Pedigree

h1. POSIX

This page has been created as a quick reference for Pedigree's POSIX subsystem's compliancy. If a function is not here, it can be assumed to not exist.

This list does not include standard C library functions (eg, malloc) which are provided by newlib.

h2. Statistics

Total POSIX Functions: 273

Total Implemented: 168

Total Not Implemented: 107

h2. The List

The following list is sorted in such a way that implemented functions are above unimplemented functions, and then sorted in ascending alphabetical order.

| *Function* | *Implemented?* | *Notes* |

| _execve | yes | none |

| _exit | yes | none |

| _isatty | yes | none |

| accept | yes | always blocks |

| access | yes | only checks for file existence: never checks permissions |

| alarm | yes | none |

| basename | yes | essentially strchr, which is fairly ugly |

| bind | yes | will not have expected result on non-listen sockets |

| chdir | yes | none |

| chmod | yes | allows any change regardless of user privilege |

| chown | yes | allows any change regardless of user privilege |

| clock_gettime | yes | none |

| close | yes | none |

| closedir | yes | none |

| closelog | yes | none |

| connect | yes | none |

| dlclose | yes | technically a stub |

| dlopen | yes | none |

| dlsym | yes | none |

| dup | yes | none |

| dup2 | yes | none |

| endpwent | yes | none |

| err | yes | format string issues |

| fchdir | yes | none |

| fchmod | yes | see chmod |

| fchown | yes | see chown |

| fcntl | yes | partially implemented - no record locking commands |

| fork | yes | none |

| fpurge | yes | none |

| freeaddrinfo | yes | none |

| fseek | yes | none |

| fstat | yes | does not set errno on failure |

| fstatvfs | yes | doesn't use information from the filesystem |

| ftruncate | yes | none |

| gai_strerror | yes | none |

| getaddrinfo | yes | should be moved into the kernel somewhat |

| getcwd | yes | none |

| getdelim | yes | none |

| getdtablesize | yes | just calls getrlimit for NOFILE |

| getegid | yes | none |

| geteuid | yes | none |

| getgid | yes | none |

| getgrname | yes | completely hacked to only return “httpd” for Apache |

| getgroups | yes | only returns getgid() in first element |

| gethostbyaddr | yes | none |

| gethostbyname | yes | none |

| gethostname | yes | none |

| getline | yes | none |

| getpagesize | yes | none |

| getpgrp | yes | none |

| getpid | yes | none |

| getprotobyname | yes | just tcp, udp and icmp |

| getpwent | yes | none |

| getpwnam | yes | none |

| getpwuid | yes | none |

| getservbyname | yes | none |

| getservbyport | yes | none |

| getsockname | yes | returns an empty structure |

| gettimeofday | yes | none |

| getuid | yes | none |

| herror | yes | none |

| hstrerror | yes | none |

| htonl | yes | none |

| htons | yes | none |

| inet_addr | yes | none |

| inet_aton | yes | calls inet_addr directly |

| inet_ntoa | yes | wrapper around sprintf, so potentially exploitable |

| ioctl | yes | only implements two commands |

| kill | yes | none |

| listen | yes | none |

| lseek | yes | conditions EOVERFLOW EINVAL and ESPIPE not checked |

| lstat | yes | currently synonymous to stat even when working on a symlink |

| mkdir | yes | does not set errno on failure (Filesystem::createDirectory *should* but no current implementations do) |

| mmap | yes | some inputs are exploitable, others do not work |

| munmap | yes | some areas are not unmappable |

| nanosleep | yes | none |

| ntohl | yes | none |

| ntohs | yes | none |

| open | yes | none |

| opendir | yes | none |

| openlog | yes | none |

| pipe | yes | none |

| poll | yes | none |

| pthread_atfork | yes | none |

| pthread_attr_destroy | yes | none |

| pthread_attr_getdetachstate | yes | none |

| pthread_attr_getstacksize | yes | none |

| pthread_attr_init | yes | none |

| pthread_attr_setdetachstate | yes | none |

| pthread_attr_setstacksize | yes | none |

| pthread_create | yes | none |

| pthread_detach | yes | none |

| pthread_equal | yes | none |

| pthread_exit | yes | none |

| pthread_getspecific | yes | none |

| pthread_join | yes | none |

| pthread_key_create | yes | none |

| pthread_key_delete | yes | none |

| pthread_key_destructor | yes | none |

| pthread_kill | yes | none |

| pthread_mutex_destroy | yes | none |

| pthread_mutex_init | yes | none |

| pthread_mutex_lock | yes | none |

| pthread_mutex_trylock | yes | none |

| pthread_mutex_unlock | yes | none |

| pthread_once | yes | none |

| pthread_self | yes | none |

| pthread_setspecific | yes | none |

| pthread_sigmask | yes | none |

| pthread_spin_destroy | yes | none |

| pthread_spin_init | yes | none |

| pthread_spin_lock | yes | none |

| pthread_spin_trylock | yes | none |

| pthread_spin_unlock | yes | none |

| raise | yes | none |

| read | yes | none |

| readdir | yes | none |

| readlink | yes | none |

| readv | yes | none |

| realpath | yes | copies the first argument into the second argument – not properly implemented. |

| recv | yes | see send |

| recvfrom | yes | TCP pretends :) |

| rename | yes | implemented as a complete read of the old file, and a write into the new file – horrible. |

| rewinddir | yes | none |

| sbrk | yes | none |

| sched_yield | yes | none |

| select | yes | uncertain about errorfds handling |

| sem_close | yes | badly implemented |

| sem_destroy | yes | badly implemented |

| sem_getvalue | yes | badly implemented |

| sem_init | yes | badly implemented |

| sem_post | yes | badly implemented |

| sem_timedwait | yes | badly implemented |

| sem_trywait | yes | badly implemented |

| sem_wait | yes | badly implemented |

| send | yes | errno not set if the connection is reset |

| sendto | yes | TCP sendto will still send to the connected address not the passed address |

| setegid | yes | see setgid |

| seteuid | yes | see setuid |

| setgid | yes | hardly spec-compliant: zero permission checks |

| sethostname | yes | none |

| setlogmask | yes | none |

| setpgid | yes | none |

| setpwent | yes | none |

| setsid | yes | none |

| setuid | yes | hardly spec-compliant: zero permission checks |

| shutdown | yes | none |

| sigaction | yes | none |

| sigaltstack | yes | none |

| signal | yes | none |

| sleep | yes | none |

| socket | yes | handles only PF_INET and PF_SOCKET for domain |

| stat | yes | none |

| statvfs | yes | doesn't get information from the filesystem |

| strsignal | yes | none |

| symlink | yes | none |

| sysconf | yes | a lot of entries just return -1 |

| syslog | yes | none |

| tcgetattr | yes | only supports 4 flags |

| tcsetattr | yes | see tcgetattr |

| uname | yes | not from a syscall |

| unlink | yes | does not set errno on failure |

| usleep | yes | none |

| vfork | yes | essentially just a call to fork() |

| wait | yes | none |

| waitpid | yes | doesn't handle groups (but that's fine) |

| write | yes | none |

| writev | yes | none |

| cfgetispeed | no | stubbed |

| cfgetospeed | no | stubbed |

| cfsetispeed | no | stubbed |

| cfsetospeed | no | stubbed |

| chroot | no | stubbed |

| dlerror | no | stubbed |

| endfsent | no | stubbed |

| endgrent | no | stubbed |

| endprotoent | no | stubbed |

| endservent | no | stubbed |

| fdatasync | no | stubbed |

| forkpty | no | stubbed |

| fpathconf | no | see pathconf |

| fstatfs | no | stubbed |

| fsync | no | stubbed |

| ftime | no | stubbed |

| getfsent | no | stubbed |

| getfsfile | no | stubbed |

| getfsspec | no | stubbed |

| getgrent | no | stubbed |

| getgrgid | no | stubbed |

| getgrgid_r | no | stubbed |

| getgrname_r | no | stubbed |

| getitimer | no | stubbed |

| getmntinfo | no | stubbed |

| getnameinfo | no | stubbed |

| getpeername | no | stubbed |

| getppid | no | stubbed |

| getprotobynumber | no | stubbed |

| getprotoent | no | stubbed |

| getpwnam_r | no | stubbed |

| getpwuid_r | no | stubbed |

| getrlimit | no | stubbed |

| getrusage | no | stubbed |

| getservent | no | stubbed |

| getsockopt | no | stubbed |

| grantpt | no | stubbed |

| if_freenameindex | no | stubbed |

| if_indextoname | no | stubbed |

| if_nameindex | no | stubbed |

| if_nametoindex | no | stubbed |

| inet_ntop | no | stubbed |

| inet_pton | no | stubbed |

| initgroups | no | stubbed |

| link | no | stubbed |

| logwtmp | no | stubbed |

| makedev | no | stubbed |

| mkdtemp | no | stubbed |

| mkfifo | no | stubbed |

| mknod | no | stubbed |

| mprotect | no | none |

| pathconf | no | stubbed |

| pause | no | stubbed |

| pclose | no | stubbed |

| popen | no | stubbed |

| pthread_attr_getschedparam | no | returns 0 |

| pthread_attr_setschedparam | no | returns 0 |

| pthread_cancel | no | stubbed |

| pthread_cond_broadcast | no | stubbed |

| pthread_cond_destroy | no | stubbed |

| pthread_cond_init | no | stubbed |

| pthread_cond_signal | no | stubbed |

| pthread_cond_timedwait | no | stubbed |

| pthread_cond_wait | no | stubbed |

| pthread_condattr_init | no | stubbed |

| pthread_mutexattr_destroy | no | returns 0 |

| pthread_mutexattr_init | no | returns 0 |

| ptsname | no | stubbed |

| pututline | no | stubbed |

| recvmsg | no | stubbed |

| rmdir | no | stubbed |

| sem_open | no | stubbed |

| sem_unlink | no | stubbed |

| sendmsg | no | stubbed |

| setfsent | no | stubbed |

| setgrent | no | stubbed |

| setgroups | no | stubbed |

| setitimer | no | stubbed |

| setprotoent | no | stubbed |

| setresgid | no | stubbed |

| setresuid | no | stubbed |

| setreuid | no | stubbed |

| setrlimit | no | stubbed |

| setsockopt | no | stubbed |

| sigblock | no | stubbed |

| siggetmask | no | stubbed |

| siglongjmp | no | stubbed |

| sigmask | no | stubbed |

| sigpending | no | stubbed |

| sigprocmask | no | stubbed |

| sigsetjmp | no | stubbed |

| sigsetmask | no | stubbed |

| sigsuspend | no | stubbed |

| sockatmark | no | stubbed |

| socketpair | no | stubbed |

| statfs | no | stubbed |

| sync | no | stubbed |

| tcdrain | no | stubbed |

| tcflow | no | always returns zero |

| tcflush | no | always returns zero |

| tcgetpgrp | no | stubbed |

| tcsendbreak | no | stubbed |

| timegm | no | stubbed |

| times OR getrusage | no | stubbed |

| umask | no | stubbed always returns zero |

| unlockpt | no | stubbed |

| utime | no | stubbed |