* Re: [PATCH] MAINTAINERS file addition: Al Viro
2002-05-27 4:11 ` Alexander Viro
@ 2002-05-27 4:25 ` Larry McVoy
0 siblings, 0 replies; 3+ messages in thread
From: Larry McVoy @ 2002-05-27 4:25 UTC (permalink / raw)
To: Alexander Viro; +Cc: Rusty Russell, torvalds, linux-kernel, trivial
On Mon, May 27, 2002 at 12:11:09AM -0400, Alexander Viro wrote:
> Oh, for crying out loud... Even mail(1) supports aliases - say
> echo alias bastard viro@math.psu.edu >> ~/.mailrc and enjoy. If your
> MUA doesn't have aliases/address book/etc. - switch to something sane.
I got sick of everything not having this about 15 years ago. If you
compile this as cc -o Alias alias.c and then do stuff like
alias mutt='Alias mutt'
then it will do the lookup and tell you how it is rewriting the addresses
as you pop into the tool.
static char *id = "@(#)alias.c 1.2 - main, strsav; mcvoy@rsch.wisc.edu";
/* Alias - provide front end for whatever that loads aliases.
* Look in ~/.fingerc for aliases. You could link this to .mailrc.
*
* An alias is the regular expression:
*
* ^alias[ <tab>]+name[ <tab>]+full_name
*
* and "finger name" gets translated to finger fullname. Exception: any
* fullname that contains a "!" is ignored (can't do uucp, only internet).
*
* Options: -I ignores the dotfiles; a good way to finger a local john instead
* of the aliased john.
*
* Revisions:
* 1/May/87: Add support for general machine aliasing as well as people
* aliasing. A machine alias for seismo is
*
* alias seismo @siesmo.css.gov
*
* and finger foo@seismo will rewrite to foo@seismo.css.gov
*
* 5/May/87: Make this a general interface to any program. Usage is:
* Alias program args
*
* and typical usage is
*
* alias mail 'Alias Mail \!*'
*/
#include <stdio.h>
#include <ctype.h>
char *malloc();
char *strcpy();
char *strsav();
char *index();
char *PROG;
int quiet;
main(ac, av, ev)
char **av;
char **ev;
{
char fingerc[255], buf[500], machine[100];
register i;
FILE *f = (FILE *) - 1;
sprintf(fingerc, "%s/.fingerc", getenv("HOME"));
/* quiet or noisy? */
if (!strcmp(av[1], "-Q")) {
quiet++;
for (i = 1; i < ac; i++)
av[i] = av[i + 1];
--ac;
}
/* grab new program name and shift argv down */
PROG = av[1];
av[0] = PROG;
for (i = 1; i < ac; i++)
av[i] = av[i + 1];
--ac;
if (!(f = fopen(fingerc, "r"))) {
execvp(PROG, av);
perror(PROG);
}
/* stupid alg: scan the file for each av, but there's usually only one. */
for (i = 1; i < ac; i++) {
register len = strlen(av[i]);
register mlen = 0;
/* optimization: ignore options */
if (*av[i] == '-')
continue;
rewind(f);
/* grab machine name, it might be an alias */
if (index(av[i], '@')) {
strcpy(machine, index(av[i], '@') + 1);
mlen = strlen(machine);
} else
machine[0] = 0;
while (fgets(buf, sizeof(buf), f)) {
register char *s;
register char *t;
/* chop newline */
buf[strlen(buf) - 1] = 0;
/* only aliases, please (sorry alice) */
if (strncmp(buf, "alias", 5))
continue;
for (s = buf + 5; *s && isspace(*s); s++);
/* match user alias? */
if (!strncmp(s, av[i], len) && isspace(*(s + len))) {
s += len;
for (; *s && isspace(*s); s++);
/* is it really a user or is it a machine? */
if (*s == '@')
s++;
for (t = s; *t && !isspace(*t); t++);
if (!index(s, '!')) {
if (!quiet)
fprintf(stderr, "%s --> %s\n", av[i], s);
av[i] = strsav(s);
break; /* while, get next i */
}
}
/* match system alias? */
if (mlen && !strncmp(machine, s, mlen)) {
char buf2[200];
register char *save;
/* get to @full.name.part */
s += mlen;
for (; *s && isspace(*s); s++);
if (*s++ != '@')
continue;
for (t = s; *t && !isspace(*t); t++);
*t = NULL;
*(index(av[i], '@') + 1) = NULL;
sprintf(buf2, "%s%s", av[i], s);
if (!quiet)
fprintf(stderr, "%s%s --> %s\n", av[i], machine, buf2);
av[i] = strsav(buf2);
break; /* while, get next i */
}
}
}
execvp(PROG, av);
perror(PROG);
}
char *
strsav(s)
register char *s;
{
register char *t = malloc(strlen(s) + 1);
return strcpy(t, s);
}
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