Commit | Line | Data |
---|---|---|
5f5b6417 BJ |
1 | #include <stdio.h> |
2 | #include <ctype.h> | |
3 | /* | |
4 | * whatis - what the heck is that file anyways | |
5 | * | |
6 | * Bill Joy UCB | |
7 | */ | |
8 | ||
9 | char *calloc(); | |
10 | char *trim(); | |
11 | unsigned blklen(); | |
12 | ||
13 | main(argc, argv) | |
14 | int argc; | |
15 | char *argv[]; | |
16 | { | |
17 | register char **avp; | |
18 | ||
19 | argc--, argv++; | |
20 | if (argc == 0) { | |
21 | fprintf(stderr, "whatis name ...\n"); | |
22 | exit(1); | |
23 | } | |
24 | if (freopen("/usr/lib/whatis", "r", stdin) == NULL) { | |
25 | perror("/usr/lib/whatis"); | |
26 | exit (1); | |
27 | } | |
28 | argv[argc] = 0; | |
29 | for (avp = argv; *avp; avp++) | |
30 | *avp = trim(*avp); | |
31 | whatis(argv); | |
32 | exit(0); | |
33 | } | |
34 | ||
35 | whatis(argv) | |
36 | char **argv; | |
37 | { | |
38 | char buf[BUFSIZ]; | |
39 | register char *gotit; | |
40 | register char **vp; | |
41 | ||
42 | gotit = calloc(1, blklen(argv)); | |
43 | while (fgets(buf, sizeof buf, stdin) != NULL) | |
44 | for (vp = argv; *vp; vp++) | |
45 | if (match(buf, *vp)) { | |
46 | printf("%s", buf); | |
47 | gotit[vp - argv] = 1; | |
48 | for (vp++; *vp; vp++) | |
49 | if (match(buf, *vp)) | |
50 | gotit[vp - argv] = 1; | |
51 | break; | |
52 | } | |
53 | for (vp = argv; *vp; vp++) | |
54 | if (gotit[vp - argv] == 0) | |
55 | printf("%s: not found\n", *vp); | |
56 | } | |
57 | ||
58 | match(buf, str) | |
59 | char *buf, *str; | |
60 | { | |
61 | register char *bp, *cp; | |
62 | ||
63 | bp = buf; | |
64 | again: | |
65 | cp = str; | |
66 | while (*bp && *cp && lmatch(*bp, *cp)) | |
67 | bp++, cp++; | |
68 | if (*cp == 0 && (*bp == '(' || *bp == ',' || *bp == '\t' || *bp == ' ')) | |
69 | return (1); | |
70 | while (isalpha(*bp) || isdigit(*bp)) | |
71 | bp++; | |
72 | if (*bp != ',') | |
73 | return (0); | |
74 | bp++; | |
75 | while (isspace(*bp)) | |
76 | bp++; | |
77 | goto again; | |
78 | } | |
79 | ||
80 | lmatch(c, d) | |
81 | char c, d; | |
82 | { | |
83 | ||
84 | if (c == d) | |
85 | return (1); | |
86 | if (!isalpha(c) || !isalpha(d)) | |
87 | return (0); | |
88 | if (islower(c)) | |
89 | c = toupper(c); | |
90 | if (islower(d)) | |
91 | d = toupper(d); | |
92 | return (c == d); | |
93 | } | |
94 | ||
95 | unsigned | |
96 | blklen(ip) | |
97 | register char **ip; | |
98 | { | |
99 | register int i = 0; | |
100 | ||
101 | while (*ip++) | |
102 | i++; | |
103 | return (i); | |
104 | } | |
105 | ||
106 | char * | |
107 | trim(cp) | |
108 | register char *cp; | |
109 | { | |
110 | register char *dp; | |
111 | ||
112 | for (dp = cp; *dp; dp++) | |
113 | if (*dp == '/') | |
114 | cp = dp + 1; | |
115 | if (cp[0] != '.') { | |
116 | if (cp + 3 <= dp && dp[-2] == '.' && any(dp[-1], "cosa12345678npP")) | |
117 | dp[-2] = 0; | |
118 | if (cp + 4 <= dp && dp[-3] == '.' && any(dp[-2], "13") && isalpha(dp[-1])) | |
119 | dp[-3] = 0; | |
120 | } | |
121 | return (cp); | |
122 | } | |
123 | ||
124 | any(c, cp) | |
125 | register int c; | |
126 | register char *cp; | |
127 | { | |
128 | ||
129 | while (*cp) | |
130 | if (c == *cp++) | |
131 | return (1); | |
132 | return (0); | |
133 | } |