mirror of
https://github.com/sheumann/hush.git
synced 2024-12-25 18:33:06 +00:00
bb_full_fd_action: remove potential xmalloc from NOFORK path
cat: stop using stdio.h opens libbb: introduce & use open[3]_or_warn function old new delta open3_or_warn - 54 +54 bb_cat 115 144 +29 open_or_warn - 25 +25 unlzma 2404 2412 +8 chattr_main 334 339 +5 xstrtoul_range_sfx 251 255 +4 telnet_main 1514 1510 -4 static.opt 4 - -4 qgravechar 122 118 -4 fuser_add_pid 61 54 -7 fuser_add_inode 154 147 -7 writeFileToTarball 1542 1534 -8 refresh 1156 1148 -8 do_show 856 846 -10 read_leases 212 200 -12 setup_redirects 236 222 -14 iproute_list_or_flush 1582 1568 -14 read_config 427 411 -16 write_leases 284 264 -20 hash_file 338 318 -20 copy_file 1760 1740 -20 do_iproute 2610 2588 -22 bb_full_fd_action 320 269 -51 open_to_or_warn 103 49 -54 fuser_main 1660 1596 -64 .rodata 131160 131096 -64 ------------------------------------------------------------------------------ (add/remove: 2/1 grow/shrink: 4/19 up/down: 125/-423) Total: -298 bytes
This commit is contained in:
Denis Vlasenko
parent
d7c8196c1b
commit
50f7f446ec
@ -20,16 +20,11 @@ enum {
|
||||
static
|
||||
int open_to_or_warn(int to_fd, const char *filename, int flags, int mode)
|
||||
{
|
||||
int fd = open(filename, flags, mode);
|
||||
int fd = open3_or_warn(filename, flags, mode);
|
||||
if (fd < 0) {
|
||||
bb_perror_msg("%s", filename);
|
||||
return 1;
|
||||
}
|
||||
if (fd != to_fd) {
|
||||
if (dup2(fd, to_fd) < 0)
|
||||
bb_perror_msg_and_die("cannot dup");
|
||||
close(fd);
|
||||
}
|
||||
xmove_fd(fd, to_fd);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
@ -440,9 +440,8 @@ static int writeFileToTarball(const char *fileName, struct stat *statbuf,
|
||||
/* Is this a regular file? */
|
||||
if (tbInfo->hlInfo == NULL && S_ISREG(statbuf->st_mode)) {
|
||||
/* open the file we want to archive, and make sure all is well */
|
||||
inputFileFd = open(fileName, O_RDONLY);
|
||||
inputFileFd = open_or_warn(fileName, O_RDONLY);
|
||||
if (inputFileFd < 0) {
|
||||
bb_perror_msg("%s: cannot open", fileName);
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
@ -455,7 +454,7 @@ static int writeFileToTarball(const char *fileName, struct stat *statbuf,
|
||||
/* If it was a regular file, write out the body */
|
||||
if (inputFileFd >= 0) {
|
||||
size_t readSize;
|
||||
/* Wwrite the file to the archive. */
|
||||
/* Write the file to the archive. */
|
||||
/* We record size into header first, */
|
||||
/* and then write out file. If file shrinks in between, */
|
||||
/* tar will be corrupted. So we don't allow for that. */
|
||||
|
||||
@ -19,18 +19,21 @@ int bb_cat(char **argv)
|
||||
{
|
||||
static const char *const argv_dash[] = { "-", NULL };
|
||||
|
||||
FILE *f;
|
||||
int fd;
|
||||
int retval = EXIT_SUCCESS;
|
||||
|
||||
if (!*argv)
|
||||
argv = (char**) &argv_dash;
|
||||
|
||||
do {
|
||||
f = fopen_or_warn_stdin(*argv);
|
||||
if (f) {
|
||||
fd = STDIN_FILENO;
|
||||
if (!LONE_DASH(*argv))
|
||||
fd = open_or_warn(*argv, O_RDONLY);
|
||||
if (fd >= 0) {
|
||||
/* This is not an xfunc - never exits */
|
||||
off_t r = bb_copyfd_eof(fileno(f), STDOUT_FILENO);
|
||||
fclose_if_not_stdin(f);
|
||||
off_t r = bb_copyfd_eof(fd, STDOUT_FILENO);
|
||||
if (fd != STDIN_FILENO)
|
||||
close(fd);
|
||||
if (r >= 0)
|
||||
continue;
|
||||
}
|
||||
|
||||
@ -30,7 +30,7 @@ static int convert(char *fn)
|
||||
/*
|
||||
The file is then created with mode read/write and
|
||||
permissions 0666 for glibc 2.0.6 and earlier or
|
||||
0600 for glibc 2.0.7 and later.
|
||||
0600 for glibc 2.0.7 and later.
|
||||
*/
|
||||
snprintf(bb_common_bufsiz1, sizeof(bb_common_bufsiz1), "%sXXXXXX", fn);
|
||||
/*
|
||||
@ -38,8 +38,8 @@ static int convert(char *fn)
|
||||
hold the full path. However if the output is truncated the
|
||||
subsequent call to mkstemp would fail.
|
||||
*/
|
||||
if ((i = mkstemp(&bb_common_bufsiz1[0])) == -1
|
||||
|| chmod(bb_common_bufsiz1, 0600) == -1) {
|
||||
i = mkstemp(&bb_common_bufsiz1[0]);
|
||||
if (i == -1 || chmod(bb_common_bufsiz1, 0600) == -1) {
|
||||
bb_perror_nomsg_and_die();
|
||||
}
|
||||
out = fdopen(i, "w+");
|
||||
|
||||
@ -38,9 +38,8 @@ static uint8_t *hash_file(const char *filename, hash_algo_t hash_algo)
|
||||
|
||||
src_fd = STDIN_FILENO;
|
||||
if (NOT_LONE_DASH(filename)) {
|
||||
src_fd = open(filename, O_RDONLY);
|
||||
src_fd = open_or_warn(filename, O_RDONLY);
|
||||
if (src_fd < 0) {
|
||||
bb_perror_msg("%s", filename);
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
@ -396,7 +396,6 @@ static void load_fs_info(const char *filename)
|
||||
|
||||
f = fopen_or_warn(filename, "r");
|
||||
if (f == NULL) {
|
||||
/*bb_perror_msg("WARNING: cannot open %s", filename);*/
|
||||
return;
|
||||
}
|
||||
while (1) {
|
||||
|
||||
@ -288,6 +288,8 @@ void xunlink(const char *pathname);
|
||||
void xstat(const char *pathname, struct stat *buf);
|
||||
int xopen(const char *pathname, int flags);
|
||||
int xopen3(const char *pathname, int flags, int mode);
|
||||
int open_or_warn(const char *pathname, int flags);
|
||||
int open3_or_warn(const char *pathname, int flags, int mode);
|
||||
off_t xlseek(int fd, off_t offset, int whence);
|
||||
off_t fdlength(int fd);
|
||||
|
||||
|
||||
@ -217,9 +217,8 @@ int copy_file(const char *source, const char *dest, int flags)
|
||||
add_to_ino_dev_hashtable(&source_stat, dest);
|
||||
}
|
||||
|
||||
src_fd = open(source, O_RDONLY);
|
||||
if (src_fd == -1) {
|
||||
bb_perror_msg("cannot open '%s'", source);
|
||||
src_fd = open_or_warn(source, O_RDONLY);
|
||||
if (src_fd < 0) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
@ -237,9 +236,8 @@ int copy_file(const char *source, const char *dest, int flags)
|
||||
return ovr;
|
||||
}
|
||||
/* It shouldn't exist. If it exists, do not open (symlink attack?) */
|
||||
dst_fd = open(dest, O_WRONLY|O_CREAT|O_EXCL, source_stat.st_mode);
|
||||
if (dst_fd == -1) {
|
||||
bb_perror_msg("cannot open '%s'", dest);
|
||||
dst_fd = open3_or_warn(dest, O_WRONLY|O_CREAT|O_EXCL, source_stat.st_mode);
|
||||
if (dst_fd < 0) {
|
||||
close(src_fd);
|
||||
return -1;
|
||||
}
|
||||
|
||||
@ -14,14 +14,13 @@
|
||||
#define BUFSIZ 4096
|
||||
#endif
|
||||
|
||||
/* Used by NOFORK applets (e.g. cat) - must be very careful
|
||||
* when calling xfuncs, allocating memory, with signals, termios, etc... */
|
||||
/* Used by NOFORK applets (e.g. cat) - must not use xmalloc */
|
||||
|
||||
static off_t bb_full_fd_action(int src_fd, int dst_fd, off_t size)
|
||||
{
|
||||
int status = -1;
|
||||
off_t total = 0;
|
||||
RESERVE_CONFIG_BUFFER(buffer, BUFSIZ);
|
||||
char buffer[BUFSIZ];
|
||||
|
||||
if (src_fd < 0)
|
||||
goto out;
|
||||
@ -63,7 +62,6 @@ static off_t bb_full_fd_action(int src_fd, int dst_fd, off_t size)
|
||||
}
|
||||
}
|
||||
out:
|
||||
RELEASE_CONFIG_BUFFER(buffer);
|
||||
return status ? -1 : total;
|
||||
}
|
||||
|
||||
|
||||
@ -11,7 +11,7 @@
|
||||
* is a command line arg. Since often that arg is '-' (meaning stdin),
|
||||
* we avoid testing everywhere by consolidating things in this routine.
|
||||
*
|
||||
* Note: We also consider "" to main stdin (for 'cmp' at least).
|
||||
* Note: we also consider "" to mean stdin (for 'cmp' at least).
|
||||
*/
|
||||
|
||||
#include "libbb.h"
|
||||
|
||||
@ -106,31 +106,46 @@ FILE *xfopen(const char *path, const char *mode)
|
||||
{
|
||||
FILE *fp = fopen(path, mode);
|
||||
if (fp == NULL)
|
||||
bb_perror_msg_and_die("%s", path);
|
||||
bb_perror_msg_and_die("cannot open '%s'", path);
|
||||
return fp;
|
||||
}
|
||||
|
||||
// Die if we can't open an existing file and return an fd.
|
||||
int xopen(const char *pathname, int flags)
|
||||
{
|
||||
//if (ENABLE_DEBUG && (flags & O_CREAT))
|
||||
// bb_error_msg_and_die("xopen() with O_CREAT");
|
||||
|
||||
return xopen3(pathname, flags, 0666);
|
||||
}
|
||||
|
||||
// Die if we can't open a new file and return an fd.
|
||||
// Die if we can't open a file and return a fd.
|
||||
int xopen3(const char *pathname, int flags, int mode)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = open(pathname, flags, mode);
|
||||
if (ret < 0) {
|
||||
bb_perror_msg_and_die("%s", pathname);
|
||||
bb_perror_msg_and_die("cannot open '%s'", pathname);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
// Die if we can't open an existing file and return a fd.
|
||||
int xopen(const char *pathname, int flags)
|
||||
{
|
||||
return xopen3(pathname, flags, 0666);
|
||||
}
|
||||
|
||||
// Warn if we can't open a file and return a fd.
|
||||
int open3_or_warn(const char *pathname, int flags, int mode)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = open(pathname, flags, mode);
|
||||
if (ret < 0) {
|
||||
bb_perror_msg("cannot open '%s'", pathname);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
// Warn if we can't open a file and return a fd.
|
||||
int open_or_warn(const char *pathname, int flags)
|
||||
{
|
||||
return open3_or_warn(pathname, flags, 0666);
|
||||
}
|
||||
|
||||
void xunlink(const char *pathname)
|
||||
{
|
||||
if (unlink(pathname))
|
||||
@ -184,6 +199,7 @@ off_t xlseek(int fd, off_t offset, int whence)
|
||||
void die_if_ferror(FILE *fp, const char *fn)
|
||||
{
|
||||
if (ferror(fp)) {
|
||||
/* doesn't set useful errno */
|
||||
bb_error_msg_and_die("%s: I/O error", fn);
|
||||
}
|
||||
}
|
||||
|
||||
@ -114,14 +114,14 @@ static void crondlog(const char *ctl, ...)
|
||||
if (LogFile == 0) {
|
||||
vsyslog(type, fmt, va);
|
||||
} else {
|
||||
#if !ENABLE_DEBUG_CROND_OPTION
|
||||
int logfd = open(LogFile, O_WRONLY | O_CREAT | O_APPEND, 0600);
|
||||
#else
|
||||
int logfd = open3_or_warn(LogFile, O_WRONLY | O_CREAT | O_APPEND, 0600);
|
||||
#endif
|
||||
if (logfd >= 0) {
|
||||
vdprintf(logfd, fmt, va);
|
||||
close(logfd);
|
||||
#if ENABLE_DEBUG_CROND_OPTION
|
||||
} else {
|
||||
bb_perror_msg("can't open log file");
|
||||
#endif
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -281,10 +281,9 @@ static void startlogger(void)
|
||||
else { /* test logfile */
|
||||
int logfd;
|
||||
|
||||
if ((logfd = open(LogFile, O_WRONLY | O_CREAT | O_APPEND, 0600)) >= 0) {
|
||||
logfd = open3_or_warn(LogFile, O_WRONLY | O_CREAT | O_APPEND, 0600);
|
||||
if (logfd >= 0) {
|
||||
close(logfd);
|
||||
} else {
|
||||
bb_perror_msg("failed to open log file '%s': ", LogFile);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
@ -484,10 +484,9 @@ static int rtnl_rtcache_request(struct rtnl_handle *rth, int family)
|
||||
static void iproute_flush_cache(void)
|
||||
{
|
||||
static const char fn[] = "/proc/sys/net/ipv4/route/flush";
|
||||
int flush_fd = open(fn, O_WRONLY);
|
||||
int flush_fd = open_or_warn(fn, O_WRONLY);
|
||||
|
||||
if (flush_fd < 0) {
|
||||
bb_perror_msg("cannot open '%s'", fn);
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
@ -426,10 +426,9 @@ static void do_tunnels_list(struct ip_tunnel_parm *p)
|
||||
int type;
|
||||
struct ip_tunnel_parm p1;
|
||||
char buf[512];
|
||||
FILE *fp = fopen("/proc/net/dev", "r");
|
||||
FILE *fp = fopen_or_warn("/proc/net/dev", "r");
|
||||
|
||||
if (fp == NULL) {
|
||||
bb_perror_msg("fopen");
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
@ -311,9 +311,8 @@ int read_config(const char *file)
|
||||
if (keywords[i].def[0])
|
||||
keywords[i].handler(keywords[i].def, keywords[i].var);
|
||||
|
||||
in = fopen(file, "r");
|
||||
in = fopen_or_warn(file, "r");
|
||||
if (!in) {
|
||||
bb_error_msg("cannot open config file: %s", file);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -360,9 +359,8 @@ void write_leases(void)
|
||||
time_t curr = time(0);
|
||||
unsigned long tmp_time;
|
||||
|
||||
fp = open(server_config.lease_file, O_WRONLY|O_CREAT|O_TRUNC, 0666);
|
||||
fp = open3_or_warn(server_config.lease_file, O_WRONLY|O_CREAT|O_TRUNC, 0666);
|
||||
if (fp < 0) {
|
||||
bb_error_msg("cannot open %s for writing", server_config.lease_file);
|
||||
return;
|
||||
}
|
||||
|
||||
@ -401,9 +399,8 @@ void read_leases(const char *file)
|
||||
unsigned int i = 0;
|
||||
struct dhcpOfferedAddr lease;
|
||||
|
||||
fp = open(file, O_RDONLY);
|
||||
fp = open_or_warn(file, O_RDONLY);
|
||||
if (fp < 0) {
|
||||
bb_error_msg("cannot open %s for reading", file);
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
215
procps/fuser.c
215
procps/fuser.c
@ -34,19 +34,19 @@ static int fuser_option(char *option)
|
||||
{
|
||||
int opt = 0;
|
||||
|
||||
if(!(strlen(option))) return 0;
|
||||
if(option[0] != '-') return 0;
|
||||
if (!option[0])
|
||||
return 0;
|
||||
if (option[0] != '-')
|
||||
return 0;
|
||||
++option;
|
||||
while(*option != '\0') {
|
||||
if(*option == 'm') opt |= FUSER_OPT_MOUNT;
|
||||
else if(*option == 'k') opt |= FUSER_OPT_KILL;
|
||||
else if(*option == 's') opt |= FUSER_OPT_SILENT;
|
||||
else if(*option == '6') opt |= FUSER_OPT_IP6;
|
||||
else if(*option == '4') opt |= FUSER_OPT_IP4;
|
||||
else {
|
||||
bb_error_msg_and_die(
|
||||
"Unsupported option '%c'", *option);
|
||||
}
|
||||
while (*option != '\0') {
|
||||
if (*option == 'm') opt |= FUSER_OPT_MOUNT;
|
||||
else if (*option == 'k') opt |= FUSER_OPT_KILL;
|
||||
else if (*option == 's') opt |= FUSER_OPT_SILENT;
|
||||
else if (*option == '6') opt |= FUSER_OPT_IP6;
|
||||
else if (*option == '4') opt |= FUSER_OPT_IP4;
|
||||
else
|
||||
bb_error_msg_and_die("unsupported option '%c'", *option);
|
||||
++option;
|
||||
}
|
||||
return opt;
|
||||
@ -56,7 +56,8 @@ static int fuser_file_to_dev_inode(const char *filename,
|
||||
dev_t *dev, ino_t *inode)
|
||||
{
|
||||
struct stat f_stat;
|
||||
if((stat(filename, &f_stat)) < 0) return 0;
|
||||
if ((stat(filename, &f_stat)) < 0)
|
||||
return 0;
|
||||
*inode = f_stat.st_ino;
|
||||
*dev = f_stat.st_dev;
|
||||
return 1;
|
||||
@ -68,7 +69,7 @@ static int fuser_find_socket_dev(dev_t *dev)
|
||||
struct stat buf;
|
||||
|
||||
if (fd >= 0 && (fstat(fd, &buf)) == 0) {
|
||||
*dev = buf.st_dev;
|
||||
*dev = buf.st_dev;
|
||||
close(fd);
|
||||
return 1;
|
||||
}
|
||||
@ -80,9 +81,11 @@ static int fuser_parse_net_arg(const char *filename,
|
||||
{
|
||||
char path[sizeof(FUSER_PROC_DIR)+12], tproto[5];
|
||||
|
||||
if((sscanf(filename, "%d/%4s", port, tproto)) != 2) return 0;
|
||||
sprintf(path, "%s/net/%s", FUSER_PROC_DIR, tproto);
|
||||
if((access(path, R_OK)) != 0) return 0;
|
||||
if ((sscanf(filename, "%d/%4s", port, tproto)) != 2)
|
||||
return 0;
|
||||
sprintf(path, FUSER_PROC_DIR "/net/%s", tproto);
|
||||
if ((access(path, R_OK)) != 0)
|
||||
return 0;
|
||||
*proto = xstrdup(tproto);
|
||||
return 1;
|
||||
}
|
||||
@ -91,17 +94,19 @@ static int fuser_add_pid(pid_list *plist, pid_t pid)
|
||||
{
|
||||
pid_list *curr = NULL, *last = NULL;
|
||||
|
||||
if(plist->pid == 0) plist->pid = pid;
|
||||
if (plist->pid == 0)
|
||||
plist->pid = pid;
|
||||
curr = plist;
|
||||
while(curr != NULL) {
|
||||
if(curr->pid == pid) return 1;
|
||||
while (curr != NULL) {
|
||||
if (curr->pid == pid)
|
||||
return 1;
|
||||
last = curr;
|
||||
curr = curr->next;
|
||||
}
|
||||
curr = xmalloc(sizeof(pid_list));
|
||||
curr = xzalloc(sizeof(pid_list));
|
||||
last->next = curr;
|
||||
curr->pid = pid;
|
||||
curr->next = NULL;
|
||||
/*curr->next = NULL;*/
|
||||
return 1;
|
||||
}
|
||||
|
||||
@ -109,21 +114,22 @@ static int fuser_add_inode(inode_list *ilist, dev_t dev, ino_t inode)
|
||||
{
|
||||
inode_list *curr = NULL, *last = NULL;
|
||||
|
||||
if(!ilist->inode && !ilist->dev) {
|
||||
if (!ilist->inode && !ilist->dev) {
|
||||
ilist->dev = dev;
|
||||
ilist->inode = inode;
|
||||
}
|
||||
curr = ilist;
|
||||
while(curr != NULL) {
|
||||
if(curr->inode == inode && curr->dev == dev) return 1;
|
||||
while (curr != NULL) {
|
||||
if (curr->inode == inode && curr->dev == dev)
|
||||
return 1;
|
||||
last = curr;
|
||||
curr = curr->next;
|
||||
}
|
||||
curr = xmalloc(sizeof(inode_list));
|
||||
curr = xzalloc(sizeof(inode_list));
|
||||
last->next = curr;
|
||||
curr->dev = dev;
|
||||
curr->inode = inode;
|
||||
curr->next = NULL;
|
||||
/*curr->next = NULL;*/
|
||||
return 1;
|
||||
}
|
||||
|
||||
@ -134,29 +140,31 @@ static int fuser_scan_proc_net(int opts, const char *proto,
|
||||
char addr[128];
|
||||
ino_t tmp_inode;
|
||||
dev_t tmp_dev;
|
||||
long long uint64_inode;
|
||||
long long uint64_inode;
|
||||
int tmp_port;
|
||||
FILE *f;
|
||||
|
||||
if(!fuser_find_socket_dev(&tmp_dev)) tmp_dev = 0;
|
||||
sprintf(path, "%s/net/%s", FUSER_PROC_DIR, proto);
|
||||
if (!fuser_find_socket_dev(&tmp_dev))
|
||||
tmp_dev = 0;
|
||||
sprintf(path, FUSER_PROC_DIR "/net/%s", proto);
|
||||
|
||||
if (!(f = fopen(path, "r"))) return 0;
|
||||
while(fgets(line, FUSER_MAX_LINE, f)) {
|
||||
if(sscanf(line,
|
||||
"%*d: %64[0-9A-Fa-f]:%x %*x:%*x %*x %*x:%*x "
|
||||
"%*x:%*x %*x %*d %*d %llu",
|
||||
addr, &tmp_port, &uint64_inode) == 3) {
|
||||
if((strlen(addr) == 8) &&
|
||||
(opts & FUSER_OPT_IP6)) continue;
|
||||
else if((strlen(addr) > 8) &&
|
||||
(opts & FUSER_OPT_IP4)) continue;
|
||||
if(tmp_port == port) {
|
||||
f = fopen(path, "r");
|
||||
if (!f)
|
||||
return 0;
|
||||
while (fgets(line, FUSER_MAX_LINE, f)) {
|
||||
if (sscanf(line, "%*d: %64[0-9A-Fa-f]:%x %*x:%*x %*x %*x:%*x "
|
||||
"%*x:%*x %*x %*d %*d %llu",
|
||||
addr, &tmp_port, &uint64_inode) == 3
|
||||
) {
|
||||
if (strlen(addr) == 8 && (opts & FUSER_OPT_IP6))
|
||||
continue;
|
||||
if (strlen(addr) > 8 && (opts & FUSER_OPT_IP4))
|
||||
continue;
|
||||
if (tmp_port == port) {
|
||||
tmp_inode = uint64_inode;
|
||||
fuser_add_inode(ilist, tmp_dev, tmp_inode);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
fclose(f);
|
||||
return 1;
|
||||
@ -168,10 +176,10 @@ static int fuser_search_dev_inode(int opts, inode_list *ilist,
|
||||
inode_list *curr;
|
||||
curr = ilist;
|
||||
|
||||
while(curr) {
|
||||
if((opts & FUSER_OPT_MOUNT) && curr->dev == dev)
|
||||
while (curr) {
|
||||
if ((opts & FUSER_OPT_MOUNT) && curr->dev == dev)
|
||||
return 1;
|
||||
if(curr->inode == inode && curr->dev == dev)
|
||||
if (curr->inode == inode && curr->dev == dev)
|
||||
return 1;
|
||||
curr = curr->next;
|
||||
}
|
||||
@ -188,17 +196,19 @@ static int fuser_scan_pid_maps(int opts, const char *fname, pid_t pid,
|
||||
long long uint64_inode;
|
||||
dev_t dev;
|
||||
|
||||
if (!(file = fopen(fname, "r"))) return 0;
|
||||
file = fopen(fname, "r");
|
||||
if (!file)
|
||||
return 0;
|
||||
while (fgets(line, FUSER_MAX_LINE, file)) {
|
||||
if(sscanf(line, "%*s %*s %*s %x:%x %llu",
|
||||
&major, &minor, &uint64_inode) != 3) continue;
|
||||
if (sscanf(line, "%*s %*s %*s %x:%x %llu", &major, &minor, &uint64_inode) != 3)
|
||||
continue;
|
||||
inode = uint64_inode;
|
||||
if(major == 0 && minor == 0 && inode == 0) continue;
|
||||
if (major == 0 && minor == 0 && inode == 0)
|
||||
continue;
|
||||
dev = makedev(major, minor);
|
||||
if(fuser_search_dev_inode(opts, ilist, dev, inode)) {
|
||||
if (fuser_search_dev_inode(opts, ilist, dev, inode)) {
|
||||
fuser_add_pid(plist, pid);
|
||||
}
|
||||
|
||||
}
|
||||
fclose(file);
|
||||
return 1;
|
||||
@ -210,8 +220,9 @@ static int fuser_scan_link(int opts, const char *lname, pid_t pid,
|
||||
ino_t inode;
|
||||
dev_t dev;
|
||||
|
||||
if(!fuser_file_to_dev_inode(lname, &dev, &inode)) return 0;
|
||||
if(fuser_search_dev_inode(opts, ilist, dev, inode))
|
||||
if (!fuser_file_to_dev_inode(lname, &dev, &inode))
|
||||
return 0;
|
||||
if (fuser_search_dev_inode(opts, ilist, dev, inode))
|
||||
fuser_add_pid(plist, pid);
|
||||
return 1;
|
||||
}
|
||||
@ -223,19 +234,18 @@ static int fuser_scan_dir_links(int opts, const char *dname, pid_t pid,
|
||||
struct dirent *de;
|
||||
char *lname;
|
||||
|
||||
if((d = opendir(dname))) {
|
||||
while((de = readdir(d)) != NULL) {
|
||||
lname = concat_subpath_file(dname, de->d_name);
|
||||
if(lname == NULL)
|
||||
continue;
|
||||
fuser_scan_link(opts, lname, pid, ilist, plist);
|
||||
free(lname);
|
||||
}
|
||||
closedir(d);
|
||||
d = opendir(dname);
|
||||
if (!d)
|
||||
return 0;
|
||||
while ((de = readdir(d)) != NULL) {
|
||||
lname = concat_subpath_file(dname, de->d_name);
|
||||
if (lname == NULL)
|
||||
continue;
|
||||
fuser_scan_link(opts, lname, pid, ilist, plist);
|
||||
free(lname);
|
||||
}
|
||||
else return 0;
|
||||
closedir(d);
|
||||
return 1;
|
||||
|
||||
}
|
||||
|
||||
static int fuser_scan_proc_pids(int opts, inode_list *ilist, pid_list *plist)
|
||||
@ -245,12 +255,15 @@ static int fuser_scan_proc_pids(int opts, inode_list *ilist, pid_list *plist)
|
||||
pid_t pid;
|
||||
char *dname;
|
||||
|
||||
if(!(d = opendir(FUSER_PROC_DIR))) return 0;
|
||||
while((de = readdir(d)) != NULL) {
|
||||
d = opendir(FUSER_PROC_DIR);
|
||||
if (!d)
|
||||
return 0;
|
||||
while ((de = readdir(d)) != NULL) {
|
||||
pid = (pid_t)atoi(de->d_name);
|
||||
if(!pid) continue;
|
||||
if (!pid)
|
||||
continue;
|
||||
dname = concat_subpath_file(FUSER_PROC_DIR, de->d_name);
|
||||
if(chdir(dname) < 0) {
|
||||
if (chdir(dname) < 0) {
|
||||
free(dname);
|
||||
continue;
|
||||
}
|
||||
@ -272,9 +285,11 @@ static int fuser_print_pid_list(pid_list *plist)
|
||||
{
|
||||
pid_list *curr = plist;
|
||||
|
||||
if(plist == NULL) return 0;
|
||||
while(curr != NULL) {
|
||||
if(curr->pid > 0) printf("%d ", curr->pid);
|
||||
if (plist == NULL)
|
||||
return 0;
|
||||
while (curr != NULL) {
|
||||
if (curr->pid > 0)
|
||||
printf("%d ", curr->pid);
|
||||
curr = curr->next;
|
||||
}
|
||||
puts("");
|
||||
@ -287,12 +302,12 @@ static int fuser_kill_pid_list(pid_list *plist, int sig)
|
||||
pid_t mypid = getpid();
|
||||
int success = 1;
|
||||
|
||||
if(plist == NULL) return 0;
|
||||
while(curr != NULL) {
|
||||
if(curr->pid > 0 && curr->pid != mypid) {
|
||||
if (plist == NULL)
|
||||
return 0;
|
||||
while (curr != NULL) {
|
||||
if (curr->pid > 0 && curr->pid != mypid) {
|
||||
if (kill(curr->pid, sig) != 0) {
|
||||
bb_perror_msg(
|
||||
"cannot kill pid '%d'", curr->pid);
|
||||
bb_perror_msg("kill pid '%d'", curr->pid);
|
||||
success = 0;
|
||||
}
|
||||
}
|
||||
@ -304,11 +319,12 @@ static int fuser_kill_pid_list(pid_list *plist, int sig)
|
||||
int fuser_main(int argc, char **argv);
|
||||
int fuser_main(int argc, char **argv)
|
||||
{
|
||||
/*static -- huh???*/ int opt = 0; /* FUSER_OPT_ */
|
||||
|
||||
int port, i, optn;
|
||||
int* fni; /* file name indexes of argv */
|
||||
int fnic = 0; /* file name index count */
|
||||
const char *proto;
|
||||
static int opt = 0; /* FUSER_OPT_ */
|
||||
dev_t dev;
|
||||
ino_t inode;
|
||||
pid_list *pids;
|
||||
@ -320,30 +336,31 @@ int fuser_main(int argc, char **argv)
|
||||
bb_show_usage();
|
||||
|
||||
fni = xmalloc(sizeof(int));
|
||||
for (i=1;i<argc;i++) {
|
||||
for (i = 1; i < argc; i++) {
|
||||
optn = fuser_option(argv[i]);
|
||||
if(optn) opt |= optn;
|
||||
else if(argv[i][0] == '-') {
|
||||
if (optn)
|
||||
opt |= optn;
|
||||
else if (argv[i][0] == '-') {
|
||||
killsig = get_signum(argv[i]+1);
|
||||
if(0 > killsig)
|
||||
if (killsig < 0)
|
||||
killsig = SIGTERM;
|
||||
}
|
||||
else {
|
||||
} else {
|
||||
fni = xrealloc(fni, sizeof(int) * (fnic+2));
|
||||
fni[fnic++] = i;
|
||||
}
|
||||
}
|
||||
if(!fnic) return 1;
|
||||
|
||||
if (!fnic)
|
||||
return 1;
|
||||
|
||||
inodes = xmalloc(sizeof(inode_list));
|
||||
for (i=0;i<fnic;i++) {
|
||||
if(fuser_parse_net_arg(argv[fni[i]], &proto, &port)) {
|
||||
for (i = 0; i < fnic; i++) {
|
||||
if (fuser_parse_net_arg(argv[fni[i]], &proto, &port)) {
|
||||
fuser_scan_proc_net(opt, proto, port, inodes);
|
||||
}
|
||||
else {
|
||||
if(!fuser_file_to_dev_inode(
|
||||
argv[fni[i]], &dev, &inode)) {
|
||||
if (ENABLE_FEATURE_CLEAN_UP) free(inodes);
|
||||
} else {
|
||||
if (!fuser_file_to_dev_inode(argv[fni[i]], &dev, &inode)) {
|
||||
if (ENABLE_FEATURE_CLEAN_UP)
|
||||
free(inodes);
|
||||
bb_perror_msg_and_die("cannot open '%s'", argv[fni[i]]);
|
||||
}
|
||||
fuser_add_inode(inodes, dev, inode);
|
||||
@ -352,17 +369,19 @@ int fuser_main(int argc, char **argv)
|
||||
pids = xmalloc(sizeof(pid_list));
|
||||
success = fuser_scan_proc_pids(opt, inodes, pids);
|
||||
/* if the first pid in the list is 0, none have been found */
|
||||
if(pids->pid == 0) success = 0;
|
||||
if(success) {
|
||||
if(opt & FUSER_OPT_KILL) {
|
||||
if (pids->pid == 0)
|
||||
success = 0;
|
||||
if (success) {
|
||||
if (opt & FUSER_OPT_KILL) {
|
||||
success = fuser_kill_pid_list(pids, killsig);
|
||||
}
|
||||
else if(!(opt & FUSER_OPT_SILENT)) {
|
||||
} else if (!(opt & FUSER_OPT_SILENT)) {
|
||||
success = fuser_print_pid_list(pids);
|
||||
}
|
||||
}
|
||||
free(pids);
|
||||
free(inodes);
|
||||
if (ENABLE_FEATURE_CLEAN_UP) {
|
||||
free(pids);
|
||||
free(inodes);
|
||||
}
|
||||
/* return 0 on (success == 1) 1 otherwise */
|
||||
return (success != 1);
|
||||
}
|
||||
|
||||
@ -202,7 +202,8 @@ int sysctl_write_setting(const char *setting, int output)
|
||||
while ((cptr = strchr(outname, '/')) != NULL)
|
||||
*cptr = '.';
|
||||
|
||||
if ((fd = open(tmpname, O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 0) {
|
||||
fd = open(tmpname, O_WRONLY | O_CREAT | O_TRUNC, 0666);
|
||||
if (fd < 0) {
|
||||
switch (errno) {
|
||||
case ENOENT:
|
||||
bb_error_msg(ERR_INVALID_KEY, outname);
|
||||
|
||||
@ -1019,11 +1019,10 @@ static int setup_redirects(struct child_prog *prog, int squirrel[])
|
||||
}
|
||||
if (redir->dup == -1) {
|
||||
mode = redir_table[redir->type].mode;
|
||||
openfd = open(redir->word.gl_pathv[0], mode, 0666);
|
||||
openfd = open3_or_warn(redir->word.gl_pathv[0], mode, 0666);
|
||||
if (openfd < 0) {
|
||||
/* this could get lost if stderr has been redirected, but
|
||||
bash and ash both lose it as well (though zsh doesn't!) */
|
||||
bb_perror_msg("error opening %s", redir->word.gl_pathv[0]);
|
||||
return 1;
|
||||
}
|
||||
} else {
|
||||
|
||||
@ -571,11 +571,10 @@ static int setup_redirects(struct child_prog *prog, int squirrel[])
|
||||
break;
|
||||
}
|
||||
|
||||
openfd = open(redir->filename, mode, 0666);
|
||||
openfd = open3_or_warn(redir->filename, mode, 0666);
|
||||
if (openfd < 0) {
|
||||
/* this could get lost if stderr has been redirected, but
|
||||
bash and ash both lose it as well (though zsh doesn't!) */
|
||||
bb_perror_msg("error opening %s", redir->filename);
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
@ -111,7 +111,7 @@ int switch_root_main(int argc, char **argv)
|
||||
|
||||
if (console) {
|
||||
close(0);
|
||||
if(open(console, O_RDWR) < 0)
|
||||
if (open(console, O_RDWR) < 0)
|
||||
bb_error_msg_and_die("bad console '%s'", console);
|
||||
dup2(0, 1);
|
||||
dup2(0, 2);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user