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creat(3) -- create a new file
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This interface is made obsolete by: open(2). creat() is the same as: open(path, O_CREAT | O_TRUNC | O_WRONLY, mode); |
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crypt(3) -- password encryption
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The crypt() function performs password encryption. The encryption scheme used by crypt() is dependent upon the contents of the NUL-terminated string setting. If setting begins with the ``$'' charact... |
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crypto(3) -- OpenSSL cryptographic library
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CRYPTO_set_ex_data(3) -- internal application specific data functions
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Several OpenSSL structures can have application specific data attached to them. These functions are used internally by OpenSSL to manipulate application specific data attached to a specific structure.... |
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ctermid(3) -- generate terminal pathname
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The ctermid() function generates a string, that, when used as a pathname, refers to the current controlling terminal of the calling process. If buf is the NULL pointer, a pointer to a static area is r... |
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ctime(3) -- convert date and time to ASCII
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ctime() converts a long integer, pointed to by clock, representing the time in seconds since 00:00:00 UTC, 1970-01-01, and returns a pointer to a 26-character string of the form Thu Nov 24 18:22:48 19... |
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ctime_r(3) -- convert date and time to ASCII
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ctime() converts a long integer, pointed to by clock, representing the time in seconds since 00:00:00 UTC, 1970-01-01, and returns a pointer to a 26-character string of the form Thu Nov 24 18:22:48 19... |
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ctype(3) -- character classification macros
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The above macros perform character tests and conversions on the integer c. See the specific manual pages for more information. |
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curses(3) -- screen functions with ``optimal'' cursor motion
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These routines give the user a method of updating screens with reasonable optimization. They keep an image of the current screen, and the user sets up an image of a new one. Then the refresh() tells t... |
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cuserid(3) -- get user name
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This interface is available from the compatibility library, libcompat and has been obsoleted by getlogin(2) The cuserid() function returns a character string representation of the user name associated... |
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d2i_DHparams(3) -- ...
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... |
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d2i_RSAPublicKey(3) -- ...
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... |
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d2i_SSL_SESSION(3) -- convert SSL_SESSION object from/to ASN1 representation
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d2i_SSL_SESSION() transforms the external ASN1 representation of an SSL/TLS session, stored as binary data at location pp with length length, into an SSL_SESSION object. i2d_SSL_SESSION() transforms t... |
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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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daylight(3) -- initialize time conversion information
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The tzset() function uses the value of the environment variable TZ to set time conversion information used by localtime(3). If TZ does not appear in the environment, the best available approximation t... |
