"-O ftrunc=": implement file truncations (without sanity checks).

[tfcrypt.git] / tfcrypt.h

diff --git a/tfcrypt.h b/tfcrypt.h
index fcc75eea79c54a518fb6c5c3379a1b73152ce458..49073c96ad0d63fb63d97530a531ee247b77855b 100644 (file)
--- a/tfcrypt.h
+++ b/tfcrypt.h
@@ -29,6 +29,9 @@
 #ifndef _TFCRYPT_H
 #define _TFCRYPT_H
 
+#ifndef _DEFAULT_SOURCE
+#define _DEFAULT_SOURCE
+#endif
 #ifndef _BSD_SOURCE
 #define _BSD_SOURCE
 #endif
@@ -38,6 +41,9 @@
 #ifndef _LARGEFILE64_SOURCE
 #define _LARGEFILE64_SOURCE
 #endif
+#ifndef _FILE_OFFSET_BITS
+#define _FILE_OFFSET_BITS 64
+#endif
 
 #ifndef _TFCRYPT_VERSION
 #error Version number may help you to identify missing functionality.
@@ -94,7 +100,7 @@ typedef unsigned long long tfc_useconds;
 #define NOFSIZE ((tfc_fsize)-1)
 #define TFC_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
 
-#define TFC_KEY_BITS (do_tfcrypt1 == YES ? TF_MAX_BITS : TF_NR_KEY_BITS)
+#define TFC_KEY_BITS (do_full_key == NO ? TF_MAX_BITS : TF_NR_KEY_BITS)
 
 #define TFC_ASCII_TFC_MAC_FOURCC "%TF"
 #define TFC_ASCII_TFC_MAC_FOURCC_LEN (sizeof(TFC_ASCII_TFC_MAC_FOURCC)-1)
@@ -113,39 +119,45 @@ int xmhexdump(int to, const void *data, size_t szdata, int hgroup, int hexstr, i
 #define mhexdump(data, szdata, group, newline) xmhexdump(1, data, szdata, group, do_full_hexdump, newline)
 #define mehexdump(data, szdata, group, newline) xmhexdump(2, data, szdata, group, do_full_hexdump, newline)
 
+size_t xstrlcpy(char *dst, const char *src, size_t size);
+size_t xstrlcat(char *dst, const char *src, size_t size);
+
 extern size_t nr_turns;
 extern int ctr_mode;
 extern size_t macbits;
 extern size_t tfc_saltsz;
 extern tfc_byte tfc_salt[TFC_MAX_SALT];
+extern tfc_yesno do_full_key;
 
 extern char *progname;
 extern int exitcode;
-extern tfc_byte key[TF_KEY_SIZE], ctr[TF_BLOCK_SIZE], xtskey[TF_KEY_SIZE], mackey[TF_FROM_BITS(TF_MAX_BITS)];
+extern tfc_byte key[TF_KEY_SIZE], ctr[TF_BLOCK_SIZE], xtskey[TF_KEY_SIZE], mackey[TF_FROM_BITS(TF_MAX_BITS)], tweak[TF_TWEAK_SIZE];
 extern struct skein sk;
 extern struct tfe_stream tfe;
 extern tfc_byte srcblk[TFC_BLKSIZE], dstblk[TFC_BLKSIZE], *pblk;
 extern tfc_byte macvrfy[SKEIN_DIGEST_SIZE], macresult[SKEIN_DIGEST_SIZE];
 extern tfc_byte tmpdata[TFC_TMPSIZE];
 extern char *randsource;
-extern tfc_fsize iseek_blocks, iseek, oseek, maxlen;
+extern tfc_fsize iseek_blocks, iseek, oseek, maxlen, ftrunc_dfd;
 extern tfc_fsize total_processed_src, total_processed_dst;
 extern tfc_fsize delta_processed;
 extern tfc_fsize genrandom_nr_bytes, genzero_nr_bytes;
+extern tfc_fsize rdpos;
+extern tfc_fsize maxkeylen, keyoffset;
 extern int sfd, kfd, dfd;
 extern struct stat s_stat;
 extern size_t blksize, xtsblocks;
 extern char pwdask[512], pwdagain[512];
 extern size_t lio, lrem, ldone, lblock;
-extern size_t maxkeylen, ctrsz;
+extern size_t ctrsz;
 extern struct sigaction sigact;
 extern size_t sksum_turns;
 extern int do_edcrypt, do_stop, quiet, error_action;
 extern int counter_opt, mackey_opt, do_mac, do_outfmt, rawkey;
 extern int idx, write_flags;
-extern tfc_yesno catch_all_errors, password, overwrite_source, do_fsync, do_pad, do_tfcrypt1;
+extern tfc_yesno catch_all_errors, ignore_seek_errors, password, overwrite_source, do_fsync, do_pad;
 extern tfc_yesno do_preserve_time, do_stats_in_gibs, do_statline_dynamic, do_less_stats;
-extern tfc_yesno no_repeat, do_full_hexdump, verbose, statline_was_shown;
+extern tfc_yesno no_repeat, do_full_hexdump, verbose, statline_was_shown, show_secrets;
 extern char *srcfname, *dstfname, *do_mac_file, *counter_file, *sksum_hashlist_file;
 extern char *saltf, *genkeyf, *mackeyf, *tweakf;
 extern char *pw_prompt, *mac_pw_prompt;
@@ -153,6 +165,9 @@ extern tfc_useconds status_timer, bench_timer;
 extern tfc_useconds current_time, delta_time;
 extern struct getpasswd_state getps;
 
+size_t xread(int fd, void *data, size_t szdata);
+size_t xwrite(int fd, const void *data, size_t szdata);
+
 void xerror(tfc_yesno noexit, tfc_yesno noerrno, tfc_yesno nostats, const char *fmt, ...);
 void xexit(int status);
 void usage(void);
@@ -174,6 +189,7 @@ void xclose(int fd);
 const char *tfc_modename(int mode);
 void tfc_getcurtime(tfc_useconds *tx);
 tfc_fsize tfc_fdsize(int fd);
+tfc_fsize tfc_fdgetpos(int fd);
 tfc_fsize tfc_fnamesize(char *fname, tfc_yesno noexit);
 tfc_fsize tfc_modifysize(tfc_fsize szmodify, const char *szspec);
 void fcopy_matime(int fd, const struct stat *st);
@@ -188,8 +204,9 @@ void change_status_width(int signal);
 void change_status_timer(int signal);
 void setup_next_alarm(tfc_useconds useconds);
 void skein(void *hash, size_t bits, const void *key, const void *data, size_t szdata);
-void tf_key_tweak_compat(void *key);
-tfc_yesno skeinfd(void *hash, size_t bits, const void *key, int fd, tfc_fsize readto);
+tfc_yesno skeinfd(void *hash, size_t bits, const void *key, int fd, tfc_fsize offset, tfc_fsize readto);
+
+void read_defaults(const char *path, tfc_yesno noerr);
 
 void gen_write_bytes(const char *foutname, tfc_fsize offset, tfc_fsize nrbytes);
 void do_edbase64(char **fargv);
@@ -198,7 +215,7 @@ void do_benchmark(tfc_useconds useconds, double dseconds);
 
 enum { NO, YES };
 
-enum { TFC_ERRACT_EXIT, TFC_ERRACT_CONT, TFC_ERRACT_SYNC };
+enum { TFC_ERRACT_EXIT, TFC_ERRACT_CONT, TFC_ERRACT_SYNC, TFC_ERRACT_LSYNC };
 enum { TFC_STOP_BEGAN = 1, TFC_STOP_FULL };
 enum { TFC_DO_PLAIN, TFC_DO_ENCRYPT, TFC_DO_DECRYPT };
 enum { TFC_MAC_DROP = -1, TFC_MAC_SIGN = 1, TFC_MAC_VRFY, TFC_MAC_JUST_VRFY };
@@ -209,6 +226,6 @@ enum {
        TFC_MODE_SKSUM = -2, TFC_MODE_PLAIN = -1, TFC_MODE_CTR = 1,
        TFC_MODE_STREAM, TFC_MODE_XTS, TFC_MODE_ECB, TFC_MODE_CBC, TFC_MODE_OCB
 };
-enum { TFC_CTR_SHOW = 1, TFC_CTR_HEAD, TFC_CTR_RAND };
+enum { TFC_CTR_SHOW = 1, TFC_CTR_HEAD, TFC_CTR_RAND, TFC_CTR_ZERO };
 
 #endif