/*
* mhshow.c -- display the contents of MIME messages
*
* $Id: mhshow.c,v 1.8 2003/09/30 16:58:43 gbburkhardt Exp $
*
* This code is Copyright (c) 2002, by the authors of nmh. See the
* COPYRIGHT file in the root directory of the nmh distribution for
* complete copyright information.
*/
#include <h/mh.h>
#include <fcntl.h>
#include <h/signals.h>
#include <h/md5.h>
#include <errno.h>
#include <signal.h>
#include <h/mts.h>
#include <h/tws.h>
#include <h/mime.h>
#include <h/mhparse.h>
#include <h/mhcachesbr.h>
#ifdef HAVE_SYS_WAIT_H
# include <sys/wait.h>
#endif
/*
* We allocate space for message names (msgs array)
* this number of elements at a time.
*/
#define MAXMSGS 256
static struct swit switches[] = {
#define CHECKSW 0
{ "check", 0 },
#define NCHECKSW 1
{ "nocheck", 0 },
#define PAUSESW 2
{ "pause", 0 },
#define NPAUSESW 3
{ "nopause", 0 },
#define SERIALSW 4
{ "serialonly", 0 },
#define NSERIALSW 5
{ "noserialonly", 0 },
#define VERBSW 6
{ "verbose", 0 },
#define NVERBSW 7
{ "noverbose", 0 },
#define FILESW 8 /* interface from show */
{ "file file", 0 },
#define FORMSW 9
{ "form formfile", 0 },
#define PARTSW 10
{ "part number", 0 },
#define TYPESW 11
{ "type content", 0 },
#define RCACHESW 12
{ "rcache policy", 0 },
#define WCACHESW 13
{ "wcache policy", 0 },
#define VERSIONSW 14
{ "version", 0 },
#define HELPSW 15
{ "help", 0 },
/*
* switches for moreproc/mhlproc
*/
#define PROGSW 16
{ "moreproc program", -4 },
#define NPROGSW 17
{ "nomoreproc", -3 },
#define LENSW 18
{ "length lines", -4 },
#define WIDTHSW 19
{ "width columns", -4 },
/*
* switches for debugging
*/
#define DEBUGSW 20
{ "debug", -5 },
{ NULL, 0 }
};
/* mhparse.c */
extern int checksw;
extern char *tmp; /* directory to place temp files */
/* mhcachesbr.c */
extern int rcachesw;
extern int wcachesw;
extern char *cache_public;
extern char *cache_private;
/* mhshowsbr.c */
extern int pausesw;
extern int serialsw;
extern char *progsw;
extern int nolist;
extern int nomore; /* flags for moreproc/header display */
extern char *formsw;
/* mhmisc.c */
extern int npart;
extern int ntype;
extern char *parts[NPARTS + 1];
extern char *types[NTYPES + 1];
extern int userrs;
int debugsw = 0;
int verbosw = 0;
/* The list of top-level contents to display */
CT *cts = NULL;
#define quitser pipeser
/* mhparse.c */
CT parse_mime (char *);
/* mhmisc.c */
int part_ok (CT, int);
int type_ok (CT, int);
void set_endian (void);
void flush_errors (void);
/* mhshowsbr.c */
void show_all_messages (CT *);
/* mhfree.c */
void free_content (CT);
/*
* static prototypes
*/
static RETSIGTYPE pipeser (int);
int
main (int argc, char **argv)
{
int nummsgs, maxmsgs, msgnum, *icachesw;
char *cp, *file = NULL, *folder = NULL;
char *maildir, buf[100], **argp;
char **arguments, **msgs;
struct msgs *mp = NULL;
CT ct, *ctp;
FILE *fp;
#ifdef LOCALE
setlocale(LC_ALL, "");
#endif
invo_name = r1bindex (argv[0], '/');
/* read user profile/context */
context_read();
arguments = getarguments (invo_name, argc, argv, 1);
argp = arguments;
/*
* Allocate the initial space to record message
* names, ranges, and sequences.
*/
nummsgs = 0;
maxmsgs = MAXMSGS;
if (!(msgs = (char **) malloc ((size_t) (maxmsgs * sizeof(*msgs)))))
adios (NULL, "unable to allocate storage");
/*
* Parse arguments
*/
while ((cp = *argp++)) {
if (*cp == '-') {
switch (smatch (++cp, switches)) {
case AMBIGSW:
ambigsw (cp, switches);
done (1);
case UNKWNSW:
adios (NULL, "-%s unknown", cp);
case HELPSW:
snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
invo_name);
print_help (buf, switches, 1);
done (1);
case VERSIONSW:
print_version(invo_name);
done (1);
case RCACHESW:
icachesw = &rcachesw;
goto do_cache;
case WCACHESW:
icachesw = &wcachesw;
do_cache:
if (!(cp = *argp++) || *cp == '-')
adios (NULL, "missing argument to %s", argp[-2]);
switch (*icachesw = smatch (cp, caches)) {
case AMBIGSW:
ambigsw (cp, caches);
done (1);
case UNKWNSW:
adios (NULL, "%s unknown", cp);
default:
break;
}
continue;
case CHECKSW:
checksw++;
continue;
case NCHECKSW:
checksw = 0;
continue;
case PAUSESW:
pausesw = 1;
continue;
case NPAUSESW:
pausesw = 0;
continue;
case SERIALSW:
serialsw = 1;
continue;
case NSERIALSW:
serialsw = 0;
continue;
case PARTSW:
if (!(cp = *argp++) || *cp == '-')
adios (NULL, "missing argument to %s", argp[-2]);
if (npart >= NPARTS)
adios (NULL, "too many parts (starting with %s), %d max",
cp, NPARTS);
parts[npart++] = cp;
continue;
case TYPESW:
if (!(cp = *argp++) || *cp == '-')
adios (NULL, "missing argument to %s", argp[-2]);
if (ntype >= NTYPES)
adios (NULL, "too many types (starting with %s), %d max",
cp, NTYPES);
types[ntype++] = cp;
continue;
case FILESW:
if (!(cp = *argp++) || (*cp == '-' && cp[1]))
adios (NULL, "missing argument to %s", argp[-2]);
file = *cp == '-' ? cp : path (cp, TFILE);
continue;
case FORMSW:
if (!(cp = *argp++) || *cp == '-')
adios (NULL, "missing argument to %s", argp[-2]);
if (formsw)
free (formsw);
formsw = getcpy (etcpath (cp));
continue;
/*
* Switches for moreproc/mhlproc
*/
case PROGSW:
if (!(progsw = *argp++) || *progsw == '-')
adios (NULL, "missing argument to %s", argp[-2]);
continue;
case NPROGSW:
nomore++;
continue;
case LENSW:
case WIDTHSW:
if (!(cp = *argp++) || *cp == '-')
adios (NULL, "missing argument to %s", argp[-2]);
continue;
case VERBSW:
verbosw = 1;
continue;
case NVERBSW:
verbosw = 0;
continue;
case DEBUGSW:
debugsw = 1;
continue;
}
}
if (*cp == '+' || *cp == '@') {
if (folder)
adios (NULL, "only one folder at a time!");
else
folder = path (cp + 1, *cp == '+' ? TFOLDER : TSUBCWF);
} else {
/*
* Check if we need to allocate more space
* for message names/ranges/sequences.
*/
if (nummsgs >= maxmsgs) {
maxmsgs += MAXMSGS;
if (!(msgs = (char **) realloc (msgs,
(size_t) (maxmsgs * sizeof(*msgs)))))
adios (NULL, "unable to reallocate msgs storage");
}
msgs[nummsgs++] = cp;
}
}
/* null terminate the list of acceptable parts/types */
parts[npart] = NULL;
types[ntype] = NULL;
set_endian ();
if ((cp = getenv ("MM_NOASK")) && !strcmp (cp, "1")) {
nolist = 1;
pausesw = 0;
}
/*
* Check if we've specified an additional profile
*/
if ((cp = getenv ("MHSHOW"))) {
if ((fp = fopen (cp, "r"))) {
readconfig ((struct node **) 0, fp, cp, 0);
fclose (fp);
} else {
admonish ("", "unable to read $MHSHOW profile (%s)", cp);
}
}
/*
* Read the standard profile setup
*/
if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
readconfig ((struct node **) 0, fp, cp, 0);
fclose (fp);
}
/* Check for public cache location */
if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
cache_public = NULL;
/* Check for private cache location */
if (!(cache_private = context_find (nmhprivcache)))
cache_private = ".cache";
cache_private = getcpy (m_maildir (cache_private));
/*
* Check for storage directory. If specified,
* then store temporary files there. Else we
* store them in standard nmh directory.
*/
if ((cp = context_find (nmhstorage)) && *cp)
tmp = concat (cp, "/", invo_name, NULL);
else
tmp = add (m_maildir (invo_name), NULL);
if (!context_find ("path"))
free (path ("./", TFOLDER));
if (file && nummsgs)
adios (NULL, "cannot specify msg and file at same time!");
/*
* check if message is coming from file
*/
if (file) {
if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
adios (NULL, "out of memory");
ctp = cts;
if ((ct = parse_mime (file)));
*ctp++ = ct;
} else {
/*
* message(s) are coming from a folder
*/
if (!nummsgs)
msgs[nummsgs++] = "cur";
if (!folder)
folder = getfolder (1);
maildir = m_maildir (folder);
if (chdir (maildir) == NOTOK)
adios (maildir, "unable to change directory to");
/* read folder and create message structure */
if (!(mp = folder_read (folder)))
adios (NULL, "unable to read folder %s", folder);
/* check for empty folder */
if (mp->nummsg == 0)
adios (NULL, "no messages in %s", folder);
/* parse all the message ranges/sequences and set SELECTED */
for (msgnum = 0; msgnum < nummsgs; msgnum++)
if (!m_convert (mp, msgs[msgnum]))
done (1);
/*
* Set the SELECT_UNSEEN bit for all the SELECTED messages,
* since we will use that as a tag to know which messages
* to remove from the "unseen" sequence.
*/
for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
if (is_selected(mp, msgnum))
set_unseen (mp, msgnum);
seq_setprev (mp); /* set the Previous-Sequence */
seq_setunseen (mp, 1); /* unset the Unseen-Sequence */
if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
adios (NULL, "out of memory");
ctp = cts;
/*
* Parse all the SELECTED messages.
*/
for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
if (is_selected(mp, msgnum)) {
char *msgnam;
msgnam = m_name (msgnum);
if ((ct = parse_mime (msgnam)))
*ctp++ = ct;
}
}
}
if (!*cts)
done (1);
userrs = 1;
SIGNAL (SIGQUIT, quitser);
SIGNAL (SIGPIPE, pipeser);
/*
* Get the associated umask for the relevant contents.
*/
for (ctp = cts; *ctp; ctp++) {
struct stat st;
ct = *ctp;
if (type_ok (ct, 1) && !ct->c_umask) {
if (stat (ct->c_file, &st) != NOTOK)
ct->c_umask = ~(st.st_mode & 0777);
else
ct->c_umask = ~m_gmprot();
}
}
/*
* Show the message content
*/
show_all_messages (cts);
/* Now free all the structures for the content */
for (ctp = cts; *ctp; ctp++)
free_content (*ctp);
free ((char *) cts);
cts = NULL;
/* If reading from a folder, do some updating */
if (mp) {
context_replace (pfolder, folder);/* update current folder */
seq_setcur (mp, mp->hghsel); /* update current message */
seq_save (mp); /* synchronize sequences */
context_save (); /* save the context file */
}
return done (0);
}
static RETSIGTYPE
pipeser (int i)
{
if (i == SIGQUIT) {
unlink ("core");
fflush (stdout);
fprintf (stderr, "\n");
fflush (stderr);
}
done (1);
/* NOTREACHED */
}
int
done (int status)
{
CT *ctp;
if ((ctp = cts))
for (; *ctp; ctp++)
free_content (*ctp);
exit (status);
return 1; /* dead code to satisfy the compiler */
}
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