2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1980, 1993
5 * The Regents of the University of California. All rights reserved.
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8 * modification, are permitted provided that the following conditions
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11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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34 static char sccsid[] = "@(#)edit.c 8.1 (Berkeley) 6/6/93";
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
45 * Mail -- a mail program
47 * Perform message editing functions.
51 * Edit a message list.
57 return (edit1(msgvec, 'e'));
61 * Invoke the visual editor on a message list.
67 return (edit1(msgvec, 'v'));
71 * Edit a message by writing the message into a funnily-named file
72 * (which should not exist) and forking an editor on it.
73 * We get the editor from the stuff above.
76 edit1(int *msgvec, int type)
84 * Deal with each message to be edited . . .
86 for (i = 0; i < msgCount && msgvec[i]; i++) {
93 printf("Edit message %d [ynq]? ", msgvec[i]);
94 if (fgets(buf, sizeof(buf), stdin) == NULL)
96 for (p = buf; *p == ' ' || *p == '\t'; p++)
103 dot = mp = &message[msgvec[i] - 1];
105 sigint = signal(SIGINT, SIG_IGN);
106 fp = run_editor(setinput(mp), mp->m_size, type, readonly);
108 (void)fseeko(otf, (off_t)0, SEEK_END);
110 mp->m_block = blockof(size);
111 mp->m_offset = boffsetof(size);
112 mp->m_size = (long)fsize(fp);
114 mp->m_flag |= MODIFY;
116 while ((c = getc(fp)) != EOF) {
119 if (putc(c, otf) == EOF)
126 (void)signal(SIGINT, sigint);
132 * Run an editor on the file at "fpp" of "size" bytes,
133 * and return a new file pointer.
134 * Signals must be handled by the caller.
135 * "Type" is 'e' for _PATH_EX, 'v' for _PATH_VI.
138 run_editor(FILE *fp, off_t size, int type, int readonly)
143 char *edit, tempname[PATHSIZE];
146 (void)snprintf(tempname, sizeof(tempname),
147 "%s/mail.ReXXXXXXXXXX", tmpdir);
148 if ((t = mkstemp(tempname)) == -1 ||
149 (nf = Fdopen(t, "w")) == NULL) {
150 warn("%s", tempname);
153 if (readonly && fchmod(t, 0400) == -1) {
154 warn("%s", tempname);
159 while (--size >= 0 && (t = getc(fp)) != EOF)
162 while ((t = getc(fp)) != EOF)
165 if (fstat(fileno(nf), &statb) < 0)
168 modtime = statb.st_mtime;
171 warnx("%s", tempname);
176 if (Fclose(nf) < 0) {
177 warn("%s", tempname);
183 if ((edit = value(type == 'e' ? "EDITOR" : "VISUAL")) == NULL)
184 edit = type == 'e' ? _PATH_EX : _PATH_VI;
185 if (run_command(edit, 0, -1, -1, tempname, NULL) < 0) {
190 * If in read only mode or file unchanged, just remove the editor
191 * temporary and return.
197 if (stat(tempname, &statb) < 0) {
198 warn("%s", tempname);
201 if (modtime == statb.st_mtime) {
206 * Now switch to new file.
208 if ((nf = Fopen(tempname, "a+")) == NULL) {
209 warn("%s", tempname);