For example, I have directory a and b under my current working directory. I'm trying to locate file X, how can I modify the stat() command so that it checks both directory a and b instead of just current working directory? would stat(a/file, &buf) work? also, to check if it's executable, I know the code is buf.S_IXUSR, does if (buf.S_IXUSR) work?
thanks!
I suggest you consult the stat(2) man page.
Here's an example of how to use stat:
struct stat buf;
if (stat("a/file", &buf) != 0) {
// handle failure
}
// Check the `st_mode` field to see if the `S_IXUSR` bit is set
if (buf.st_mode & S_IXUSR) {
// Executable by user
}
However, for your use case, you might consider access(2) instead:
if (access("/path/to/file", X_OK) == 0) {
// File exists and is executable by the calling process's
// _real_ UID / GID.
}
man stat, didn't know there's man 2 stat, thanks!stat("a/file", &buf) doesn't seem to work since it always says no such file, even if the file is therea a subdirectory of the program's current working directory?char d1[50] strcat(d1, "a/") strcat(d1, "file") to generate the string "a/file" since file is from user input, however every time I try to read d1, it gives me @#!a/file, no idea where those symbols came from
strcpy(d1, "a/").