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sysarch(2) -- architecture-dependent system call
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sysarch() performs the architecture-dependent function specified by number with the arguments specified by the args pointer. args is a pointer to a structure defining the actual arguments of the funct... |
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syscall(2) -- indirect system call
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syscall() performs the system call whose assembly language interface has the specified number with the specified arguments. Symbolic constants for system calls can be found in the header file |
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truncate(2) -- truncate or extend a file to a specified length
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truncate() causes the file named by path or referenced by fd to be truncated or extended to length bytes in size. If the file was larger than this size, the extra data is lost. If the file was smaller... |
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umask(2) -- set file creation mode mask
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The umask() routine sets the process's file mode creation mask to numask and returns the previous value of the mask. The 9 low-order access permission bits of numask are used by system calls, includi... |
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unlink(2) -- remove directory entry
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The unlink() function removes the link named by path from its directory and decrements the link count of the file which was referenced by the link. If that decrement reduces the link count of the file... |
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alpha/unmap_memory(2) -- Alpha devices I/O ports and memory access functions
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The functions in libalpha give userland programs access to the I/O ports on the OpenBSD/alpha platform. The in*() functions return data read from the specified I/O port. The out*() functions write dat... |
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unmount(2) -- mount or dismount a filesystem
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The mount() function grafts a filesystem object onto the system file tree at the point dir. The argument data describes the filesystem object to be mounted. The argument type tells the kernel how to i... |
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utimes(2) -- set file access and modification times
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The access and modification times of the file named by path or referenced by fd are changed as specified by the argument times. If times is NULL, the access and modification times are set to the curre... |
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vfork(2) -- spawn new process and block parent
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vfork() was originally used to create new processes without fully copying the address space of the old process, which is horrendously inefficient in a paged environment. It was useful when the purpose... |
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wait(2) -- wait for process termination
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The wait() function suspends execution of its calling process until status information is available for a terminated child process, or a signal is received. On return from a successful wait() call, th... |
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wait3(2) -- wait for process termination
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The wait() function suspends execution of its calling process until status information is available for a terminated child process, or a signal is received. On return from a successful wait() call, th... |
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wait4(2) -- wait for process termination
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The wait() function suspends execution of its calling process until status information is available for a terminated child process, or a signal is received. On return from a successful wait() call, th... |
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waitpid(2) -- wait for process termination
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The wait() function suspends execution of its calling process until status information is available for a terminated child process, or a signal is received. On return from a successful wait() call, th... |
