author | Michael Krelin <hacker@klever.net> | 2011-03-20 02:19:04 (UTC) |
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committer | Michael Krelin <hacker@klever.net> | 2011-03-20 02:19:04 (UTC) |
commit | 16c80883ba6c8657bc6129fb9e2695eaf3d3c09b (patch) (side-by-side diff) | |
tree | 14861e99fe9522a2e33b076325815a46f415858f | |
parent | c457b6da4401d13c3d914f34b8a41a1711027dd2 (diff) | |
download | iii-16c80883ba6c8657bc6129fb9e2695eaf3d3c09b.zip iii-16c80883ba6c8657bc6129fb9e2695eaf3d3c09b.tar.gz iii-16c80883ba6c8657bc6129fb9e2695eaf3d3c09b.tar.bz2 |
don't double-fork
Signed-off-by: Michael Krelin <hacker@klever.net>
-rw-r--r-- | src/eyefiservice.cc | 29 |
1 files changed, 10 insertions, 19 deletions
diff --git a/src/eyefiservice.cc b/src/eyefiservice.cc index 0bf26c4..4ca2777 100644 --- a/src/eyefiservice.cc +++ b/src/eyefiservice.cc @@ -16,23 +16,14 @@ static bool detached_child() { pid_t p = fork(); - if(p<0) throw std::runtime_error("failed to fork()"); + if(p<0) { + syslog(LOG_ERR,"Failed to fork away for hook execution"); + _exit(-1); + } if(!p) { - p = fork(); - if(p<0) { - syslog(LOG_ERR,"Failed to re-fork child process"); - _exit(-1); - } - if(!p) { - setsid(); - for(int i=getdtablesize();i>=0;--i) close(i); - int i=open("/dev/null",O_RDWR); assert(i==0); - i = dup(i); assert(i==1); - i = dup(i); assert(i==2); - return true; - } - _exit(0); + setsid(); + for(int i=getdtablesize();i>=0;--i) close(i); + int i=open("/dev/null",O_RDWR); assert(i==0); + i = dup(i); assert(i==1); + i = dup(i); assert(i==2); + return true; } - int rc; - if(waitpid(p,&rc,0)<0) throw std::runtime_error("failed to waitpid()"); - if(!WIFEXITED(rc)) throw std::runtime_error("error in forked process"); - if(WEXITSTATUS(rc)) throw std::runtime_error("forked process signalled error"); return false; |