From: Michael Tremer <michael.tremer@ipfire.org>
Date: Fri, 3 Jan 2025 12:08:34 +0000 (+0000)
Subject: ELF: Add a function to fetch the SONAME
X-Git-Tag: 0.9.30~558
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=bc5320e9fe2b18c958d54f63a45da1ab1e4cbbdb;p=pakfire.git

ELF: Add a function to fetch the SONAME

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/pakfire/elf.c b/src/pakfire/elf.c
index c9c1dadd7..8f4670815 100644
--- a/src/pakfire/elf.c
+++ b/src/pakfire/elf.c
@@ -58,6 +58,9 @@ struct pakfire_elf {
 	// Interpreter
 	const char* interpreter;
 
+	// SONAME
+	const char* soname;
+
 	// GNU Build ID
 	char* build_id;
 
@@ -460,6 +463,31 @@ const char* pakfire_elf_interpreter(struct pakfire_elf* self) {
 	return self->interpreter;
 }
 
+static int pakfire_elf_fetch_soname(struct pakfire_elf* self,
+		const GElf_Shdr* shdr, const GElf_Dyn* dyn, void* data) {
+	switch (dyn->d_tag) {
+		case DT_SONAME:
+			self->soname = elf_strptr(self->elf, shdr->sh_link, dyn->d_un.d_val);
+
+			return 1;
+	}
+
+	return 0;
+}
+
+const char* pakfire_elf_soname(struct pakfire_elf* self) {
+	int r;
+
+	// Fetch the SONAME if not available
+	if (!self->soname) {
+		r = pakfire_elf_dyn_walk(self, pakfire_elf_fetch_soname, NULL);
+		if (r < 0)
+			return NULL;
+	}
+
+	return self->soname;
+}
+
 int pakfire_elf_is_pie(struct pakfire_elf* self) {
 	switch (pakfire_elf_type(self)) {
 		// Shared Object files are good
diff --git a/src/pakfire/elf.h b/src/pakfire/elf.h
index 450e7c481..d6f3ef99e 100644
--- a/src/pakfire/elf.h
+++ b/src/pakfire/elf.h
@@ -45,6 +45,7 @@ int pakfire_elf_endianess(struct pakfire_elf* self);
 const char* pakfire_elf_build_id(struct pakfire_elf* self);
 const char* pakfire_elf_debuglink(struct pakfire_elf* self);
 const char* pakfire_elf_interpreter(struct pakfire_elf* elf);
+const char* pakfire_elf_soname(struct pakfire_elf* self);
 
 int pakfire_elf_is_pie(struct pakfire_elf* self);
 int pakfire_elf_has_ssp(struct pakfire_elf* self);