2 * Copyright (c) 1980, 1993
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33 * @(#)edit.c 8.1 (Berkeley) 6/6/93
34 * $FreeBSD: src/usr.bin/mail/edit.c,v 1.2.6.4 2003/01/06 05:46:03 mikeh Exp $
35 * $DragonFly: src/usr.bin/mail/edit.c,v 1.4 2004/09/08 03:01:11 joerg Exp $
43 * Mail -- a mail program
45 * Perform message editing functions.
49 * Edit a message list.
54 return (edit1(msgvec, 'e'));
58 * Invoke the visual editor on a message list.
63 return (edit1(msgvec, 'v'));
67 * Edit a message by writing the message into a funnily-named file
68 * (which should not exist) and forking an editor on it.
69 * We get the editor from the stuff above.
72 edit1(int *msgvec, int type)
80 * Deal with each message to be edited . . .
82 for (i = 0; msgvec[i] && i < msgCount; i++) {
89 printf("Edit message %d [ynq]? ", msgvec[i]);
90 if (fgets(buf, sizeof(buf), stdin) == 0)
92 for (p = buf; *p == ' ' || *p == '\t'; p++)
99 dot = mp = &message[msgvec[i] - 1];
101 sigint = signal(SIGINT, SIG_IGN);
102 fp = run_editor(setinput(mp), mp->m_size, type, readonly);
104 fseeko(otf, (off_t)0, SEEK_END);
106 mp->m_block = blockof(size);
107 mp->m_offset = boffsetof(size);
108 mp->m_size = (long)fsize(fp);
110 mp->m_flag |= MODIFY;
112 while ((c = getc(fp)) != EOF) {
115 if (putc(c, otf) == EOF)
122 signal(SIGINT, sigint);
128 * Run an editor on the file at "fpp" of "size" bytes,
129 * and return a new file pointer.
130 * Signals must be handled by the caller.
131 * "Type" is 'e' for _PATH_EX, 'v' for _PATH_VI.
134 run_editor(FILE *fp, off_t size, int type, int readonly)
139 char *edit, tempname[PATHSIZE];
142 snprintf(tempname, sizeof(tempname), "%s/mail.ReXXXXXXXXXX", tmpdir);
143 if ((t = mkstemp(tempname)) == -1 ||
144 (nf = Fdopen(t, "w")) == NULL) {
145 warn("%s", tempname);
148 if (readonly && fchmod(t, 0400) == -1) {
149 warn("%s", tempname);
154 while (--size >= 0 && (t = getc(fp)) != EOF)
157 while ((t = getc(fp)) != EOF)
160 if (fstat(fileno(nf), &statb) < 0)
163 modtime = statb.st_mtime;
166 warnx("%s", tempname);
171 if (Fclose(nf) < 0) {
172 warn("%s", tempname);
178 if ((edit = value(type == 'e' ? "EDITOR" : "VISUAL")) == NULL)
179 edit = type == 'e' ? _PATH_EX : _PATH_VI;
180 if (run_command(edit, 0, -1, -1, tempname, NULL, NULL) < 0) {
185 * If in read only mode or file unchanged, just remove the editor
186 * temporary and return.
192 if (stat(tempname, &statb) < 0) {
193 warn("%s", tempname);
196 if (modtime == statb.st_mtime) {
201 * Now switch to new file.
203 if ((nf = Fopen(tempname, "a+")) == NULL) {
204 warn("%s", tempname);