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Diffstat (limited to 'procps/fuser.c')
-rw-r--r--procps/fuser.c217
1 files changed, 118 insertions, 99 deletions
diff --git a/procps/fuser.c b/procps/fuser.c
index c91ae21..40789dd 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);
}
generated by cgit v1.1 at 2024-12-26 23:06:17 +0000