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| author | midipix <writeonce@midipix.org> | 2015-12-04 22:56:15 -0500 |
|---|---|---|
| committer | midipix <writeonce@midipix.org> | 2016-11-10 23:35:30 -0500 |
| commit | d7ed3e2faf8e3bc1aeb1e7fed27cd8a1ff4b2290 (patch) | |
| tree | 0fa55ad7eccd35b3f7cbb3194045d5bcc9f83032 /src/driver | |
| parent | c61328dfece5c7346aabd4bc0027a9eb8126dd08 (diff) | |
| download | perk-d7ed3e2faf8e3bc1aeb1e7fed27cd8a1ff4b2290.tar.bz2 perk-d7ed3e2faf8e3bc1aeb1e7fed27cd8a1ff4b2290.tar.xz | |
API redesign 5/10: pe_unit_ctx: protect members against direct modification.
Diffstat (limited to 'src/driver')
| -rw-r--r-- | src/driver/pe_unit_ctx.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/src/driver/pe_unit_ctx.c b/src/driver/pe_unit_ctx.c index b86719c..df5409b 100644 --- a/src/driver/pe_unit_ctx.c +++ b/src/driver/pe_unit_ctx.c @@ -1,10 +1,13 @@ #include <stdint.h> +#include <stddef.h> #include <stdlib.h> #include <string.h> #include <sys/mman.h> + #include <perk/perk.h> +#include "perk_impl.h" -static int pe_free_unit_ctx_impl(struct pe_unit_ctx * ctx, int status) +static int pe_free_unit_ctx_impl(struct pe_unit_ctx_impl * ctx, int status) { if (ctx) { pe_free_image_meta(ctx->meta); @@ -20,7 +23,7 @@ int pe_get_unit_ctx( const char * path, struct pe_unit_ctx ** pctx) { - struct pe_unit_ctx * ctx; + struct pe_unit_ctx_impl * ctx; int prot; if (!dctx || !(ctx = calloc(sizeof(*ctx),1))) @@ -39,14 +42,26 @@ int pe_get_unit_ctx( memcpy(&ctx->cctx,dctx->cctx, sizeof(ctx->cctx)); - ctx->path = path; + ctx->path = ctx->path; ctx->cctx.prot = prot; - *pctx = ctx; + ctx->uctx.path = &ctx->path; + ctx->uctx.map = &ctx->map; + ctx->uctx.meta = ctx->meta; + ctx->uctx.cctx = &ctx->cctx; + + *pctx = &ctx->uctx; return 0; } void pe_free_unit_ctx(struct pe_unit_ctx * ctx) { - pe_free_unit_ctx_impl(ctx,0); + struct pe_unit_ctx_impl * ictx; + uintptr_t addr; + + if (ctx) { + addr = (uintptr_t)ctx - offsetof(struct pe_unit_ctx_impl,uctx); + ictx = (struct pe_unit_ctx_impl *)addr; + pe_free_unit_ctx_impl(ictx,0); + } } |