1 /*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Kenneth Almquist. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)mail.c 8.2 (Berkeley) 5/4/95"; 36 #endif 37 #endif /* not lint */ 38 #include <sys/cdefs.h> 39 __FBSDID("$FreeBSD$"); 40 41 /* 42 * Routines to check for mail. (Perhaps make part of main.c?) 43 */ 44 45 #include "shell.h" 46 #include "exec.h" /* defines padvance() */ 47 #include "mail.h" 48 #include "var.h" 49 #include "output.h" 50 #include "memalloc.h" 51 #include "error.h" 52 #include <sys/types.h> 53 #include <sys/stat.h> 54 #include <stdlib.h> 55 56 57 #define MAXMBOXES 10 58 59 60 static int nmboxes; /* number of mailboxes */ 61 static time_t mailtime[MAXMBOXES]; /* times of mailboxes */ 62 63 64 65 /* 66 * Print appropriate message(s) if mail has arrived. If the argument is 67 * nozero, then the value of MAIL has changed, so we just update the 68 * values. 69 */ 70 71 void 72 chkmail(int silent) 73 { 74 int i; 75 const char *mpath; 76 char *p; 77 char *q; 78 struct stackmark smark; 79 struct stat statb; 80 81 if (silent) 82 nmboxes = 10; 83 if (nmboxes == 0) 84 return; 85 setstackmark(&smark); 86 mpath = mpathset()? mpathval() : mailval(); 87 for (i = 0 ; i < nmboxes ; i++) { 88 p = padvance(&mpath, ""); 89 if (p == NULL) 90 break; 91 if (*p == '\0') 92 continue; 93 for (q = p ; *q ; q++); 94 if (q[-1] != '/') 95 abort(); 96 q[-1] = '\0'; /* delete trailing '/' */ 97 #ifdef notdef /* this is what the System V shell claims to do (it lies) */ 98 if (stat(p, &statb) < 0) 99 statb.st_mtime = 0; 100 if (statb.st_mtime > mailtime[i] && ! silent) { 101 out2str(pathopt? pathopt : "you have mail"); 102 out2c('\n'); 103 } 104 mailtime[i] = statb.st_mtime; 105 #else /* this is what it should do */ 106 if (stat(p, &statb) < 0) 107 statb.st_size = 0; 108 if (statb.st_size > mailtime[i] && ! silent) { 109 out2str(pathopt? pathopt : "you have mail"); 110 out2c('\n'); 111 } 112 mailtime[i] = statb.st_size; 113 #endif 114 } 115 nmboxes = i; 116 popstackmark(&smark); 117 } 118