diff options
Diffstat (limited to 'src/driver')
| -rw-r--r-- | src/driver/tpax_unit_ctx.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/src/driver/tpax_unit_ctx.c b/src/driver/tpax_unit_ctx.c index a6a91b6..a94bf05 100644 --- a/src/driver/tpax_unit_ctx.c +++ b/src/driver/tpax_unit_ctx.c @@ -8,11 +8,13 @@ #include <stddef.h> #include <stdlib.h> #include <string.h> -#include <sys/mman.h> +#include <fcntl.h> +#include <sys/stat.h> #include <tpax/tpax.h> #include "tpax_driver_impl.h" #include "tpax_errinfo_impl.h" +#include "tpax_readlink_impl.h" static int tpax_free_unit_ctx_impl(struct tpax_unit_ctx_impl * ctx, int ret) { @@ -28,6 +30,7 @@ int tpax_get_unit_ctx( const char * path, struct tpax_unit_ctx ** pctx) { + int ret; struct tpax_unit_ctx_impl * ctx; if (!dctx) @@ -40,8 +43,32 @@ int tpax_get_unit_ctx( tpax_driver_set_ectx( dctx,0,path); + if (dctx->cctx->drvflags & TPAX_DRIVER_EXEC_MODE_WRITE_COPY) { + ret = fstatat( + tpax_driver_fdcwd(dctx),path, + &ctx->st,AT_SYMLINK_NOFOLLOW); + + if (ret < 0) { + free(ctx); + return TPAX_SYSTEM_ERROR(dctx); + } + } + + if (S_ISLNK(ctx->st.st_mode)) { + if (tpax_readlink( + path,ctx->linkbuf, + sizeof(ctx->linkbuf)) < 0) { + free(ctx); + return TPAX_SYSTEM_ERROR(dctx); + } + } + ctx->path = path; + ctx->link = ctx->linkbuf; + ctx->uctx.path = &ctx->path; + ctx->uctx.link = &ctx->link; + ctx->uctx.st = &ctx->st; *pctx = &ctx->uctx; |