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-rw-r--r--archival/bbunzip.c9
-rw-r--r--archival/tar.c5
-rw-r--r--coreutils/cat.c13
-rw-r--r--coreutils/dos2unix.c6
-rw-r--r--coreutils/md5_sha1_sum.c3
-rw-r--r--e2fsprogs/fsck.c1
-rw-r--r--include/libbb.h2
-rw-r--r--libbb/copy_file.c10
-rw-r--r--libbb/copyfd.c6
-rw-r--r--libbb/wfopen_input.c2
-rw-r--r--libbb/xfuncs.c32
-rw-r--r--miscutils/crond.c13
-rw-r--r--networking/libiproute/iproute.c3
-rw-r--r--networking/libiproute/iptunnel.c3
-rw-r--r--networking/udhcp/files.c9
-rw-r--r--procps/fuser.c217
-rw-r--r--procps/sysctl.c3
-rw-r--r--shell/hush.c3
-rw-r--r--shell/lash.c3
-rw-r--r--util-linux/switch_root.c2
20 files changed, 183 insertions, 162 deletions
diff --git a/archival/bbunzip.c b/archival/bbunzip.c
index 3c3cc2886..4dba498b8 100644
--- a/archival/bbunzip.c
+++ b/archival/bbunzip.c
@@ -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;
}
diff --git a/archival/tar.c b/archival/tar.c
index f2f1ccd06..11a74dfe9 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -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. */
diff --git a/coreutils/cat.c b/coreutils/cat.c
index eb141dc79..ed3f33650 100644
--- a/coreutils/cat.c
+++ b/coreutils/cat.c
@@ -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;
}
diff --git a/coreutils/dos2unix.c b/coreutils/dos2unix.c
index 1d35d524a..04c56ac9c 100644
--- a/coreutils/dos2unix.c
+++ b/coreutils/dos2unix.c
@@ -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+");
diff --git a/coreutils/md5_sha1_sum.c b/coreutils/md5_sha1_sum.c
index 417e90b00..a3818d519 100644
--- a/coreutils/md5_sha1_sum.c
+++ b/coreutils/md5_sha1_sum.c
@@ -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;
}
}
diff --git a/e2fsprogs/fsck.c b/e2fsprogs/fsck.c
index cf7f6f070..446541e84 100644
--- a/e2fsprogs/fsck.c
+++ b/e2fsprogs/fsck.c
@@ -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) {
diff --git a/include/libbb.h b/include/libbb.h
index c3baf9e7c..e8f1cf653 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -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);
diff --git a/libbb/copy_file.c b/libbb/copy_file.c
index 7d85920d9..700564212 100644
--- a/libbb/copy_file.c
+++ b/libbb/copy_file.c
@@ -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;
}
diff --git a/libbb/copyfd.c b/libbb/copyfd.c
index aa8fbb967..3255e424a 100644
--- a/libbb/copyfd.c
+++ b/libbb/copyfd.c
@@ -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;
}
diff --git a/libbb/wfopen_input.c b/libbb/wfopen_input.c
index 7a11dacd7..1b4928e1f 100644
--- a/libbb/wfopen_input.c
+++ b/libbb/wfopen_input.c
@@ -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"
diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c
index dde91a2ba..870d736b3 100644
--- a/libbb/xfuncs.c
+++ b/libbb/xfuncs.c
@@ -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)
+// Die if we can't open a file and return a fd.
+int xopen3(const char *pathname, int flags, int mode)
{
- //if (ENABLE_DEBUG && (flags & O_CREAT))
- // bb_error_msg_and_die("xopen() with O_CREAT");
+ int ret;
+
+ ret = open(pathname, flags, mode);
+ if (ret < 0) {
+ 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);
}
-// Die if we can't open a new file and return an fd.
-int xopen3(const char *pathname, int flags, int mode)
+// 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_and_die("%s", pathname);
+ 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);
}
}
diff --git a/miscutils/crond.c b/miscutils/crond.c
index 24aa3dcc3..c7d1a6c50 100644
--- a/miscutils/crond.c
+++ b/miscutils/crond.c
@@ -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
diff --git a/networking/libiproute/iproute.c b/networking/libiproute/iproute.c
index a19586c91..23d416344 100644
--- a/networking/libiproute/iproute.c
+++ b/networking/libiproute/iproute.c
@@ -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;
}
diff --git a/networking/libiproute/iptunnel.c b/networking/libiproute/iptunnel.c
index 52a50993d..a2eb0ccda 100644
--- a/networking/libiproute/iptunnel.c
+++ b/networking/libiproute/iptunnel.c
@@ -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;
}
diff --git a/networking/udhcp/files.c b/networking/udhcp/files.c
index ab6f4a3e4..41c8717cd 100644
--- a/networking/udhcp/files.c
+++ b/networking/udhcp/files.c
@@ -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;
}
diff --git a/procps/fuser.c b/procps/fuser.c
index c91ae217b..40789dd5e 100644
--- a/procps/fuser.c
+++ b/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 (!(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) {
+ if (!fuser_find_socket_dev(&tmp_dev))
+ tmp_dev = 0;
+ sprintf(path, FUSER_PROC_DIR "/net/%s", proto);
+
+ 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);
}
diff --git a/procps/sysctl.c b/procps/sysctl.c
index b5a01894f..7c72ac933 100644
--- a/procps/sysctl.c
+++ b/procps/sysctl.c
@@ -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);
diff --git a/shell/hush.c b/shell/hush.c
index 331d591c8..1ad61e54e 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -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 {
diff --git a/shell/lash.c b/shell/lash.c
index aba9c0a2e..c72a65639 100644
--- a/shell/lash.c
+++ b/shell/lash.c
@@ -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;
}
diff --git a/util-linux/switch_root.c b/util-linux/switch_root.c
index 43c2a6991..43377e16e 100644
--- a/util-linux/switch_root.c
+++ b/util-linux/switch_root.c
@@ -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);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 02:13:38 +0000