commit 97905f699111f114218b736ccd3979bce3095d9d
Author: sin <[email protected]>
Date: Mon Apr 20 16:31:51 2015 +0100
Fix tar(1) handling of archives with improper internal order
Not all archives are packed in such way to be generated without
having to recursively generate the output path.
For now, reuse the function from mkdir.c and later move it to
libutil.
diff --git a/tar.c b/tar.c
index afe7854..d680d46 100644
--- a/tar.c
+++ b/tar.c
@@ -4,6 +4,7 @@
#include <errno.h>
#include <grp.h>
+#include <libgen.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
@@ -173,19 +174,46 @@ archive(const char *path)
}
static int
+mkdirp(char *path)
+{
+ char *p;
+
+ for (p = path; *p; p++) {
+ if (*p != '/')
+ continue;
+ *p = '\0';
+ if (mkdir(path, S_IRWXU | S_IRWXG | S_IRWXO) < 0 && errno !=
EEXIST) {
+ weprintf("mkdir %s:", path);
+ *p = '/';
+ return -1;
+ }
+ *p = '/';
+ }
+ if (mkdir(path, S_IRWXU | S_IRWXG | S_IRWXO) < 0 && errno != EEXIST) {
+ weprintf("mkdir %s:", path);
+ return -1;
+ }
+ return 0;
+}
+
+static int
unarchive(char *fname, ssize_t l, char b[BLKSIZ])
{
FILE *f = NULL;
struct timeval times[2];
struct header *h = (void *)b;
long mode, major, minor, type, mtime, uid, gid;
- char lname[101], *p;
+ char lname[101], *tmp, *p;
if (!mflag && ((mtime = strtoul(h->mtime, &p, 8)) < 0 || *p != '\0'))
eprintf("strtoul %s: invalid number\n", h->mtime);
if (unlink(fname) < 0 && errno != ENOENT && errno != EISDIR)
eprintf("unlink %s:", fname);
+ tmp = strdup(fname);
+ mkdirp(dirname(tmp));
+ free(tmp);
+
switch (h->type) {
case REG:
case AREG:
