emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Hurd compat fixes. Mostly dealing with absent PATH_MAX

Browse Source 
Signed-off-by: Jérémie Koenig <jk@jk.fr.eu.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Jérémie Koenig 2010-03-26 19:08:53 +01:00 committed by Denys Vlasenko
parent 35fdb1bc9c
commit fbedacfc8c
13 changed files with 85 additions and 61 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
coreutils/realpath.c
View File

@ -17,30 +17,20 @@ int realpath_main(int argc UNUSED_PARAM, char **argv)
{
int retval = EXIT_SUCCESS;
#if PATH_MAX > (BUFSIZ+1)
RESERVE_CONFIG_BUFFER(resolved_path, PATH_MAX);
# define resolved_path_MUST_FREE 1
#else
#define resolved_path bb_common_bufsiz1
# define resolved_path_MUST_FREE 0
#endif
if (!*++argv) {
bb_show_usage();
}
do {
if (realpath(*argv, resolved_path) != NULL) {
char *resolved_path = xmalloc_realpath(*argv);
if (resolved_path != NULL) {
puts(resolved_path);
free(resolved_path);
} else {
retval = EXIT_FAILURE;
bb_simple_perror_msg(*argv);
}
} while (*++argv);
#if ENABLE_FEATURE_CLEAN_UP && resolved_path_MUST_FREE
RELEASE_CONFIG_BUFFER(resolved_path);
#endif
fflush_stdout_and_exit(retval);
}

33
debianutils/start_stop_daemon.c
View File

@ -89,16 +89,17 @@ enum {
#define TEST (option_mask32 & OPT_TEST)
struct globals {
struct pid_list *found;
struct pid_list *found_procs;
char *userspec;
char *cmdname;
char *execname;
char *pidfile;
char *execname_cmpbuf;
unsigned execname_sizeof;
int user_id;
smallint signal_nr;
} FIX_ALIASING;
#define G (*(struct globals*)&bb_common_bufsiz1)
#define found (G.found )
#define userspec (G.userspec )
#define cmdname (G.cmdname )
#define execname (G.execname )
@ -118,7 +119,7 @@ struct globals {
static int pid_is_exec(pid_t pid)
{
struct stat st;
char buf[sizeof("/proc//exe") + sizeof(int)*3];
char buf[sizeof("/proc/%u/exe") + sizeof(int)*3];
sprintf(buf, "/proc/%u/exe", (unsigned)pid);
if (stat(buf, &st) < 0)
@ -133,13 +134,13 @@ static int pid_is_exec(pid_t pid)
static int pid_is_exec(pid_t pid)
{
ssize_t bytes;
char buf[PATH_MAX];
char buf[sizeof("/proc/%u/cmdline") + sizeof(int)*3];
sprintf(buf, "/proc/%u/cmdline", (unsigned)pid);
bytes = open_read_close(buf, buf, sizeof(buf) - 1);
bytes = open_read_close(buf, G.execname_cmpbuf, G.execname_sizeof);
if (bytes > 0) {
buf[bytes] = '\0';
return strcmp(buf, execname) == 0;
G.execname_cmpbuf[bytes] = '\0';
return strcmp(execname, G.execname_cmpbuf) == 0;
}
return 0;
}
@ -194,9 +195,9 @@ static void check(int pid)
return;
}
p = xmalloc(sizeof(*p));
p->next = found;
p->next = G.found_procs;
p->pid = pid;
found = p;
G.found_procs = p;
}
static void do_pidfile(void)
@ -266,13 +267,13 @@ static int do_stop(void)
bb_error_msg_and_die("internal error, please report");
}
if (!found) {
if (!G.found_procs) {
if (!QUIET)
printf("no %s found; none killed\n", what);
killed = -1;
goto ret;
}
for (p = found; p; p = p->next) {
for (p = G.found_procs; p; p = p->next) {
if (TEST || kill(p->pid, signal_nr) == 0) {
killed++;
} else {
@ -282,7 +283,7 @@ static int do_stop(void)
}
if (!QUIET && killed) {
printf("stopped %s (pid", what);
for (p = found; p; p = p->next)
for (p = G.found_procs; p; p = p->next)
if (p->pid)
printf(" %u", (unsigned)p->pid);
puts(")");
@ -365,6 +366,10 @@ int start_stop_daemon_main(int argc UNUSED_PARAM, char **argv)
startas = execname;
if (!execname) /* in case -a is given and -x is not */
execname = startas;
if (execname) {
G.execname_sizeof = strlen(execname) + 1;
G.execname_cmpbuf = xmalloc(G.execname_sizeof + 1);
}
// IF_FEATURE_START_STOP_DAEMON_FANCY(
// if (retry_arg)
@ -386,9 +391,9 @@ int start_stop_daemon_main(int argc UNUSED_PARAM, char **argv)
return (opt & OPT_OKNODO) ? 0 : (i <= 0);
}
if (found) {
if (G.found_procs) {
if (!QUIET)
printf("%s is already running\n%u\n", execname, (unsigned)found->pid);
printf("%s is already running\n%u\n", execname, (unsigned)G.found_procs->pid);
return !(opt & OPT_OKNODO);
}

2
include/libbb.h
View File

@ -339,7 +339,7 @@ void xmove_fd(int, int) FAST_FUNC;
DIR *xopendir(const char *path) FAST_FUNC;
DIR *warn_opendir(const char *path) FAST_FUNC;
/* UNUSED: char *xmalloc_realpath(const char *path) FAST_FUNC RETURNS_MALLOC; */
char *xmalloc_realpath(const char *path) FAST_FUNC RETURNS_MALLOC;
char *xmalloc_readlink(const char *path) FAST_FUNC RETURNS_MALLOC;
char *xmalloc_readlink_or_warn(const char *path) FAST_FUNC RETURNS_MALLOC;
/* !RETURNS_MALLOC: it's a realloc-like function */

6
libbb/safe_gethostname.c
View File

@ -59,8 +59,12 @@ char* FAST_FUNC safe_gethostname(void)
*/
char* FAST_FUNC safe_getdomainname(void)
{
/* The field domainname of struct utsname is Linux specific. */
#if defined(__linux__)
struct utsname uts;
uname(&uts);
return xstrndup(!uts.domainname[0] ? "?" : uts.domainname, sizeof(uts.domainname));
#else
return xstrdup("?");
#endif
}

10
libbb/xconnect.c
View File

@ -21,6 +21,8 @@ int FAST_FUNC setsockopt_broadcast(int fd)
{
return setsockopt(fd, SOL_SOCKET, SO_BROADCAST, &const_int_1, sizeof(const_int_1));
}
#ifdef SO_BINDTODEVICE
int FAST_FUNC setsockopt_bindtodevice(int fd, const char *iface)
{
int r;
@ -36,6 +38,14 @@ int FAST_FUNC setsockopt_bindtodevice(int fd, const char *iface)
bb_perror_msg("can't bind to interface %s", iface);
return r;
}
#else
int FAST_FUNC setsockopt_bindtodevice(int fd UNUSED_PARAM,
const char *iface UNUSED_PARAM)
{
bb_error_msg("SO_BINDTODEVICE is not supported on this system");
return -1;
}
#endif
len_and_sockaddr* FAST_FUNC get_sock_lsa(int fd)
{

6
libbb/xreadlink.c
View File

@ -100,18 +100,16 @@ char* FAST_FUNC xmalloc_readlink_or_warn(const char *path)
return buf;
}
/* UNUSED */
#if 0
char* FAST_FUNC xmalloc_realpath(const char *path)
{
#if defined(__GLIBC__) && !defined(__UCLIBC__)
/* glibc provides a non-standard extension */
/* new: POSIX.1-2008 specifies this behavior as well */
return realpath(path, NULL);
#else
char buf[PATH_MAX+1];
/* on error returns NULL (xstrdup(NULL) ==NULL) */
/* on error returns NULL (xstrdup(NULL) == NULL) */
return xstrdup(realpath(path, buf));
#endif
}
#endif

22
scripts/basic/docproc.c
View File

@ -79,7 +79,9 @@ void exec_kernel_doc(char **svec)
{
pid_t pid;
int ret;
char real_filename[PATH_MAX + 1];
char *real_filename;
int rflen;
/* Make sure output generated so far are flushed */
fflush(stdout);
switch(pid=fork()) {
@ -87,10 +89,11 @@ void exec_kernel_doc(char **svec)
perror("fork");
exit(1);
case 0:
memset(real_filename, 0, sizeof(real_filename));
strncat(real_filename, getenv("SRCTREE"), PATH_MAX);
strncat(real_filename, KERNELDOCPATH KERNELDOC,
PATH_MAX - strlen(real_filename));
rflen = strlen(getenv("SRCTREE"));
rflen += strlen(KERNELDOCPATH KERNELDOC);
real_filename = alloca(rflen + 1);
strcpy(real_filename, getenv("SRCTREE"));
strcat(real_filename, KERNELDOCPATH KERNELDOC);
execvp(real_filename, svec);
fprintf(stderr, "exec ");
perror(real_filename);
@ -166,11 +169,10 @@ void find_export_symbols(char * filename)
struct symfile *sym;
char line[MAXLINESZ];
if (filename_exist(filename) == NULL) {
char real_filename[PATH_MAX + 1];
memset(real_filename, 0, sizeof(real_filename));
strncat(real_filename, getenv("SRCTREE"), PATH_MAX);
strncat(real_filename, filename,
PATH_MAX - strlen(real_filename));
int rflen = strlen(getenv("SRCTREE")) + strlen(filename);
char *real_filename = alloca(rflen + 1);
strcpy(real_filename, getenv("SRCTREE"));
strcat(real_filename, filename);
sym = add_new_file(filename);
fp = fopen(real_filename, "r");
if (fp == NULL)

4
scripts/basic/fixdep.c
View File

@ -203,7 +203,7 @@ void clear_config(void)
*/
void use_config(char *m, int slen)
{
char s[PATH_MAX];
char *s = alloca(slen+1);
char *p;
if (is_defined_config(m, slen))
@ -310,7 +310,7 @@ void parse_dep_file(void *map, size_t len)
char *m = map;
char *end = m + len;
char *p;
char s[PATH_MAX];
char *s = alloca(len);
p = memchr(m, ':', len);
if (!p) {

3
scripts/kconfig/confdata.c
View File

@ -70,12 +70,13 @@ static char *conf_expand_value(const char *in)
char *conf_get_default_confname(void)
{
struct stat buf;
static char fullname[PATH_MAX+1];
static char *fullname = NULL;
char *env, *name;
name = conf_expand_value(conf_defname);
env = getenv(SRCTREE);
if (env) {
fullname = realloc(fullname, strlen(env) + strlen(name) + 2);
sprintf(fullname, "%s/%s", env, name);
if (!stat(fullname, &buf))
return fullname;

2
scripts/kconfig/mconf.c
View File

@ -258,7 +258,7 @@ search_help[] = N_(
static char buf[4096], *bufptr = buf;
static char input_buf[4096];
static char filename[PATH_MAX+1] = ".config";
static const char filename[] = ".config";
static char *args[1024], **argptr = args;
static int indent;
static struct termios ios_org;

3
scripts/kconfig/zconf.l
View File

@ -265,13 +265,14 @@ static void zconf_endhelp(void)
*/
FILE *zconf_fopen(const char *name)
{
char *env, fullname[PATH_MAX+1];
char *env;
FILE *f;
f = fopen(name, "r");
if (!f && name[0] != '/') {
env = getenv(SRCTREE);
if (env) {
char *fullname = alloca(strlen(env) + strlen(name) + 2);
sprintf(fullname, "%s/%s", env, name);
f = fopen(fullname, "r");
}

6
scripts/kconfig/zconf.y
View File

@ -14,8 +14,6 @@
#define LKC_DIRECT_LINK
#include "lkc.h"
#include "zconf.hash.c"
#define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt)
#define PRINTD 0x0001
@ -99,6 +97,10 @@ static struct menu *current_menu, *current_entry;
menu_end_menu();
} if_entry menu_entry choice_entry
%{
#include "zconf.hash.c"
%}
%%
input: stmt_list;

33
util-linux/umount.c
View File

@ -39,6 +39,10 @@
# define MS_RELATIME (1 << 21)
#endif
#include "libbb.h"
#ifndef PATH_MAX
# define PATH_MAX (4*1024)
#endif
#if defined(__dietlibc__)
/* 16.12.2006, Sampo Kellomaki (sampo@iki.fi)
@ -69,7 +73,7 @@ int umount_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int umount_main(int argc UNUSED_PARAM, char **argv)
{
int doForce;
char *const path = xmalloc(PATH_MAX + 2); /* to save stack */
char *const buf = xmalloc(PATH_MAX * 2 + 128); /* to save stack */
struct mntent me;
FILE *fp;
char *fstype = NULL;
@ -100,7 +104,7 @@ int umount_main(int argc UNUSED_PARAM, char **argv)
if (opt & OPT_ALL)
bb_error_msg_and_die("can't open '%s'", bb_path_mtab_file);
} else {
while (getmntent_r(fp, &me, path, PATH_MAX)) {
while (getmntent_r(fp, &me, buf, PATH_MAX * 2 + 128)) {
/* Match fstype if passed */
if (!match_fstype(&me, fstype))
continue;
@ -124,10 +128,11 @@ int umount_main(int argc UNUSED_PARAM, char **argv)
for (;;) {
int curstat;
char *zapit = *argv;
char *path;
// Do we already know what to umount this time through the loop?
if (m)
safe_strncpy(path, m->dir, PATH_MAX);
path = xstrdup(m->dir);
// For umount -a, end of mtab means time to exit.
else if (opt & OPT_ALL)
break;
@ -136,10 +141,12 @@ int umount_main(int argc UNUSED_PARAM, char **argv)
if (!zapit)
break;
argv++;
realpath(zapit, path);
for (m = mtl; m; m = m->next)
if (!strcmp(path, m->dir) || !strcmp(path, m->device))
break;
path = xmalloc_realpath(zapit);
if (path) {
for (m = mtl; m; m = m->next)
if (strcmp(path, m->dir) == 0 || strcmp(path, m->device) == 0)
break;
}
}
// If we couldn't find this sucker in /etc/mtab, punt by passing our
// command line argument straight to the umount syscall. Otherwise,
@ -181,9 +188,13 @@ int umount_main(int argc UNUSED_PARAM, char **argv)
// Find next matching mtab entry for -a or umount /dev
// Note this means that "umount /dev/blah" will unmount all instances
// of /dev/blah, not just the most recent.
if (m) while ((m = m->next) != NULL)
if ((opt & OPT_ALL) || !strcmp(path, m->device))
break;
if (m) {
while ((m = m->next) != NULL)
// NB: if m is non-NULL, path is non-NULL as well
if ((opt & OPT_ALL) || strcmp(path, m->device) == 0)
break;
}
free(path);
}
// Free mtab list if necessary
@ -195,7 +206,7 @@ int umount_main(int argc UNUSED_PARAM, char **argv)
free(mtl);
mtl = m;
}
free(path);
free(buf);
}
return status;