symlink - c++ - resolve all symbolic links defined in a file path -

short version

how resolved path path 1 of dirs symbolic link:

example:

say path = /x/y/d/f1 y symbolic link /a/b

so result of resolved file path be: /x/a/b/d/f1

i'd write c++ function copy files dir1 dir2 (of course not actual issue reduction of bigger , more complex problem).

prior copy process i'd remove files in dir2 going copied dir1. have:

assume have file 'f1' in dir1 , file 'f1' in dir2, process do:

my problem following:

say dir 'y' symbolic link /a/b/c/. when remove /x/y/d/f1, removing /a/b/c/d/f1. (my example may have holes in it, hopw idea)

i'd avoid this, meaning, when come remove /x/y/d/f1 want able know i'll removing /x/y/d/f1 , skip remove

i tried using posix readlink() function works when file 'f1' symbolic link not work when 1 of parent dirs symbolic link.

any ideas?

following link give answer.

you can use following code resolve symilnks:

char buf[512]; int count = readlink("/x/y/d", buf, sizeof(buf)); if (count >= 0) {     buf[count] = '\0';     printf("%s -> %s\n", argv[1], buf); }

in above code "d" path component should symlink. have iterate , resolve each path component.