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Diffstat (limited to 'usr/dash/mail.c')
| -rw-r--r-- | usr/dash/mail.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/usr/dash/mail.c b/usr/dash/mail.c new file mode 100644 index 0000000..02e07f7 --- /dev/null +++ b/usr/dash/mail.c @@ -0,0 +1,112 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. 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. + */ + +/* + * Routines to check for mail. (Perhaps make part of main.c?) + */ +#include <sys/types.h> +#include <sys/stat.h> +#include <stdlib.h> + +#include "shell.h" +#include "nodes.h" +#include "exec.h" /* defines padvance() */ +#include "var.h" +#include "output.h" +#include "memalloc.h" +#include "error.h" +#include "mail.h" +#include "mystring.h" + + +#define MAXMBOXES 10 + +/* times of mailboxes */ +static time_t mailtime[MAXMBOXES]; +/* Set if MAIL or MAILPATH is changed. */ +static int changed; + + + +/* + * Print appropriate message(s) if mail has arrived. If changed is set, + * then the value of MAIL has changed, so we just update the values. + */ + +void +chkmail(void) +{ + const char *mpath; + char *p; + char *q; + time_t *mtp; + struct stackmark smark; + struct stat64 statb; + + setstackmark(&smark); + mpath = mpathset() ? mpathval() : mailval(); + for (mtp = mailtime; mtp < mailtime + MAXMBOXES; mtp++) { + p = padvance(&mpath, nullstr); + if (p == NULL) + break; + if (*p == '\0') + continue; + for (q = p ; *q ; q++); +#ifdef DEBUG + if (q[-1] != '/') + abort(); +#endif + q[-1] = '\0'; /* delete trailing '/' */ + if (stat64(p, &statb) < 0) { + *mtp = 0; + continue; + } + if (!changed && statb.st_mtime != *mtp) { + outfmt( + &errout, snlfmt, + pathopt ? pathopt : "you have mail" + ); + } + *mtp = statb.st_mtime; + } + changed = 0; + popstackmark(&smark); +} + + +void +changemail(const char *val) +{ + changed++; +} |