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Sourcecode: acl version File versions

get-acl.c

#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <libgen.h>
#include <sys/stat.h>
#include <sys/acl.h>

const char *progname;

int main(int argc, char *argv[])
{
      int n, ret = 0;

      progname = basename(argv[0]);

      if (argc == 1) {
            printf("%s -- get access control lists of files\n"
                  "Usage: %s file ...\n",
                  progname, progname);
            return 1;
      }

      for (n = 1; n < argc; n++) {
            struct stat st;
            acl_t acl, default_acl;
            char *acl_text, *default_acl_text, *token;
            
            if (stat(argv[n], &st) != 0) {
                  fprintf(stderr, "%s: %s: %s\n",
                        progname, argv[n], strerror(errno));
                  ret = 1;
                  continue;
            }

            acl = acl_get_file(argv[n], ACL_TYPE_ACCESS);
            if (acl == NULL) {
                  fprintf(stderr, "%s: getting acl of %s: %s\n",
                        progname, argv[n], strerror(errno));
                  ret = 1;
                  continue;
            }
            acl_text = acl_to_text(acl, NULL);
            acl_free(acl);

            if (S_ISDIR(st.st_mode)) {
                  default_acl = acl_get_file(argv[n], ACL_TYPE_DEFAULT);
                  if (default_acl == NULL) {
                        acl_free(acl_text);
                        fprintf(stderr, "%s: getting default acl "
                              "of %s: %s\n", progname, argv[n],
                              strerror(errno));
                        ret = 1;
                        continue;
                  }
                  default_acl_text = acl_to_text(default_acl, NULL);
                  acl_free(default_acl);
            }

            printf("# file: %s\n"
                   "# owner: %d\n"
                   "# group: %d\n"
                   "%s",
                  argv[n], st.st_uid, st.st_gid, acl_text);

            if (S_ISDIR(st.st_mode)) {
                  token = strtok(default_acl_text, "\n");
                  while (token) {
                        printf("default:%s\n", token);
                        token = strtok(NULL, "\n");
                  }
            }
            printf("\n");

            acl_free(acl_text);
            acl_free(default_acl_text);
      }
      return ret;
}


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