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closedir(3) -- close a directory
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The closedir() function closes the directory stream associated with dir. The directory stream descriptor dir is not available after this call. |
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cmsg(3) -- Access ancillary data.
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These macros are used to create and access control messages (also called ancillary data) that are not a part of the socket payload. This control information may include the interface the packet was re... |
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confstr(3) -- get configuration dependent string variables
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confstr() gets the value of configuration - dependent string variables. The name argument is the system variable to be queried. The following variables are supported: _CS_PATH A value for the PATH var... |
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copysign(3) -- copy sign of a number
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The copysign() function returns a value whose absolute value matches x, but whose sign matches that of y. |
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cos(3) -- cosine function
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The cos() function returns the cosine of x, where x is given in radians. |
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cosh(3) -- hyperbolic cosine function
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The cosh() function returns the hyperbolic cosine of x, which is defined mathematically as (exp(x) + exp(-x)) / 2. |
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crypt(3) -- password and data encryption
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crypt provides acess to two algorithms for password encryption. One it's based on the Data Encryption Standard algorithm with variations intended (among other things) to discourage use of hardware im... |
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ctermid(3) -- get controlling terminal name
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ctermid() returns a string which is the pathname for the current controlling terminal for this process. If s is NULL, a static buffer is used, otherwise s points to a buffer used to hold the terminal ... |
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ctime(3) -- transform binary date and time to ASCII
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The ctime(), gmtime() and localtime() functions all take an argument of data type time_t which represents calendar time. When interpreted as an absolute time value, it represents the number of seconds... |
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cutbuffer(3) -- Manipulate X cut buffer properties
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The cutbuffer command allows you to read or modify the eight X cut buffer properties. You can also rotate the buffers properties. |
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daemon(3) -- run in the background
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The daemon() function is for programs wishing to detach themselves from the controlling terminal and run in the background as system daemons. Unless the argument nochdir is non-zero, daemon() changes ... |
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dbopen(3) -- database access methods
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Dbopen is the library interface to database files. The supported file formats are btree, hashed and UNIX file oriented. The btree format is a representation of a sorted, balanced tree structure. The h... |
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dcgettext(3) --
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