/*
- * mhshow.c -- display the contents of MIME messages
- *
- * 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.
- */
+** mhshow.c -- display the contents of MIME messages
+**
+** 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>
#include <h/utils.h>
-
-#ifdef HAVE_SYS_WAIT_H
-# include <sys/wait.h>
-#endif
+#include <unistd.h>
+#include <sys/stat.h>
+#include <locale.h>
+#include <sysexits.h>
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
+#define VERBSW 0
{ "verbose", 0 },
-#define NVERBSW 7
- { "noverbose", 0 },
-#define FILESW 8 /* interface from show */
+#define NVERBSW 1
+ { "noverbose", 2 },
+#define FILESW 2 /* interface from show */
{ "file file", 0 },
-#define FORMSW 9
+#define FORMSW 3
{ "form formfile", 0 },
-#define PARTSW 10
+#define PARTSW 4
{ "part number", 0 },
-#define TYPESW 11
+#define TYPESW 5
{ "type content", 0 },
-#define RCACHESW 12
- { "rcache policy", 0 },
-#define WCACHESW 13
- { "wcache policy", 0 },
-#define VERSIONSW 14
- { "version", 0 },
-#define HELPSW 15
+#define VERSIONSW 6
+ { "Version", 0 },
+#define HELPSW 7
{ "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
+#define DEBUGSW 8
{ "debug", -5 },
{ NULL, 0 }
};
/* mhparse.c */
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 char *types[NTYPES + 1];
extern int userrs;
+static enum { SHOW, NEXT, PREV } mode = SHOW;
+
int debugsw = 0;
int verbosw = 0;
#define quitser pipeser
/* mhparse.c */
-CT parse_mime (char *);
+CT parse_mime(char *);
/* mhmisc.c */
-int part_ok (CT, int);
-int type_ok (CT, int);
-void set_endian (void);
-void flush_errors (void);
+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 *);
+void show_all_messages(CT *);
/* mhfree.c */
-void free_content (CT);
+void free_content(CT);
extern CT *cts;
-void freects_done (int) NORETURN;
+void freects_done();
/*
- * static prototypes
- */
-static RETSIGTYPE pipeser (int);
+** static prototypes
+*/
+static void pipeser(int);
+static void m_popen(char *);
+static void m_pclose(void);
int
-main (int argc, char **argv)
+main(int argc, char **argv)
{
- int msgnum, *icachesw;
+ int msgnum;
char *cp, *file = NULL, *folder = NULL;
char *maildir, buf[100], **argp;
char **arguments;
struct msgs *mp = NULL;
CT ct, *ctp;
FILE *fp;
+ int ontty = 0;
- done=freects_done;
+ if (atexit(freects_done) != 0) {
+ adios(EX_OSERR, NULL, "atexit failed");
+ }
-#ifdef LOCALE
setlocale(LC_ALL, "");
-#endif
- invo_name = r1bindex (argv[0], '/');
+ invo_name = mhbasename(argv[0]);
+ if (mh_strcasecmp(invo_name, "next")==0) {
+ mode = NEXT;
+ } else if (mh_strcasecmp(invo_name, "prev")==0) {
+ mode = PREV;
+ }
/* read user profile/context */
context_read();
- arguments = getarguments (invo_name, argc, argv, 1);
+ arguments = getarguments(invo_name, argc, argv, 1);
argp = arguments;
/*
- * Parse arguments
- */
+ ** Parse arguments
+ */
while ((cp = *argp++)) {
if (*cp == '-') {
- switch (smatch (++cp, switches)) {
+ switch (smatch(++cp, switches)) {
case AMBIGSW:
- ambigsw (cp, switches);
- done (1);
+ ambigsw(cp, switches);
+ exit(EX_USAGE);
case UNKWNSW:
- adios (NULL, "-%s unknown", cp);
+ adios(EX_USAGE, NULL, "-%s unknown", cp);
case HELPSW:
- snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
- invo_name);
- print_help (buf, switches, 1);
- done (1);
+ snprintf(buf, sizeof(buf), "%s [+folder] %s[switches]", invo_name, mode==SHOW ? "[msgs] " : "");
+ print_help(buf, switches, 1);
+ exit(argc == 2 ? EX_OK : EX_USAGE);
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;
+ exit(argc == 2 ? EX_OK : EX_USAGE);
case PARTSW:
if (!(cp = *argp++) || *cp == '-')
- adios (NULL, "missing argument to %s", argp[-2]);
+ adios(EX_USAGE, NULL, "missing argument to %s",
+ argp[-2]);
if (npart >= NPARTS)
- adios (NULL, "too many parts (starting with %s), %d max",
- cp, NPARTS);
+ adios(EX_USAGE, 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]);
+ adios(EX_USAGE, NULL, "missing argument to %s",
+ argp[-2]);
if (ntype >= NTYPES)
- adios (NULL, "too many types (starting with %s), %d max",
- cp, NTYPES);
+ adios(EX_USAGE, NULL, "too many types (starting with %s), %d max", cp, NTYPES);
types[ntype++] = cp;
continue;
case FILESW:
+ if (mode != SHOW) {
+ adios(EX_USAGE, NULL, "Either call show as `%s' or use -file", invo_name);
+ }
+
if (!(cp = *argp++) || (*cp == '-' && cp[1]))
- adios (NULL, "missing argument to %s", argp[-2]);
- file = *cp == '-' ? cp : path (cp, TFILE);
+ adios(EX_USAGE, NULL, "missing argument to %s",
+ argp[-2]);
+ file = *cp == '-' ? cp : mh_xstrdup(expanddir(cp));
continue;
case FORMSW:
if (!(cp = *argp++) || *cp == '-')
- adios (NULL, "missing argument to %s", argp[-2]);
+ adios(EX_USAGE, 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]);
+ mh_free0(&formsw);
+ formsw = mh_xstrdup(etcpath(cp));
continue;
case VERBSW:
}
if (*cp == '+' || *cp == '@') {
if (folder)
- adios (NULL, "only one folder at a time!");
+ adios(EX_USAGE, NULL, "only one folder at a time!");
else
- folder = pluspath (cp);
- } else
- app_msgarg(&msgs, cp);
+ folder = mh_xstrdup(expandfol(cp));
+ } else if (mode != SHOW) {
+ adios(EX_USAGE, NULL, "Either call show as `%s' or give message arguments", invo_name);
+ } else {
+ app_msgarg(&msgs, cp);
+ }
}
/* null terminate the list of acceptable parts/types */
parts[npart] = NULL;
types[ntype] = NULL;
- set_endian ();
+ set_endian();
- if ((cp = getenv ("MM_NOASK")) && !strcmp (cp, "1")) {
+ if ((cp = getenv("MM_NOASK")) && strcmp(cp, "1")==0) {
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);
+ ** 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);
+ 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);
+ ** 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);
+ ** 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));
+ tmp = mh_xstrdup(toabsdir(invo_name));
if (file && msgs.size)
- adios (NULL, "cannot specify msg and file at same time!");
+ adios(EX_USAGE, NULL, "cannot specify msg and file at same time!");
/*
- * check if message is coming from file
- */
+ ** check if message is coming from file
+ */
if (file) {
- if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
- adios (NULL, "out of memory");
+ cts = mh_xcalloc(2, sizeof(*cts));
ctp = cts;
- if ((ct = parse_mime (file)));
+ if ((ct = parse_mime(file)))
*ctp++ = ct;
} else {
/*
- * message(s) are coming from a folder
- */
- if (!msgs.size)
- app_msgarg(&msgs, "cur");
+ ** message(s) are coming from a folder
+ */
+ if (!msgs.size) {
+ switch (mode) {
+ case NEXT:
+ app_msgarg(&msgs, seq_next);
+ break;
+ case PREV:
+ app_msgarg(&msgs, seq_prev);
+ break;
+ default:
+ app_msgarg(&msgs, seq_cur);
+ break;
+ }
+ }
if (!folder)
- folder = getfolder (1);
- maildir = m_maildir (folder);
+ folder = getcurfol();
+ maildir = toabsdir(folder);
- if (chdir (maildir) == NOTOK)
- adios (maildir, "unable to change directory to");
+ if (chdir(maildir) == NOTOK)
+ adios(EX_OSERR, 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);
+ if (!(mp = folder_read(folder)))
+ adios(EX_IOERR, NULL, "unable to read folder %s", folder);
/* check for empty folder */
if (mp->nummsg == 0)
- adios (NULL, "no messages in %s", folder);
+ adios(EX_DATAERR, NULL, "no messages in %s", folder);
/* parse all the message ranges/sequences and set SELECTED */
for (msgnum = 0; msgnum < msgs.size; msgnum++)
- if (!m_convert (mp, msgs.msgs[msgnum]))
- done (1);
+ if (!m_convert(mp, msgs.msgs[msgnum]))
+ exit(EX_USAGE);
/*
- * 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.
- */
+ ** 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);
+ set_unseen(mp, msgnum);
- seq_setprev (mp); /* set the Previous-Sequence */
- seq_setunseen (mp, 1); /* unset the Unseen-Sequence */
+ seq_setprev(mp); /* set the Previous-Sequence */
+ seq_setunseen(mp, 0); /* unset unseen seqs for shown msgs */
- if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
- adios (NULL, "out of memory");
+ cts = mh_xcalloc(mp->numsel + 1, sizeof(*cts));
ctp = cts;
/*
- * Parse all the SELECTED messages.
- */
+ ** 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)))
+ msgnam = m_name(msgnum);
+ if ((ct = parse_mime(msgnam)))
*ctp++ = ct;
}
}
}
if (!*cts)
- done (1);
+ exit(EX_SOFTWARE);
userrs = 1;
- SIGNAL (SIGQUIT, quitser);
- SIGNAL (SIGPIPE, pipeser);
+ SIGNAL(SIGQUIT, quitser);
+ SIGNAL(SIGPIPE, pipeser);
/*
- * Get the associated umask for the relevant contents.
- */
+ ** 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)
+ 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();
}
}
+ if ((ontty = isatty(fileno(stdout)))) {
+ m_popen(defaultpager);
+ }
+
/*
- * Show the message content
- */
- show_all_messages (cts);
+ ** Show the message content
+ */
+ show_all_messages(cts);
+
+ if (ontty) {
+ m_pclose();
+ }
/* Now free all the structures for the content */
for (ctp = cts; *ctp; ctp++)
- free_content (*ctp);
+ free_content(*ctp);
- free ((char *) cts);
- cts = NULL;
+ mh_free0(&cts);
/* 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 */
+ context_replace(curfolder, folder); /* update current folder */
+ seq_setcur(mp, mp->hghsel); /* update current message */
+ seq_save(mp); /* synchronize sequences */
+ context_save(); /* save the context file */
}
- done (0);
- return 1;
+ return 0;
}
-static RETSIGTYPE
-pipeser (int i)
+static void
+pipeser(int i)
{
if (i == SIGQUIT) {
- unlink ("core");
- fflush (stdout);
- fprintf (stderr, "\n");
- fflush (stderr);
+ unlink("core");
+ fflush(stdout);
+ fprintf(stderr, "\n");
+ fflush(stderr);
}
- done (1);
+ _exit(EX_IOERR);
/* NOTREACHED */
}
+
+
+static int m_pid = NOTOK;
+static int sd = NOTOK;
+
+
+static void
+m_popen(char *name)
+{
+ int pd[2];
+
+ if ((sd = dup(fileno(stdout))) == NOTOK)
+ adios(EX_OSERR, "standard output", "unable to dup()");
+
+ if (pipe(pd) == NOTOK)
+ adios(EX_OSERR, "pipe", "unable to");
+
+ switch (m_pid = fork()) {
+ case NOTOK:
+ adios(EX_OSERR, "fork", "unable to");
+
+ case OK:
+ SIGNAL(SIGINT, SIG_DFL);
+ SIGNAL(SIGQUIT, SIG_DFL);
+
+ close(pd[1]);
+ if (pd[0] != fileno(stdin)) {
+ dup2(pd[0], fileno(stdin));
+ close(pd[0]);
+ }
+ execlp(name, mhbasename(name), NULL);
+ fprintf(stderr, "unable to exec ");
+ perror(name);
+ _exit(EX_OSERR);
+
+ default:
+ close(pd[0]);
+ if (pd[1] != fileno(stdout)) {
+ dup2(pd[1], fileno(stdout));
+ close(pd[1]);
+ }
+ }
+}
+
+
+void
+m_pclose(void)
+{
+ if (m_pid == NOTOK)
+ return;
+
+ if (sd != NOTOK) {
+ fflush(stdout);
+ if (dup2(sd, fileno(stdout)) == NOTOK)
+ adios(EX_OSERR, "standard output", "unable to dup2()");
+
+ clearerr(stdout);
+ close(sd);
+ sd = NOTOK;
+ } else
+ fclose(stdout);
+
+ pidwait(m_pid, OK);
+ m_pid = NOTOK;
+}