BSD 4_4 development

[unix-history] / usr / share / man / cat3 / daemon.0

DAEMON(3)                   BSD Programmer's Manual                  DAEMON(3)

N\bNA\bAM\bME\bE
     d\bda\bae\bem\bmo\bon\bn - run in the background

S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS
     d\bda\bae\bem\bmo\bon\bn(_\bi_\bn_\bt _\bn_\bo_\bc_\bh_\bd_\bi_\br, _\bi_\bn_\bt _\bn_\bo_\bc_\bl_\bo_\bs_\be);

D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN
     The d\bda\bae\bem\bmo\bon\bn() function is for programs wishing to detach themselves from
     the controlling terminal and run in the background as system daemons.

     Unless the argument _\bn_\bo_\bc_\bh_\bd_\bi_\br is non-zero, d\bda\bae\bem\bmo\bon\bn() changes the current
     working directory to the root (``/'').

     Unless the argument _\bn_\bo_\bc_\bl_\bo_\bs_\be is non-zero, d\bda\bae\bem\bmo\bon\bn() will redirect standard
     input, standard output and standard error to ``/dev/null''.

E\bER\bRR\bRO\bOR\bRS\bS
     The function d\bda\bae\bem\bmo\bon\bn() may fail and set _\be_\br_\br_\bn_\bo for any of the errors speci-
     fied for the library functions fork(2) and setsid(2).

S\bSE\bEE\bE A\bAL\bLS\bSO\bO
     setsid(2)

H\bHI\bIS\bST\bTO\bOR\bRY\bY
     The d\bda\bae\bem\bmo\bon\bn() function first appeared in 4.4BSD.

4.4BSD                           June 9, 1993                                1