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authorEric Andersen <andersen@codepoet.org>2001-08-06 22:51:31 +0000
committerEric Andersen <andersen@codepoet.org>2001-08-06 22:51:31 +0000
commitc4257d720039474be6804b20c4d133a65aa1d265 (patch)
tree73ec65725ad2ca301cbacb2979e87c045f6ef363
parentbd61f74bf3cb8f0ff7906db1c9ff745925af8980 (diff)
Try search for the shared lib interpreter. Eliminate all double "//"s
from the output -Erik
-rw-r--r--ldso/util/ldd.c47
1 files changed, 40 insertions, 7 deletions
diff --git a/ldso/util/ldd.c b/ldso/util/ldd.c
index 57ed796ee..fd0ff54b3 100644
--- a/ldso/util/ldd.c
+++ b/ldso/util/ldd.c
@@ -45,6 +45,7 @@ struct library {
struct library *next;
};
struct library *lib_list = NULL;
+char not_found[] = "not found";
@@ -113,6 +114,12 @@ static void search_for_named_library(char *name, char *result, const char *path_
fprintf(stderr, "Out of memory!\n");
exit(EXIT_FAILURE);
}
+ /* Eliminate all double //s */
+ path_n=path;
+ while((path_n=strstr(path_n, "//"))) {
+ i = strlen(path_n);
+ memmove(path_n, path_n+1, i-1);
+ }
/* Replace colons with zeros in path_parsed and count them */
for(i=strlen(path); i > 0; i--) {
@@ -144,10 +151,6 @@ void locate_library_file(Elf32_Ehdr* ehdr, Elf32_Dyn* dynamic, char *strtab, int
char *path;
struct stat filestat;
-
-
- lib->path = "not found";
-
/* If this is a fully resolved name, our job is easy */
if (stat (lib->name, &filestat) == 0) {
lib->path = lib->name;
@@ -196,8 +199,8 @@ void locate_library_file(Elf32_Ehdr* ehdr, Elf32_Dyn* dynamic, char *strtab, int
/* FIXME -- add code to check the Cache here */
/* Lastly, search the standard list of paths for the library */
- path = UCLIBC_PREFIX "/usr/lib:"
- UCLIBC_PREFIX "/lib:"
+ path = UCLIBC_TARGET_PREFIX "/usr/lib:"
+ UCLIBC_TARGET_PREFIX "/lib:"
UCLIBC_DEVEL_PREFIX "/lib:"
UCLIBC_BUILD_DIR "/lib:"
"/usr/lib:"
@@ -207,6 +210,8 @@ void locate_library_file(Elf32_Ehdr* ehdr, Elf32_Dyn* dynamic, char *strtab, int
lib->path = buf;
} else {
free(buf);
+ printf("bad stuff\n");
+ lib->path = not_found;
}
}
@@ -231,6 +236,7 @@ static int add_library(Elf32_Ehdr* ehdr, Elf32_Dyn* dynamic, char *strtab, int i
newlib->name = malloc(strlen(s));
strcpy(newlib->name, s);
newlib->resolved = 0;
+ newlib->path = NULL;
newlib->next = NULL;
/* Now try and locate where this library might be living... */
@@ -264,7 +270,32 @@ static void find_elf_interpreter(Elf32_Ehdr* ehdr, Elf32_Dyn* dynamic, char *str
Elf32_Phdr *phdr;
phdr = elf_find_phdr_type(PT_INTERP, ehdr);
if (phdr) {
- add_library(ehdr, dynamic, strtab, is_setuid, (char*)ehdr + phdr->p_offset);
+ struct library *cur, *prev, *newlib=lib_list;
+ char *s = (char*)ehdr + phdr->p_offset;
+
+ for (cur = lib_list; cur; cur=cur->next) {
+ if(strcmp(cur->name, s)==0) {
+ /* Lib is already in the list */
+ return;
+ }
+ }
+ newlib = malloc(sizeof(struct library));
+ if (!newlib)
+ return;
+ newlib->name = malloc(strlen(s));
+ strcpy(newlib->name, s);
+ newlib->path = newlib->name;
+ newlib->resolved = 1;
+ newlib->next = NULL;
+
+ //printf("adding '%s' to '%s'\n", newlib->name, newlib->path);
+ if (!lib_list) {
+ lib_list = newlib;
+ } else {
+ for (cur = prev = lib_list; cur->next; prev=cur, cur=cur->next); /* nothing */
+ cur = newlib;
+ prev->next = cur;
+ }
}
}
@@ -279,6 +310,8 @@ int find_dependancies(char* filename)
Elf32_Shdr *dynsec = NULL;
Elf32_Dyn *dynamic = NULL;
+ if (filename == not_found)
+ return 0;
if (!filename) {
fprintf(stderr, "No filename specified.\n");