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-rw-r--r--utils/ldd.c67
1 files changed, 31 insertions, 36 deletions
diff --git a/utils/ldd.c b/utils/ldd.c
index 9e9e08d36..e86610223 100644
--- a/utils/ldd.c
+++ b/utils/ldd.c
@@ -2,8 +2,7 @@
/*
* A small little ldd implementation for uClibc
*
- * Copyright (C) 2000 by Lineo, inc and Erik Andersen
- * Copyright (C) 2000-2002 Erik Andersen <andersee@debian.org>
+ * Copyright (C) 2000-2004 Erik Andersen <andersee@debian.org>
*
* Several functions in this file (specifically, elf_find_section_type(),
* elf_find_phdr_type(), and elf_find_dynamic(), were stolen from elflib.c from
@@ -70,7 +69,7 @@
#define ELFCLASSM ELFCLASS32
#endif
-#if defined(__mc68000__)
+#if defined(__mc68000__)
#define MATCH_MACHINE(x) (x == EM_68K)
#define ELFCLASSM ELFCLASS32
#endif
@@ -137,8 +136,6 @@ inline uint32_t byteswap32_to_host(uint32_t value)
}
}
-
-
Elf32_Shdr * elf_find_section_type( int key, Elf32_Ehdr *ehdr)
{
int j;
@@ -164,8 +161,8 @@ Elf32_Phdr * elf_find_phdr_type( int type, Elf32_Ehdr *ehdr)
return NULL;
}
-/* Returns value if return_val==1, ptr otherwise */
-void * elf_find_dynamic(int const key, Elf32_Dyn *dynp,
+/* Returns value if return_val==1, ptr otherwise */
+void * elf_find_dynamic(int const key, Elf32_Dyn *dynp,
Elf32_Ehdr *ehdr, int return_val)
{
Elf32_Phdr *pt_text = elf_find_phdr_type(PT_LOAD, ehdr);
@@ -194,12 +191,12 @@ static char * elf_find_rpath(Elf32_Ehdr* ehdr, Elf32_Dyn* dynamic)
}
return NULL;
}
-
+
int check_elf_header(Elf32_Ehdr *const ehdr)
{
- if (! ehdr || strncmp((void *)ehdr, ELFMAG, SELFMAG) != 0 ||
+ if (! ehdr || strncmp((void *)ehdr, ELFMAG, SELFMAG) != 0 ||
ehdr->e_ident[EI_CLASS] != ELFCLASS32 ||
- ehdr->e_ident[EI_VERSION] != EV_CURRENT)
+ ehdr->e_ident[EI_VERSION] != EV_CURRENT)
{
return 1;
}
@@ -219,7 +216,7 @@ int check_elf_header(Elf32_Ehdr *const ehdr)
#else
#error Unknown host byte order!
#endif
-
+
/* Be vary lazy, and only byteswap the stuff we use */
if (byteswap==1) {
ehdr->e_type=bswap_16(ehdr->e_type);
@@ -232,7 +229,7 @@ int check_elf_header(Elf32_Ehdr *const ehdr)
return 0;
}
-/* This function's behavior must exactly match that
+/* This function's behavior must exactly match that
* in uClibc/ldso/ldso/readelflib1.c */
static void search_for_named_library(char *name, char *result, const char *path_list)
{
@@ -263,8 +260,8 @@ static void search_for_named_library(char *name, char *result, const char *path_
}
path_n = path;
for (i = 0; i < count; i++) {
- strcpy(result, path_n);
- strcat(result, "/");
+ strcpy(result, path_n);
+ strcat(result, "/");
strcat(result, name);
if (stat (result, &filestat) == 0 && filestat.st_mode & S_IRUSR) {
free(path);
@@ -281,7 +278,7 @@ void locate_library_file(Elf32_Ehdr* ehdr, Elf32_Dyn* dynamic, int is_suid, stru
char *buf;
char *path;
struct stat filestat;
-
+
/* If this is a fully resolved name, our job is easy */
if (stat (lib->name, &filestat) == 0) {
lib->path = lib->name;
@@ -324,11 +321,11 @@ void locate_library_file(Elf32_Ehdr* ehdr, Elf32_Dyn* dynamic, int is_suid, stru
}
#ifdef USE_CACHE
- /* FIXME -- add code to check the Cache here */
+ /* FIXME -- add code to check the Cache here */
#endif
- /* Next look for libraries wherever the shared library
+ /* Next look for libraries wherever the shared library
* loader was installed -- this is usually where we
* should find things... */
if (interp_dir) {
@@ -342,14 +339,14 @@ void locate_library_file(Elf32_Ehdr* ehdr, Elf32_Dyn* dynamic, int is_suid, stru
/* Lastly, search the standard list of paths for the library.
This list must exactly match the list in uClibc/ldso/ldso/readelflib1.c */
path = UCLIBC_RUNTIME_PREFIX "usr/X11R6/lib:"
- UCLIBC_RUNTIME_PREFIX "usr/lib:"
- UCLIBC_RUNTIME_PREFIX "lib:"
- "/usr/lib:"
- "/lib";
+ UCLIBC_RUNTIME_PREFIX "usr/lib:"
+ UCLIBC_RUNTIME_PREFIX "lib:"
+ "/usr/lib:"
+ "/lib";
search_for_named_library(lib->name, buf, path);
if (*buf != '\0') {
lib->path = buf;
- } else {
+ } else {
free(buf);
lib->path = not_found;
}
@@ -363,7 +360,7 @@ static int add_library(Elf32_Ehdr* ehdr, Elf32_Dyn* dynamic, int is_setuid, char
if (!s || !strlen(s))
return 1;
- tmp = s;
+ tmp = s;
while (*tmp) {
if (*tmp == '/')
s = tmp + 1;
@@ -380,7 +377,7 @@ static int add_library(Elf32_Ehdr* ehdr, Elf32_Dyn* dynamic, int is_setuid, char
for (cur = lib_list; cur; cur=cur->next) {
/* Check if this library is already in the list */
- tmp1 = tmp2 = cur->name;
+ tmp1 = tmp2 = cur->name;
while (*tmp1) {
if (*tmp1 == '/')
tmp2 = tmp1 + 1;
@@ -415,7 +412,7 @@ static int add_library(Elf32_Ehdr* ehdr, Elf32_Dyn* dynamic, int is_setuid, char
return 0;
}
-static void find_needed_libraries(Elf32_Ehdr* ehdr,
+static void find_needed_libraries(Elf32_Ehdr* ehdr,
Elf32_Dyn* dynamic, int is_setuid)
{
Elf32_Dyn *dyns;
@@ -424,12 +421,12 @@ static void find_needed_libraries(Elf32_Ehdr* ehdr,
if (DT_NEEDED == byteswap32_to_host(dyns->d_tag)) {
char *strtab;
strtab = (char *)elf_find_dynamic(DT_STRTAB, dynamic, ehdr, 0);
- add_library(ehdr, dynamic, is_setuid,
+ add_library(ehdr, dynamic, is_setuid,
(char*)strtab + byteswap32_to_host(dyns->d_un.d_val));
}
}
}
-
+
static struct library * find_elf_interpreter(Elf32_Ehdr* ehdr)
{
Elf32_Phdr *phdr;
@@ -440,7 +437,7 @@ static struct library * find_elf_interpreter(Elf32_Ehdr* ehdr)
if (phdr) {
struct library *cur, *newlib=NULL;
char *s = (char*)ehdr + byteswap32_to_host(phdr->p_offset);
-
+
char *tmp, *tmp1;
interp = strdup(s);
interp_dir = strdup(s);
@@ -476,7 +473,7 @@ static struct library * find_elf_interpreter(Elf32_Ehdr* ehdr)
newlib->path = newlib->name;
newlib->resolved = 1;
newlib->next = NULL;
-
+
#if 0
//printf("find_elf_interpreter is adding '%s' to '%s'\n", newlib->name, newlib->path);
if (!lib_list) {
@@ -552,11 +549,11 @@ foo:
interpreter_already_found=0;
interp = find_elf_interpreter(ehdr);
-
+
#ifdef __LDSO_LDD_SUPPORT
- if (interp && ehdr->e_type == ET_EXEC && ehdr->e_ident[EI_CLASS] == ELFCLASSM &&
+ if (interp && ehdr->e_type == ET_EXEC && ehdr->e_ident[EI_CLASS] == ELFCLASSM &&
ehdr->e_ident[EI_DATA] == ELFDATAM
- && ehdr->e_ident[EI_VERSION] == EV_CURRENT && MATCH_MACHINE(ehdr->e_machine))
+ && ehdr->e_ident[EI_VERSION] == EV_CURRENT && MATCH_MACHINE(ehdr->e_machine))
{
struct stat statbuf;
if (stat(interp->path, &statbuf) == 0 && S_ISREG(statbuf.st_mode)) {
@@ -570,7 +567,7 @@ foo:
};
if ((pid = fork()) == 0) {
- /* Cool, it looks like we should be able to actually
+ /* Cool, it looks like we should be able to actually
* run this puppy. Do so now... */
execle(filename, filename, NULL, environment);
_exit(0xdead);
@@ -594,12 +591,10 @@ foo:
dynamic = (Elf32_Dyn*)(byteswap32_to_host(dynsec->sh_offset) + (intptr_t)ehdr);
find_needed_libraries(ehdr, dynamic, is_suid);
}
-
+
return 0;
}
-
-
int main( int argc, char** argv)
{
int multi=0;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-12 09:18:27 +0000