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Annotation of 3BSD/cmd/chown.c, revision 1.1.1.1

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

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