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package/makedevs: add recursive option

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This patch adds the option to change owner/permission
of a directory recursively.

[Thomas: s/folder/directory/, as suggested by Yann.]

Signed-off-by: Angelo Compagnucci <angelo.compagnucci@gmail.com>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Angelo Compagnucci 2015-04-11 15:40:31 +02:00 committed by Thomas Petazzoni
parent 5e9766ed67
commit 410f9b6013
1 changed files with 31 additions and 0 deletions
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31
package/makedevs/makedevs.c
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@ -34,8 +34,12 @@
#ifndef __APPLE__ #ifndef __APPLE__
#include <sys/sysmacros.h> /* major() and minor() */ #include <sys/sysmacros.h> /* major() and minor() */
#endif #endif
#include <ftw.h>
const char *bb_applet_name; const char *bb_applet_name;
uid_t recursive_uid;
gid_t recursive_gid;
unsigned int recursive_mode;
void bb_verror_msg(const char *s, va_list p) void bb_verror_msg(const char *s, va_list p)
{ {
@ -332,6 +336,7 @@ void bb_show_usage(void)
fprintf(stderr, "Where name is the file name, type can be one of:\n"); fprintf(stderr, "Where name is the file name, type can be one of:\n");
fprintf(stderr, " f A regular file\n"); fprintf(stderr, " f A regular file\n");
fprintf(stderr, " d Directory\n"); fprintf(stderr, " d Directory\n");
fprintf(stderr, " r Directory recursively\n");
fprintf(stderr, " c Character special device file\n"); fprintf(stderr, " c Character special device file\n");
fprintf(stderr, " b Block special device file\n"); fprintf(stderr, " b Block special device file\n");
fprintf(stderr, " p Fifo (named pipe)\n"); fprintf(stderr, " p Fifo (named pipe)\n");
@ -364,6 +369,23 @@ void bb_show_usage(void)
exit(1); exit(1);
} }
bb_recursive(const char *fpath, const struct stat *sb,
int tflag, struct FTW *ftwbuf){
if (chown(fpath, recursive_uid, recursive_gid) == -1) {
bb_perror_msg("chown failed for %s", fpath);
return -1;
}
if (recursive_mode != -1) {
if (chmod(fpath, recursive_mode) < 0) {
bb_perror_msg("chmod failed for %s", fpath);
return -1;
}
}
return 0;
}
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
int opt; int opt;
@ -474,6 +496,15 @@ int main(int argc, char **argv)
ret = EXIT_FAILURE; ret = EXIT_FAILURE;
goto loop; goto loop;
} }
} else if (type == 'r') {
recursive_uid = uid;
recursive_gid = gid;
recursive_mode = mode;
if (nftw(full_name, bb_recursive, 20, FTW_MOUNT | FTW_PHYS) < 0) {
bb_perror_msg("line %d: recursive failed for %s", linenum, full_name);
ret = EXIT_FAILURE;
goto loop;
}
} else } else
{ {
dev_t rdev; dev_t rdev;