struct msgs_array;
void add_profile_entry (const char *, const char *);
-void adios (char *, char *, ...) NORETURN;
+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.
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 (const char *);
+
+/* Return malloc'd copy of str, or of "" if NULL, exit on failure. */
+char *getcpy(const char *str);
+
char *get_default_editor(void);
char *getfolder(int);
*
* 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.
+ * 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 lkopendata(const char *, int, mode_t);
+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 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 *);
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);
/*
*/
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_intro (FILE *, int);
+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 **);
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);
* 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
*/
-void seq_read (struct msgs * mp, int lockflag);
+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 *);
+int smatch(const char *, const struct swit *);
/*
* Convert a set of bit flags to printable format.
* from least significant bit to most significant.
*/
char *snprintb (char *buffer, size_t size, unsigned flags, char *bitfield);
-int ssequal (char *, char *);
+int ssequal (const char *, const char *);
int stringdex (char *, char *);
char *trimcpy (char *);
int unputenv (char *);
*
*/
void unquote_string(const char *input, char *output);
-int uprf (char *, char *);
+int uprf (const char *, const char *);
int vfgets (FILE *, char **);
+
+/*
+ * Output the local character set name, but make sure it is suitable for
+ * 8-bit characters.
+ */
char *write_charset_8bit (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);
+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 **);
+/* Includes trailing NUL */
+
+#define BASE64SIZE(x) ((((x + 2) / 3) * 4) + 1)
+
/*
* Copy data from one file to another, converting to base64-encoding.
*
*/
int writeBase64aux(FILE *in, FILE *out, int crlf);
-int writeBase64 (unsigned char *, size_t, unsigned char *);
-int writeBase64raw (unsigned char *, size_t, unsigned char *);
+int writeBase64 (const unsigned char *, size_t, unsigned char *);
+int writeBase64raw (const unsigned char *, size_t, unsigned char *);
+
+/*
+ * encoded - the string to be decoded
+ * decoded - the decoded bytes
+ * len - number of decoded bytes
+ * skip-crs - non-zero for text content, and for which CR's should be
+ * skipped
+ * digest - for an MD5 digest, it can be null
+ */
+int decodeBase64 (const char *encoded, unsigned char **decoded, size_t *len,
+ int skip_crs, unsigned char *digest);
+
+void hexify (const unsigned char *, size_t, char **);
/*
* credentials management
int nmh_get_credentials (char *, char *, int, nmh_creds_t);
/*
- * temporary file management
+ * program initialization
+ *
+ * argv0 - argv[0], presumably the program name
+ * read_context - 0: don't read context
+ * - 1: read context, check nmh version, and issue warning message
+ * if non-existent or old
+ * - 2: read context, don't check nmh version
*/
int nmh_init(const char *argv0, int read_context);
+
+/*
+ * temporary file management
+ */
int m_unlink(const char *);
void unregister_for_removal(int remove_files);