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Honor the MAIL environment variable, if set.

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Submitted-by: Dan Cross <cross@math.psu.edu>
This commit is contained in:
Jordan K. Hubbard 1996-10-06 01:54:22 +00:00
parent 30fcdae27e
commit 338fc8eb62
2 changed files with 20 additions and 7 deletions
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5
usr.bin/from/from.1
View File

@ -72,6 +72,11 @@ is given, the
.Ar user Ns 's
mailbox, is examined instead of the invoker's own mailbox.
(Privileges are required.)
.Sh ENVIRONMENT
.Bl -tag -width Fl
.It Ev MAIL
If set, the location of the invoker's mailbox. Otherwise, the default
in /var/mail is used.
.Sh FILES
.Bl -tag -width /var/mail/* -compact
.It Pa /var/mail/*

22
usr.bin/from/from.c
View File

@ -42,9 +42,11 @@ static char sccsid[] = "@(#)from.c 8.1 (Berkeley) 6/6/93";
#endif /* not lint */
#include <sys/types.h>
#include <ctype.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <paths.h>
@ -83,16 +85,22 @@ main(argc, argv)
argv += optind;
if (!file) {
if (!(file = *argv)) {
if (!(pwd = getpwuid(getuid()))) {
fprintf(stderr,
if (*argv) {
(void)sprintf(buf, "%s/%s", _PATH_MAILDIR, *argv);
file = buf;
} else {
if (!(file = getenv("MAIL"))) {
if (!(pwd = getpwuid(getuid()))) {
(void)fprintf(stderr,
"from: no password file entry for you.\n");
exit(1);
exit(1);
}
file = pwd->pw_name;
(void)sprintf(buf,
"%s/%s", _PATH_MAILDIR, file);
file = buf;
}
file = pwd->pw_name;
}
(void)sprintf(buf, "%s/%s", _PATH_MAILDIR, file);
file = buf;
}
/* read from stdin */