About This Reference

The Library Reference documents the C functions included as part of the QNX Development Toolkit. Here are some links to help you find a function quickly:

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The Library Reference also contains:

Summary listings of the library
Summary of safety information
Descriptions of global data and the TZ environment variable
Descriptions of manifests
SOCKS -- A Basic Firewall
Third-Party Copyright Notices
Glossary

What's new in QNX 6.2

Significant changes:

New content
Deprecated content
Errata

New Content

addrinfo: TCP/IP address information
dircntl(): Control an open directory
freeaddrinfo(): Free an address information structure
freeifaddrs(): Free an address information structure
gai_strerror(): Return the getaddrinfo() error code
getaddrinfo(): Get address information
getdomainname(): Get the domain name of the current host
gethostbyname2(): Get a network host entry, given a name
getifaddrs(): Get a network interface address
hwi_find_item(): Find an item in the hwi_item structure
hwi_find_tag(): Find a tag in the hwi_item structure
hwi_off2tag(): Return a pointer to the start of a tag in the hwinfo area of the system page
hwi_tag2off(): Return the offset from the start of the hwinfo area of the system page
ICMP6: Internet Control Message Protocol for IPv6
if_freenameindex(): Free dynamic memory allocated by if_nameindex()
if_indextoname(): Map an interface index to its name
if_nameindex(): Return a list of interfaces
if_nametoindex(): Map an interface name to its index
ifaddrs(): Structure that describes an Internet host
INET6: Internet Protocol version 6 family
inet_net_ntop(): Convert an Internet network number to CIDR format
inet_net_pton(): Convert an Internet network number from CIDR format to network format
IPv6: Internet Protocol version 6
IPsec: Internet security protocol
mallinfo(): Get memory allocation information
mallopt(): Control the memory allocation
mcheck(): Enable memory allocation routine consistency checks
memalign(): Allocate aligned memory
mprobe(): Perform consistency check on memory
posix_memalign(): Allocate aligned memory
procmgr_session(): Provide process manager session support
_resmgr_handle_grow(): Expand the capacity of the device manager database
_resmgr_io_func(): Retrieve an I/O function from an I/O function table
resmgr_iofuncs(): Extract the I/O function pointers associated with c connection
resmgr_ocb(): Retrieve an open context block
resmgr_writev(): Write a message to a client
sched_get_priority_adjust(): Calculate the allowable priority for the scheduling policy
seekdir(): Set the position for the next read of the directory stream
_sleepon_broadcast(): Wake up multiple threads
_sleepon_destroy(): Destroy a sleepon
_sleepon_init(): Initialize a sleepon
_sleepon_lock(): Lock a sleepon
_sleepon_signal(): Wake up a single thread
_sleepon_unlock(): Unlock a sleepon
_sleepon_wait(): Wait on a sleepon
tcsetsid(): Make a terminal device a controlling device
strtoimax(), strtoumax(): Convert a string to an integer type
telldir(): Get the location associated with the directory stream
valloc(): Allocate a heap block aligned on a page boundary
wcstoimax(), wcstoumax(): Convert a wide-character string to an integer type

Deprecated Content

getpriority() -- use getprio() or SchedGet() instead.
setpriority() -- use setprio() or SchedSet() instead.

Errata

snprintf(): Corrected the Returns section and Classifications

What's new in the QNX 6.1.0 docs

Significant changes:

New content
Deprecated content

New content

The following functions have been added:

Wide-character functions: Wide-character versions of many functions
InterruptHookTrace(): Attach the pseudo interrupt handler that's used by the instrumented module
iofdinfo(): Retrieve server attributes
iofunc_fdinfo(): Handle an _IO_FDINFO message
iofunc_fdinfo_default(): Default handler for _IO_FDINFO messages
MsgVerifyEvent(), MsgVerifyEvent_r(): Check the validity of a receive ID and an event configuration
resmgr_unbind(): Remove an OCB
straddstr(): Concatenate one string on to the end of another
SyncCtl(), SyncCtl_r(): Perform an operation on a synchronization object
SyncMutexEvent(), SyncMutexEvent_r(): Attach an event to a mutex
SyncMutexRevive(), SyncMutexRevive_r(): Revive a mutex
thread_pool_control(): Control the thread pool behaviour
thread_pool_limits(): Wrapper function for thread_pool_control()
TraceEvent(): Trace kernel events

Deprecated content

The following function has been deprecated:

matherr(): Handle errors in math library functions

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