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Diffstat (limited to 'bin/sh/mail.c')
-rw-r--r-- | bin/sh/mail.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/bin/sh/mail.c b/bin/sh/mail.c new file mode 100644 index 0000000..484b50f --- /dev/null +++ b/bin/sh/mail.c @@ -0,0 +1,144 @@ +/* $NetBSD: mail.c,v 1.18 2017/06/04 20:28:13 kre Exp $ */ + +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +#ifndef lint +#if 0 +static char sccsid[] = "@(#)mail.c 8.2 (Berkeley) 5/4/95"; +#else +__RCSID("$NetBSD: mail.c,v 1.18 2017/06/04 20:28:13 kre Exp $"); +#endif +#endif /* not lint */ + +/* + * Routines to check for mail. (Perhaps make part of main.c?) + */ +#include <sys/types.h> +#include <sys/stat.h> +#include <stdlib.h> +#include <string.h> + +#include "shell.h" +#include "exec.h" /* defines padvance() */ +#include "var.h" +#include "output.h" +#include "memalloc.h" +#include "error.h" +#include "mail.h" + + +#define MAXMBOXES 10 + + +STATIC int nmboxes; /* number of mailboxes */ +STATIC off_t mailsize[MAXMBOXES]; /* sizes of mailboxes */ + + + +/* + * Print appropriate message(s) if mail has arrived. If the argument is + * nozero, then the value of MAIL has changed, so we just update the + * values. + */ + +void +chkmail(int silent) +{ + int i; + const char *mpath; + char *p; + char *q; + struct stackmark smark; + struct stat statb; + + if (silent) + nmboxes = 10; + if (nmboxes == 0) + return; + setstackmark(&smark); + mpath = mpathset() ? mpathval() : mailval(); + for (i = 0 ; i < nmboxes ; i++) { + p = padvance(&mpath, nullstr, 1); + if (p == NULL) + break; + stunalloc(p); + if (*p == '\0') + continue; + for (q = p ; *q ; q++) + ; + if (q[-1] != '/') + abort(); + q[-1] = '\0'; /* delete trailing '/' */ +#ifdef notdef /* this is what the System V shell claims to do (it lies) */ + if (stat(p, &statb) < 0) + statb.st_mtime = 0; + if (statb.st_mtime > mailtime[i] && ! silent) { + out2str(pathopt ? pathopt : "you have mail"); + out2c('\n'); + } + mailtime[i] = statb.st_mtime; +#else /* this is what it should do */ + if (stat(p, &statb) < 0) + statb.st_size = 0; + if (statb.st_size > mailsize[i] && ! silent) { + const char *pp; + + if ((pp = pathopt) != NULL) { + int len = 0; + + while (*pp && *pp != ':') + len++, pp++; + if (len == 0) { + CHECKSTRSPACE(16, p); + strcat(p, ": file changed"); + } else { + while (stackblocksize() <= len) + growstackblock(); + p = stackblock(); + memcpy(p, pathopt, len); + p[len] = '\0'; + } + pp = p; + } else + pp = "you have mail"; + + out2str(pp); + out2c('\n'); + } + mailsize[i] = statb.st_size; +#endif + } + nmboxes = i; + popstackmark(&smark); +} |