diff options
author | Cyrille Bagard <nocbos@gmail.com> | 2023-01-29 19:16:37 (GMT) |
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committer | Cyrille Bagard <nocbos@gmail.com> | 2023-01-29 19:16:37 (GMT) |
commit | 8cbc874ef01f3d161d4ca253167d8f80e689c814 (patch) | |
tree | 2849e7f5af3915a94d8fb0b766f6b7c8ad1817e7 /src/analysis | |
parent | 0507bdb3b56083c8e8b011fc3d4c16fed2700340 (diff) |
Do not allocate memory for file mmap()'ed contents.
Diffstat (limited to 'src/analysis')
-rw-r--r-- | src/analysis/contents/file.c | 20 | ||||
-rw-r--r-- | src/analysis/contents/memory-int.h | 1 | ||||
-rw-r--r-- | src/analysis/contents/memory.c | 12 |
3 files changed, 25 insertions, 8 deletions
diff --git a/src/analysis/contents/file.c b/src/analysis/contents/file.c index 4f102d8..7497667 100644 --- a/src/analysis/contents/file.c +++ b/src/analysis/contents/file.c @@ -49,6 +49,7 @@ struct _GFileContent GMemoryContent parent; /* A laisser en premier */ char *filename; /* Fichier chargé en mémoire */ + int fd; /* Flux ouvert en lectureu */ }; @@ -136,6 +137,7 @@ static void g_file_content_class_init(GFileContentClass *klass) static void g_file_content_init(GFileContent *content) { content->filename = NULL; + content->fd = -1; } @@ -193,8 +195,19 @@ static void g_file_content_dispose(GFileContent *content) static void g_file_content_finalize(GFileContent *content) { + GMemoryContent *base; /* Structure parente */ + free(content->filename); + if (content->fd != -1) + { + base = G_MEMORY_CONTENT(content); + munmap(base->data, base->length); + + close(content->fd); + + } + G_OBJECT_CLASS(g_file_content_parent_class)->finalize(G_OBJECT(content)); } @@ -254,14 +267,9 @@ GBinContent *g_file_content_new(const char *filename) base = G_MEMORY_CONTENT(result); - base->data = malloc(info.st_size); - memcpy(base->data, content, info.st_size); - + base->data = content; base->length = info.st_size; - munmap(content, info.st_size); - close(fd); - return G_BIN_CONTENT(result); file_error: diff --git a/src/analysis/contents/memory-int.h b/src/analysis/contents/memory-int.h index 621e4a6..749e984 100644 --- a/src/analysis/contents/memory-int.h +++ b/src/analysis/contents/memory-int.h @@ -38,6 +38,7 @@ struct _GMemoryContent bin_t *data; /* Contenu binaire représenté */ phys_t length; /* Taille totale du contenu */ + bool allocated; /* Nature de la zone de données*/ char *full_desc; /* Description de l'ensemble */ char *desc; /* Description de l'ensemble */ diff --git a/src/analysis/contents/memory.c b/src/analysis/contents/memory.c index 9ddc4fa..f80a01a 100644 --- a/src/analysis/contents/memory.c +++ b/src/analysis/contents/memory.c @@ -196,6 +196,7 @@ static void g_memory_content_init(GMemoryContent *content) content->data = NULL; content->length = 0; + content->allocated = false; content->full_desc = strdup("In-memory content"); content->desc = strdup("In-memory content"); @@ -302,8 +303,11 @@ static void g_memory_content_dispose(GMemoryContent *content) static void g_memory_content_finalize(GMemoryContent *content) { - if (content->data != NULL) - free(content->data); + if (content->allocated) + { + if (content->data != NULL) + free(content->data); + } if (content->desc != NULL) free(content->desc); @@ -347,6 +351,7 @@ GBinContent *g_memory_content_new(const bin_t *data, phys_t size) result->data = allocated; result->length = size; + result->allocated = true; return G_BIN_CONTENT(result); @@ -929,6 +934,9 @@ static bool g_memory_content_load(GMemoryContent *content, GObjectStorage *stora { content->data = malloc(length); result = (content->data != NULL); + + content->allocated = true; + } if (result) |