# POSIX C API

1.  [main.c](main.c)
1.  [strdup](strdup.c)
1.  [execl](execl.c)
1.  Environment variables
    1.  [environ](environ.c)
    1.  [setenv](setenv.c)
1.  [fork](fork.c)
    1. [Fork bomb](interactive/fork_bomb.c.off)
1.  [mmap](mmap.md)
    1.  [mmap](mmap.c)
    1.  [shm_open](shm_open.c)
    1.  [mmap private](mmap_private.c)
1.  [syslog](syslog.c)
1.  [dlopen](dlopen.c)
1.  [getrusage](dlopen.c)
1.  [pthread](pthread.md)
    1. [pthread_mutex](pthread_mutex.c)
    1. [pthread_tid](pthread_tid.c)
1.  [Regex](regex.c)
1.  File IO
    1. [write_read](write_read.c)
1.  Networking
    1.  [socket](socket/)
    1.  [netdb.h](netdb-h.md)
        1. [gethostbyname](gethostbyname.c)
        1. [gethostname](gethostname.c)
        1. [getservbyport](getservbyport.c)
1.  Signal
    1. [Kill](kill.c)
1.  [Biblography](bibliography.md)