forked from openkylin/platform_build
66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <private/android_filesystem_config.h>
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#define DO_DEBUG 1
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#define ERROR(fmt,args...) \
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do { \
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fprintf(stderr, "%s:%d: ERROR: " fmt, \
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__FILE__, __LINE__, ##args); \
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} while (0)
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#if DO_DEBUG
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#define DEBUG(fmt,args...) \
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do { fprintf(stderr, "DEBUG: " fmt, ##args); } while(0)
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#else
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#define DEBUG(x...) do {} while(0)
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#endif
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void
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print_help(void)
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{
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fprintf(stderr, "fs_get_stats: retrieve the target file stats "
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"for the specified file\n");
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fprintf(stderr, "usage: fs_get_stats cur_perms is_dir filename\n");
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fprintf(stderr, "\tcur_perms - The current permissions of "
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"the file\n");
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fprintf(stderr, "\tis_dir - Is filename is a dir, 1. Otherwise, 0.\n");
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fprintf(stderr, "\tfilename - The filename to lookup\n");
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fprintf(stderr, "\n");
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}
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int
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main(int argc, const char *argv[])
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{
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char *endptr;
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char is_dir = 0;
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unsigned perms = 0;
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unsigned uid = (unsigned)-1;
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unsigned gid = (unsigned)-1;
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if (argc < 4) {
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ERROR("Invalid arguments\n");
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print_help();
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exit(-1);
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}
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perms = (unsigned)strtoul(argv[1], &endptr, 0);
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if (!endptr || (endptr == argv[1]) || (*endptr != '\0')) {
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ERROR("current permissions must be a number. Got '%s'.\n", argv[1]);
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exit(-1);
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}
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if (!strcmp(argv[2], "1"))
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is_dir = 1;
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uint64_t capabilities;
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fs_config(argv[3], is_dir, &uid, &gid, &perms, &capabilities);
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fprintf(stdout, "%d %d 0%o\n", uid, gid, perms);
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return 0;
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}
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