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Annotation of researchv10dc/cmd/learn/lib/src/start.c, revision 1.1.1.1

1.1       root        1: #include "stdio.h"
                      2: #include "lrnref"
                      3: #include "sys/types.h"
                      4: #include "sys/dir.h"
                      5: #define        ND      64
                      6: 
                      7: start(lesson)
                      8: char *lesson;
                      9: {
                     10:        struct direct dv[ND], *dm, *dp;
                     11:        int f, c, n;
                     12:        char where [100];
                     13: 
                     14:        f = open(".", 0);
                     15:        n = read(f, dv, ND*sizeof(*dp));
                     16:        n /= sizeof(*dp);
                     17:        if (n==ND)
                     18:                fprintf(stderr, "lesson too long\n");
                     19:        dm = dv+n;
                     20:        for(dp=dv; dp<dm; dp++)
                     21:                if (dp->d_ino) {
                     22:                        n = strlen(dp->d_name);
                     23:                        if (n>sizeof(dp->d_name)) n=sizeof(dp->d_name);
                     24:                        if (dp->d_name[n-2] == '.' && dp->d_name[n-1] == 'c')
                     25:                                continue;
                     26:                        c = dp->d_name[0];
                     27:                        if (c>='a' && c<= 'z')
                     28:                                unlink(dp->d_name);
                     29:                }
                     30:        close(f);
                     31:        if (ask)
                     32:                return;
                     33:        sprintf(where, "../../%s/L%s", sname, lesson);
                     34:        if (access(where, 04)==0)       /* there is a file */
                     35:                return;
                     36:        fprintf(stderr, "No lesson %s\n",lesson);
                     37:        wrapup(1);
                     38: }
                     39: 
                     40: fcopy(new,old)
                     41: char *new, *old;
                     42: {
                     43:        char b[512];
                     44:        int n, fn, fo;
                     45:        fn = creat(new, 0666);
                     46:        fo = open(old,0);
                     47:        if (fo<0) return;
                     48:        if (fn<0) return;
                     49:        while ( (n=read(fo, b, 512)) > 0)
                     50:                write(fn, b, n);
                     51:        close(fn);
                     52:        close(fo);
                     53: }

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