Commit | Line | Data |
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ed0d8cc8 | 1 | /* |
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2 | * Copyright (c) 1986 MICOM-Interlan, Inc., Boxborough Mass. |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
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5 | * |
6 | */ | |
7 | #ifndef lint | |
8 | char copyright[] = | |
4f51e749 | 9 | "@(#) Copyright (c) 1986 MICOM-Interlan, Inc., Boxborough Mass.\n\ |
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10 | All rights reserved.\n"; |
11 | #endif not lint | |
12 | ||
13 | #ifndef lint | |
4f51e749 | 14 | static char sccsid[] = "@(#)npdump.c 6.2 (Berkeley) %G%"; |
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15 | #endif not lint |
16 | ||
17 | #include <stdio.h> | |
18 | #include <sys/file.h> | |
19 | #include "npcmd.h" | |
20 | #include <sys/ioctl.h> | |
21 | ||
22 | extern int errno; | |
23 | ||
24 | #define IMAGESIZE (1024 * 256) | |
25 | ||
26 | main(argc,argv) | |
27 | int argc; | |
28 | char **argv; | |
29 | { | |
30 | ||
31 | int totalread; /* Total byte count of device reads */ | |
32 | int ed; /* Device's file descriptor */ | |
33 | int fd; /* Dumpfile device descriptor */ | |
34 | int nread; /* Value returned from read() call */ | |
35 | int nwritten; /* Value returned from write() call */ | |
36 | char *fname; | |
37 | char ibuf[1024]; | |
38 | char *devname = "/dev/np00"; | |
39 | ||
40 | ||
41 | switch (argc) { | |
42 | case 3: | |
43 | /* Pathname for device to be dumped */ | |
44 | devname = argv[2]; | |
45 | case 2: | |
46 | /* Name of the dump file */ | |
47 | fname = argv[1]; | |
48 | break; | |
49 | default: | |
50 | printf("usage: npdump dumpfile [device]\n"); | |
51 | exit(1); | |
52 | } | |
53 | ||
54 | /* Open the device to be dumped */ | |
55 | ||
56 | if ((ed = open(devname, O_RDWR)) == -1) { | |
57 | char fullpath[50]; | |
58 | (void) sprintf(fullpath, "/dev/%s", devname); | |
59 | if ((ed = open(devname,O_RDWR)) == -1) { | |
60 | fprintf(stderr, | |
61 | "%s unable to open device %s errno = %d\n", | |
62 | argv[0], devname, errno); | |
63 | exit(2); | |
64 | } | |
65 | } | |
66 | ||
67 | /* Open/create the dump file */ | |
68 | ||
69 | if ((fd = open(fname, O_RDWR | O_CREAT)) == -1) { | |
70 | fprintf(stderr,"%s: unable to open file %s errno = %d\n", | |
71 | argv[0], fname, errno); | |
72 | exit(2); | |
73 | } | |
74 | ||
75 | ||
76 | /* Read from the device and write to the dump file */ | |
77 | ||
78 | totalread = 0; | |
79 | ||
80 | while (totalread < IMAGESIZE) { | |
81 | ||
82 | if ((nread = read(ed,ibuf,1024)) > 0) { | |
83 | ||
84 | totalread += nread; | |
85 | ||
86 | nwritten = write(fd,ibuf,nread); | |
87 | ||
88 | if (nwritten != nread) { | |
89 | fprintf(stderr,"Bad write to %s errno = %d\n", | |
90 | argv[2],errno); | |
91 | exit(7); | |
92 | } | |
93 | } | |
94 | ||
95 | else { | |
96 | fprintf(stderr,"Bad read from %s errno = %d\n", argv[0],errno); | |
97 | exit(7); | |
98 | ||
99 | } | |
100 | } | |
101 | ||
102 | close(fd); | |
103 | close(ed); | |
104 | ||
105 | exit(0); | |
106 | } |