#include <string.h>
#include <time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
#include <mLib/dstr.h>
#include "key.h"
#include "ghash.h"
#include "gmac.h"
-/*----- Data structures ---------------------------------------------------*/
-
-/* --- Progress indicators --- */
-
-typedef struct fprogress {
- const char *bp;
- off_t o, sz, olast;
- time_t start, last;
- char name[24];
-} fprogress;
+/*----- Cryptographic object tables ---------------------------------------*/
/* --- Key encapsulation --- */
extern const struct kemtab kemtab[];
-/* --- Signing --- */
-
-typedef struct sig {
- const struct sigops *ops;
- key_packdef *kp;
- void *kd;
- const gchash *ch;
- ghash *h;
-} sig;
-
-typedef struct sigops {
- const key_fetchdef *kf; /* Key fetching structure */
- size_t kdsz; /* Size of the key-data structure */
- sig *(*init)(key */*k*/, void */*kd*/, const gchash */*hc*/);
- int (*doit)(sig */*s*/, dstr */*d*/);
- const char *(*check)(sig */*s*/);
- void (*destroy)(sig */*s*/);
-} sigops;
-
-struct sigtab {
- const char *name;
- const sigops *signops;
- const sigops *verifyops;
- const gchash *ch;
-};
-
-extern const struct sigtab sigtab[];
-
-/* --- Data encoding --- */
-
-typedef struct enc {
- const struct encops *ops;
- FILE *fp;
-} enc;
-
-typedef struct encops {
- const char *name;
- const char *rmode, *wmode;
- int nraw, ncook;
- enc *(*initenc)(FILE */*fp*/, const char */*msg*/);
- enc *(*initdec)(FILE */*fp*/,
- int (*/*func*/)(const char *, void *), void */*p*/);
- int (*read)(enc */*e*/, void */*p*/, size_t /*sz*/);
- int (*write)(enc */*e*/, const void */*p*/, size_t /*sz*/);
- int (*encdone)(enc */*e*/);
- int (*decdone)(enc */*e*/);
- void (*destroy)(enc */*e*/);
-} encops;
-
-extern const encops enctab[];
-
-/*----- Functions provided ------------------------------------------------*/
-
/* --- @getkem@ --- *
*
* Arguments: @key *k@ = the key to load
extern void freekem(kem */*k*/);
+/* --- Signing --- */
+
+typedef struct sig {
+ const struct sigops *ops;
+ key_packdef *kp;
+ void *kd;
+ const gchash *ch;
+ ghash *h;
+} sig;
+
+typedef struct sigops {
+ const key_fetchdef *kf; /* Key fetching structure */
+ size_t kdsz; /* Size of the key-data structure */
+ sig *(*init)(key */*k*/, void */*kd*/, const gchash */*hc*/);
+ int (*doit)(sig */*s*/, dstr */*d*/);
+ const char *(*check)(sig */*s*/);
+ void (*destroy)(sig */*s*/);
+} sigops;
+
+struct sigtab {
+ const char *name;
+ const sigops *signops;
+ const sigops *verifyops;
+ const gchash *ch;
+};
+
+extern const struct sigtab sigtab[];
+
/* --- @getsig@ --- *
*
* Arguments: @key *k@ = the key to load
extern void freesig(sig */*s*/);
+/*----- File encodings ----------------------------------------------------*/
+
+/* --- Data encoding --- */
+
+typedef struct enc {
+ const struct encops *ops;
+ FILE *fp;
+} enc;
+
+typedef struct encops {
+ const char *name;
+ const char *rmode, *wmode;
+ int nraw, ncook;
+ enc *(*initenc)(FILE */*fp*/, const char */*msg*/);
+ enc *(*initdec)(FILE */*fp*/,
+ int (*/*func*/)(const char *, void *), void */*p*/);
+ int (*read)(enc */*e*/, void */*p*/, size_t /*sz*/);
+ int (*write)(enc */*e*/, const void */*p*/, size_t /*sz*/);
+ int (*encdone)(enc */*e*/);
+ int (*decdone)(enc */*e*/);
+ void (*destroy)(enc */*e*/);
+} encops;
+
+extern const encops enctab[];
+
/* --- @getenc@ --- *
*
* Arguments: @const char *enc@ = name of wanted encoding
extern int cmd_encode(int /*argc*/, char */*argv*/[]);
extern int cmd_decode(int /*argc*/, char */*argv*/[]);
+/*----- Hash encoding functions -------------------------------------------*/
+
+/* --- Table --- */
+
+#define ENCODINGS(_) \
+ _(HEX, hex) \
+ _(BASE64, base64) \
+ _(BASE32, base32)
+
+enum {
+#define ENUM(tag, name) ENC_##tag,
+ ENCODINGS(ENUM)
+#undef ENUM
+ ENC_LIMIT
+};
+
+typedef struct encodeops {
+ const char *name;
+ void (*put)(const octet *, size_t, FILE *);
+ size_t (*get)(const char *, octet *, size_t, char **);
+} encodeops;
+
+extern const encodeops encodingtab[];
+
+/* --- @getencoding@ --- *
+ *
+ * Arguments: @const char *ename@ = encoding name
+ *
+ * Returns: Pointer to encoding table entry, or null.
+ *
+ * Use: Finds an encoding entry given its name.
+ */
+
+extern const encodeops *getencoding(const char */*ename*/);
+
+/*----- File hashing ------------------------------------------------------*/
+
+typedef struct fhashstate {
+ const gchash *gch;
+ unsigned f;
+ struct fhent *ents;
+} fhashstate;
+
+#define FHF_BINARY 0x100u
+#define FHF_PROGRESS 0x200u
+#define FHF_JUNK 0x400u
+
+#define FHF_MASK 0xff00u
+
+/* --- @gethash@ --- *
+ *
+ * Arguments: @const char *name@ = pointer to name string
+ *
+ * Returns: Pointer to appropriate hash class.
+ *
+ * Use: Chooses a hash function by name.
+ */
+
+extern const gchash *gethash(const char */*name*/);
+
+/* --- @describefile@ --- *
+ *
+ * Arguments: @const struct stat *st@ = pointer to file state
+ *
+ * Returns: A snappy one-word description of the file.
+ */
+
+extern const char *describefile(const struct stat */*st*/);
+
+/* --- @fhash_init@ ---*
+ *
+ * Arguments: @fhashstate *fh@ = pointer to fhash state to initialize
+ * @const gchash *gch@ = hash class to set
+ * @unsigned f@ initial flags to set
+ *
+ * Returns: ---
+ *
+ * Use: Initializes an @fhashstate@ structure.
+ */
+
+extern void fhash_init(fhashstate */*fh*/,
+ const gchash */*gch*/, unsigned /*f*/);
+
+/* --- @fhash_free@ --- *
+ *
+ * Arguments: @fhashstate *fh@ = pointer to fhash state to free
+ *
+ * Returns: ---
+ *
+ * Use: Frees an fhash state.
+ */
+
+extern void fhash_free(fhashstate */*fh*/);
+
+/* --- @fhash@ --- *
+ *
+ * Arguments: @fhashstate *fh@ = pointer to fhash state
+ * @const char *file@ = file name to be hashed (null for stdin)
+ * @void *buf@ = pointer to hash output buffer
+ *
+ * Returns: Zero if it worked, nonzero on error.
+ *
+ * Use: Hashes a file.
+ */
+
+extern int fhash(fhashstate */*fh*/, const char */*file*/, void */*buf*/);
+
+/* --- @fhash_junk@ --- *
+ *
+ * Arguments: @fhashstate *fh@ = pointer to fhash state
+ * @void (*func)(const char *, const struct stat *, void *)@
+ * @void *p@ = pointer to pass to function
+ *
+ * Returns: Positive if any junk was found, negative on error, zero if
+ * everything was fine.
+ *
+ * Use: Reports junk files in any directories covered by the hash
+ * state.
+ */
+
+extern int fhash_junk(fhashstate */*fh*/,
+ int (*/*func*/)(const char *,
+ const struct stat *,
+ void *),
+ void */*p*/);
+
+/* --- @hfparse@ --- *
+ *
+ * Arguments: @hfpctx *hfp@ = pointer to the context structure
+ *
+ * Returns: A code indicating what happened.
+ *
+ * Use: Parses a line from the input file.
+ */
+
+enum { /* Meaning and members set */
+ HF_FILE, /* File hash: @dline@ and @hbuf@ */
+ HF_ENC, /* Encoding: @ee@ */
+ HF_HASH, /* Hash function: @gch@ */
+ HF_ESC, /* Name escape: @f@ */
+ HF_EOF, /* End of file */
+ HF_BAD /* Unrecognized line */
+};
+
+typedef struct hfpctx {
+ unsigned f; /* Flags to read */
+#define HFF_ESCAPE 1u /* File names are escaped */
+ FILE *fp; /* Input file to read */
+ dstr *dline; /* Line contents, corrupted */
+ const gchash *gch; /* Hash function to use */
+ const encodeops *ee; /* Encoding to apply to hashes */
+ dstr *dfile; /* File name for @HF_FILE@ lines */
+ octet *hbuf; /* Output buffer for hash data */
+} hfpctx;
+
+extern int hfparse(hfpctx */*hfp*/);
+
+/*----- String I/O --------------------------------------------------------*/
+
+#define GSF_RAW 4096u
+#define GSF_FILE 0u
+#define GSF_STRING 8192u
+
+#define GSF_MASK 61440u
+
+/* --- @getstring@ --- *
+ *
+ * Arguments: @void *in@ = input source
+ * @dstr *d@ = destination string
+ * @unsigned f@ = input flags
+ *
+ * Returns: Zero if OK, nonzero on end-of-file.
+ *
+ * Use: Reads a filename (or something similar) from a stream.
+ */
+
+extern int getstring(void */*in*/, dstr */*d*/, unsigned /*f*/);
+
+/* --- @putstring@ --- *
+ *
+ * Arguments: @FILE *fp@ = stream to write on
+ * @const char *p@ = pointer to text
+ * @unsigned f@ = output flags
+ *
+ * Returns: ---
+ *
+ * Use: Emits a string to a stream.
+ */
+
+extern void putstring(FILE */*fp*/, const char */*p*/, unsigned /*f*/);
+
+/*----- Lists of things ---------------------------------------------------*/
+
/* --- @LIST(STRING, FP, END-TEST, NAME-EXPR)@ --- *
*
* Produce list of things. Requires @i@ and @w@ variables in scope.
extern int displaylists(const struct listent */*listtab*/,
char *const /*argv*/[]);
-/*----- Subcommand dispatch -----------------------------------------------*/
-
-typedef struct cmd {
- const char *name;
- int (*cmd)(int /*argc*/, char */*argv*/[]);
- const char *usage;
- const char *help;
-} cmd;
-
-extern void version(FILE */*fp*/);
-extern void help_global(FILE */*fp*/);
-
-/* --- @findcmd@ --- *
- *
- * Arguments: @const cmd *cmds@ = pointer to command table
- * @const char *name@ = a command name
- *
- * Returns: Pointer to the command structure.
- *
- * Use: Looks up a command by name. If the command isn't found, an
- * error is reported and the program is terminated.
- */
-
-const cmd *findcmd(const cmd */*cmds*/, const char */*name*/);
-
-/* --- @sc_help@ --- *
- *
- * Arguments: @const cmd *cmds@ = pointer to command table
- * @FILE *fp@ = output file handle
- * @char *const *argv@ = remaining arguments
- *
- * Returns: ---
- *
- * Use: Prints a help message, maybe with help about subcommands.
- */
-
-extern void sc_help(const cmd */*cmds*/, FILE */*fp*/,
- char *const */*argv*/);
-
/*----- Progress indicators -----------------------------------------------*/
+typedef struct fprogress {
+ const char *bp;
+ off_t o, sz, olast;
+ time_t start, last;
+ char name[24];
+} fprogress;
+
/* --- @fprogress_init@ --- *
*
* Arguments: @fprogress *f@ = progress context to be initialized
extern void fprogress_done(fprogress */*f*/);
+/*----- Subcommand dispatch -----------------------------------------------*/
+
+typedef struct cmd {
+ const char *name;
+ int (*cmd)(int /*argc*/, char */*argv*/[]);
+ const char *usage;
+ const char *help;
+} cmd;
+
+extern void version(FILE */*fp*/);
+extern void help_global(FILE */*fp*/);
+
+/* --- @findcmd@ --- *
+ *
+ * Arguments: @const cmd *cmds@ = pointer to command table
+ * @const char *name@ = a command name
+ *
+ * Returns: Pointer to the command structure.
+ *
+ * Use: Looks up a command by name. If the command isn't found, an
+ * error is reported and the program is terminated.
+ */
+
+const cmd *findcmd(const cmd */*cmds*/, const char */*name*/);
+
+/* --- @sc_help@ --- *
+ *
+ * Arguments: @const cmd *cmds@ = pointer to command table
+ * @FILE *fp@ = output file handle
+ * @char *const *argv@ = remaining arguments
+ *
+ * Returns: ---
+ *
+ * Use: Prints a help message, maybe with help about subcommands.
+ */
+
+extern void sc_help(const cmd */*cmds*/, FILE */*fp*/,
+ char *const */*argv*/);
+
/*----- That's all, folks -------------------------------------------------*/
#ifdef __cplusplus
projects / u / mdw / catacomb / blobdiff