/*
* prototypes.h -- various prototypes
+ *
+ * If you modify functions here, please document their current behavior
+ * as much as practical.
*/
-/*
- * missing system prototypes
- */
-#if ! defined(HAVE_TERMCAP_H) && ! defined (HAVE_NCURSES_TERMCAP_H)
- extern int tgetent (char *bp, char *name);
- extern int tgetnum (char *id);
- extern int tgetflag (char *id);
- extern char *tgetstr (char *id, char **area);
- extern char *tgoto (char *cm, int destcol, int destline);
- extern int tputs (char *cp, int affcnt, int (*outc) (int));
-#endif
-
/*
* prototype from config.h
*/
struct msgs_array;
-void adios (char *, char *, ...) NORETURN;
+void add_profile_entry (const char *, const char *);
+void adios (const char *, const char *, ...) NORETURN;
void admonish (char *, char *, ...);
-void advertise (char *, char *, char *, va_list);
-void advise (char *, char *, ...);
+void advertise (const char *, char *, const char *, va_list);
+void advise (const char *, const char *, ...);
char **argsplit (char *, char **, int *);
void argsplit_msgarg (struct msgs_array *, char *, char **);
void argsplit_insert (struct msgs_array *, char *, char **);
void arglist_free (char *, char **);
-void ambigsw (char *, struct swit *);
+void ambigsw (const char *, const struct swit *);
int atooi(char *);
char **brkstring (char *, char *, char *);
+
+/*
+ * Check to see if we can display a given character set natively.
+ * Arguments include:
+ *
+ * str - Name of character set to check against
+ * len - Length of "str"
+ *
+ * Returns 1 if the specified character set can be displayed natively,
+ * 0 otherwise.
+ */
+
int check_charset (char *, int);
int client(char *, char *, char *, int, int);
void closefds(int);
char *concat (const char *, ...);
int context_del (char *);
-char *context_find (char *);
+char *context_find (const char *);
+char *context_find_by_type (const char *, const char *, const char *);
+int context_find_prefix(const char *);
int context_foil (char *);
void context_read (void);
void context_replace (char *, char *);
void context_save (void);
char *copy (const char *, char *);
char **copyip (char **, char **, int);
-void cpydata (int, int, char *, char *);
+void cpydata (int, int, const char *, const char *);
void cpydgst (int, int, char *, char *);
char *cpytrim (const char *);
+char *rtrim (char *);
int decode_rfc2047 (char *, char *, size_t);
void discard (FILE *);
+char *upcase (const char *);
+
+/*
+ * Decode two characters into their quoted-printable representation.
+ *
+ * Arguments are:
+ *
+ * byte1 - First character of Q-P representation
+ * byte2 - Second character of Q-P representation
+ *
+ * Returns the decoded value, -1 if the conversion failed.
+ */
+int decode_qp(unsigned char byte1, unsigned char byte2);
+
int default_done (int);
+
+/*
+ * Encode a message header using RFC 2047 encoding. If the message contains
+ * no non-ASCII characters, then leave the header as-is.
+ *
+ * Arguments include:
+ *
+ * name - Message header name
+ * value - Message header content; must point to allocated memory
+ * (may be changed if encoding is necessary)
+ * encoding - Encoding type. May be one of CE_UNKNOWN (function chooses
+ * the encoding), CE_BASE64 or CE_QUOTED
+ * charset - Charset used for encoding. If NULL, obtain from system
+ * locale.
+ *
+ * Returns 0 on success, any other value on failure.
+ */
+
+int encode_rfc2047(const char *name, char **value, int encoding,
+ const char *charset);
+
void escape_display_name (char *, size_t);
void escape_local_part (char *, size_t);
int ext_hook(char *, char *, char *);
int folder_delmsgs (struct msgs *, int, int);
void folder_free (struct msgs *);
int folder_pack (struct msgs **, int);
-struct msgs *folder_read (char *);
+
+/*
+ * Read a MH folder structure and return an allocated "struct msgs"
+ * corresponding to the contents of the folder.
+ *
+ * Arguments include:
+ *
+ * name - Name of folder
+ * lockflag - If true, write-lock (and keep open) metadata files.
+ * See comments for seq_read() for more information.
+ */
+struct msgs *folder_read (char *name, int lockflag);
+
struct msgs *folder_realloc (struct msgs *, int, int);
-int gans (char *, struct swit *);
-char **getans (char *, struct swit *);
+
+/*
+ * Flush standard output, read a line from standard input into a static buffer,
+ * zero out the newline, and return a pointer to the buffer.
+ * On error, return NULL.
+ */
+const char *read_line(void);
+
+/*
+ * Print null-terminated PROMPT to and flush standard output. Read answers from
+ * standard input until one matches an entry in SWITCHES. When one matches,
+ * return its swret field. Return 0 on EOF.
+ */
+int read_switch(const char *PROMPT, const struct swit *SWITCHES);
+
+/*
+ * If standard input is not a tty, return 1 without printing anything. Else,
+ * print null-terminated PROMPT to and flush standard output. Read answers from
+ * standard input until one is "yes" or "no", returning 1 for "yes" and 0 for
+ * "no". Also return 0 on EOF.
+ */
+int read_yes_or_no_if_tty(const char *PROMPT);
+
+/*
+ * Print null-terminated PROMPT to and flush standard output. Read multi-word
+ * answers from standard input until a first word matches an entry in SWITCHES.
+ * When one matches, return a pointer to an array of pointers to the words.
+ * Return NULL on EOF, interrupt, or other error.
+ */
+char **read_switch_multiword(const char *PROMPT, const struct swit *SWITCHES);
+
+/*
+ * Same as read_switch_multiword but using readline(3) for input.
+ */
#ifdef READLINE_SUPPORT
-char **getans_via_readline (char *, struct swit *);
+char **read_switch_multiword_via_readline (char *, struct swit *);
#endif /* READLINE_SUPPORT */
-int getanswer (char *);
+
char **getarguments (char *, int, char **, int);
+
+/*
+ * Returns the MIME character set indicated by the current locale setting.
+ * Should be used by routines that want to convert to/from the local
+ * character set, or if you want to check to see if you can display content
+ * in the local character set.
+ */
char *get_charset(void);
-char *getcpy (char *);
+
+char *getcpy (const char *);
char *get_default_editor(void);
char *getfolder(int);
-int lkclose(int, char*);
-int lkfclose(FILE *, char *);
-FILE *lkfopen(char *, char *);
-int lkopen(char *, int, mode_t);
+
+/*
+ * Get a string from the terminfo database for the current terminal.
+ *
+ * Retrieve the specified terminfo capability and return a string that
+ * can be output to the terminal. The string returned has already been
+ * processed by tputs(), so it is safe to output directly. The return
+ * value of this function is valid until the next call.
+ *
+ * Arguments:
+ *
+ * capability - The name of the terminfo capability (see terminfo(5)).
+ *
+ * Returns a tputs-processed string, or NULL if terminal initialization failed
+ * or the capability wasn't found.
+ */
+char *get_term_stringcap(char *capability);
+
+/*
+ * Get a parameterized string from the terminfo database for the current
+ * terminal.
+ *
+ * We don't yet have a standardized tparm() that will take a stdarg
+ * argument. Right now we don't want many parameters, so we only
+ * take two. Everything gets passed to tparm() as-is. If we need
+ * a capability with more arguments, we'll just add more later.
+ *
+ * Arguments:
+ *
+ * capability - The name of the terminfo capability (see terminfo(5)).
+ * arg1..argN - Arguments 1-N.
+ *
+ * Returns a tparm and tputs-processed string, or NULL if there was a problem
+ * initializating the terminal or retrieving the capability.
+ */
+char *get_term_stringparm(char *capability, long arg1, long arg2);
+
+/*
+ * Get a number from the terminfo database for the current terminal.
+ *
+ * Retrieve the specified terminfo capability and return the numeric
+ * value of that capability from the terminfo database.
+ *
+ * Arguments:
+ *
+ * capability - The name of the terminfo capability (see terminfo(5)).
+ *
+ * Returns the output of tigetnum() for that capability, or -1 if it was
+ * unable to initialize the terminfo database.
+ */
+int get_term_numcap(char *capability);
+
+/*
+ * Lock open/close routines.
+ *
+ * The lk[f]opendata() functions are designed to open "data" files (anything
+ * not a mail spool file) using the locking mechanism configured for data
+ * files. The lk[f]openspool() functions are for opening the mail spool
+ * file, which will use the locking algorithm configured for the mail
+ * spool.
+ *
+ * Files opened for reading are locked with a read lock (if possible by
+ * the underlying lock mechanism), files opened for writing are locked
+ * using an exclusive lock. The int * argument is used to indicate failure
+ * to acquire a lock.
+ */
+int lkclosedata(int, const char *);
+int lkclosespool(int, const char *);
+int lkfclosedata(FILE *, const char *);
+int lkfclosespool(FILE *, const char *);
+FILE *lkfopendata(const char *, const char *, int *);
+int lkopendata(const char *, int, mode_t, int *);
+FILE *lkfopenspool(const char *, const char *);
+int lkopenspool(const char *, int, mode_t, int *);
int m_atoi (char *);
-char *m_backup (char *);
+char *m_backup (const char *);
int m_convert (struct msgs *, char *);
char *m_draft (char *, char *, int, int *);
-void m_eomsbr (m_getfld_state_t, int (*)(int));
void m_getfld_state_reset (m_getfld_state_t *);
void m_getfld_state_destroy (m_getfld_state_t *);
void m_getfld_track_filepos (m_getfld_state_t *, FILE *);
int m_rand (unsigned char *, size_t);
char *m_mktemp(const char *, int *, FILE **);
char *m_mktemp2(const char *, const char *, int *, FILE **);
+char *m_mktemps(const char *pfx, const char *suffix, int *, FILE **);
+char *get_temp_dir();
+
+/*
+ * Create a subprocess and redirect our standard output to it.
+ *
+ * Arguments are:
+ *
+ * name - Name of process to create
+ * savestdout - If true, will save the current stdout file descriptor and
+ * m_pclose() will close it at the appropriate time.
+ */
+void m_popen(char *name, int savestdout);
+
+/*
+ * Wait for the last process opened by m_popen().
+ */
+void m_pclose(void);
+
void m_unknown(m_getfld_state_t *, FILE *);
-int makedir (char *);
+int makedir (const char *);
char *message_id (time_t, int);
+
+/*
+ * Return a MIME content-type string for the specified file.
+ *
+ * If the system supports it, will use the "file" command to determine
+ * the appropriate content-type. Otherwise it will try to determine the
+ * content-type from the suffix. If that fails, the file will be scanned
+ * and either assigned a MIME type of text/plain or application/octet-stream
+ * depending if binary content is present.
+ *
+ * Arguments:
+ *
+ * filename - The name of the file to determine the MIME type of.
+ *
+ * Returns a pointer to a content-type string (which may include MIME
+ * parameters, such as charset). Returns a NULL if it cannot determine
+ * the MIME type of the file. Returns allocated storage that must be
+ * free'd.
+ */
+char *mime_type(const char *filename);
+
+/*
+ * Clear the screen, using the appropriate entry from the terminfo database
+ */
+void nmh_clear_screen(void);
char *nmh_getpass(const char *);
-char *norm_charmap(char *);
char *new_fs (char *, char *, char *);
char *path(char *, int);
int peekc(FILE *ib);
int pidstatus (int, FILE *, char *);
char *pluspath(char *);
void print_help (char *, struct swit *, int);
-void print_sw (char *, struct swit *, char *, FILE *);
+void print_sw (const char *, const struct swit *, char *, FILE *);
void print_version (char *);
void push (void);
char *pwd (void);
char *r1bindex(char *, int);
-void readconfig (struct node **, FILE *, char *, int);
+void readconfig (struct node **, FILE *, const char *, int);
int refile (char **, char *);
-void ruserpass(char *, char **, char **);
+void ruserpass (char *, char **, char **);
int remdir (char *);
void scan_detect_mbox_style (FILE *);
void scan_finished ();
-void scan_eom_action (int (*)());
void scan_reset_m_getfld_state ();
int seq_addmsg (struct msgs *, char *, int, int, int);
int seq_addsel (struct msgs *, char *, int, int);
int seq_nameok (char *);
void seq_print (struct msgs *, char *);
void seq_printall (struct msgs *);
-void seq_read (struct msgs *);
+
+/*
+ * Read the sequence files for the folder referenced in the given
+ * struct msgs and populate the sequence entries in the struct msgs.
+ *
+ * Arguments:
+ *
+ * mp - Folder structure to add sequence entries to
+ * lockflag - If true, obtain a write lock on the sequence file.
+ * Additionally, the sequence file will remain open
+ * and a pointer to the filehandle will be stored in
+ * folder structure, where it will later be used by
+ * seq_save().
+ *
+ * Return values:
+ * OK - successfully read the sequence files, or they don't exist
+ * NOTOK - failed to lock sequence file
+ */
+int seq_read (struct msgs * mp, int lockflag);
void seq_save (struct msgs *);
void seq_setcur (struct msgs *, int);
void seq_setprev (struct msgs *);
void seq_setunseen (struct msgs *, int);
int showfile (char **, char *);
-int smatch(char *, struct swit *);
-char *snprintb (char *, size_t, unsigned, char *);
-int ssequal (char *, char *);
+int smatch(const char *, const struct swit *);
+
+/*
+ * Convert a set of bit flags to printable format.
+ *
+ * Arguments:
+ *
+ * buffer - Buffer to output string to.
+ * size - Size of buffer in bytes. Buffer is always NUL terminated.
+ * flags - Binary flags to output
+ * bitfield - Textual representation of bits to output. This string
+ * is in the following format:
+ *
+ * Option byte 0x01 STRING1 0x02 STRING2 ....
+ *
+ * The first byte is an option byte to snprintb(). Currently the only option
+ * supported is 0x08, which indicates that the flags should be output in
+ * octal format; if the option byte is any other value, the flags will be
+ * output in hexadecimal.
+ *
+ * After the option bytes are series of text strings, prefixed by the number
+ * of the bit they correspond to. For example, the bitfield string:
+ *
+ * "\020\01FLAG1\02FLAG2\03FLAG3\04FLAG4"
+ *
+ * will output the following string if "flags" is set to 0x09:
+ *
+ * 0x2<FLAG1,FLAG4>
+ *
+ * You don't have to use octal in the bitfield string, that's just the
+ * convention currently used by the nmh code. The order of flags in the
+ * bitfield string is not significant, but again, general convention is
+ * from least significant bit to most significant.
+ */
+char *snprintb (char *buffer, size_t size, unsigned flags, char *bitfield);
+int ssequal (const char *, const char *);
int stringdex (char *, char *);
char *trimcpy (char *);
int unputenv (char *);
-int uprf (char *, char *);
+
+/*
+ * Remove quotes and quoted-pair sequences from RFC-5322 atoms.
+ *
+ * Currently the actual algorithm is simpler than it technically should
+ * be: any quotes are simply eaten, unless they're preceded by the escape
+ * character (\). This seems to be sufficient for our needs for now.
+ *
+ * Arguments:
+ *
+ * input - The input string
+ * output - The output string; is assumed to have at least as much
+ * room as the input string. At worst the output string will
+ * be the same size as the input string; it might be smaller.
+ *
+ */
+void unquote_string(const char *input, char *output);
+int uprf (const char *, const char *);
int vfgets (FILE *, char **);
-char *write_charset_8bit (void);
-int mh_strcasecmp (const char *s1, const char *s2);
-int strncasecmp (const char *s1, const char *s2, size_t n);
+/*
+ * Output the local character set name, but make sure it is suitable for
+ * 8-bit characters.
+ */
+char *write_charset_8bit (void);
/*
int annotate (char *, char *, char *, int, int, int, int);
void annolist(char *, char *, char *, int);
void annopreserve(int);
-void clear_screen(void);
void m_pclose(void);
int make_intermediates(char *);
int mhl(int, char **);
int distout (char *, char *, char *);
void replout (FILE *, char *, char *, struct msgs *, int,
int, char *, char *, char *, int);
-int sc_hardcopy(void);
int sc_length(void);
int sc_width(void);
int build_form (char *, char *, int *, char *, char *, char *, char *,
char *, char *);
-int sendsbr (char **, int, char *, char *, struct stat *, int, char *, int);
+int sendsbr (char **, int, char *, char *, struct stat *, int, const char *);
int SOprintf (char *, ...);
int what_now (char *, int, int, char *, char *,
int, struct msgs *, char *, int, char *, int);
int WhatNow(int, char **);
-int writeBase64aux(FILE *, FILE *);
+
+/*
+ * Copy data from one file to another, converting to base64-encoding.
+ *
+ * Arguments include:
+ *
+ * in - Input filehandle (unencoded data)
+ * out - Output filename (base64-encoded data)
+ * crlf - If set, output encoded CRLF for every LF on input.
+ *
+ * Returns OK on success, NOTOK otherwise.
+ */
+int writeBase64aux(FILE *in, FILE *out, int crlf);
+
int writeBase64 (unsigned char *, size_t, unsigned char *);
+int writeBase64raw (unsigned char *, size_t, unsigned char *);
+
+/*
+ * first argument: the string to be decoded
+ * second argument: the decoded bytes
+ * third argument: number of decoded bytes
+ * fourth argument: non-zero for text content, and for which CR's should be skipped
+ * fifth argument: for an MD5 digest, it can be null
+ */
+int decodeBase64 (const char *, const char **, size_t *, int, unsigned char *);
+
+void hexify (const unsigned char *, size_t, char **);
+
+/*
+ * credentials management
+ */
+void init_credentials_file ();
+int nmh_get_credentials (char *, char *, int, nmh_creds_t);
+
+/*
+ * temporary file management
+ */
+int nmh_init(const char *argv0, int read_context);
+int m_unlink(const char *);
+void unregister_for_removal(int remove_files);
projects / nmh / blobdiff