alloca | memory allocator |
bstring | bit and byte string operations |
dbm | data base subroutines |
dec2flt | convert decimal record to floatingpoint value |
econvert | output conversion |
floatingpnt | IEEE floating point definitions |
flt2dec | convert floating-point value to decimal record |
fopen | open a stream |
ftime | get date and time |
getdtblsz | get descriptor table size |
gethostid | get unique identifier of current host |
gethostname | get/set name of current host |
getpagesize | get system page size |
getpriority | get/set program scheduling priority |
getrusage | get information about resource utilization |
getusrshl | get legal user shells |
getwd | get current working directory pathname |
ieee_funcs | miscellaneous functions for IEEE arithmetic |
index | string operations |
killpg | send signal to a process group |
mctl | memory management control |
mkstemp | make a unique file name |
mp | multiple precision integer arithmetic |
ndbm | data base subroutines |
nice | change priority of a process |
nlist | get entries from symbol table |
printf | formatted output conversion |
psignal | system signal messages |
rand | simple random number generator |
random | better random number generator; routines for changing generators |
reboot | reboot system or halt processor |
regex | regular expression handler |
scandir | scan a directory |
setbuf | assign buffering to a stream |
setbuffer | assign buffering to a stream |
setjmp | non-local goto |
setregid | set real and effective group IDs |
setreuid | set real and effective user IDs |
sigblock | block signals |
sigfpe | signal handling for specific SIGFPE codes |
sigintrp | allow signals to interrupt system calls |
signal | simplified software signal facilities |
sigpause | automically release blocked signals and wait for interrupt |
sigsetmask | set current signal mask |
sigstack | set and/or get signal stack context |
sigvec | software signal facilities |
sleep | suspend execution for interval |
string | string operations |
syscall | indirect system call |
syslog | control system log |
times | get process times |
timezone | get time zone name given offset from GMT |
ualarm | schedule signal after interval in microseconds |
usleep | suspend execution for interval in microseconds |
utimes | set file times |
wait | wait for process to terminate or stop |