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.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#)edit.c 8.1 (Berkeley) 6/6/93
30 * $FreeBSD: src/usr.bin/mail/edit.c,v 1.2.6.4 2003/01/06 05:46:03 mikeh Exp $
38 * Mail -- a mail program
40 * Perform message editing functions.
44 * Edit a message list.
49 return (edit1(msgvec
, 'e'));
53 * Invoke the visual editor on a message list.
58 return (edit1(msgvec
, 'v'));
62 * Edit a message by writing the message into a funnily-named file
63 * (which should not exist) and forking an editor on it.
64 * We get the editor from the stuff above.
67 edit1(int *msgvec
, int type
)
75 * Deal with each message to be edited . . .
77 for (i
= 0; i
< msgCount
&& msgvec
[i
]; i
++) {
84 printf("Edit message %d [ynq]? ", msgvec
[i
]);
85 if (fgets(buf
, sizeof(buf
), stdin
) == 0)
87 for (p
= buf
; *p
== ' ' || *p
== '\t'; p
++)
94 dot
= mp
= &message
[msgvec
[i
] - 1];
96 sigint
= signal(SIGINT
, SIG_IGN
);
97 fp
= run_editor(setinput(mp
), mp
->m_size
, type
, readonly
);
99 fseeko(otf
, (off_t
)0, SEEK_END
);
101 mp
->m_block
= blockof(size
);
102 mp
->m_offset
= boffsetof(size
);
103 mp
->m_size
= (long)fsize(fp
);
105 mp
->m_flag
|= MODIFY
;
107 while ((c
= getc(fp
)) != EOF
) {
110 if (putc(c
, otf
) == EOF
)
117 signal(SIGINT
, sigint
);
123 * Run an editor on the file at "fpp" of "size" bytes,
124 * and return a new file pointer.
125 * Signals must be handled by the caller.
126 * "Type" is 'e' for _PATH_EX, 'v' for _PATH_VI.
129 run_editor(FILE *fp
, off_t size
, int type
, int readonly
)
134 char *edit
, tempname
[PATHSIZE
];
137 snprintf(tempname
, sizeof(tempname
), "%s/mail.ReXXXXXXXXXX", tmpdir
);
138 if ((t
= mkstemp(tempname
)) == -1 ||
139 (nf
= Fdopen(t
, "w")) == NULL
) {
140 warn("%s", tempname
);
143 if (readonly
&& fchmod(t
, 0400) == -1) {
144 warn("%s", tempname
);
149 while (--size
>= 0 && (t
= getc(fp
)) != EOF
)
152 while ((t
= getc(fp
)) != EOF
)
155 if (fstat(fileno(nf
), &statb
) < 0)
158 modtime
= statb
.st_mtime
;
161 warnx("%s", tempname
);
166 if (Fclose(nf
) < 0) {
167 warn("%s", tempname
);
173 if ((edit
= value(type
== 'e' ? "EDITOR" : "VISUAL")) == NULL
)
174 edit
= type
== 'e' ? _PATH_EX
: _PATH_VI
;
175 if (run_command(edit
, 0, -1, -1, tempname
, NULL
, NULL
) < 0) {
180 * If in read only mode or file unchanged, just remove the editor
181 * temporary and return.
187 if (stat(tempname
, &statb
) < 0) {
188 warn("%s", tempname
);
191 if (modtime
== statb
.st_mtime
) {
196 * Now switch to new file.
198 if ((nf
= Fopen(tempname
, "a+")) == NULL
) {
199 warn("%s", tempname
);