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Annotation of 41BSD/cmd/chown.c, revision 1.1

1.1     ! root        1: static char *sccsid = "@(#)chown.c     4.1 (Berkeley) 10/1/80";
        !             2: /*
        !             3:  * chown uid file ...
        !             4:  */
        !             5: 
        !             6: #include <stdio.h>
        !             7: #include <ctype.h>
        !             8: #include <sys/types.h>
        !             9: #include <sys/stat.h>
        !            10: #include <pwd.h>
        !            11: 
        !            12: struct passwd  *pwd,*getpwnam();
        !            13: struct stat    stbuf;
        !            14: int    uid;
        !            15: int    status;
        !            16: 
        !            17: main(argc, argv)
        !            18: char *argv[];
        !            19: {
        !            20:        register c;
        !            21: 
        !            22:        if(argc < 3) {
        !            23:                printf("usage: chown uid file ...\n");
        !            24:                exit(4);
        !            25:        }
        !            26:        if(isnumber(argv[1])) {
        !            27:                uid = atoi(argv[1]);
        !            28:                goto cho;
        !            29:        }
        !            30:        if((pwd=getpwnam(argv[1])) == NULL) {
        !            31:                printf("unknown user id: %s\n",argv[1]);
        !            32:                exit(4);
        !            33:        }
        !            34:        uid = pwd->pw_uid;
        !            35: 
        !            36: cho:
        !            37:        for(c=2; c<argc; c++) {
        !            38:                stat(argv[c], &stbuf);
        !            39:                if(chown(argv[c], uid, stbuf.st_gid) < 0) {
        !            40:                        perror(argv[c]);
        !            41:                        status = 1;
        !            42:                }
        !            43:        }
        !            44:        exit(status);
        !            45: }
        !            46: 
        !            47: isnumber(s)
        !            48: char *s;
        !            49: {
        !            50:        register c;
        !            51: 
        !            52:        while(c = *s++)
        !            53:                if(!isdigit(c))
        !            54:                        return(0);
        !            55:        return(1);
        !            56: }

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