many active concurrent transactions
MySQL error code 178: Index column length exceeds limit
MySQL error code 179: Index corrupted
MySQL error code 180: Undo record too big
MySQL error code 181: Table is being used in foreign key check
/usr/include/asm-generic/errno-base.h
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_GENERIC_ERRNO_BASE_H
#define _ASM_GENERIC_ERRNO_BASE_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 */
#define ENXIO 6 /* No such device or address */
#define E2BIG 7 /* Argument list too long */
#define ENOEXEC 8 /* Exec format error */
#define EBADF 9 /* Bad file number */
#define ECHILD 10 /* No child processes */
#define EAGAIN 11 /* Try again */
#define ENOMEM 12 /* Out of memory */
#define EACCES 13 /* Permission denied */
#define EFAULT 14 /* Bad address */
#define ENOTBLK 15 /* Block device required */
#define EBUSY 16 /* Device or resource busy */
#define EEXIST 17 /* File exists */
#define EXDEV 18 /* Cross-device link */
#define ENODEV 19 /* No such device */
#define ENOTDIR 20 /* Not a directory */
#define EISDIR 21 /* Is a directory */
#define EINVAL 22 /* Invalid argument */
#define ENFILE 23 /* File table overflow */
#define EMFILE 24 /* Too many open files */
#define ENOTTY 25 /* Not a typewriter */
#define ETXTBSY 26 /* Text file busy */
#define EFBIG 27 /* File too large */
#define ENOSPC 28 /* No space left on device */
#define ESPIPE 29 /* Illegal seek */
#define EROFS 30 /* Read-only file system */
#define EMLINK 31 /* Too many links */
#define EPIPE 32 /* Broken pipe */
#define EDOM 33 /* Math argument out of domain of func */
#define ERANGE 34 /* Math result not representable */
#endif
error: 'struct msghdr' has no member named 'msg_accrights'