mirror of https://github.com/leahneukirchen/mblaze
add mexport
Christian Neukirchen
8 years ago
parent
7c9a5c9c76
commit
d71a1fbe44
@ -0,0 +1,66 @@
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.Dd August 19, 2016
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.Dt MEXPORT 1
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.Os
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.Sh NAME
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.Nm mexport
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.Nd export messages as mbox file
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.Sh SYNOPSIS
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.Nm
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.Op Fl S
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.Ar msgs\ ...
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.Sh DESCRIPTION
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.Nm
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exports the given messages as a MBOXRD file to standard output.
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See
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.Xr mmsg 7
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for the message argument syntax.
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.Pp
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If no
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.Ar msgs
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are passed,
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.Nm
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reads file names from standard input,
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or uses the mails in the current sequence when used interactively.
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.Pp
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.Nm
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uses the
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.Sq Li "Return-Path:"
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(or
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.Sq Li "X-Envelope-To:" )
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and the
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.Sq Li "Date:"
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from the message for the
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.Sq Li "From "
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line.
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.Pp
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The options are as follows:
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.Bl -tag -width Ds
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.It Fl S
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Add
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.Sq Li "Status:"
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and
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.Sq Li "X-Status:"
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headers according to the Maildir flags.
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.El
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.Sh EXIT STATUS
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.Ex -std
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.Sh SEE ALSO
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.Xr mdeliver 1 ,
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.Xr maildir 5 ,
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.Xr mbox 5
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.Pp
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.Lk http://www.digitalpreservation.gov/formats/fdd/fdd000385.shtml "MBOXRD Email Format"
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.Pp
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.Lk https://cr.yp.to/proto/maildir.html "Using maildir format"
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.Sh AUTHORS
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.An Christian Neukirchen Aq Mt chneukirchen@gmail.com
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.Sh LICENSE
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.Nm
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is in the public domain.
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.Pp
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To the extent possible under law,
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the creator of this work
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has waived all copyright and related or
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neighboring rights to this work.
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.Pp
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.Lk http://creativecommons.org/publicdomain/zero/1.0/
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@ -0,0 +1,139 @@
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <ctype.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "blaze822.h"
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static int Sflag;
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static int status;
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void
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export(char *file)
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{
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struct message *msg;
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while (*file == ' ' || *file == '\t')
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file++;
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msg = blaze822(file);
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if (!msg)
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return;
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char from[1024] = "nobody";
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char *v;
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if ((v = blaze822_hdr(msg, "return-path")) ||
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(v = blaze822_hdr(msg, "x-envelope-from"))) {
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char *s = strchr(v, '<');
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char *e = strchr(s, '>');
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if (s && e) {
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e++;
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memcpy(from, s, e-s);
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from[e-s] = 0;
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}
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}
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time_t date = -1;
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if ((v = blaze822_hdr(msg, "date"))) {
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date = blaze822_date(v);
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}
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char *line = 0;
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size_t linelen = 0;
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FILE *infile = fopen(file, "r");
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if (!infile) {
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status = 1;
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return;
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}
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printf("From %s %s", from, ctime(&date));
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int in_header = 1;
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int final_nl = 0;
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while (1) {
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errno = 0;
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ssize_t rd = getline(&line, &linelen, infile);
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if (rd == -1) {
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if (errno == 0)
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break;
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// XXX print error?
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status = 1;
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return;
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}
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if (in_header && line[0] == '\n' && !line[1]) {
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if (Sflag) {
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char *flags = strstr(file, ":2,");
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if (!flags)
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flags = "";
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fputs("Status: ", stdout);
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if (strchr(flags, 'S'))
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putchar('R');
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char *ee = strrchr(file, '/');
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if (!ee ||
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!(ee >= file + 3 && ee[-3] == 'n' && ee[-2] == 'e' && ee[-1] == 'w'))
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putchar('O');
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putchar('\n');
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fputs("X-Status: ", stdout);
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if (strchr(flags, 'R')) putchar('A');
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if (strchr(flags, 'T')) putchar('D');
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if (strchr(flags, 'F')) putchar('F');
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putchar('\n');
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}
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in_header = 0;
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}
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// MBOXRD: add first > to >>..>>From
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char *s = line;
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while (*s == '>')
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s++;
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if (strncmp("From ", s, 5) == 0)
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putchar('>');
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fputs(line, stdout);
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final_nl = (line[rd-1] == '\n');
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}
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// ensure trailing newline
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if (!final_nl)
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putchar('\n');
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fclose(infile);
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blaze822_free(msg);
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}
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int
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main(int argc, char *argv[])
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{
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int c;
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while ((c = getopt(argc, argv, "S")) != -1)
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switch(c) {
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case 'S': Sflag = 1; break;
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default:
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fprintf(stderr, "Usage: mexport [-S] [msgs...]\n");
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exit(2);
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}
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status = 0;
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if (argc == optind && isatty(0))
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blaze822_loop1(":", export);
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else
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blaze822_loop(argc-optind, argv+optind, export);
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return status;
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}
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