projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 98afd458 | 1 | /*- |
| 4c008f37 KB |
2 | * Copyright (c) 1991, 1993 |
| 3 | * The Regents of the University of California. All rights reserved. | |
| 98afd458 KB |
4 | * |
| 5 | * %sccs.include.redist.c% | |
| 6 | */ | |
| 7 | ||
| 8 | #ifndef lint | |
| 4c008f37 | 9 | static char sccsid[] = "@(#)misc.c 8.1 (Berkeley) %G%"; |
| 98afd458 KB |
10 | #endif /* not lint */ |
| 11 | ||
| 12 | #include <sys/types.h> | |
| 13 | #include <unistd.h> | |
| 14 | #include <errno.h> | |
| 15 | #include <stdlib.h> | |
| 16 | #include <stdio.h> | |
| 17 | #include <string.h> | |
| 18 | #include "extern.h" | |
| 19 | ||
| 20 | void | |
| 21 | get(fd, off, p, len) | |
| 22 | int fd; | |
| 23 | off_t off; | |
| 24 | void *p; | |
| 25 | size_t len; | |
| 26 | { | |
| 27 | int rbytes; | |
| 28 | ||
| 29 | if (lseek(fd, off, SEEK_SET) < 0) | |
| 30 | err("%s: %s", special, strerror(errno)); | |
| 31 | if ((rbytes = read(fd, p, len)) < 0) | |
| 32 | err("%s: %s", special, strerror(errno)); | |
| 33 | if (rbytes != len) | |
| 34 | err("%s: short read (%d, not %d)", special, rbytes, len); | |
| 35 | } | |
| 36 | ||
| 37 | #if __STDC__ | |
| 38 | #include <stdarg.h> | |
| 39 | #else | |
| 40 | #include <varargs.h> | |
| 41 | #endif | |
| 42 | ||
| 43 | void | |
| 44 | #if __STDC__ | |
| 45 | err(const char *fmt, ...) | |
| 46 | #else | |
| 47 | err(fmt, va_alist) | |
| 48 | char *fmt; | |
| 49 | va_dcl | |
| 50 | #endif | |
| 51 | { | |
| 52 | va_list ap; | |
| 53 | #if __STDC__ | |
| 54 | va_start(ap, fmt); | |
| 55 | #else | |
| 56 | va_start(ap); | |
| 57 | #endif | |
| 58 | (void)fprintf(stderr, "dumplfs: "); | |
| 59 | (void)vfprintf(stderr, fmt, ap); | |
| 60 | va_end(ap); | |
| 61 | (void)fprintf(stderr, "\n"); | |
| 62 | exit(1); | |
| 63 | /* NOTREACHED */ | |
| 64 | } |