2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
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15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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32 static char sccsid[] = "@(#)edit.c 8.1 (Berkeley) 6/6/93";
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
43 * Mail -- a mail program
45 * Perform message editing functions.
49 * Edit a message list.
55 return (edit1(msgvec, 'e'));
59 * Invoke the visual editor on a message list.
65 return (edit1(msgvec, 'v'));
69 * Edit a message by writing the message into a funnily-named file
70 * (which should not exist) and forking an editor on it.
71 * We get the editor from the stuff above.
74 edit1(int *msgvec, int type)
82 * Deal with each message to be edited . . .
84 for (i = 0; i < msgCount && msgvec[i]; i++) {
91 printf("Edit message %d [ynq]? ", msgvec[i]);
92 if (fgets(buf, sizeof(buf), stdin) == NULL)
94 for (p = buf; *p == ' ' || *p == '\t'; p++)
101 dot = mp = &message[msgvec[i] - 1];
103 sigint = signal(SIGINT, SIG_IGN);
104 fp = run_editor(setinput(mp), mp->m_size, type, readonly);
106 (void)fseeko(otf, (off_t)0, SEEK_END);
108 mp->m_block = blockof(size);
109 mp->m_offset = boffsetof(size);
110 mp->m_size = (long)fsize(fp);
112 mp->m_flag |= MODIFY;
114 while ((c = getc(fp)) != EOF) {
117 if (putc(c, otf) == EOF)
124 (void)signal(SIGINT, sigint);
130 * Run an editor on the file at "fpp" of "size" bytes,
131 * and return a new file pointer.
132 * Signals must be handled by the caller.
133 * "Type" is 'e' for _PATH_EX, 'v' for _PATH_VI.
136 run_editor(FILE *fp, off_t size, int type, int readonly)
141 char *edit, tempname[PATHSIZE];
144 (void)snprintf(tempname, sizeof(tempname),
145 "%s/mail.ReXXXXXXXXXX", tmpdir);
146 if ((t = mkstemp(tempname)) == -1 ||
147 (nf = Fdopen(t, "w")) == NULL) {
148 warn("%s", tempname);
151 if (readonly && fchmod(t, 0400) == -1) {
152 warn("%s", tempname);
157 while (--size >= 0 && (t = getc(fp)) != EOF)
160 while ((t = getc(fp)) != EOF)
163 if (fstat(fileno(nf), &statb) < 0)
166 modtime = statb.st_mtime;
169 warnx("%s", tempname);
174 if (Fclose(nf) < 0) {
175 warn("%s", tempname);
181 if ((edit = value(type == 'e' ? "EDITOR" : "VISUAL")) == NULL)
182 edit = type == 'e' ? _PATH_EX : _PATH_VI;
183 if (run_command(edit, 0, -1, -1, tempname, NULL, NULL) < 0) {
188 * If in read only mode or file unchanged, just remove the editor
189 * temporary and return.
195 if (stat(tempname, &statb) < 0) {
196 warn("%s", tempname);
199 if (modtime == statb.st_mtime) {
204 * Now switch to new file.
206 if ((nf = Fopen(tempname, "a+")) == NULL) {
207 warn("%s", tempname);