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Annotation of researchv10no/cmd/ps/getfs.c, revision 1.1

1.1     ! root        1: #include "ps.h"
        !             2: #include <fstab.h>
        !             3: #include <sys/inode.h>
        !             4: 
        !             5: static List namelist;
        !             6: static Entry *prev;
        !             7: 
        !             8: char *
        !             9: getfs(ip)
        !            10: register struct inode *ip;
        !            11: {
        !            12:        register Entry *ep;
        !            13: 
        !            14:        if (ip->i_fstyp)        /* temp */
        !            15:                return 0;
        !            16:        if((ep = prev) && ep->e_val == ip->i_dev)
        !            17:                return ep->e_name;
        !            18:        for(ep = namelist.begin; ep; ep = ep->next) {
        !            19:                if(ep->e_val == ip->i_dev ||
        !            20:                    (major(ep->e_val) == major(ip->i_dev) && minor(ep->e_val) == 255)) {
        !            21:                        prev = ep;
        !            22:                        return ep->e_name;
        !            23:                }
        !            24:        }
        !            25:        return 0;
        !            26: }
        !            27: 
        !            28: getfstab()
        !            29: {
        !            30:        register Entry *ep;
        !            31:        register struct fstab *fp;
        !            32:        register char *p;
        !            33:        char *strrchr();
        !            34:        struct stat statb;
        !            35: 
        !            36:        while(fp = getfsent()) {
        !            37:                if(stat(fp->fs_spec, &statb) == -1)
        !            38:                        continue;
        !            39:                if((ep = Malloc(Entry, 1)) == 0)
        !            40:                        break;
        !            41:                ep->next = namelist.begin;
        !            42:                namelist.begin = ep;
        !            43:                namelist.nentry++;
        !            44:                ep->e_val = statb.st_rdev;
        !            45:                if((p = strrchr(fp->fs_spec, '/')) == 0)
        !            46:                        p = fp->fs_spec;
        !            47:                else
        !            48:                        p++;
        !            49:                strncpy(ep->e_name, p, sizeof(ep->e_name));
        !            50:        }
        !            51:        endfsent();
        !            52: }

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