date and time created 81/02/28 21:15:55 by wnj

[unix-history] / usr / src / old / catman / catman.c

static char *sccsid = "@(#)catman.c     4.1 (Berkeley) %G%";
# include       <stdio.h>
# include       <sys/types.h>
# include       <dir.h>
# include       <stat.h>
# include       <ctype.h>

# define        reg     register
# define        bool    char

# define        SYSTEM(str)     (pflag ? printf("%s\n", str) : system(str))

char            buf[BUFSIZ],
               pflag = 0,
               nflag = 0,
               wflag = 0;

main(ac, av)
int     ac;
char    *av[]; {

       reg char        *tsp, *msp, *csp, *man, *cat, *sp;
       reg FILE        *mdir, *inf;
       reg long        time;
       reg char        *sections;
       reg int         exstat = 0;
       reg bool        changed = 0;
       static struct dir       dir;
       static struct stat      sbuf;

       while (ac > 1) {
               av++;
               if (strcmp(*av, "-p") == 0)
                       pflag++;
               else if (strcmp(*av, "-n") == 0)
                       nflag++;
               else if (strcmp(*av, "-w") == 0)
                       wflag++;
               else if (*av[0] == '-')
                       goto usage;
               else
                       break;
               ac--;
       }
       if (ac == 2)
               sections = *av;
       else if (ac < 2)
               sections = "12345678";
       else {
usage:
               printf("usage: catman [ -p ] [ -n ] [ -w ] [ sections ]\n");
               exit(-1);
       }
       if (wflag)
               goto whatis;
       chdir("/usr/man");
       man = "manx/xxxxxxxxxxxxxx";
       cat = "catx/xxxxxxxxxxxxxx";
       msp = &man[5];
       csp = &cat[5];
       umask(0);
       for (sp = sections; *sp; sp++) {
               man[3] = cat[3] = *sp;
               *msp = *csp = '\0';
               if ((mdir = fopen(man, "r")) == NULL) {
                       fprintf(stderr, "fopen:");
                       perror(man);
                       exstat = 1;
                       continue;
               }
               if (stat(cat, &sbuf) < 0) {
                       sprintf(buf, "mkdir %s", cat);
                       SYSTEM(buf);
                       stat(cat, &sbuf);
               }
               if ((sbuf.st_mode & 0777) != 0777)
                       chmod(cat, 0777);
               while (fread((char *) &dir, sizeof dir, 1, mdir) > 0) {
                       if (dir.d_ino == 0 || dir.d_name[0] == '.')
                               continue;
                       /*
                        * make sure this is a man file, i.e., that it
                        * ends in .[0-9] or .[0-9][a-z]
                        */
                       tsp = rindex(dir.d_name, '.');
                       if (tsp == NULL)
                               continue;
                       if (!isdigit(*++tsp) || ((*++tsp && !isalpha(*tsp)) || *++tsp))
                               continue;

                       strncpy(msp, dir.d_name, DIRSIZ);
                       if ((inf = fopen(man, "r")) == NULL) {
                               perror(man);
                               exstat = 1;
                               continue;
                       }
                       if (getc(inf) == '.' && getc(inf) == 's'
                           && getc(inf) == 'o') {
                               fclose(inf);
                               continue;
                       }
                       fclose(inf);
                       strncpy(csp, dir.d_name, DIRSIZ);
                       if (stat(cat, &sbuf) >= 0) {
                               time = sbuf.st_mtime;
                               stat(man, &sbuf);
                               if (time >= sbuf.st_mtime)
                                       continue;
                               unlink(cat);
                       }
                       sprintf(buf, "nroff -man %s > %s", man, cat);
                       SYSTEM(buf);
                       changed = 1;
               }
               fclose(mdir);
       }
       if (changed && !nflag) {
whatis:
               if (pflag)
                       printf("/bin/sh /usr/lib/makewhatis\n");
               else {
                       execl("/bin/sh", "/bin/sh", "/usr/lib/makewhatis", 0);
                       perror("/bin/sh /usr/lib/makewhatis");
                       exstat = 1;
               }
       }
       exit(exstat);
}