[hackers] [sbase] recurse: add symlink derefencing flags -H and -L || Tai Chi Minh Ralph Eastwood
commit fc5ff4ce946efec8b4f850c7b72f3fad2d3b03c0
Author: Tai Chi Minh Ralph Eastwood <tcmreastwood_AT_gmail.com>
Date: Mon Feb 9 19:53:24 2015 +0000
recurse: add symlink derefencing flags -H and -L
diff --git a/chgrp.c b/chgrp.c
index ede0233..27027dd 100644
--- a/chgrp.c
+++ b/chgrp.c
_AT_@ -10,19 +10,20 @@
static int gid;
static int status;
static int rflag;
+static char fflag = 'P';
static struct stat st;
static char *chown_f_name = "chown";
static int (*chown_f)(const char *, uid_t, gid_t) = chown;
static void
-chgrp(const char *path)
+chgrp(const char *path, char fflag)
{
if (chown_f(path, st.st_uid, gid) < 0) {
weprintf("%s %s:", chown_f_name, path);
status = 1;
}
if (rflag)
- recurse(path, chgrp);
+ recurse(path, chgrp, fflag);
}
static void
_AT_@ -44,6 +45,11 @@ main(int argc, char *argv[])
case 'R':
rflag = 1;
break;
+ case 'H':
+ case 'L':
+ case 'P':
+ fflag = ARGC();
+ break;
default:
usage();
} ARGEND;
_AT_@ -67,7 +73,7 @@ main(int argc, char *argv[])
status = 1;
continue;
}
- chgrp(*argv);
+ chgrp(*argv, fflag);
}
return status;
}
diff --git a/chmod.c b/chmod.c
index 9fbdf4e..e5074be 100644
--- a/chmod.c
+++ b/chmod.c
_AT_@ -9,7 +9,7 @@ static mode_t mask = 0;
static int ret = 0;
void
-chmodr(const char *path)
+chmodr(const char *path, char fflag)
{
struct stat st;
mode_t m;
_AT_@ -26,7 +26,7 @@ chmodr(const char *path)
ret = 1;
}
if (rflag)
- recurse(path, chmodr);
+ recurse(path, chmodr, fflag);
}
static void
_AT_@ -65,7 +65,7 @@ done:
usage();
for (++i; i < argc; i++)
- chmodr(argv[i]);
+ chmodr(argv[i], 'P');
return ret;
}
diff --git a/chown.c b/chown.c
index 575af43..228d4a2 100644
--- a/chown.c
+++ b/chown.c
_AT_@ -9,6 +9,7 @@
#include "util.h"
static int rflag = 0;
+static int fflag = 'P';
static uid_t uid = -1;
static gid_t gid = -1;
static int ret = 0;
_AT_@ -16,14 +17,14 @@ static char *chown_f_name = "chown";
static int (*chown_f)(const char *, uid_t, gid_t) = chown;
static void
-chownpwgr(const char *path)
+chownpwgr(const char *path, int fflag)
{
if (chown_f(path, uid, gid) < 0) {
weprintf("%s %s:", chown_f_name, path);
ret = 1;
}
if (rflag)
- recurse(path, chownpwgr);
+ recurse(path, chownpwgr, fflag);
}
static void
_AT_@ -48,6 +49,11 @@ main(int argc, char *argv[])
case 'r':
rflag = 1;
break;
+ case 'H':
+ case 'L':
+ case 'P':
+ fflag = ARGC();
+ break;
default:
usage();
} ARGEND;
_AT_@ -88,7 +94,7 @@ main(int argc, char *argv[])
}
}
for (; argc > 0; argc--, argv++)
- chownpwgr(argv[0]);
+ chownpwgr(argv[0], fflag);
return ret;
}
diff --git a/libutil/recurse.c b/libutil/recurse.c
index f9044e9..f2028f5 100644
--- a/libutil/recurse.c
+++ b/libutil/recurse.c
_AT_@ -11,14 +11,16 @@
#include "../util.h"
void
-recurse(const char *path, void (*fn)(const char *))
+recurse(const char *path, void (*fn)(const char *, char), char follow)
{
char buf[PATH_MAX];
struct dirent *d;
- struct stat st;
+ struct stat lst, st;
DIR *dp;
- if (lstat(path, &st) < 0 || !S_ISDIR(st.st_mode))
+ if (lstat(path, &lst) < 0 || stat(path, &st) < 0 ||
+ !(S_ISDIR(lst.st_mode) ||
+ (follow != 'P' && S_ISLNK(lst.st_mode) && S_ISDIR(st.st_mode))))
return;
if (!(dp = opendir(path)))
_AT_@ -35,7 +37,7 @@ recurse(const char *path, void (*fn)(const char *))
eprintf("path too long\n");
if (strlcat(buf, d->d_name, sizeof(buf)) >= sizeof(buf))
eprintf("path too long\n");
- fn(buf);
+ fn(buf, follow == 'H' ? 'P' : follow);
}
closedir(dp);
diff --git a/libutil/rm.c b/libutil/rm.c
index 9aaedab..505ef28 100644
--- a/libutil/rm.c
+++ b/libutil/rm.c
_AT_@ -12,7 +12,7 @@ void
rm(const char *path)
{
if (rm_rflag)
- recurse(path, rm);
+ recurse(path, rm, 'P');
if (remove(path) < 0) {
if (!rm_fflag)
weprintf("remove %s:", path);
diff --git a/tar.c b/tar.c
index 7083b5c..dec1bdc 100644
--- a/tar.c
+++ b/tar.c
_AT_@ -44,7 +44,7 @@ static void putoctal(char *, unsigned, int);
static int archive(const char *);
static int unarchive(char *, int, char[Blksiz]);
static int print(char *, int , char[Blksiz]);
-static void c(const char *);
+static void c(const char *, char);
static void xt(int (*)(char*, int, char[Blksiz]));
static FILE *tarfile;
_AT_@ -52,6 +52,7 @@ static ino_t tarinode;
static dev_t tardev;
static int mflag;
+static char fflag = 'P';
static char filtermode;
static FILE *
_AT_@ -245,10 +246,10 @@ print(char * fname, int l, char b[Blksiz])
}
static void
-c(const char * path)
+c(const char * path, char fflag)
{
archive(path);
- recurse(path, c);
+ recurse(path, c, fflag);
}
static void
_AT_@ -304,6 +305,9 @@ main(int argc, char *argv[])
usage();
filtermode = ARGC();
break;
+ case 'h':
+ fflag = 'L';
+ break;
default:
usage();
} ARGEND;
_AT_@ -325,7 +329,7 @@ main(int argc, char *argv[])
tarfile = stdout;
}
chdir(dir);
- c(argv[0]);
+ c(argv[0], fflag);
break;
case 't':
case 'x':
diff --git a/util.h b/util.h
index 448f51e..d1970c7 100644
--- a/util.h
+++ b/util.h
_AT_@ -60,7 +60,7 @@ mode_t getumask(void);
char *humansize(double);
mode_t parsemode(const char *, mode_t, mode_t);
void putword(const char *);
-void recurse(const char *, void (*)(const char *));
+void recurse(const char *, void (*)(const char *, char), char);
#undef strtonum
long long strtonum(const char *, long long, long long, const char **);
long long enstrtonum(int, const char *, long long, long long);
Received on Mon Feb 16 2015 - 16:56:49 CET
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: Mon Feb 16 2015 - 17:00:13 CET