3 * mh.h -- main header file for all of nmh
11 #define NOTOK (-1) /* syscall()s return this on error */
12 #define OK 0 /* ditto on success */
13 #define DONE 1 /* trinary logic */
15 #define Nbby 8 /* number of bits/byte */
17 #define MAXARGS 1000 /* max arguments to exec */
18 #define NFOLDERS 1000 /* max folder arguments on command line */
19 #define DMAXFOLDER 4 /* typical number of digits */
20 #define MAXFOLDER 1000 /* message increment */
28 typedef unsigned char boolean; /* not int so we can pack in a structure */
30 /* If we're using gcc then give it some information about
31 * functions that abort.
34 #define NORETURN __attribute__((__noreturn__))
40 * user context/profile structure
43 char *n_name; /* key */
44 char *n_field; /* value */
45 char n_context; /* context, not profile */
46 struct node *n_next; /* next entry */
52 #define AMBIGSW (-2) /* from smatch() on ambiguous switch */
53 #define UNKWNSW (-1) /* from smatch() on unknown switch */
58 /* The minchars field is apparently used like this:
60 -# : Switch can be abbreviated to # characters; switch hidden in -help.
61 0 : Switch can't be abbreviated; switch shown in -help.
62 # : Switch can be abbreviated to # characters; switch shown in -help. */
66 extern struct swit anoyes[]; /* standard yes/no switches */
68 #define ATTACHFORMATS 3 /* Number of send attach formats. */
71 * general folder attributes
73 #define READONLY (1<<0) /* No write access to folder */
74 #define SEQMOD (1<<1) /* folder's sequences modifed */
75 #define ALLOW_NEW (1<<2) /* allow the "new" sequence */
76 #define OTHERS (1<<3) /* folder has other files */
78 #define FBITS "\020\01READONLY\02SEQMOD\03ALLOW_NEW\04OTHERS"
81 * type for holding the sequence set of a message
83 typedef unsigned int seqset_t;
86 * Determine the number of user defined sequences we
87 * can have. The first 5 sequence flags are for
88 * internal nmh message flags.
90 #define NUMATTRS ((sizeof(seqset_t) * Nbby) - 5)
93 * first free slot for user defined sequences
99 * internal messages attributes (sequences)
101 #define EXISTS (1<<0) /* exists */
102 #define DELETED (1<<1) /* deleted */
103 #define SELECTED (1<<2) /* selected for use */
104 #define SELECT_EMPTY (1<<3) /* "new" message */
105 #define SELECT_UNSEEN (1<<4) /* inc/show "unseen" */
107 #define MBITS "\020\01EXISTS\02DELETED\03SELECTED\04NEW\05UNSEEN"
110 * Primary structure of folder/message information
113 int lowmsg; /* Lowest msg number */
114 int hghmsg; /* Highest msg number */
115 int nummsg; /* Actual Number of msgs */
117 int lowsel; /* Lowest selected msg number */
118 int hghsel; /* Highest selected msg number */
119 int numsel; /* Number of msgs selected */
121 int curmsg; /* Number of current msg if any */
123 int msgflags; /* Folder attributes (READONLY, etc) */
124 char *foldpath; /* Pathname of folder */
127 * Name of sequences in this folder. We add an
128 * extra slot, so we can NULL terminate the list.
130 char *msgattrs[NUMATTRS + 1];
133 * bit flags for whether sequence
134 * is public (0), or private (1)
139 * These represent the lowest and highest possible
140 * message numbers we can put in the message status
141 * area, without calling folder_realloc().
147 * This is an array of seqset_t which we allocate dynamically.
148 * Each seqset_t is a set of bits flags for a particular message.
149 * These bit flags represent general attributes such as
150 * EXISTS, SELECTED, etc. as well as track if message is
151 * in a particular sequence.
153 seqset_t *msgstats; /* msg status */
157 * Amount of space to allocate for msgstats. Allocate
158 * the array to have space for messages numbers lo to hi.
160 #define MSGSTATSIZE(mp,lo,hi) ((size_t) (((hi) - (lo) + 1) * sizeof(*(mp)->msgstats)))
163 * macros for message and sequence manipulation
165 #define clear_msg_flags(mp,msgnum) ((mp)->msgstats[(msgnum) - mp->lowoff] = 0)
166 #define copy_msg_flags(mp,i,j) \
167 ((mp)->msgstats[(i) - mp->lowoff] = (mp)->msgstats[(j) - mp->lowoff])
168 #define get_msg_flags(mp,ptr,msgnum) (*(ptr) = (mp)->msgstats[(msgnum) - mp->lowoff])
169 #define set_msg_flags(mp,ptr,msgnum) ((mp)->msgstats[(msgnum) - mp->lowoff] = *(ptr))
171 #define does_exist(mp,msgnum) ((mp)->msgstats[(msgnum) - mp->lowoff] & EXISTS)
172 #define unset_exists(mp,msgnum) ((mp)->msgstats[(msgnum) - mp->lowoff] &= ~EXISTS)
173 #define set_exists(mp,msgnum) ((mp)->msgstats[(msgnum) - mp->lowoff] |= EXISTS)
175 #define is_selected(mp,msgnum) ((mp)->msgstats[(msgnum) - mp->lowoff] & SELECTED)
176 #define unset_selected(mp,msgnum) ((mp)->msgstats[(msgnum) - mp->lowoff] &= ~SELECTED)
177 #define set_selected(mp,msgnum) ((mp)->msgstats[(msgnum) - mp->lowoff] |= SELECTED)
179 #define is_select_empty(mp,msgnum) ((mp)->msgstats[(msgnum) - mp->lowoff] & SELECT_EMPTY)
180 #define set_select_empty(mp,msgnum) \
181 ((mp)->msgstats[(msgnum) - mp->lowoff] |= SELECT_EMPTY)
183 #define is_unseen(mp,msgnum) ((mp)->msgstats[(msgnum) - mp->lowoff] & SELECT_UNSEEN)
184 #define unset_unseen(mp,msgnum) ((mp)->msgstats[(msgnum) - mp->lowoff] &= ~SELECT_UNSEEN)
185 #define set_unseen(mp,msgnum) ((mp)->msgstats[(msgnum) - mp->lowoff] |= SELECT_UNSEEN)
188 #define in_sequence(mp,seqnum,msgnum) \
189 ((mp)->msgstats[(msgnum) - mp->lowoff] & (1 << (FFATTRSLOT + seqnum)))
190 #define clear_sequence(mp,seqnum,msgnum) \
191 ((mp)->msgstats[(msgnum) - mp->lowoff] &= ~(1 << (FFATTRSLOT + seqnum)))
192 #define add_sequence(mp,seqnum,msgnum) \
193 ((mp)->msgstats[(msgnum) - mp->lowoff] |= (1 << (FFATTRSLOT + seqnum)))
195 #define is_seq_private(mp,seqnum) \
196 ((mp)->attrstats & (1 << (FFATTRSLOT + seqnum)))
197 #define make_seq_public(mp,seqnum) \
198 ((mp)->attrstats &= ~(1 << (FFATTRSLOT + seqnum)))
199 #define make_seq_private(mp,seqnum) \
200 ((mp)->attrstats |= (1 << (FFATTRSLOT + seqnum)))
201 #define make_all_public(mp) \
202 ((mp)->attrstats = 0)
205 * macros for folder attributes
207 #define clear_folder_flags(mp) ((mp)->msgflags = 0)
209 #define is_readonly(mp) ((mp)->msgflags & READONLY)
210 #define set_readonly(mp) ((mp)->msgflags |= READONLY)
212 #define other_files(mp) ((mp)->msgflags & OTHERS)
213 #define set_other_files(mp) ((mp)->msgflags |= OTHERS)
215 #define NULLMP ((struct msgs *) 0)
218 * m_getfld() message parsing
221 #define NAMESZ 999 /* Limit on component name size.
222 RFC 2822 limits line lengths to
223 998 characters, so a header name
224 can be at most that long.
225 m_getfld limits header names to 2
226 less than NAMESZ, which is fine,
227 because header names must be
228 followed by a colon. Add one for
231 #define LENERR (-2) /* Name too long error from getfld */
232 #define FMTERR (-3) /* Message Format error */
233 #define FLD 0 /* Field returned */
234 #define FLDPLUS 1 /* Field returned with more to come */
235 #define FLDEOF 2 /* Field returned ending at eom */
236 #define BODY 3 /* Body returned with more to come */
237 #define BODYEOF 4 /* Body returned ending at eom */
238 #define FILEEOF 5 /* Reached end of input file */
243 #define MS_DEFAULT 0 /* default (one msg per file) */
244 #define MS_UNKNOWN 1 /* type not known yet */
245 #define MS_MBOX 2 /* Unix-style "from" lines */
246 #define MS_MMDF 3 /* string mmdlm2 */
248 extern int msg_count; /* m_getfld() indicators */
249 extern int msg_style; /* .. */
250 extern char *msg_delim; /* .. */
252 #define NOUSE 0 /* draft being re-used */
254 #define TFOLDER 0 /* path() given a +folder */
255 #define TFILE 1 /* path() given a file */
256 #define TSUBCWF 2 /* path() given a @folder */
258 #define OUTPUTLINELEN 72 /* default line length for headers */
261 * miscellaneous macros
263 #define pidXwait(pid,cp) pidstatus (pidwait (pid, NOTOK), stdout, cp)
266 # define max(a,b) ((a) > (b) ? (a) : (b))
270 # define min(a,b) ((a) < (b) ? (a) : (b))
274 # define abs(a) ((a) > 0 ? (a) : -(a))
280 #define CTXMOD 0x01 /* context information modified */
281 #define DBITS "\020\01CTXMOD"
282 extern char ctxflags;
284 extern char *invo_name; /* command invocation name */
285 extern char *mypath; /* user's $HOME */
286 extern char *defpath; /* pathname of user's profile */
287 extern char *ctxpath; /* pathname of user's context */
288 extern struct node *m_defs; /* list of profile/context entries */
291 * These standard strings are defined in config.c. They are the
292 * only system-dependent parameters in nmh, and thus by redefining
293 * their values and reloading the various modules, nmh will run
296 extern char *buildmimeproc;
297 extern char *backup_prefix;
298 extern char *altmsglink;
299 extern char *catproc;
300 extern char *components;
301 extern char *context;
302 extern char *current;
303 extern char *defaulteditor;
304 extern char *defaultfolder;
305 extern char *digestcomps;
306 extern char *distcomps;
308 extern char *faceproc;
309 extern char *fileproc;
310 extern char *foldprot;
311 extern char *forwcomps;
313 extern char *incproc;
314 extern char *installproc;
316 extern char *mailproc;
317 extern char *mh_defaults;
318 extern char *mh_profile;
320 extern char *mhlformat;
321 extern char *mhlforward;
322 extern char *mhlproc;
323 extern char *mhlreply;
324 extern char *moreproc;
325 extern char *msgprot;
326 extern char *nmhaccessftp;
327 extern char *nmhstorage;
328 extern char *nmhcache;
329 extern char *nmhprivcache;
330 extern char *nsequence;
331 extern char *packproc;
332 extern char *postproc;
333 extern char *pfolder;
334 extern char *psequence;
335 extern char *rcvdistcomps;
336 extern char *rcvstoreproc;
337 extern char *replcomps;
338 extern char *replgroupcomps;
339 extern char *rmfproc;
340 extern char *rmmproc;
341 extern char *sendmail;
342 extern char *sendproc;
343 extern char *showmimeproc;
344 extern char *showproc;
345 extern char *usequence;
346 extern char *version_num;
347 extern char *version_str;
348 extern char *whatnowproc;
349 extern char *whomproc;
351 extern void (*done) (int) NORETURN;
353 #include <h/prototypes.h>