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stringprep_4i(3) libidn stringprep_4i(3) NAME stringprep_4i - API function SYNOPSIS #include <stringprep.h> int stringprep_4i(uint32_t * ucs4, size_t * len, size_t maxucs4len, String- prep_profile_flags flags, const Stringprep_profile * profile); ARGUMENTS uint32_t * ucs4 input/output array with string to prepare. size_t * lenon input, length of input array with Unicode code points, on exit, length of output array with Unicode code points. size_t maxucs4len maximum length of input/output array. Stringprep_profile_flags flags a Stringprep_profile_flags value, or 0. const Stringprep_profile * profile pointer to Stringprep_profile to use. DESCRIPTION Prepare the input UCS-4 string according to the stringprep profile, and write back the result to the input string. The input is not required to be zero terminated ( ucs4 [ len ] = 0). The output will not be zero terminated unless ucs4 [ len ] = 0. Instead, see stringprep_4zi() if your input is zero terminated or if you want the output to be. Since the stringprep operation can expand the string, maxucs4len indicate how large the buffer holding the string is. This function will not read or write to code points outside that size. The flags are one of Stringprep_profile_flags values, or 0. The profile contain the Stringprep_profile instructions to perform. Your application can define new profiles, possibly re-using the generic string- prep tables that always will be part of the library, or use one of the cur- rently supported profiles. Return value: Returns STRINGPREP_OK iff successful, or an Stringprep_rc er- ror code. DESCRIPTION Prepare the input UCS-4 string according to the stringprep profile, and write back the result to the input string. The input is not required to be zero terminated ( ucs4 [ len ] = 0). The output will not be zero terminated unless ucs4 [ len ] = 0. Instead, see stringprep_4zi() if your input is zero terminated or if you want the output to be. Since the stringprep operation can expand the string, maxucs4len indicate how large the buffer holding the string is. This function will not read or write to code points outside that size. The flags are one of Stringprep_profile_flags values, or 0. The profile contain the Stringprep_profile instructions to perform. Your application can define new profiles, possibly re-using the generic string- prep tables that always will be part of the library, or use one of the cur- rently supported profiles. Return value: Returns STRINGPREP_OK iff successful, or an Stringprep_rc er- ror code. REPORTING BUGS Report bugs to <help-libidn@gnu.org>. General guidelines for reporting bugs: https://www.gnu.org/gethelp/ GNU Libidn home page: https://www.gnu.org/software/libidn/ COPYRIGHT Copyright (C) 2002-2025 Simon Josefsson. Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. SEE ALSO The full documentation for libidn is maintained as a Texinfo manual. If the info and libidn programs are properly installed at your site, the com- mand info libidn should give you access to the complete manual. As an alternative you may obtain the manual from: https://www.gnu.org/software/libidn/manual/ libidn 1.43 stringprep_4i(3)
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