- /* Author: Daniel Kahn Gillmor <dkg@fifthhorseman.net> */
- /* Date: Fri, 04 Apr 2008 19:31:16 -0400 */
- /* License: GPL v3 or later */
- #include <gnutls/gnutls.h>
- #include <gnutls/openpgp.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <errno.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <unistd.h>
- #include <stdarg.h>
- /* Functions to help dealing with GnuTLS for monkeysphere key
- translation projects: */
- /* set everything up, including logging levels. Return 0 on
- success */
- int init_gnutls();
- /* logging and output functions: */
- void err(int level, const char* fmt, ...);
- void logfunc(int level, const char* string);
- /* basic datum manipulations: */
- void init_datum(gnutls_datum_t* d);
- void copy_datum(gnutls_datum_t* dest, const gnutls_datum_t* src);
- int compare_data(const gnutls_datum_t* a, const gnutls_datum_t* b);
- void free_datum(gnutls_datum_t* d);
- int write_datum_fd(int fd, const gnutls_datum_t* d);
- int write_datum_fd_with_length(int fd, const gnutls_datum_t* d);
- int write_data_fd_with_length(int fd, const gnutls_datum_t** d, unsigned int num);
- /* set up a datum from a null-terminated string */
- int datum_from_string(gnutls_datum_t* d, const char* str);
- /* keyid manipulations: */
- typedef unsigned char printable_keyid[16];
- void init_keyid(gnutls_openpgp_keyid_t keyid);
- void make_keyid_printable(printable_keyid out, gnutls_openpgp_keyid_t keyid);
- void collapse_printable_keyid(gnutls_openpgp_keyid_t out, printable_keyid in);
- int convert_string_to_keyid(gnutls_openpgp_keyid_t out, const char* str);
- int convert_string_to_printable_keyid(printable_keyid out, const char* str);
- /* you must have twice as many bytes in the out buffer as in the in buffer */
- void hex_print_data(char* out, const unsigned char* in, size_t incount);
- /* expects a null-terminated string as in, containing an even number
- of hexadecimal characters.
- returns length in *bits* of raw data as output.
- the out buffer must be at least half as long as in to hold the
- output. if out is NULL, no output will be generated, but the
- length will still be returned.
- */
- unsigned int hexstring2bin(unsigned char* out, const char* in);
- /* functions to get data into datum objects: */
- /* read the passed-in string, store in a single datum */
- int set_datum_string(gnutls_datum_t* d, const char* s);
- /* read the passed-in file descriptor until EOF, store in a single
- datum */
- int set_datum_fd(gnutls_datum_t* d, int fd);
- /* read the file indicated (by name) in the fname parameter. store
- its entire contents in a single datum. */
- int set_datum_file(gnutls_datum_t* d, const char* fname);
- /* set up file descriptor pipe for writing (child process pid gets
- stored in pid, fd is returned)*/
- int create_writing_pipe(pid_t* pid, const char* path, char* const argv[]);
- /* return 0 if userid matches the monkeysphere spec for ssh host user IDs */
- int validate_ssh_host_userid(const char* userid);
- /* how many bytes will it take to write out this datum in OpenPGP MPI form? */
- size_t get_openpgp_mpi_size(gnutls_datum_t* d);
- /* write the MPI stored in gnutls_datum_t to file descriptor fd: */
- int write_openpgp_mpi_to_fd(int fd, gnutls_datum_t* d);
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