237 lines
7.4 KiB
C
237 lines
7.4 KiB
C
/* util.h
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Copyright (C) 2000 Werner Koch (dd9jn)
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Copyright (C) 2001, 2002, 2003, 2004, 2005 g10 Code GmbH
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This file is part of GPGME.
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GPGME is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of
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the License, or (at your option) any later version.
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GPGME is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#ifndef UTIL_H
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#define UTIL_H
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#ifdef HAVE_W32_SYSTEM
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# include "winsock2.h"
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# include "windows.h"
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#endif
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/* For pid_t. */
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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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/* We must see the symbol ttyname_r before a redefinition. */
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include <stdint.h>
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#include "gpgme.h"
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#define DIM(v) (sizeof(v)/sizeof((v)[0]))
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/*-- {posix,w32}-util.c --*/
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int _gpgme_get_conf_int (const char *key, int *value);
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void _gpgme_allow_set_foreground_window (pid_t pid);
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/*-- dirinfo.c --*/
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void _gpgme_dirinfo_disable_gpgconf (void);
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const char *_gpgme_get_default_homedir (void);
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const char *_gpgme_get_default_agent_socket (void);
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const char *_gpgme_get_default_gpg_name (void);
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const char *_gpgme_get_default_gpgsm_name (void);
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const char *_gpgme_get_default_g13_name (void);
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const char *_gpgme_get_default_gpgconf_name (void);
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const char *_gpgme_get_default_gpgtar_name (void);
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const char *_gpgme_get_default_uisrv_socket (void);
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int _gpgme_in_gpg_one_mode (void);
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const char *_gpgme_get_basename (const char *name);
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/*-- replacement functions in <funcname>.c --*/
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#ifdef HAVE_CONFIG_H
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#ifndef HAVE_STPCPY
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static _GPGME_INLINE char *
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_gpgme_stpcpy (char *a, const char *b)
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{
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while (*b)
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*a++ = *b++;
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*a = 0;
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return a;
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}
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#define stpcpy(a,b) _gpgme_stpcpy ((a), (b))
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#endif /*!HAVE_STPCPY*/
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/* Due to a bug in mingw32's snprintf related to the 'l' modifier and
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for increased portability we use our snprintf on all systems. */
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#undef snprintf
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#define snprintf gpgrt_snprintf
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#if REPLACE_TTYNAME_R
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int _gpgme_ttyname_r (int fd, char *buf, size_t buflen);
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#undef ttyname_r
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#define ttyname_r(a,b,c) _gpgme_ttyname_r ((a), (b), (c))
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#endif
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#endif /*HAVE_CONFIG_H*/
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/*-- conversion.c --*/
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/* Make sure to erase the memory (PTR,LEN). */
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void _gpgme_wipememory (void *ptr, size_t len);
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/* Concatenate the string S1 with all the following strings up to a
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NULL. Returns a malloced buffer with the new string or NULL on a
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malloc error or if too many arguments are given. */
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char *_gpgme_strconcat (const char *s1, ...) GPGRT_ATTR_SENTINEL(0);
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/* Convert two hexadecimal digits from STR to the value they
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represent. Returns -1 if one of the characters is not a
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hexadecimal digit. */
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int _gpgme_hextobyte (const char *str);
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/* Decode the C formatted string SRC and store the result in the
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buffer *DESTP which is LEN bytes long. If LEN is zero, then a
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large enough buffer is allocated with malloc and *DESTP is set to
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the result. Currently, LEN is only used to specify if allocation
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is desired or not, the caller is expected to make sure that *DESTP
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is large enough if LEN is not zero. */
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gpgme_error_t _gpgme_decode_c_string (const char *src, char **destp,
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size_t len);
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/* Decode the percent escaped string SRC and store the result in the
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buffer *DESTP which is LEN bytes long. If LEN is zero, then a
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large enough buffer is allocated with malloc and *DESTP is set to
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the result. Currently, LEN is only used to specify if allocation
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is desired or not, the caller is expected to make sure that *DESTP
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is large enough if LEN is not zero. If BINARY is 1, then '\0'
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characters are allowed in the output. */
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gpgme_error_t _gpgme_decode_percent_string (const char *src, char **destp,
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size_t len, int binary);
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gpgme_error_t _gpgme_encode_percent_string (const char *src, char **destp,
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size_t len);
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/* Split a string into space delimited fields and remove leading and
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* trailing spaces from each field. A pointer to each field is
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* stored in ARRAY. Stop splitting at ARRAYSIZE fields. The function
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* modifies STRING. The number of parsed fields is returned. */
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int _gpgme_split_fields (char *string, char **array, int arraysize);
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/* Convert the field STRING into an unsigned long value. Check for
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* trailing garbage. */
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gpgme_error_t _gpgme_strtoul_field (const char *string, unsigned long *result);
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/* Convert STRING into an offset value similar to atoi(). */
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uint64_t _gpgme_string_to_off (const char *string);
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/* Parse the string TIMESTAMP into a time_t. The string may either be
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seconds since Epoch or in the ISO 8601 format like
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"20390815T143012". Returns 0 for an empty string or seconds since
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Epoch. Leading spaces are skipped. If ENDP is not NULL, it will
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point to the next non-parsed character in TIMESTRING. */
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time_t _gpgme_parse_timestamp (const char *timestamp, char **endp);
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/* Variant of _gpgme_parse_timestamp to return an unsigned long or 0
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* on error or missing timestamp. */
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unsigned long _gpgme_parse_timestamp_ul (const char *timestamp);
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int _gpgme_map_pk_algo (int algo, gpgme_protocol_t protocol);
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const char *_gpgme_cipher_algo_name (int algo, gpgme_protocol_t protocol);
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const char *_gpgme_cipher_mode_name (int algo, gpgme_protocol_t protocol);
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/*-- b64dec.c --*/
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struct b64state
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{
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int idx;
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int quad_count;
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char *title;
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unsigned char radbuf[4];
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int stop_seen:1;
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int invalid_encoding:1;
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gpg_error_t lasterr;
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};
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gpg_error_t _gpgme_b64dec_start (struct b64state *state, const char *title);
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gpg_error_t _gpgme_b64dec_proc (struct b64state *state,
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void *buffer, size_t length, size_t *r_nbytes);
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gpg_error_t _gpgme_b64dec_finish (struct b64state *state);
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/* Retrieve the environment variable NAME and return a copy of it in a
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malloc()'ed buffer in *VALUE. If the environment variable is not
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set, return NULL in *VALUE. */
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gpgme_error_t _gpgme_getenv (const char *name, char **value);
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/*-- status-table.c --*/
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/* Convert a status string to a status code. */
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void _gpgme_status_init (void);
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gpgme_status_code_t _gpgme_parse_status (const char *name);
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const char *_gpgme_status_to_string (gpgme_status_code_t code);
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#ifdef HAVE_W32_SYSTEM
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int _gpgme_mkstemp (int *fd, char **name);
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const char *_gpgme_get_w32spawn_path (void);
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#endif /*HAVE_W32_SYSTEM*/
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#include <assuan.h>
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/* System hooks for assuan integration. */
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extern struct assuan_system_hooks _gpgme_assuan_system_hooks;
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extern struct assuan_malloc_hooks _gpgme_assuan_malloc_hooks;
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int _gpgme_assuan_log_cb (assuan_context_t ctx, void *hook,
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unsigned int cat, const char *msg);
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/* Parse the compliance field. */
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#define PARSE_COMPLIANCE_FLAGS(flags, result) \
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do { \
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char *comp_p, *comp_endp; \
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unsigned long comp_ul; \
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\
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for (comp_p = (flags); \
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comp_p \
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&& (comp_ul = strtoul (comp_p, &comp_endp, 10)) \
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&& comp_p != comp_endp; \
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comp_p = comp_endp) \
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{ \
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switch (comp_ul) \
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{ \
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case 23: (result)->is_de_vs = 1; break; \
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} \
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} \
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} while (0)
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#endif /* UTIL_H */
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