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5073ce2e CT |
1 | /* |
2 | * Copyright (c) 1992 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * This software was developed by the Computer Systems Engineering group | |
6 | * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and | |
7 | * contributed to Berkeley. | |
8 | * | |
9 | * All advertising materials mentioning features or use of this software | |
10 | * must display the following acknowledgement: | |
11 | * This product includes software developed by the University of | |
12 | * California, Lawrence Berkeley Laboratories. | |
13 | * | |
14 | * %sccs.include.redist.c% | |
15 | * | |
b8d1308c | 16 | * @(#)mkswap.c 5.2 (Berkeley) %G% |
5073ce2e CT |
17 | */ |
18 | ||
19 | #include <sys/param.h> | |
20 | #include <errno.h> | |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
24 | #include "config.h" | |
25 | ||
26 | static int mkoneswap __P((struct config *)); | |
27 | ||
28 | /* | |
29 | * Make the various swap*.c files. Nothing to do for generic swap. | |
30 | */ | |
31 | int | |
32 | mkswap() | |
33 | { | |
34 | register struct config *cf; | |
35 | ||
36 | for (cf = allcf; cf != NULL; cf = cf->cf_next) | |
37 | if (cf->cf_root != NULL && mkoneswap(cf)) | |
38 | return (1); | |
39 | return (0); | |
40 | } | |
41 | ||
42 | static int | |
43 | mkoneswap(cf) | |
44 | register struct config *cf; | |
45 | { | |
46 | register struct nvlist *nv; | |
47 | register FILE *fp; | |
48 | register char *fname; | |
49 | char buf[200]; | |
50 | ||
51 | (void)sprintf(buf, "swap%s.c", cf->cf_name); | |
52 | fname = path(buf); | |
53 | if ((fp = fopen(fname, "w")) == NULL) { | |
54 | (void)fprintf(stderr, "config: cannot write %s: %s\n", | |
55 | fname, strerror(errno)); | |
56 | return (1); | |
57 | } | |
58 | if (fputs("\ | |
59 | #include <sys/param.h>\n\ | |
60 | #include <sys/conf.h>\n\n", fp) < 0) | |
61 | goto wrerror; | |
62 | nv = cf->cf_root; | |
63 | if (fprintf(fp, "dev_t\trootdev = makedev(%d, %d);\t/* %s */\n", | |
64 | major(nv->nv_int), minor(nv->nv_int), nv->nv_str) < 0) | |
65 | goto wrerror; | |
66 | nv = cf->cf_dump; | |
67 | if (fprintf(fp, "dev_t\tdumpdev = makedev(%d, %d);\t/* %s */\n", | |
68 | major(nv->nv_int), minor(nv->nv_int), nv->nv_str) < 0) | |
69 | goto wrerror; | |
70 | if (fputs("\nstruct\tswdevt swdevt[] = {\n", fp) < 0) | |
71 | goto wrerror; | |
72 | for (nv = cf->cf_swap; nv != NULL; nv = nv->nv_next) | |
73 | if (fprintf(fp, "\t{ makedev(%d, %d),\t0,\t0 },\t/* %s */\n", | |
74 | major(nv->nv_int), minor(nv->nv_int), nv->nv_str) < 0) | |
75 | goto wrerror; | |
76 | if (fputs("\t{ NODEV, 0, 0 }\n};\n", fp) < 0) | |
77 | goto wrerror; | |
78 | if (fclose(fp)) { | |
79 | fp = NULL; | |
80 | goto wrerror; | |
81 | } | |
82 | free(fname); | |
83 | return (0); | |
84 | wrerror: | |
85 | (void)fprintf(stderr, "config: error writing %s: %s\n", | |
86 | fname, strerror(errno)); | |
87 | if (fp != NULL) | |
88 | (void)fclose(fp); | |
89 | /* (void)unlink(fname); */ | |
90 | free(fname); | |
91 | return (1); | |
92 | } |