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Linux System Call Error Codes


The last is not mapped - maybe to avoid bugs related to wraparound.) We can read it: /* get vsyscall page */ #include #include int main() { char *p Can I stop this homebrewed Lucky Coin ability from being exploited? Typically a programming error causes this. #define ENOTBLK 15 /* Block device required */ Try to set disk quotas on something that isn't a block device and this is the error Macro: int ED The experienced user will know what is wrong. http://softacoustik.com/error-codes/linux-system-error-codes.php

share|improve this answer answered Feb 28 '11 at 7:09 Keith 5,0911521 I did not unmount the card before removing it. But it's not a good idea. –Gilles Feb 28 '11 at 21:22 | show 1 more comment up vote 1 down vote You may look into a little utility called errno. EALREADY The socket is non-blocking and a previous connection attempt has not yet been completed. BUGS Unconnecting a socket by calling connect() with a AF_UNSPEC address is not yet implemented. http://www-numi.fnal.gov/offline_software/srt_public_context/WebDocs/Errors/unix_system_errors.html

Linux Errno Example

In such cases, a successful return can be distinguished from an error return by setting errno to zero before the call, and then, if the call returns a status that indicates And __kernel_sigreturn and __kernel_rt_sigreturn do system calls 119 and 173, that is, sigreturn and rt_sigreturn, respectively. Macro: int EAFNOSUPPORT The address family specified for a socket is not supported; it is inconsistent with the protocol being used on the socket. Not the answer you're looking for?

Macro: int ENETDOWN A socket operation failed because the network was down. You can use it something like this: #include extern int errno; /* "universal" error number */if ((systemcall>)!=0) { perror("preamble"); /* generate error message w/preamble text */ exit(errno); /* exit & return Macro: int EOPNOTSUPP The operation you requested is not supported. Errno.h Windows Read more about Ramesh Natarajan and the blog.

However, it can also be returned for trying to open a non-existent IPC channel, or if one of the directories in a pathname does not exist. #define ESRCH 3 /* No Something else is that in some applications gettimeofday() is a done very often, for example for timestamping all transactions. Macro: int EDOM Domain error; used by mathematical functions when an argument value does not fall into the domain over which the function is defined. http://man7.org/linux/man-pages/man3/errno.3.html Macro: int ENXIO No such device or address.

Macro: int EBACKGROUND On GNU/Hurd systems, servers supporting the term protocol return this error for certain operations when the caller is not in the foreground process group of the terminal. Errno.h In C As Linus said: I'm a disgusting pig, and proud of it to boot. And __NR_umount, __NR_umount2 belonging to sys_oldumount, sys_umount, respectively. But it also can come from attempting to pass too much data to an IPC message queue, and from trying to do too many operations in a semop() (semaphore) call .

Posix Error Codes

Macro: int ENEEDAUTH ??? From this errno variable you can use some error handling functions to find out the error description and handle it appropriately. Linux Errno Example There may be other domain-specific error codes. Linux Errno To String ffffe43f: 90 nop ffffe440: b8 ad 00 00 00 mov $0xad,%eax ffffe445: cd 80 int $0x80 The interesting addresses here are found via % grep ffffe System.map ffffe000 A VSYSCALL_BASE ffffe400

Macro: int EADDRINUSE The requested socket address is already in use. this page The plock() function ( which locks areas of a process into memory) returns this if you attempt to use it twice on the same memory segment. Macro: int EGRATUITOUS This error code has no purpose. up vote 0 down vote favorite When I call the system(char* Command) with some command and it fails, I should like to know the error code (and not to parse text Errno.h Linux Kernel

Since the negative error returns are of the form -ESOMETHING, and the error numbers have small positive values, there is only a small negative error range. The article was very informative and was a great help. EADDRNOTAVAIL Non-existent interface was requested or the requested address was not local. get redirected here more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed

As I saw few standard error codes are located in arch/powerpc/boot/stdio.h and other scattered at various other places.. Efault Hosting by jambit GmbH. Macro: int ENOPROTOOPT You specified a socket option that doesn’t make sense for the particular protocol being used by the socket.

After select(2) indicates writability, use getsockopt(2) to read the SO_ERROR option at level SOL_SOCKET to determine whether connect() completed successfully (SO_ERROR is zero) or unsuccessfully (SO_ERROR is one of the usual

After I inserted/did file io/removed a SD combo card, I got following errors: mmcblk0: error -123 sending status command mmcblk0: error -123 sending read/write command, response 0x0, card status 0x0 mmcblk0: RETURN VALUE top The return value is defined by the system call being invoked. Macro: int EIEIO Go home and have a glass of warm, dairy-fresh milk. Ebadf And SYSENTER_RETURN pops the registers again and returns.

Looking at the associated kernel routines, we find that these are sys_getuid16 and sys_getuid, respectively. (Thus, sys_getuid does not have number __NR_getuid.) Looking at glibc, we find code somewhat like int In next execution, it throws an error number 17, which is "File already exist". See Limits on Resources, for details on the RLIMIT_NPROC limit. http://softacoustik.com/error-codes/linux-io-error-codes.php Interestingly, some Unixes don't have this at all: Unixware, for example returns different errors. #define EFBIG 27 /* File too large */ You've tried to extend a file byond the maximum

current community chat Unix & Linux Unix & Linux Meta your communities Sign up or log in to customize your list. Macro: int ENOENT No such file or directory. Since Linux 1.3.0 five parameters are supported (and the earlier select with memory block was renamed old_select), and since Linux 2.3.31 six parameters are supported (and the earlier mmap with memory This page was changed to have the structure of an ELF binary (called linux-vsyscall.so.1) in Linux 2.5.69.

Macro: int EIO Input/output error; usually used for physical read or write errors. If a reading process checks for this, and there isn't any, it get EINVAL. Name spelling on publications Why is JK Rowling considered 'bad at math'? You get this error when you try to transmit data over a connectionless socket, without first specifying a destination for the data with connect.

What to do when you've put your co-worker on spot by being impatient? A vsyscall is a "system" call that avoids crossing the userspace-kernel boundary. Macro: int ECHILD There are no child processes. Macro: int ENODEV The wrong type of device was given to a function that expects a particular sort of device.