请问setsid函数在AIX和SCO下有什么区别吗

unixsomeone

请问setsid函数在AIX和SCO下有什么区别吗，为什么我的程序在SCO5.0.7上面没问题，在AIX5上面跑，遇到setsid()就跳出了呢，报错是Not owner.

universes

同问！\r\n望高手解答！

yan13

setsid Subroutine\r\n\r\nPurpose\r\nCreates a session and sets the process group ID.\r\n\r\nLibrary\r\nStandard C Library (libc.a)\r\n\r\nSyntax\r\n\r\n#include <unistd.h>\r\n\r\npid_t setsid (void)\r\nDescription\r\nThe setsid subroutine creates a new session if the calling process is not a process group leader. Upon return, the calling process is the session leader of this new session, the process group leader of a new process group, and has no controlling terminal. The process group ID of the calling process is set equal to its process ID. The calling process is the only process in the new process group and the only process in the new session.\r\n\r\nReturn Values\r\nUpon successful completion, the value of the new process group ID is returned. Otherwise, (pid_t) -1 is returned and the errno global variable is set to indicate the error.\r\n\r\nError Codes\r\nThe setsid subroutine is unsuccessful if the following is true:\r\n\r\nEPERM The calling process is already a process group leader, or the process group ID of a process other than the calling process matches the process ID of the calling process.