| 1 | /* Copyright (c) 1979 Regents of the University of California */ |
| 2 | #include <retrofit.h> |
| 3 | #include <stdio.h> |
| 4 | #include <sgtty.h> |
| 5 | #include <sys/types.h> |
| 6 | #include <sys/stat.h> |
| 7 | /* |
| 8 | * man - intelligent man command |
| 9 | * |
| 10 | * Author: Bill Joy UCB August 25, 1977 |
| 11 | * |
| 12 | * Man is an intelligent man command which obviates the need to know |
| 13 | * section numbers in the manual. Also if the standard output is a teletype and |
| 14 | * the option - is not given we pipe through "ssp and cr3" to eliminate piled |
| 15 | * up blank lines. |
| 16 | */ |
| 17 | int nocr3; |
| 18 | char *strcpy(); |
| 19 | char *strcat(); |
| 20 | int section; |
| 21 | int subsec; |
| 22 | int troffit; |
| 23 | |
| 24 | #define eq(a,b) (strcmp(a,b) == 0) |
| 25 | |
| 26 | main(argc, argv) |
| 27 | int argc; |
| 28 | char *argv[]; |
| 29 | { |
| 30 | |
| 31 | if (argc <= 1) { |
| 32 | fprintf(stderr, "Usage: man [ section ] name ...\n"); |
| 33 | exit(1); |
| 34 | } |
| 35 | if (chdir("/usr/man") < 0) { |
| 36 | fprintf(stderr, "Can't chdir to /usr/man.\n"); |
| 37 | exit(1); |
| 38 | } |
| 39 | argc--, argv++; |
| 40 | while (argc > 0 && argv[0][0] == '-') { |
| 41 | switch(argv[0][1]) { |
| 42 | |
| 43 | case 0: |
| 44 | nocr3++; |
| 45 | break; |
| 46 | |
| 47 | case 't': |
| 48 | troffit++; |
| 49 | break; |
| 50 | } |
| 51 | argc--, argv++; |
| 52 | } |
| 53 | if (troffit == 0 && nocr3 == 0 && !isatty(1)) |
| 54 | nocr3++; |
| 55 | section = 0; |
| 56 | do { |
| 57 | if (eq(argv[0], "new") || eq(argv[0], "ucb")) { |
| 58 | section = 'u'; |
| 59 | goto sectin; |
| 60 | } else if (eq(argv[0], "public")) { |
| 61 | section = 'p'; |
| 62 | goto sectin; |
| 63 | } else if (eq(argv[0], "sccs")) { |
| 64 | section = 's'; |
| 65 | goto sectin; |
| 66 | } else if (argv[0][0] >= '0' && argv[0][0] <= '9' && (argv[0][1] == 0 || argv[0][2] == 0)) { |
| 67 | section = argv[0][0]; |
| 68 | subsec = argv[0][1]; |
| 69 | sectin: |
| 70 | argc--, argv++; |
| 71 | if (argc == 0) { |
| 72 | fprintf(stderr, "But what do you want from section %s?\n", argv[-1]); |
| 73 | exit(1); |
| 74 | } |
| 75 | continue; |
| 76 | } |
| 77 | manual(section, argv[0]); |
| 78 | argc--, argv++; |
| 79 | } while (argc > 0); |
| 80 | exit(0); |
| 81 | } |
| 82 | |
| 83 | manual(sec, name) |
| 84 | char sec; |
| 85 | char *name; |
| 86 | { |
| 87 | char section = sec; |
| 88 | char work[100]; |
| 89 | int ss; |
| 90 | struct stat stbuf; |
| 91 | int last; |
| 92 | char *sp = "u16823457ps"; |
| 93 | |
| 94 | strcpy(work, "manx/"); |
| 95 | strcat(work, name); |
| 96 | strcat(work, ".x"); |
| 97 | last = strlen(work) - 1; |
| 98 | if (section == '1') { |
| 99 | sp = "u16p"; |
| 100 | section = 0; |
| 101 | } |
| 102 | if (section == 0) { |
| 103 | ss = 0; |
| 104 | for (section = *sp++; section; section = *sp++) { |
| 105 | work[3] = section; |
| 106 | work[last] = section; |
| 107 | work[last+1] = 0; |
| 108 | if (stat(work, &stbuf) >= 0) |
| 109 | break; |
| 110 | if (work[last] == '1' || work[last] == '3') { |
| 111 | char *cp; |
| 112 | search: |
| 113 | cp = work[last] == '1' ? "mcg" : "xmsf"; |
| 114 | while (*cp) { |
| 115 | work[last+1] = *cp++; |
| 116 | if (stat(work, &stbuf) >= 0) { |
| 117 | ss = work[last+1]; |
| 118 | goto found; |
| 119 | } |
| 120 | } |
| 121 | if (ss = 0) |
| 122 | work[last+1] = 0; |
| 123 | } |
| 124 | } |
| 125 | if (section == 0) { |
| 126 | if (sec == 0) |
| 127 | printf("No manual entry for %s.\n", name); |
| 128 | else |
| 129 | printf("No entry for %s in section %c of the manual.\n", name, sec); |
| 130 | return; |
| 131 | } |
| 132 | } else { |
| 133 | work[3] = section; |
| 134 | work[last] = section; |
| 135 | work[last+1] = subsec; |
| 136 | if (stat(work, &stbuf) < 0) { |
| 137 | if ((section == '1' || section == '3') && subsec == 0) { |
| 138 | sp = "\0"; |
| 139 | goto search; |
| 140 | } |
| 141 | printf("No entry for %s in section %c", name, section); |
| 142 | if (subsec) |
| 143 | putchar(subsec); |
| 144 | printf(" of the manual.\n"); |
| 145 | return; |
| 146 | } |
| 147 | } |
| 148 | found: |
| 149 | if (troffit) |
| 150 | troff(work); |
| 151 | else |
| 152 | nroff(work); |
| 153 | } |
| 154 | |
| 155 | nroff(cp) |
| 156 | char *cp; |
| 157 | { |
| 158 | char cmdbuf[BUFSIZ]; |
| 159 | |
| 160 | if (nocr3) |
| 161 | sprintf(cmdbuf, "nroff -h -man %s", cp); |
| 162 | else |
| 163 | sprintf(cmdbuf, "nroff -h -man %s | /usr/ucb/ssp | /usr/ucb/cr3", cp); |
| 164 | system(cmdbuf); |
| 165 | } |
| 166 | |
| 167 | troff(cp) |
| 168 | char *cp; |
| 169 | { |
| 170 | char cmdbuf[BUFSIZ]; |
| 171 | |
| 172 | sprintf(cmdbuf, "/usr/ucb/troff -t -man /usr/lib/tmac/tmac.vcat %s | /usr/ucb/vsort | /usr/ucb/vpr -t", cp); |
| 173 | system(cmdbuf); |
| 174 | } |
| 175 | |
| 176 | any(c, sp) |
| 177 | register int c; |
| 178 | register char *sp; |
| 179 | { |
| 180 | register int d; |
| 181 | |
| 182 | while (d = *sp++) |
| 183 | if (c == d) |
| 184 | return (1); |
| 185 | return (0); |
| 186 | } |