projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 24ea962f KB |
1 | /*- |
| 2 | * Copyright (c) 1991 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * This code is derived from software contributed to Berkeley by | |
| 6 | * Kenneth Almquist. | |
| 7 | * | |
| 8 | * %sccs.include.redist.c% | |
| 9 | */ | |
| 10 | ||
| 11 | #ifndef lint | |
| 12 | static char sccsid[] = "@(#)mail.c 5.1 (Berkeley) %G%"; | |
| 13 | #endif /* not lint */ | |
| 14 | ||
| 15 | /* | |
| 16 | * Routines to check for mail. (Perhaps make part of main.c?) | |
| 17 | */ | |
| 18 | ||
| 19 | #include "shell.h" | |
| 20 | #include "exec.h" /* defines padvance() */ | |
| 21 | #include "var.h" | |
| 22 | #include "output.h" | |
| 23 | #include "memalloc.h" | |
| 24 | #include "error.h" | |
| 25 | #include <sys/types.h> | |
| 26 | #include <sys/stat.h> | |
| 27 | ||
| 28 | ||
| 29 | #define MAXMBOXES 10 | |
| 30 | ||
| 31 | ||
| 32 | STATIC int nmboxes; /* number of mailboxes */ | |
| 33 | STATIC time_t mailtime[MAXMBOXES]; /* times of mailboxes */ | |
| 34 | ||
| 35 | ||
| 36 | ||
| 37 | /* | |
| 38 | * Print appropriate message(s) if mail has arrived. If the argument is | |
| 39 | * nozero, then the value of MAIL has changed, so we just update the | |
| 40 | * values. | |
| 41 | */ | |
| 42 | ||
| 43 | void | |
| 44 | chkmail(silent) { | |
| 45 | register int i; | |
| 46 | char *mpath; | |
| 47 | char *p; | |
| 48 | register char *q; | |
| 49 | struct stackmark smark; | |
| 50 | struct stat statb; | |
| 51 | ||
| 52 | if (silent) | |
| 53 | nmboxes = 10; | |
| 54 | if (nmboxes == 0) | |
| 55 | return; | |
| 56 | setstackmark(&smark); | |
| 57 | mpath = mpathset()? mpathval() : mailval(); | |
| 58 | for (i = 0 ; i < nmboxes ; i++) { | |
| 59 | p = padvance(&mpath, nullstr); | |
| 60 | if (p == NULL) | |
| 61 | break; | |
| 62 | if (*p == '\0') | |
| 63 | continue; | |
| 64 | for (q = p ; *q ; q++); | |
| 65 | if (q[-1] != '/') | |
| 66 | abort(); | |
| 67 | q[-1] = '\0'; /* delete trailing '/' */ | |
| 68 | #ifdef notdef /* this is what the System V shell claims to do (it lies) */ | |
| 69 | if (stat(p, &statb) < 0) | |
| 70 | statb.st_mtime = 0; | |
| 71 | if (statb.st_mtime > mailtime[i] && ! silent) { | |
| 72 | out2str(pathopt? pathopt : "you have mail"); | |
| 73 | out2c('\n'); | |
| 74 | } | |
| 75 | mailtime[i] = statb.st_mtime; | |
| 76 | #else /* this is what it should do */ | |
| 77 | if (stat(p, &statb) < 0) | |
| 78 | statb.st_size = 0; | |
| 79 | if (statb.st_size > mailtime[i] && ! silent) { | |
| 80 | out2str(pathopt? pathopt : "you have mail"); | |
| 81 | out2c('\n'); | |
| 82 | } | |
| 83 | mailtime[i] = statb.st_size; | |
| 84 | #endif | |
| 85 | } | |
| 86 | nmboxes = i; | |
| 87 | popstackmark(&smark); | |
| 88 | } |