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authormidipix <writeonce@midipix.org>2024-06-06 21:11:11 +0000
committermidipix <writeonce@midipix.org>2024-06-06 23:39:26 +0000
commit37f51391c8888c7f84e27ec6995fda5dd3af49c3 (patch)
treef9c296dc28aaffbb9e2df29c87e86c4b46fef4f8 /src/logic/tpax_archive_enqueue.c
parentb8874b3e640e74ff287b64e969ce74aece65de10 (diff)
downloadtpax-37f51391c8888c7f84e27ec6995fda5dd3af49c3.tar.bz2
tpax-37f51391c8888c7f84e27ec6995fda5dd3af49c3.tar.xz
driver: implemented and integrated the -H (follow symlink args) cmdline option.
Diffstat (limited to 'src/logic/tpax_archive_enqueue.c')
-rw-r--r--src/logic/tpax_archive_enqueue.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/src/logic/tpax_archive_enqueue.c b/src/logic/tpax_archive_enqueue.c
index 222b0ad..b81661b 100644
--- a/src/logic/tpax_archive_enqueue.c
+++ b/src/logic/tpax_archive_enqueue.c
@@ -400,6 +400,7 @@ int tpax_archive_enqueue(
const struct tpax_unit_ctx * uctx)
{
int fdat;
+ int fdlnk;
uintptr_t addr;
const char * name;
const char * mark;
@@ -409,11 +410,15 @@ int tpax_archive_enqueue(
struct tpax_dirent * cdent;
struct tpax_dirent * cnext;
struct dirent * dirent;
+ struct dirent * lnkent;
+ struct stat lnkst;
char entbuf[PATH_MAX + sizeof(struct dirent)];
+ char lnkbuf[PATH_MAX + sizeof(struct dirent)];
/* init */
fdat = tpax_driver_fdcwd(dctx);
dirent = (struct dirent *)entbuf;
+ lnkent = (struct dirent *)lnkbuf;
prefix = 0;
/* split path to prefix + basename */
@@ -449,6 +454,39 @@ int tpax_archive_enqueue(
TPAX_NESTED_ERROR(dctx),
0);
+ /* follow command-line symlink arguments as needed */
+ fdlnk = (uctx->link[0] && (dctx->cctx->drvflags & TPAX_DRIVER_PAX_SYMLINK_ARGS))
+ ? openat(fdat,uctx->link[0],O_RDONLY|O_CLOEXEC) : (-1);
+
+ if (fdlnk >= 0) {
+ if (fstat(fdlnk,&lnkst) <0) {
+ close(fdlnk);
+ return tpax_archive_enqueue_ret(
+ TPAX_SYSTEM_ERROR(dctx),
+ 0);
+ }
+
+ close(fdlnk);
+
+ if (tpax_dirent_init_from_uctx(&lnkst,uctx->link[0],lnkent) < 0)
+ return tpax_archive_enqueue_ret(
+ TPAX_CUSTOM_ERROR(
+ dctx,
+ TPAX_ERR_FLOW_ERROR),
+ 0);
+
+ cdent = tpax_get_driver_dirmark(dctx);
+ cdent->flags |= TPAX_ITEM_NAMEREF;
+
+ if (tpax_archive_add_queue_item(
+ dctx,lnkent,cdent,0,1,
+ TPAX_ITEM_EXPLICIT|TPAX_ITEM_SYMLINK,
+ fdat,&fkeep) < 0)
+ return tpax_archive_enqueue_ret(
+ TPAX_NESTED_ERROR(dctx),
+ 0);
+ }
+
/* queue directory child items */
dentbuf = tpax_get_driver_dirents(dctx);
cdent = tpax_get_driver_dirmark(dctx);