#define BUFFER_SIZE 4096
-struct exec
-{
- unsigned long a_info; /* Use macros N_MAGIC, etc for access */
- unsigned a_text; /* length of text, in bytes */
- unsigned a_data; /* length of data, in bytes */
- unsigned a_bss; /* length of uninitialized data area for file, in bytes */
- unsigned a_syms; /* length of symbol table data in file, in bytes */
- unsigned a_entry; /* start address */
- unsigned a_trsize; /* length of relocation info for text, in bytes */
- unsigned a_drsize; /* length of relocation info for data, in bytes */
+struct exec {
+ unsigned long a_info; /* Use macros N_MAGIC, etc for access */
+ unsigned a_text; /* length of text, in bytes */
+ unsigned a_data; /* length of data, in bytes */
+ unsigned a_bss; /* length of uninitialized data area for file, in bytes */
+ unsigned a_syms; /* length of symbol table data in file, in bytes */
+ unsigned a_entry; /* start address */
+ unsigned a_trsize; /* length of relocation info for text, in bytes */
+ unsigned a_drsize; /* length of relocation info for data, in bytes */
};
#if !defined (N_MAGIC)
#define NMAGIC 0410
/* Code indicating demand-paged executable. */
#define ZMAGIC 0413
-/* This indicates a demand-paged executable with the header in the text.
+/* This indicates a demand-paged executable with the header in the text.
The first page is unmapped to help trap NULL pointer references */
#define QMAGIC 0314
/* Code indicating core file. */
char *chroot_dir = NULL;
int byteswap = 0;
-struct needed_tab
-{
- char *soname;
- int type;
+struct needed_tab {
+ char *soname;
+ int type;
};
struct needed_tab needed_tab[] = {
- { "libc.so.0", LIB_ELF_LIBC0 },
- { "libm.so.0", LIB_ELF_LIBC0 },
- { "libdl.so.0", LIB_ELF_LIBC0 },
- { "libc.so.5", LIB_ELF_LIBC5 },
- { "libm.so.5", LIB_ELF_LIBC5 },
- { "libdl.so.1", LIB_ELF_LIBC5 },
- { "libc.so.6", LIB_ELF_LIBC6 },
- { "libm.so.6", LIB_ELF_LIBC6 },
- { "libdl.so.2", LIB_ELF_LIBC6 },
- { NULL, LIB_ELF }
+ {"libc.so.0", LIB_ELF_LIBC0},
+ {"libm.so.0", LIB_ELF_LIBC0},
+ {"libdl.so.0", LIB_ELF_LIBC0},
+ {"libc.so.5", LIB_ELF_LIBC5},
+ {"libm.so.5", LIB_ELF_LIBC5},
+ {"libdl.so.1", LIB_ELF_LIBC5},
+ {"libc.so.6", LIB_ELF_LIBC6},
+ {"libm.so.6", LIB_ELF_LIBC6},
+ {"libdl.so.2", LIB_ELF_LIBC6},
+ {NULL, LIB_ELF}
};
-extern char *chroot_realpath(const char *chroot, const char *path, char resolved_path[]);
-
+extern char *chroot_realpath(const char *chroot, const char *path,
+ char resolved_path[]);
/* These two are used internally -- you shouldn't need to use them */
static void verror_msg(const char *s, va_list p)
static void *xmalloc(size_t size)
{
- void *ptr;
- if ((ptr = malloc(size)) == NULL)
- err(EXIT_FATAL,"out of memory");
- return ptr;
+ void *ptr;
+ if ((ptr = malloc(size)) == NULL)
+ err(EXIT_FATAL, "out of memory");
+ return ptr;
}
static char *xstrdup(const char *str)
{
- char *ptr;
- if ((ptr = strdup(str)) == NULL)
- err(EXIT_FATAL,"out of memory");
- return ptr;
+ char *ptr;
+ if ((ptr = strdup(str)) == NULL)
+ err(EXIT_FATAL, "out of memory");
+ return ptr;
}
-
#undef __ELF_NATIVE_CLASS
#undef readsonameXX
#define readsonameXX readsoname32
#define readsonameXX readsoname64
#define __ELF_NATIVE_CLASS 64
#include "readsoname2.c"
-
-char *readsoname(char *name, FILE *infile, int expected_type,
+char *readsoname(char *name, FILE *infile, int expected_type,
int *type, int elfclass)
{
- char *res;
+ char *res;
- if (elfclass == ELFCLASS32)
- res = readsoname32(name, infile, expected_type, type);
- else
- {
- res = readsoname64(name, infile, expected_type, type);
+ if (elfclass == ELFCLASS32)
+ res = readsoname32(name, infile, expected_type, type);
+ else {
+ res = readsoname64(name, infile, expected_type, type);
#if 0
- *type |= LIB_ELF64;
+ /* relies on multilib support which we dont have ... */
+ *type |= LIB_ELF64;
#endif
- }
+ }
- return res;
+ return res;
}
-
-
/* If shared library, return a malloced copy of the soname and set the
- type, else return NULL.
-
- expected_type should be either LIB_ANY or one of the following:-
- LIB_DLL
- LIB_ELF
- LIB_ELF_LIBC5
- LIB_ELF_LIBC6
-
- If the lib is ELF and we can not deduce the type the type will
- be set based on expected_type.
-
- If the expected, actual/deduced types missmatch we display a warning
- and use the actual/deduced type.
-*/
+ * type, else return NULL.
+ *
+ * expected_type should be either LIB_ANY or one of the following:-
+ * LIB_DLL
+ * LIB_ELF
+ * LIB_ELF_LIBC5
+ * LIB_ELF_LIBC6
+ *
+ * If the lib is ELF and we can not deduce the type the type will
+ * be set based on expected_type.
+ *
+ * If the expected, actual/deduced types missmatch we display a warning
+ * and use the actual/deduced type.
+ */
char *is_shlib(const char *dir, const char *name, int *type,
- int *islink, int expected_type)
+ int *islink, int expected_type)
{
- char *good = NULL;
- char *cp, *cp2;
- FILE *file;
- struct exec exec;
- ElfW(Ehdr) *elf_hdr;
- struct stat statbuf;
- char buff[BUFFER_SIZE];
- char real[BUFFER_SIZE];
- static int byteswapflag = -1; /* start with byte-order unknown */
-
- /* see if name is of the form *.so* */
- if (name[strlen(name)-1] != '~' && (cp = strstr(name, ".so")))
- {
- /* find the start of the Vminor part, if any */
- if (cp[3] == '.' && (cp2 = strchr(cp + 4, '.')))
- cp = cp2;
- else
- cp = cp + strlen(cp);
-
- /* construct the full path name */
- sprintf(buff, "%s%s%s", dir, (*dir && strcmp(dir, "/")) ?
- "/" : "", name);
-
- /* get real path in case of chroot */
- if (!chroot_realpath(chroot_dir, buff, real))
- warn("can't resolve %s in chroot %s", buff, chroot_dir);
-
- /* first, make sure it's a regular file */
- if (lstat(real, &statbuf))
- warn("skipping %s", buff);
- else if (!S_ISREG(statbuf.st_mode) && !S_ISLNK(statbuf.st_mode))
- warnx("%s is not a regular file or symlink, skipping", buff);
- else
- {
- /* is it a regular file or a symlink */
- *islink = S_ISLNK(statbuf.st_mode);
-
- /* then try opening it */
- if (!(file = fopen(real, "rb")))
- warn("skipping %s", buff);
- else
- {
- /* now make sure it's a shared library */
- if (fread(&exec, sizeof exec, 1, file) < 1)
- warnx("can't read header from %s, skipping", buff);
- else if (N_MAGIC(exec) != ZMAGIC && N_MAGIC(exec) != QMAGIC &&
- N_MAGIC_SWAP(exec) != ZMAGIC && N_MAGIC_SWAP(exec) != QMAGIC)
- {
- elf_hdr = (ElfW(Ehdr) *) &exec;
- if (elf_hdr->e_ident[0] != 0x7f ||
- strncmp(&elf_hdr->e_ident[1], "ELF",3) != 0)
- {
- /* silently ignore linker scripts */
- if (strncmp((char *)&exec, "/* GNU ld", 9) != 0)
- warnx("%s is not a shared library, skipping", buff);
- }
- else
- {
- /* always call readsoname to update type */
- if(expected_type == LIB_DLL) {
- warnx("%s is not an a.out library, it's ELF!", buff);
- expected_type=LIB_ANY;
- }
- *type = LIB_ELF;
- good = readsoname(buff, file, expected_type, type,
- elf_hdr->e_ident[EI_CLASS]);
- if (byteswapflag == -1)
- /* byte-order detected */
- byteswapflag = byteswap;
- if (good == NULL || *islink)
- {
- if (good != NULL)
- free(good);
- good = xstrdup(name);
- }
- else
- {
- /* if the soname does not match the filename,
- issue a warning, but only in debug mode. */
- int len = strlen(good);
- if (debug && (strncmp(good, name, len) != 0 ||
- (name[len] != '\0' && name[len] != '.')))
- warnx("%s has inconsistent soname (%s)", buff, good);
- }
- }
- }
+ char *good = NULL;
+ char *cp, *cp2;
+ FILE *file;
+ struct exec exec;
+ ElfW(Ehdr) *elf_hdr;
+ struct stat statbuf;
+ char buff[BUFFER_SIZE];
+ char real[BUFFER_SIZE];
+ static int byteswapflag = -1; /* start with byte-order unknown */
+
+ /* see if name is of the form *.so* */
+ if (name[strlen(name) - 1] != '~' && (cp = strstr(name, ".so"))) {
+ /* find the start of the Vminor part, if any */
+ if (cp[3] == '.' && (cp2 = strchr(cp + 4, '.')))
+ cp = cp2;
else
- {
- /* Determine byte-order */
- byteswap = (N_MAGIC(exec) == ZMAGIC || N_MAGIC(exec) == QMAGIC) ? 0 : 1;
- if (byteswapflag == -1)
- /* byte-order detected */
- byteswapflag = byteswap;
-
- if (*islink)
- good = xstrdup(name);
- else
- {
- good = xmalloc(cp - name + 1);
- strncpy(good, name, cp - name);
- good[cp - name] = '\0';
- }
- if(expected_type != LIB_ANY && expected_type != LIB_DLL)
- {
- warnx("%s is not an ELF library, its an a.out DLL!", buff);
- expected_type=LIB_ANY;
- }
-
- *type = LIB_DLL;
- }
- fclose(file);
-
- if (byteswapflag >= 0 && byteswap != byteswapflag)
- {
- byteswapflag = -2;
- warnx("mixed byte-order detected, using host byte-order...");
+ cp = cp + strlen(cp);
+
+ /* construct the full path name */
+ sprintf(buff, "%s%s%s", dir, (*dir && strcmp(dir, "/")) ? "/" : "", name);
+
+ /* get real path in case of chroot */
+ if (!chroot_realpath(chroot_dir, buff, real))
+ warn("can't resolve %s in chroot %s", buff, chroot_dir);
+
+ /* first, make sure it's a regular file */
+ if (lstat(real, &statbuf))
+ warn("skipping %s", buff);
+ else if (!S_ISREG(statbuf.st_mode) && !S_ISLNK(statbuf.st_mode))
+ warnx("%s is not a regular file or symlink, skipping", buff);
+ else {
+ /* is it a regular file or a symlink */
+ *islink = S_ISLNK(statbuf.st_mode);
+
+ /* then try opening it */
+ if (!(file = fopen(real, "rb")))
+ warn("skipping %s", buff);
+ else {
+ /* now make sure it's a shared library */
+ if (fread(&exec, sizeof exec, 1, file) < 1)
+ warnx("can't read header from %s, skipping", buff);
+ else if (N_MAGIC(exec) != ZMAGIC
+ && N_MAGIC(exec) != QMAGIC
+ && N_MAGIC_SWAP(exec) != ZMAGIC
+ && N_MAGIC_SWAP(exec) != QMAGIC) {
+ elf_hdr = (ElfW(Ehdr) *) & exec;
+ if (elf_hdr->e_ident[0] != 0x7f ||
+ strncmp(elf_hdr->e_ident+1, "ELF", 3) != 0)
+ {
+ /* silently ignore linker scripts */
+ if (strncmp((char *)&exec, "/* GNU ld", 9) != 0)
+ warnx("%s is not a shared library, skipping", buff);
+ } else {
+ /* always call readsoname to update type */
+ if (expected_type == LIB_DLL) {
+ warnx("%s is not an a.out library, it's ELF!", buff);
+ expected_type = LIB_ANY;
+ }
+ *type = LIB_ELF;
+ good = readsoname(buff, file, expected_type, type,
+ elf_hdr->e_ident[EI_CLASS]);
+ if (byteswapflag == -1)
+ /* byte-order detected */
+ byteswapflag = byteswap;
+ if (good == NULL || *islink) {
+ if (good != NULL)
+ free(good);
+ good = xstrdup(name);
+ } else {
+ /* if the soname does not match the filename,
+ issue a warning, but only in debug mode. */
+ int len = strlen(good);
+ if (debug && (strncmp(good, name, len) != 0
+ || (name[len] != '\0' && name[len] != '.')))
+ warnx("%s has inconsistent soname (%s)", buff, good);
+ }
+ }
+ } else {
+ /* Determine byte-order */
+ byteswap = (N_MAGIC(exec) == ZMAGIC || N_MAGIC(exec) == QMAGIC) ? 0 : 1;
+ if (byteswapflag == -1)
+ /* byte-order detected */
+ byteswapflag = byteswap;
+
+ if (*islink)
+ good = xstrdup(name);
+ else {
+ good = xmalloc(cp - name + 1);
+ strncpy(good, name, cp - name);
+ good[cp - name] = '\0';
+ }
+ if (expected_type != LIB_ANY && expected_type != LIB_DLL) {
+ warnx("%s is not an ELF library, its an a.out DLL!", buff);
+ expected_type = LIB_ANY;
+ }
+
+ *type = LIB_DLL;
+ }
+ fclose(file);
+
+ if (byteswapflag >= 0 && byteswap != byteswapflag) {
+ byteswapflag = -2;
+ warnx("mixed byte-order detected, using host byte-order...");
+ }
+ if (byteswapflag == -2)
+ byteswap = 0;
+ }
}
- if (byteswapflag == -2)
- byteswap = 0;
- }
}
- }
- return good;
+ return good;
}
/* update the symlink to new library */
void link_shlib(const char *dir, const char *file, const char *so)
{
- int change = 1;
- char libname[BUFFER_SIZE];
- char linkname[BUFFER_SIZE];
- char reallibname[BUFFER_SIZE];
- char reallinkname[BUFFER_SIZE];
- struct stat libstat;
- struct stat linkstat;
-
- /* construct the full path names */
- sprintf(libname, "%s/%s", dir, file);
- sprintf(linkname, "%s/%s", dir, so);
- if (!chroot_realpath(chroot_dir, libname, reallibname))
- warn("can't resolve %s in chroot %s", libname, chroot_dir);
- if (!chroot_realpath(chroot_dir, linkname, reallinkname))
- warn("can't resolve %s in chroot %s", linkname, chroot_dir);
-
- /* see if a link already exists */
- if (!stat(reallinkname, &linkstat))
- {
- /* now see if it's the one we want */
- if (stat(reallibname, &libstat))
- warn("can't stat %s", libname);
- else if (libstat.st_dev == linkstat.st_dev &&
- libstat.st_ino == linkstat.st_ino)
- change = 0;
- }
-
- /* then update the link, if required */
- if (change > 0 && !nolinks)
- {
- if (!lstat(reallinkname, &linkstat))
- {
- if (!S_ISLNK(linkstat.st_mode))
- {
- warnx("%s is not a symlink", linkname);
- change = -1;
- }
- else if (remove(reallinkname))
- {
- warn("can't unlink %s", linkname);
- change = -1;
- }
+ int change = 1;
+ char libname[BUFFER_SIZE];
+ char linkname[BUFFER_SIZE];
+ char reallibname[BUFFER_SIZE];
+ char reallinkname[BUFFER_SIZE];
+ struct stat libstat;
+ struct stat linkstat;
+
+ /* construct the full path names */
+ sprintf(libname, "%s/%s", dir, file);
+ sprintf(linkname, "%s/%s", dir, so);
+ if (!chroot_realpath(chroot_dir, libname, reallibname))
+ warn("can't resolve %s in chroot %s", libname, chroot_dir);
+ if (!chroot_realpath(chroot_dir, linkname, reallinkname))
+ warn("can't resolve %s in chroot %s", linkname, chroot_dir);
+
+ /* see if a link already exists */
+ if (!stat(reallinkname, &linkstat)) {
+ /* now see if it's the one we want */
+ if (stat(reallibname, &libstat))
+ warn("can't stat %s", libname);
+ else if (libstat.st_dev == linkstat.st_dev &&
+ libstat.st_ino == linkstat.st_ino)
+ change = 0;
}
- if (change > 0)
- {
- if (symlink(file, reallinkname))
- {
- warn("can't link %s to %s", linkname, file);
- change = -1;
- }
+
+ /* then update the link, if required */
+ if (change > 0 && !nolinks) {
+ if (!lstat(reallinkname, &linkstat)) {
+ if (!S_ISLNK(linkstat.st_mode)) {
+ warnx("%s is not a symlink", linkname);
+ change = -1;
+ } else if (remove(reallinkname)) {
+ warn("can't unlink %s", linkname);
+ change = -1;
+ }
+ }
+ if (change > 0) {
+ if (symlink(file, reallinkname)) {
+ warn("can't link %s to %s", linkname, file);
+ change = -1;
+ }
+ }
}
- }
- /* some people like to know what we're doing */
- if (verbose > 0)
- printf("\t%s => %s%s\n", so, file,
- change < 0 ? " (SKIPPED)" :
- (change > 0 ? " (changed)" : ""));
+ /* some people like to know what we're doing */
+ if (verbose > 0)
+ printf("\t%s => %s%s\n", so, file,
+ change < 0 ? " (SKIPPED)" :
+ (change > 0 ? " (changed)" : ""));
- return;
+ return;
}
/* figure out which library is greater */
int libcmp(char *p1, char *p2)
{
- while (*p1)
- {
- if (isdigit(*p1) && isdigit(*p2))
- {
- /* must compare this numerically */
- int v1, v2;
- v1 = strtoul(p1, &p1, 10);
- v2 = strtoul(p2, &p2, 10);
- if (v1 != v2)
- return v1 - v2;
+ while (*p1) {
+ if (isdigit(*p1) && isdigit(*p2)) {
+ /* must compare this numerically */
+ int v1, v2;
+ v1 = strtoul(p1, &p1, 10);
+ v2 = strtoul(p2, &p2, 10);
+ if (v1 != v2)
+ return v1 - v2;
+ } else if (isdigit(*p1) && !isdigit(*p2))
+ return 1;
+ else if (!isdigit(*p1) && isdigit(*p2))
+ return -1;
+ else if (*p1 != *p2)
+ return *p1 - *p2;
+ else
+ p1++, p2++;
}
- else if (isdigit(*p1) && !isdigit(*p2))
- return 1;
- else if (!isdigit(*p1) && isdigit(*p2))
- return -1;
- else if (*p1 != *p2)
- return *p1 - *p2;
- else
- p1++, p2++;
- }
-
- return *p1 - *p2;
+
+ return *p1 - *p2;
}
-struct lib
-{
- char *so; /* soname of a library */
- char *name; /* name of a library */
- int libtype; /* type of a library */
- int islink; /* is it a symlink */
- struct lib *next; /* next library in list */
+struct lib {
+ char *so; /* soname of a library */
+ char *name; /* name of a library */
+ int libtype; /* type of a library */
+ int islink; /* is it a symlink */
+ struct lib *next; /* next library in list */
};
/* update all shared library links in a directory */
void scan_dir(const char *rawname)
{
- DIR *dir;
- const char *name;
- struct dirent *ent;
- char *so, *path, *path_n;
- struct lib *lp, *libs = NULL;
- int i, libtype, islink, expected_type = LIB_ANY;
- char realname[BUFFER_SIZE];
-
- /* We need a writable copy of this string */
- path = strdup(rawname);
- if (!path) {
- err(EXIT_FATAL, "Out of memory!\n");
- }
- /* 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);
- *(path_n + i - 1)='\0';
- }
- name = path;
+ DIR *dir;
+ const char *name;
+ struct dirent *ent;
+ char *so, *path, *path_n;
+ struct lib *lp, *libs = NULL;
+ int i, libtype, islink, expected_type = LIB_ANY;
+ char realname[BUFFER_SIZE];
+
+ /* We need a writable copy of this string */
+ path = strdup(rawname);
+ if (!path) {
+ err(EXIT_FATAL, "Out of memory!\n");
+ }
+ /* 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);
+ *(path_n + i - 1) = '\0';
+ }
+ name = path;
#if 0
- char *t;
- /* Check for an embedded expected type */
- t=strrchr(name, '=');
- if( t )
- {
- *t++ = '\0'; /* Skip = char */
- if(strcasecmp(t, "libc4") == 0)
- {
- expected_type = LIB_DLL;
- }
- else
- {
- if(strcasecmp(t, "libc5") == 0)
- {
- expected_type = LIB_ELF_LIBC5;
- }
- else
- {
- if(strcasecmp(t, "libc6") == 0)
- {
- expected_type = LIB_ELF_LIBC6;
- }
- else
- {
- if(strcasecmp(t, "libc0") == 0)
- {
- expected_type = LIB_ELF_LIBC0;
- }
- else
- {
- warnx("Unknown type field '%s' for dir '%s' - ignored", t, name);
- expected_type = LIB_ANY;
- }
+ char *t;
+ /* Check for an embedded expected type */
+ t = strrchr(name, '=');
+ if (t) {
+ *t++ = '\0'; /* Skip = char */
+ if (strcasecmp(t, "libc4") == 0) {
+ expected_type = LIB_DLL;
+ } else {
+ if (strcasecmp(t, "libc5") == 0) {
+ expected_type = LIB_ELF_LIBC5;
+ } else {
+ if (strcasecmp(t, "libc6") == 0) {
+ expected_type = LIB_ELF_LIBC6;
+ } else {
+ if (strcasecmp(t, "libc0") == 0) {
+ expected_type = LIB_ELF_LIBC0;
+ } else {
+ warnx("Unknown type field '%s' for dir '%s' - ignored", t, name);
+ expected_type = LIB_ANY;
+ }
+ }
+ }
}
- }
}
- }
#endif
- /* let 'em know what's going on */
- if (verbose > 0)
- printf("%s:\n", name);
+ /* let 'em know what's going on */
+ if (verbose > 0)
+ printf("%s:\n", name);
- /* get real path in case of chroot */
- if (!chroot_realpath(chroot_dir, name, realname))
- warn("can't resolve %s in chroot %s", name, chroot_dir);
+ /* get real path in case of chroot */
+ if (!chroot_realpath(chroot_dir, name, realname))
+ warn("can't resolve %s in chroot %s", name, chroot_dir);
+
+ /* if we can't open it, we can't do anything */
+ if ((dir = opendir(realname)) == NULL) {
+ warn("skipping %s", name);
+ free(path);
+ return;
+ }
- /* if we can't open it, we can't do anything */
- if ((dir = opendir(realname)) == NULL)
- {
- warn("skipping %s", name);
- free(path);
- return;
- }
-
- /* yes, we have to look at every single file */
- while ((ent = readdir(dir)) != NULL)
- {
- /* if it's not a shared library, don't bother */
- if ((so = is_shlib(name, ent->d_name, &libtype, &islink, expected_type)) == NULL)
- continue;
-
- /* have we already seen one with the same so name? */
- for (lp = libs; lp; lp = lp->next)
- {
- if (strcmp(so, lp->so) == 0)
- {
- /* we have, which one do we want to use? */
- if ((!islink && lp->islink) ||
- (islink == lp->islink &&
- libcmp(ent->d_name, lp->name) > 0))
- {
- /* let's use the new one */
- free(lp->name);
- lp->name = xstrdup(ent->d_name);
- lp->libtype = libtype;
- lp->islink = islink;
- }
- break;
- }
+ /* yes, we have to look at every single file */
+ while ((ent = readdir(dir)) != NULL) {
+ /* if it's not a shared library, don't bother */
+ if ((so = is_shlib(name, ent->d_name, &libtype, &islink, expected_type)) == NULL)
+ continue;
+
+ /* have we already seen one with the same so name? */
+ for (lp = libs; lp; lp = lp->next) {
+ if (strcmp(so, lp->so) == 0) {
+ /* we have, which one do we want to use? */
+ if ((!islink && lp->islink) ||
+ (islink == lp->islink &&
+ libcmp(ent->d_name, lp->name) > 0)) {
+ /* let's use the new one */
+ free(lp->name);
+ lp->name = xstrdup(ent->d_name);
+ lp->libtype = libtype;
+ lp->islink = islink;
+ }
+ break;
+ }
+ }
+
+ /* congratulations, you're the first one we've seen */
+ if (!lp) {
+ lp = xmalloc(sizeof *lp);
+ lp->so = xstrdup(so);
+ lp->name = xstrdup(ent->d_name);
+ lp->libtype = libtype;
+ lp->islink = islink;
+ lp->next = libs;
+ libs = lp;
+ }
+
+ free(so);
+ }
+
+ /* don't need this any more */
+ closedir(dir);
+
+ /* now we have all the latest libs, update the links */
+ for (lp = libs; lp; lp = lp->next) {
+ if (!lp->islink)
+ link_shlib(name, lp->name, lp->so);
+ if (!nocache)
+ cache_dolib(name, lp->so, lp->libtype);
}
- /* congratulations, you're the first one we've seen */
- if (!lp)
- {
- lp = xmalloc(sizeof *lp);
- lp->so = xstrdup(so);
- lp->name = xstrdup(ent->d_name);
- lp->libtype = libtype;
- lp->islink = islink;
- lp->next = libs;
- libs = lp;
+ /* always try to clean up after ourselves */
+ while (libs) {
+ lp = libs->next;
+ free(libs->so);
+ free(libs->name);
+ free(libs);
+ libs = lp;
}
- free(so);
- }
-
- /* don't need this any more */
- closedir(dir);
-
- /* now we have all the latest libs, update the links */
- for (lp = libs; lp; lp = lp->next)
- {
- if (!lp->islink)
- link_shlib(name, lp->name, lp->so);
- if (!nocache)
- cache_dolib(name, lp->so, lp->libtype);
- }
-
- /* always try to clean up after ourselves */
- while (libs)
- {
- lp = libs->next;
- free(libs->so);
- free(libs->name);
- free(libs);
- libs = lp;
- }
-
- free(path);
- return;
+ free(path);
+ return;
}
#ifndef __LDSO_CACHE_SUPPORT__
void cache_print(void)
{
- printf("Library cache disabled\n");
+ printf("Library cache disabled\n");
}
void cache_dolib(const char *dir, const char *so, int libtype)
{
- return;
+ return;
}
void cache_write(void)
{
- return;
+ return;
}
#else
/* return the list of system-specific directories */
char *get_extpath(void)
{
- char *res = NULL, *cp;
- FILE *file;
- struct stat stat;
- char realconffile[BUFFER_SIZE];
-
- if (!chroot_realpath(chroot_dir, conffile, realconffile))
- return NULL;
-
- if ((file = fopen(realconffile, "r")) != NULL)
- {
- fstat(fileno(file), &stat);
- res = xmalloc(stat.st_size + 1);
- fread(res, 1, stat.st_size, file);
- fclose(file);
- res[stat.st_size] = '\0';
-
- /* convert comments fo spaces */
- for (cp = res; *cp; /*nada*/) {
- if (*cp == '#') {
- do
- *cp++ = ' ';
- while (*cp && *cp != '\n');
- } else {
- cp++;
- }
- }
- }
-
- return res;
+ char *res = NULL, *cp;
+ FILE *file;
+ struct stat stat;
+ char realconffile[BUFFER_SIZE];
+
+ if (!chroot_realpath(chroot_dir, conffile, realconffile))
+ return NULL;
+
+ if ((file = fopen(realconffile, "r")) != NULL) {
+ fstat(fileno(file), &stat);
+ res = xmalloc(stat.st_size + 1);
+ fread(res, 1, stat.st_size, file);
+ fclose(file);
+ res[stat.st_size] = '\0';
+
+ /* convert comments fo spaces */
+ for (cp = res; *cp; /*nada */ ) {
+ if (*cp == '#') {
+ do
+ *cp++ = ' ';
+ while (*cp && *cp != '\n');
+ } else {
+ cp++;
+ }
+ }
+ }
+
+ return res;
}
-typedef struct liblist
-{
- int flags;
- int sooffset;
- int liboffset;
- char *soname;
- char *libname;
- struct liblist *next;
+typedef struct liblist {
+ int flags;
+ int sooffset;
+ int liboffset;
+ char *soname;
+ char *libname;
+ struct liblist *next;
} liblist_t;
static header_t magic = { LDSO_CACHE_MAGIC, LDSO_CACHE_VER, 0 };
static int liblistcomp(liblist_t *x, liblist_t *y)
{
- int res;
+ int res;
- if ((res = libcmp(x->soname, y->soname)) == 0)
- {
- res = libcmp(strrchr(x->libname, '/') + 1,
- strrchr(y->libname, '/') + 1);
- }
+ if ((res = libcmp(x->soname, y->soname)) == 0) {
+ res = libcmp(strrchr(x->libname, '/') + 1,
+ strrchr(y->libname, '/') + 1);
+ }
- return res;
+ return res;
}
void cache_dolib(const char *dir, const char *so, int libtype)
{
- char fullpath[PATH_MAX];
- liblist_t *new_lib, *cur_lib;
-
- magic.nlibs++;
- sprintf(fullpath, "%s/%s", dir, so);
- new_lib = xmalloc(sizeof (liblist_t));
- new_lib->flags = libtype;
- new_lib->soname = xstrdup(so);
- new_lib->libname = xstrdup(fullpath);
-
- if (lib_head == NULL || liblistcomp(new_lib, lib_head) > 0)
- {
- new_lib->next = lib_head;
- lib_head = new_lib;
- }
- else
- {
- for (cur_lib = lib_head; cur_lib->next != NULL &&
- liblistcomp(new_lib, cur_lib->next) <= 0;
- cur_lib = cur_lib->next)
- /* nothing */;
- new_lib->next = cur_lib->next;
- cur_lib->next = new_lib;
- }
+ char fullpath[PATH_MAX];
+ liblist_t *new_lib, *cur_lib;
+
+ magic.nlibs++;
+ sprintf(fullpath, "%s/%s", dir, so);
+ new_lib = xmalloc(sizeof(liblist_t));
+ new_lib->flags = libtype;
+ new_lib->soname = xstrdup(so);
+ new_lib->libname = xstrdup(fullpath);
+
+ if (lib_head == NULL || liblistcomp(new_lib, lib_head) > 0) {
+ new_lib->next = lib_head;
+ lib_head = new_lib;
+ } else {
+ for (cur_lib = lib_head; cur_lib->next != NULL &&
+ liblistcomp(new_lib, cur_lib->next) <= 0;
+ cur_lib = cur_lib->next)
+ /* nothing */ ;
+ new_lib->next = cur_lib->next;
+ cur_lib->next = new_lib;
+ }
}
void cache_write(void)
{
- int cachefd;
- int stroffset = 0;
- char realcachefile[BUFFER_SIZE];
- char tempfile[BUFFER_SIZE];
- header_t swap_magic;
- header_t *magic_ptr;
- libentry_t swap_lib;
- libentry_t *lib_ptr;
- liblist_t *cur_lib;
-
- if (!magic.nlibs)
- return;
+ int cachefd;
+ int stroffset = 0;
+ char realcachefile[BUFFER_SIZE];
+ char tempfile[BUFFER_SIZE];
+ header_t swap_magic;
+ header_t *magic_ptr;
+ libentry_t swap_lib;
+ libentry_t *lib_ptr;
+ liblist_t *cur_lib;
+
+ if (!magic.nlibs)
+ return;
+
+ if (!chroot_realpath(chroot_dir, cachefile, realcachefile))
+ err(EXIT_FATAL, "can't resolve %s in chroot %s (%s)",
+ cachefile, chroot_dir, strerror(errno));
+
+ sprintf(tempfile, "%s~", realcachefile);
+
+ if (unlink(tempfile) && errno != ENOENT)
+ err(EXIT_FATAL, "can't unlink %s~ (%s)", cachefile,
+ strerror(errno));
+
+ if ((cachefd = creat(tempfile, 0644)) < 0)
+ err(EXIT_FATAL, "can't create %s~ (%s)", cachefile,
+ strerror(errno));
- if (!chroot_realpath(chroot_dir, cachefile, realcachefile))
- err(EXIT_FATAL,"can't resolve %s in chroot %s (%s)",
- cachefile, chroot_dir, strerror(errno));
-
- sprintf(tempfile, "%s~", realcachefile);
-
- if (unlink(tempfile) && errno != ENOENT)
- err(EXIT_FATAL,"can't unlink %s~ (%s)", cachefile, strerror(errno));
-
- if ((cachefd = creat(tempfile, 0644)) < 0)
- err(EXIT_FATAL,"can't create %s~ (%s)", cachefile, strerror(errno));
-
- if (byteswap) {
- swap_magic = magic;
- swap_magic.nlibs = bswap_32(swap_magic.nlibs);
- magic_ptr = &swap_magic;
- } else {
- magic_ptr = &magic;
- }
- if (write(cachefd, magic_ptr, sizeof (header_t)) != sizeof (header_t))
- err(EXIT_FATAL,"can't write %s~ (%s)", cachefile, strerror(errno));
-
- for (cur_lib = lib_head; cur_lib != NULL; cur_lib = cur_lib->next)
- {
- cur_lib->sooffset = stroffset;
- stroffset += strlen(cur_lib->soname) + 1;
- cur_lib->liboffset = stroffset;
- stroffset += strlen(cur_lib->libname) + 1;
if (byteswap) {
- swap_lib.flags = bswap_32(cur_lib->flags);
- swap_lib.sooffset = bswap_32(cur_lib->sooffset);
- swap_lib.liboffset = bswap_32(cur_lib->liboffset);
- lib_ptr = &swap_lib;
+ swap_magic = magic;
+ swap_magic.nlibs = bswap_32(swap_magic.nlibs);
+ magic_ptr = &swap_magic;
} else {
- lib_ptr = (libentry_t *)cur_lib;
+ magic_ptr = &magic;
}
- if (write(cachefd, lib_ptr, sizeof (libentry_t)) !=
- sizeof (libentry_t))
- err(EXIT_FATAL,"can't write %s~ (%s)", cachefile, strerror(errno));
- }
-
- for (cur_lib = lib_head; cur_lib != NULL; cur_lib = cur_lib->next)
- {
- if ((size_t)write(cachefd, cur_lib->soname, strlen(cur_lib->soname) + 1)
- != strlen(cur_lib->soname) + 1)
- err(EXIT_FATAL,"can't write %s~ (%s)", cachefile, strerror(errno));
- if ((size_t)write(cachefd, cur_lib->libname, strlen(cur_lib->libname) + 1)
- != strlen(cur_lib->libname) + 1)
- err(EXIT_FATAL,"can't write %s~ (%s)", cachefile, strerror(errno));
- }
-
- if (close(cachefd))
- err(EXIT_FATAL,"can't close %s~ (%s)", cachefile, strerror(errno));
-
- if (chmod(tempfile, 0644))
- err(EXIT_FATAL,"can't chmod %s~ (%s)", cachefile, strerror(errno));
-
- if (rename(tempfile, realcachefile))
- err(EXIT_FATAL,"can't rename %s~ (%s)", cachefile, strerror(errno));
+ if (write(cachefd, magic_ptr, sizeof(header_t)) != sizeof(header_t))
+ err(EXIT_FATAL, "can't write %s~ (%s)", cachefile,
+ strerror(errno));
+
+ for (cur_lib = lib_head; cur_lib != NULL; cur_lib = cur_lib->next) {
+ cur_lib->sooffset = stroffset;
+ stroffset += strlen(cur_lib->soname) + 1;
+ cur_lib->liboffset = stroffset;
+ stroffset += strlen(cur_lib->libname) + 1;
+ if (byteswap) {
+ swap_lib.flags = bswap_32(cur_lib->flags);
+ swap_lib.sooffset = bswap_32(cur_lib->sooffset);
+ swap_lib.liboffset = bswap_32(cur_lib->liboffset);
+ lib_ptr = &swap_lib;
+ } else {
+ lib_ptr = (libentry_t *) cur_lib;
+ }
+ if (write(cachefd, lib_ptr, sizeof(libentry_t)) !=
+ sizeof(libentry_t))
+ err(EXIT_FATAL, "can't write %s~ (%s)", cachefile,
+ strerror(errno));
+ }
+
+ for (cur_lib = lib_head; cur_lib != NULL; cur_lib = cur_lib->next) {
+ if ((size_t)write(cachefd, cur_lib->soname, strlen(cur_lib->soname) + 1)
+ != strlen(cur_lib->soname) + 1)
+ err(EXIT_FATAL, "can't write %s~ (%s)", cachefile,
+ strerror(errno));
+ if ((size_t)write(cachefd, cur_lib->libname, strlen(cur_lib->libname) + 1)
+ != strlen(cur_lib->libname) + 1)
+ err(EXIT_FATAL, "can't write %s~ (%s)", cachefile,
+ strerror(errno));
+ }
+
+ if (close(cachefd))
+ err(EXIT_FATAL, "can't close %s~ (%s)", cachefile,
+ strerror(errno));
+
+ if (chmod(tempfile, 0644))
+ err(EXIT_FATAL, "can't chmod %s~ (%s)", cachefile,
+ strerror(errno));
+
+ if (rename(tempfile, realcachefile))
+ err(EXIT_FATAL, "can't rename %s~ (%s)", cachefile,
+ strerror(errno));
}
void cache_print(void)
{
- caddr_t c;
- struct stat st;
- int fd = 0;
- char *strs;
- header_t *header;
- libentry_t *libent;
- char realcachefile[BUFFER_SIZE];
-
- if (!chroot_realpath(chroot_dir, cachefile, realcachefile))
- err(EXIT_FATAL,"can't resolve %s in chroot %s (%s)",
- cachefile, chroot_dir, strerror(errno));
-
- if (stat(realcachefile, &st) || (fd = open(realcachefile, O_RDONLY))<0)
- err(EXIT_FATAL,"can't read %s (%s)", cachefile, strerror(errno));
- if ((c = mmap(0,st.st_size, PROT_READ, LDSO_CACHE_MMAP_FLAGS, fd, 0)) == (caddr_t)-1)
- err(EXIT_FATAL,"can't map %s (%s)", cachefile, strerror(errno));
- close(fd);
-
- if (memcmp(((header_t *)c)->magic, LDSO_CACHE_MAGIC, LDSO_CACHE_MAGIC_LEN))
- err(EXIT_FATAL,"%s cache corrupt", cachefile);
-
- if (memcmp(((header_t *)c)->version, LDSO_CACHE_VER, LDSO_CACHE_VER_LEN))
- err(EXIT_FATAL,"wrong cache version - expected %s", LDSO_CACHE_VER);
-
- header = (header_t *)c;
- libent = (libentry_t *)(c + sizeof (header_t));
- strs = (char *)&libent[header->nlibs];
-
- printf("%d libs found in cache `%s' (version %s)\n",
- header->nlibs, cachefile, LDSO_CACHE_VER);
-
- for (fd = 0; fd < header->nlibs; fd++)
- {
- printf("\t%s ", strs + libent[fd].sooffset);
- switch (libent[fd].flags & ~LIB_ELF64)
- {
- case LIB_DLL:
- printf("(libc4)");
- break;
- case LIB_ELF:
- printf("(ELF%s)", libent[fd].flags & LIB_ELF64 ? "/64" : "");
- break;
- case LIB_ELF_LIBC0:
- printf("(libc0%s)",libent[fd].flags & LIB_ELF64 ? "/64" : "");
- break;
- case LIB_ELF_LIBC5:
- case LIB_ELF_LIBC6:
- printf("(libc%d%s)", (libent[fd].flags & ~LIB_ELF64) + 3,
- libent[fd].flags & LIB_ELF64 ? "/64" : "");
- break;
- default:
- printf("(unknown)");
- break;
+ caddr_t c;
+ struct stat st;
+ int fd = 0;
+ char *strs;
+ header_t *header;
+ libentry_t *libent;
+ char realcachefile[BUFFER_SIZE];
+
+ if (!chroot_realpath(chroot_dir, cachefile, realcachefile))
+ err(EXIT_FATAL, "can't resolve %s in chroot %s (%s)",
+ cachefile, chroot_dir, strerror(errno));
+
+ if (stat(realcachefile, &st) || (fd = open(realcachefile, O_RDONLY)) < 0)
+ err(EXIT_FATAL, "can't read %s (%s)", cachefile, strerror(errno));
+
+ c = mmap(0, st.st_size, PROT_READ, LDSO_CACHE_MMAP_FLAGS, fd, 0);
+ if (c == MAP_FAILED)
+ err(EXIT_FATAL, "can't map %s (%s)", cachefile, strerror(errno));
+ close(fd);
+
+ if (memcmp(((header_t *) c)->magic, LDSO_CACHE_MAGIC, LDSO_CACHE_MAGIC_LEN))
+ err(EXIT_FATAL, "%s cache corrupt", cachefile);
+
+ if (memcmp(((header_t *) c)->version, LDSO_CACHE_VER, LDSO_CACHE_VER_LEN))
+ err(EXIT_FATAL, "wrong cache version - expected %s",
+ LDSO_CACHE_VER);
+
+ header = (header_t *) c;
+ libent = (libentry_t *) (c + sizeof(header_t));
+ strs = (char *)&libent[header->nlibs];
+
+ printf("%d libs found in cache `%s' (version %s)\n",
+ header->nlibs, cachefile, LDSO_CACHE_VER);
+
+ for (fd = 0; fd < header->nlibs; fd++) {
+ printf("\t%s ", strs + libent[fd].sooffset);
+ switch (libent[fd].flags & ~LIB_ELF64) {
+ case LIB_DLL:
+ printf("(libc4)");
+ break;
+ case LIB_ELF:
+ printf("(ELF%s)", libent[fd].flags & LIB_ELF64 ? "/64" : "");
+ break;
+ case LIB_ELF_LIBC0:
+ printf("(libc0%s)", libent[fd].flags & LIB_ELF64 ? "/64" : "");
+ break;
+ case LIB_ELF_LIBC5:
+ case LIB_ELF_LIBC6:
+ printf("(libc%d%s)",
+ (libent[fd].flags & ~LIB_ELF64) + 3,
+ libent[fd].flags & LIB_ELF64 ? "/64" : "");
+ break;
+ default:
+ printf("(unknown)");
+ break;
+ }
+ printf(" => %s\n", strs + libent[fd].liboffset);
}
- printf(" => %s\n", strs + libent[fd].liboffset);
- }
- munmap (c,st.st_size);
+ munmap(c, st.st_size);
}
#endif
void usage(void)
{
- fprintf(stderr,
+ fprintf(stderr,
#ifdef __LDSO_CACHE_SUPPORT__
- "ldconfig - updates symlinks and cache for shared libraries\n\n"
- "Usage: ldconfig [-DvqnNX] [-f conf] [-C cache] [-r root] dir ...\n"
- " ldconfig -l [-Dv] lib ...\n"
- " ldconfig -p\n\nOptions:\n"
+ "ldconfig - updates symlinks and cache for shared libraries\n\n"
+ "Usage: ldconfig [-DvqnNX] [-f conf] [-C cache] [-r root] dir ...\n"
+ " ldconfig -l [-Dv] lib ...\n"
+ " ldconfig -p\n\nOptions:\n"
#else
- "ldconfig - updates symlinks for shared libraries\n\n"
- "Usage: ldconfig [-DvqnX] [-r root] dir ...\n"
- " ldconfig -l [-Dv] lib ...\n\nOptions:\n"
+ "ldconfig - updates symlinks for shared libraries\n\n"
+ "Usage: ldconfig [-DvqnX] [-r root] dir ...\n"
+ " ldconfig -l [-Dv] lib ...\n\nOptions:\n"
#endif
- "\t-D:\t\tdebug mode, don't update links\n"
- "\t-v:\t\tverbose mode, print things as we go\n"
- "\t-q:\t\tquiet mode, don't print warnings\n"
- "\t-n:\t\tdon't process standard directories\n"
- "\t-N:\t\tdon't update the library cache\n"
- "\t-X:\t\tdon't update the library links\n"
- "\t-l:\t\tlibrary mode, manually link libraries\n"
- "\t-p:\t\tprint the current library cache\n"
+ "\t-D:\t\tdebug mode, don't update links\n"
+ "\t-v:\t\tverbose mode, print things as we go\n"
+ "\t-q:\t\tquiet mode, don't print warnings\n"
+ "\t-n:\t\tdon't process standard directories\n"
+ "\t-N:\t\tdon't update the library cache\n"
+ "\t-X:\t\tdon't update the library links\n"
+ "\t-l:\t\tlibrary mode, manually link libraries\n"
+ "\t-p:\t\tprint the current library cache\n"
#ifdef __LDSO_CACHE_SUPPORT__
- "\t-f conf :\tuse conf instead of %s\n"
- "\t-C cache:\tuse cache instead of %s\n"
+ "\t-f conf :\tuse conf instead of %s\n"
+ "\t-C cache:\tuse cache instead of %s\n"
#endif
- "\t-r root :\tfirst, do a chroot to the indicated directory\n"
- "\tdir ... :\tdirectories to process\n"
+ "\t-r root :\tfirst, do a chroot to the indicated directory\n"
+ "\tdir ... :\tdirectories to process\n"
#ifdef __LDSO_CACHE_SUPPORT__
- "\tlib ... :\tlibraries to link\n\n",
- LDSO_CONF, LDSO_CACHE
+ "\tlib ... :\tlibraries to link\n\n", LDSO_CONF, LDSO_CACHE
#else
- "\tlib ... :\tlibraries to link\n\n"
+ "\tlib ... :\tlibraries to link\n\n"
#endif
- );
- exit(EXIT_FATAL);
+ );
+ exit(EXIT_FATAL);
}
#define DIR_SEP ":, \t\n"
int main(int argc, char **argv)
{
- int i, c;
- int nodefault = 0;
- char *cp, *dir, *so;
- int libtype, islink;
- int printcache = 0;
+ int i, c;
+ int nodefault = 0;
+ char *cp, *dir, *so;
+ int libtype, islink;
+ int printcache = 0;
#ifdef __LDSO_CACHE_SUPPORT__
- char *extpath;
+ char *extpath;
#endif
- prog = argv[0];
- opterr = 0;
-
- while ((c = getopt(argc, argv, "DvqnNXlpf:C:r:")) != EOF)
- switch (c)
- {
- case 'D':
- debug = 1; /* debug mode */
- nocache = 1;
- nolinks = 1;
- verbose = 1;
- break;
- case 'v':
- verbose = 1; /* verbose mode */
- break;
- case 'q':
- if (verbose <= 0)
- verbose = -1; /* quiet mode */
- break;
- case 'n':
- nodefault = 1; /* no default dirs */
- nocache = 1;
- break;
- case 'N':
- nocache = 1; /* don't build cache */
- break;
- case 'X':
- nolinks = 1; /* don't update links */
- break;
- case 'l':
- libmode = 1; /* library mode */
- break;
- case 'p':
- printcache = 1; /* print cache */
- break;
- case 'f':
+ prog = argv[0];
+ opterr = 0;
+
+ while ((c = getopt(argc, argv, "DvqnNXlpf:C:r:")) != EOF)
+ switch (c) {
+ case 'D':
+ debug = 1; /* debug mode */
+ nocache = 1;
+ nolinks = 1;
+ verbose = 1;
+ break;
+ case 'v':
+ verbose = 1; /* verbose mode */
+ break;
+ case 'q':
+ if (verbose <= 0)
+ verbose = -1; /* quiet mode */
+ break;
+ case 'n':
+ nodefault = 1; /* no default dirs */
+ nocache = 1;
+ break;
+ case 'N':
+ nocache = 1; /* don't build cache */
+ break;
+ case 'X':
+ nolinks = 1; /* don't update links */
+ break;
+ case 'l':
+ libmode = 1; /* library mode */
+ break;
+ case 'p':
+ printcache = 1; /* print cache */
+ break;
+ case 'f':
#ifdef __LDSO_CACHE_SUPPORT__
- conffile = optarg; /* alternate conf file */
+ conffile = optarg; /* alternate conf file */
#endif
- break;
- case 'C':
+ break;
+ case 'C':
#ifdef __LDSO_CACHE_SUPPORT__
- cachefile = optarg; /* alternate cache file */
+ cachefile = optarg; /* alternate cache file */
#endif
- break;
- case 'r':
- chroot_dir = optarg;
- break;
- default:
- usage();
- break;
-
- /* THE REST OF THESE ARE UNDOCUMENTED AND MAY BE REMOVED
- IN FUTURE VERSIONS. */
- }
+ break;
+ case 'r':
+ chroot_dir = optarg;
+ break;
+ default:
+ usage();
+ break;
+
+ /* THE REST OF THESE ARE UNDOCUMENTED AND MAY BE REMOVED
+ IN FUTURE VERSIONS. */
+ }
- if (chroot_dir && *chroot_dir) {
- if (chroot(chroot_dir) < 0) {
- if (chdir(chroot_dir) < 0)
- err(EXIT_FATAL,"couldn't chroot to %s (%s)", chroot_dir, strerror(errno));
- }
- else
- {
- if (chdir("/") < 0)
- err(EXIT_FATAL,"couldn't chdir to / (%s)", strerror(errno));
- chroot_dir = NULL;
+ if (chroot_dir && *chroot_dir) {
+ if (chroot(chroot_dir) < 0) {
+ if (chdir(chroot_dir) < 0)
+ err(EXIT_FATAL, "couldn't chroot to %s (%s)", chroot_dir, strerror(errno));
+ } else {
+ if (chdir("/") < 0)
+ err(EXIT_FATAL, "couldn't chdir to / (%s)", strerror(errno));
+ chroot_dir = NULL;
+ }
}
- }
- /* allow me to introduce myself, hi, my name is ... */
- if (verbose > 0)
- printf("%s: uClibc version\n", argv[0]);
+ /* allow me to introduce myself, hi, my name is ... */
+ if (verbose > 0)
+ printf("%s: uClibc version\n", argv[0]);
+
+ if (printcache) {
+ /* print the cache -- don't you trust me? */
+ cache_print();
+ exit(EXIT_OK);
+ } else if (libmode) {
+ /* so you want to do things manually, eh? */
+
+ /* ok, if you're so smart, which libraries do we link? */
+ for (i = optind; i < argc; i++) {
+ /* split into directory and file parts */
+ if (!(cp = strrchr(argv[i], '/'))) {
+ dir = "."; /* no dir, only a filename */
+ cp = argv[i];
+ } else {
+ if (cp == argv[i])
+ dir = "/"; /* file in root directory */
+ else
+ dir = argv[i];
+ *cp++ = '\0'; /* neither of the above */
+ }
- if (printcache)
- {
- /* print the cache -- don't you trust me? */
- cache_print();
- exit(EXIT_OK);
- }
- else if (libmode)
- {
- /* so you want to do things manually, eh? */
-
- /* ok, if you're so smart, which libraries do we link? */
- for (i = optind; i < argc; i++)
- {
- /* split into directory and file parts */
- if (!(cp = strrchr(argv[i], '/')))
- {
- dir = "."; /* no dir, only a filename */
- cp = argv[i];
- }
- else
- {
- if (cp == argv[i])
- dir = "/"; /* file in root directory */
- else
- dir = argv[i];
- *cp++ = '\0'; /* neither of the above */
- }
+ /* we'd better do a little bit of checking */
+ if ((so = is_shlib(dir, cp, &libtype, &islink, LIB_ANY)) == NULL)
+ err(EXIT_FATAL, "%s%s%s is not a shared library",
+ dir, (*dir && strcmp(dir, "/")) ? "/" : "", cp);
- /* we'd better do a little bit of checking */
- if ((so = is_shlib(dir, cp, &libtype, &islink, LIB_ANY)) == NULL)
- err(EXIT_FATAL,"%s%s%s is not a shared library", dir,
- (*dir && strcmp(dir, "/")) ? "/" : "", cp);
+ /* so far, so good, maybe he knows what he's doing */
+ link_shlib(dir, cp, so);
+ }
+ } else {
+ /* the lazy bum want's us to do all the work for him */
- /* so far, so good, maybe he knows what he's doing */
- link_shlib(dir, cp, so);
- }
- }
- else
- {
- /* the lazy bum want's us to do all the work for him */
-
- /* don't cache dirs on the command line */
- int nocache_save = nocache;
- nocache = 1;
-
- /* OK, which directories should we do? */
- for (i = optind; i < argc; i++)
- scan_dir(argv[i]);
-
- /* restore the desired caching state */
- nocache = nocache_save;
-
- /* look ma, no defaults */
- if (!nodefault)
- {
- scan_dir(UCLIBC_RUNTIME_PREFIX "lib");
- scan_dir(UCLIBC_RUNTIME_PREFIX "usr/lib");
+ /* don't cache dirs on the command line */
+ int nocache_save = nocache;
+ nocache = 1;
+
+ /* OK, which directories should we do? */
+ for (i = optind; i < argc; i++)
+ scan_dir(argv[i]);
+
+ /* restore the desired caching state */
+ nocache = nocache_save;
+
+ /* look ma, no defaults */
+ if (!nodefault) {
+ scan_dir(UCLIBC_RUNTIME_PREFIX "lib");
+ scan_dir(UCLIBC_RUNTIME_PREFIX "usr/lib");
#ifndef __LDSO_CACHE_SUPPORT__
- scan_dir(UCLIBC_RUNTIME_PREFIX "usr/X11R6/lib");
+ scan_dir(UCLIBC_RUNTIME_PREFIX "usr/X11R6/lib");
#else
- /* I guess the defaults aren't good enough */
- if ((extpath = get_extpath()))
- {
- for (cp = strtok(extpath, DIR_SEP); cp; cp = strtok(NULL, DIR_SEP)) {
- /* strip trailing slashes */
- int len = strlen(cp);
- if (len)
- while (cp[--len] == '/' && len)
- cp[len] = 0;
- /* we do the redundancy check only if cache usage is enabled */
- if (strcmp(UCLIBC_RUNTIME_PREFIX "lib", cp) == 0 ||
- strcmp(UCLIBC_RUNTIME_PREFIX "usr/lib", cp) == 0) {
- if (verbose >= 0)
- warnx("You should remove `%s' from `%s'", cp, LDSO_CONF);
- continue;
+ /* I guess the defaults aren't good enough */
+ if ((extpath = get_extpath())) {
+ for (cp = strtok(extpath, DIR_SEP); cp; cp = strtok(NULL, DIR_SEP)) {
+ /* strip trailing slashes */
+ int len = strlen(cp);
+ if (len)
+ while (cp[--len] == '/' && len)
+ cp[len] = 0;
+ /* we do the redundancy check only if cache usage is enabled */
+ if (strcmp(UCLIBC_RUNTIME_PREFIX "lib", cp) == 0
+ || strcmp(UCLIBC_RUNTIME_PREFIX "usr/lib", cp) == 0) {
+ if (verbose >= 0)
+ warnx("You should remove `%s' from `%s'", cp, LDSO_CONF);
+ continue;
+ }
+ scan_dir(cp);
+ }
+ free(extpath);
}
- scan_dir(cp);
- }
- free(extpath);
- }
#endif
- }
+ }
- if (!nocache)
- cache_write();
- }
+ if (!nocache)
+ cache_write();
+ }
- exit(EXIT_OK);
+ exit(EXIT_OK);
}
-
char *interp_name = NULL;
char *interp_dir = NULL;
int byteswap;
-static int interpreter_already_found=0;
+static int interpreter_already_found = 0;
inline uint32_t byteswap32_to_host(uint32_t value)
{
- if (byteswap==1) {
- return(bswap_32(value));
+ if (byteswap == 1) {
+ return (bswap_32(value));
} else {
- return(value);
+ return (value);
}
}
inline uint64_t byteswap64_to_host(uint64_t value)
{
- if (byteswap==1) {
- return(bswap_64(value));
+ if (byteswap == 1) {
+ return (bswap_64(value));
} else {
- return(value);
+ return (value);
}
}
+
#if ELFCLASSM == ELFCLASS32
# define byteswap_to_host(x) byteswap32_to_host(x)
#else
# define byteswap_to_host(x) byteswap64_to_host(x)
#endif
-ElfW(Shdr) * elf_find_section_type( uint32_t key, ElfW(Ehdr) *ehdr)
+ElfW(Shdr) *elf_find_section_type(uint32_t key, ElfW(Ehdr) *ehdr)
{
int j;
ElfW(Shdr) *shdr;
- shdr = (ElfW(Shdr) *)(ehdr->e_shoff + (char *)ehdr);
- for (j = ehdr->e_shnum; --j>=0; ++shdr) {
- if (key==byteswap32_to_host(shdr->sh_type)) {
+ shdr = (ElfW(Shdr) *) (ehdr->e_shoff + (char *)ehdr);
+ for (j = ehdr->e_shnum; --j >= 0; ++shdr) {
+ if (key == byteswap32_to_host(shdr->sh_type)) {
return shdr;
}
}
return NULL;
}
-ElfW(Phdr) * elf_find_phdr_type( uint32_t type, ElfW(Ehdr) *ehdr)
+ElfW(Phdr) *elf_find_phdr_type(uint32_t type, ElfW(Ehdr) *ehdr)
{
int j;
- ElfW(Phdr) *phdr = (ElfW(Phdr) *)(ehdr->e_phoff + (char *)ehdr);
- for (j = ehdr->e_phnum; --j>=0; ++phdr) {
- if (type==byteswap32_to_host(phdr->p_type)) {
+ ElfW(Phdr) *phdr = (ElfW(Phdr) *) (ehdr->e_phoff + (char *)ehdr);
+ for (j = ehdr->e_phnum; --j >= 0; ++phdr) {
+ if (type == byteswap32_to_host(phdr->p_type)) {
return phdr;
}
}
}
/* Returns value if return_val==1, ptr otherwise */
-void * elf_find_dynamic( int64_t const key, ElfW(Dyn) *dynp,
- ElfW(Ehdr) *ehdr, int return_val)
+void *elf_find_dynamic(int64_t const key, ElfW(Dyn) *dynp,
+ ElfW(Ehdr) *ehdr, int return_val)
{
ElfW(Phdr) *pt_text = elf_find_phdr_type(PT_LOAD, ehdr);
unsigned tx_reloc = byteswap_to_host(pt_text->p_vaddr) - byteswap_to_host(pt_text->p_offset);
- for (; DT_NULL!=byteswap_to_host(dynp->d_tag); ++dynp) {
+ for (; DT_NULL != byteswap_to_host(dynp->d_tag); ++dynp) {
if (key == byteswap_to_host(dynp->d_tag)) {
if (return_val == 1)
return (void *)byteswap_to_host(dynp->d_un.d_val);
else
- return (void *)(byteswap_to_host(dynp->d_un.d_val) - tx_reloc + (char *)ehdr );
+ return (void *)(byteswap_to_host(dynp->d_un.d_val) - tx_reloc + (char *)ehdr);
}
}
return NULL;
}
-static char * elf_find_rpath(ElfW(Ehdr)* ehdr, ElfW(Dyn)* dynamic)
+static char *elf_find_rpath(ElfW(Ehdr) *ehdr, ElfW(Dyn) *dynamic)
{
- ElfW(Dyn) *dyns;
+ ElfW(Dyn) *dyns;
- for (dyns=dynamic; byteswap_to_host(dyns->d_tag)!=DT_NULL; ++dyns) {
+ for (dyns = dynamic; byteswap_to_host(dyns->d_tag) != DT_NULL; ++dyns) {
if (DT_RPATH == byteswap_to_host(dyns->d_tag)) {
char *strtab;
strtab = (char *)elf_find_dynamic(DT_STRTAB, dynamic, ehdr, 0);
- return ((char*)strtab + byteswap_to_host(dyns->d_un.d_val));
+ return ((char *)strtab + byteswap_to_host(dyns->d_un.d_val));
}
}
return NULL;
int check_elf_header(ElfW(Ehdr) *const ehdr)
{
- if (! ehdr || strncmp((char *)ehdr, ELFMAG, SELFMAG) != 0 ||
- ehdr->e_ident[EI_CLASS] != ELFCLASSM ||
- ehdr->e_ident[EI_VERSION] != EV_CURRENT)
+ if (!ehdr || strncmp((char *)ehdr, ELFMAG, SELFMAG) != 0 ||
+ ehdr->e_ident[EI_CLASS] != ELFCLASSM ||
+ ehdr->e_ident[EI_VERSION] != EV_CURRENT)
{
return 1;
}
#endif
/* Be vary lazy, and only byteswap the stuff we use */
- if (byteswap==1) {
+ if (byteswap == 1) {
ehdr->e_type = bswap_16(ehdr->e_type);
ehdr->e_phoff = byteswap_to_host(ehdr->e_phoff);
ehdr->e_shoff = byteswap_to_host(ehdr->e_shoff);
else if (cache_addr != NULL)
return 0;
- if (stat(LDSO_CACHE, &st)
- || (fd = open(LDSO_CACHE, O_RDONLY, 0)) < 0) {
+ if (stat(LDSO_CACHE, &st) || (fd = open(LDSO_CACHE, O_RDONLY, 0)) < 0) {
fprintf(stderr, "ldd: can't open cache '%s'\n", LDSO_CACHE);
cache_addr = (caddr_t) - 1; /* so we won't try again */
return -1;
}
cache_size = st.st_size;
- cache_addr = (caddr_t) mmap(0, cache_size, PROT_READ, MAP_SHARED, fd, 0);
+ cache_addr = mmap(0, cache_size, PROT_READ, MAP_SHARED, fd, 0);
close(fd);
if (cache_addr == MAP_FAILED) {
fprintf(stderr, "ldd: can't map cache '%s'\n", LDSO_CACHE);
header = (header_t *) cache_addr;
- if (cache_size < sizeof(header_t) ||
- memcmp(header->magic, LDSO_CACHE_MAGIC, LDSO_CACHE_MAGIC_LEN)
- || memcmp(header->version, LDSO_CACHE_VER, LDSO_CACHE_VER_LEN)
- || cache_size <
- (sizeof(header_t) + header->nlibs * sizeof(libentry_t))
- || cache_addr[cache_size - 1] != '\0')
+ if (cache_size < sizeof(header_t)
+ || memcmp(header->magic, LDSO_CACHE_MAGIC, LDSO_CACHE_MAGIC_LEN)
+ || memcmp(header->version, LDSO_CACHE_VER, LDSO_CACHE_VER_LEN)
+ || cache_size < (sizeof(header_t) + header->nlibs * sizeof(libentry_t))
+ || cache_addr[cache_size - 1] != '\0')
{
fprintf(stderr, "ldd: cache '%s' is corrupt\n", LDSO_CACHE);
goto fail;
}
- strtabsize = cache_size - sizeof(header_t) -
- header->nlibs * sizeof(libentry_t);
+ strtabsize = cache_size - sizeof(header_t) - header->nlibs * sizeof(libentry_t);
libent = (libentry_t *) & header[1];
for (i = 0; i < header->nlibs; i++) {
- if (libent[i].sooffset >= strtabsize ||
- libent[i].liboffset >= strtabsize)
- {
+ if (libent[i].sooffset >= strtabsize || libent[i].liboffset >= strtabsize) {
fprintf(stderr, "ldd: cache '%s' is corrupt\n", LDSO_CACHE);
goto fail;
}
return 0;
}
#else
-static inline void map_cache(void) { }
-static inline void unmap_cache(void) { }
+static inline void map_cache(void)
+{
+}
+static inline void unmap_cache(void)
+{
+}
#endif
/* This function's behavior must exactly match that
* in uClibc/ldso/ldso/dl-elf.c */
-static void search_for_named_library(char *name, char *result, const char *path_list)
+static void search_for_named_library(char *name, char *result,
+ const char *path_list)
{
int i, count = 1;
char *path, *path_n;
exit(EXIT_FAILURE);
}
/* Eliminate all double //s */
- path_n=path;
- while((path_n=strstr(path_n, "//"))) {
+ path_n = path;
+ while ((path_n = strstr(path_n, "//"))) {
i = strlen(path_n);
- memmove(path_n, path_n+1, i-1);
- *(path_n + i - 1)='\0';
+ memmove(path_n, path_n + 1, i - 1);
+ *(path_n + i - 1) = '\0';
}
/* Replace colons with zeros in path_list and count them */
- for(i=strlen(path); i > 0; i--) {
- if (path[i]==':') {
- path[i]=0;
+ for (i = strlen(path); i > 0; i--) {
+ if (path[i] == ':') {
+ path[i] = 0;
count++;
}
}
strcpy(result, path_n);
strcat(result, "/");
strcat(result, name);
- if (stat (result, &filestat) == 0 && filestat.st_mode & S_IRUSR) {
+ if (stat(result, &filestat) == 0 && filestat.st_mode & S_IRUSR) {
free(path);
return;
}
*result = '\0';
}
-void locate_library_file(ElfW(Ehdr)* ehdr, ElfW(Dyn)* dynamic, int is_suid, struct library *lib)
+void locate_library_file(ElfW(Ehdr) *ehdr, ElfW(Dyn) *dynamic, int is_suid,
+ struct library *lib)
{
char *buf;
char *path;
struct stat filestat;
/* If this is a fully resolved name, our job is easy */
- if (stat (lib->name, &filestat) == 0) {
+ if (stat(lib->name, &filestat) == 0) {
lib->path = strdup(lib->name);
return;
}
- /* We need some elbow room here. Make some room...*/
+ /* We need some elbow room here. Make some room... */
buf = malloc(1024);
if (!buf) {
fprintf(stderr, "Out of memory!\n");
/* Next check LD_{ELF_}LIBRARY_PATH if specified and allowed.
* Since this app doesn't actually run an executable I will skip
* the suid check, and just use LD_{ELF_}LIBRARY_PATH if set */
- if (is_suid==1)
+ if (is_suid == 1)
path = NULL;
else
path = getenv("LD_LIBRARY_PATH");
return;
}
}
-
#ifdef __LDSO_CACHE_SUPPORT__
if (cache_addr != NULL && cache_addr != (caddr_t) - 1) {
int i;
header_t *header = (header_t *) cache_addr;
libentry_t *libent = (libentry_t *) & header[1];
- char *strs = (char *) &libent[header->nlibs];
+ char *strs = (char *)&libent[header->nlibs];
for (i = 0; i < header->nlibs; i++) {
if ((libent[i].flags == LIB_ELF ||
- libent[i].flags == LIB_ELF_LIBC0 ||
- libent[i].flags == LIB_ELF_LIBC5) &&
- strcmp(lib->name, strs + libent[i].sooffset) == 0) {
+ libent[i].flags == LIB_ELF_LIBC0 ||
+ libent[i].flags == LIB_ELF_LIBC5) &&
+ strcmp(lib->name, strs + libent[i].sooffset) == 0)
+ {
lib->path = strdup(strs + libent[i].liboffset);
return;
}
}
#endif
-
/* Next look for libraries wherever the shared library
* loader was installed -- this is usually where we
* should find things... */
/* Lastly, search the standard list of paths for the library.
This list must exactly match the list in uClibc/ldso/ldso/dl-elf.c */
- path = UCLIBC_RUNTIME_PREFIX "lib:"
- UCLIBC_RUNTIME_PREFIX "usr/lib"
+ path = UCLIBC_RUNTIME_PREFIX "lib:" UCLIBC_RUNTIME_PREFIX "usr/lib"
#ifndef __LDSO_CACHE_SUPPORT__
- ":" UCLIBC_RUNTIME_PREFIX "usr/X11R6/lib"
+ ":" UCLIBC_RUNTIME_PREFIX "usr/X11R6/lib"
#endif
- ;
+ ;
search_for_named_library(lib->name, buf, path);
if (*buf != '\0') {
lib->path = buf;
}
}
-static int add_library(ElfW(Ehdr)* ehdr, ElfW(Dyn)* dynamic, int is_setuid, char *s)
+static int add_library(ElfW(Ehdr) *ehdr, ElfW(Dyn) *dynamic, int is_setuid, char *s)
{
char *tmp, *tmp1, *tmp2;
- struct library *cur, *newlib=lib_list;
+ struct library *cur, *newlib = lib_list;
if (!s || !strlen(s))
return 1;
}
/* We add ldso elsewhere */
- if (interpreter_already_found && (tmp=strrchr(interp_name, '/')) != NULL)
- {
+ if (interpreter_already_found && (tmp = strrchr(interp_name, '/')) != NULL) {
int len = strlen(interp_dir);
- if (strcmp(s, interp_name+1+len)==0)
+ if (strcmp(s, interp_name + 1 + len) == 0)
return 1;
}
- for (cur = lib_list; cur; cur=cur->next) {
+ for (cur = lib_list; cur; cur = cur->next) {
/* Check if this library is already in the list */
tmp1 = tmp2 = cur->name;
while (*tmp1) {
tmp2 = tmp1 + 1;
tmp1++;
}
- if(strcmp(tmp2, s)==0) {
+ if (strcmp(tmp2, s) == 0) {
//printf("find_elf_interpreter is skipping '%s' (already in list)\n", cur->name);
return 0;
}
newlib = malloc(sizeof(struct library));
if (!newlib)
return 1;
- newlib->name = malloc(strlen(s)+1);
+ newlib->name = malloc(strlen(s) + 1);
strcpy(newlib->name, s);
newlib->resolved = 0;
newlib->path = NULL;
if (!lib_list) {
lib_list = newlib;
} else {
- for (cur = lib_list; cur->next; cur=cur->next); /* nothing */
+ for (cur = lib_list; cur->next; cur = cur->next) ; /* nothing */
cur->next = newlib;
}
return 0;
}
-static void find_needed_libraries(ElfW(Ehdr)* ehdr,
- ElfW(Dyn)* dynamic, int is_setuid)
+static void find_needed_libraries(ElfW(Ehdr) *ehdr, ElfW(Dyn) *dynamic, int is_setuid)
{
- ElfW(Dyn) *dyns;
+ ElfW(Dyn) *dyns;
- for (dyns=dynamic; byteswap_to_host(dyns->d_tag)!=DT_NULL; ++dyns) {
+ for (dyns = dynamic; byteswap_to_host(dyns->d_tag) != DT_NULL; ++dyns) {
if (DT_NEEDED == byteswap_to_host(dyns->d_tag)) {
char *strtab;
strtab = (char *)elf_find_dynamic(DT_STRTAB, dynamic, ehdr, 0);
- add_library(ehdr, dynamic, is_setuid,
- (char*)strtab + byteswap_to_host(dyns->d_un.d_val));
+ add_library(ehdr, dynamic, is_setuid, (char *)strtab + byteswap_to_host(dyns->d_un.d_val));
}
}
}
-static struct library * find_elf_interpreter(ElfW(Ehdr)* ehdr)
+static struct library *find_elf_interpreter(ElfW(Ehdr) *ehdr)
{
ElfW(Phdr) *phdr;
return NULL;
phdr = elf_find_phdr_type(PT_INTERP, ehdr);
if (phdr) {
- struct library *cur, *newlib=NULL;
- char *s = (char*)ehdr + byteswap_to_host(phdr->p_offset);
+ struct library *cur, *newlib = NULL;
+ char *s = (char *)ehdr + byteswap_to_host(phdr->p_offset);
char *tmp, *tmp1;
interp_name = strdup(s);
tmp1 = tmp + 1;
tmp++;
}
- for (cur = lib_list; cur; cur=cur->next) {
+ for (cur = lib_list; cur; cur = cur->next) {
/* Check if this library is already in the list */
- if(strcmp(cur->name, tmp1)==0) {
+ if (strcmp(cur->name, tmp1) == 0) {
//printf("find_elf_interpreter is replacing '%s' (already in list)\n", cur->name);
newlib = cur;
free(newlib->name);
newlib = malloc(sizeof(struct library));
if (!newlib)
return NULL;
- newlib->name = malloc(strlen(s)+1);
+ newlib->name = malloc(strlen(s) + 1);
strcpy(newlib->name, s);
newlib->path = strdup(newlib->name);
newlib->resolved = 1;
if (!lib_list) {
lib_list = newlib;
} else {
- for (cur = lib_list; cur->next; cur=cur->next); /* nothing */
+ for (cur = lib_list; cur->next; cur = cur->next) ; /* nothing */
cur->next = newlib;
}
#endif
/*
#warning "There may be two warnings here about vfork() clobbering, ignore them"
*/
-int find_dependancies(char* filename)
+int find_dependancies(char *filename)
{
int is_suid = 0;
FILE *thefile;
return -1;
}
- if ((size_t)statbuf.st_size < sizeof(ElfW(Ehdr)))
+ if ((size_t) statbuf.st_size < sizeof(ElfW(Ehdr)))
goto foo;
if (!S_ISREG(statbuf.st_mode))
goto foo;
/* mmap the file to make reading stuff from it effortless */
- ehdr = (ElfW(Ehdr) *)mmap(0, statbuf.st_size,
- PROT_READ|PROT_WRITE, MAP_PRIVATE, fileno(thefile), 0);
+ ehdr = mmap(0, statbuf.st_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fileno(thefile), 0);
if (ehdr == MAP_FAILED) {
fclose(thefile);
fprintf(stderr, "Out of memory!\n");
interp = find_elf_interpreter(ehdr);
#ifdef __LDSO_LDD_SUPPORT__
- if (interp && \
- (ehdr->e_type == ET_EXEC || ehdr->e_type == ET_DYN) && \
- ehdr->e_ident[EI_CLASS] == ELFCLASSM && ehdr->e_ident[EI_DATA] == ELFDATAM && \
- ehdr->e_ident[EI_VERSION] == EV_CURRENT && MATCH_MACHINE(ehdr->e_machine))
+ if (interp
+ && (ehdr->e_type == ET_EXEC || ehdr->e_type == ET_DYN)
+ && ehdr->e_ident[EI_CLASS] == ELFCLASSM
+ && ehdr->e_ident[EI_DATA] == ELFDATAM
+ && 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)) {
pid_t pid;
int status;
- static const char * const environment[] = {
+ static const char *const environment[] = {
"PATH=/usr/bin:/bin:/usr/sbin:/sbin",
"SHELL=/bin/sh",
"LD_TRACE_LOADED_OBJECTS=1",
/* Wait till it returns */
waitpid(pid, &status, 0);
- if (WIFEXITED(status) && WEXITSTATUS(status)==0) {
+ if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
return 1;
}
dynsec = elf_find_section_type(SHT_DYNAMIC, ehdr);
if (dynsec) {
- dynamic = (ElfW(Dyn)*)(byteswap_to_host(dynsec->sh_offset) + (char *)ehdr);
+ dynamic = (ElfW(Dyn) *) (byteswap_to_host(dynsec->sh_offset) + (char *)ehdr);
find_needed_libraries(ehdr, dynamic, is_suid);
}
return 0;
}
-int main( int argc, char** argv)
+int main(int argc, char **argv)
{
int multi = 0;
int got_em_all = 1;
while (--argc > 0) {
++argv;
- if(strcmp(*argv, "--")==0) {
+ if (strcmp(*argv, "--") == 0) {
/* Ignore "--" */
continue;
}
map_cache();
- if (find_dependancies(filename)!=0)
+ if (find_dependancies(filename) != 0)
continue;
while (got_em_all) {
got_em_all = 0;
/* Keep walking the list till everybody is resolved */
- for (cur = lib_list; cur; cur=cur->next) {
+ for (cur = lib_list; cur; cur = cur->next) {
if (cur->resolved == 0 && cur->path) {
got_em_all = 1;
printf("checking sub-depends for '%s'\n", cur->path);
/* Print the list */
got_em_all = 0;
- for (cur = lib_list; cur; cur=cur->next) {
+ for (cur = lib_list; cur; cur = cur->next) {
got_em_all = 1;
printf("\t%s => %s (0x00000000)\n", cur->name, cur->path);
}
- if (interp_name && interpreter_already_found==1)
+ if (interp_name && interpreter_already_found == 1)
printf("\t%s => %s (0x00000000)\n", interp_name, interp_name);
else
printf("\tnot a dynamic executable\n");
- for (cur = lib_list; cur; cur=cur->next) {
+ for (cur = lib_list; cur; cur = cur->next) {
free(cur->name);
cur->name = NULL;
if (cur->path && cur->path != not_found) {
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