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MEDIUM: config: move all unix-specific bind keywords to proto_uxst.c
The "mode", "uid", "gid", "user" and "group" bind options were moved to proto_uxst as they are unix-specific. Note that previous versions had a bug here, only the last listener was updated with the specified settings. However, it almost never happens that bind lines contain multiple UNIX socket paths so this is not that much of a problem anyway.
This commit is contained in:
Willy Tarreau
parent
3dcc341720
commit
d0a895d25f
@ -1710,94 +1710,6 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
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cur_arg = 2;
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while (*(args[cur_arg])) {
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struct bind_kw *kw;
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if (!strcmp(args[cur_arg], "mode")) {
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if (curproxy->listen->addr.ss_family != AF_UNIX) {
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Alert("parsing [%s:%d] : '%s %s' : '%s' option only supported on unix sockets.\n",
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file, linenum, args[0], args[1], args[cur_arg]);
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err_code |= ERR_ALERT | ERR_FATAL;
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goto out;
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}
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curproxy->listen->perm.ux.mode = strtol(args[cur_arg + 1], NULL, 8);
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cur_arg += 2;
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continue;
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}
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if (!strcmp(args[cur_arg], "uid")) {
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if (curproxy->listen->addr.ss_family != AF_UNIX) {
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Alert("parsing [%s:%d] : '%s %s' : '%s' option only supported on unix sockets.\n",
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file, linenum, args[0], args[1], args[cur_arg]);
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err_code |= ERR_ALERT | ERR_FATAL;
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goto out;
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}
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curproxy->listen->perm.ux.uid = atol(args[cur_arg + 1 ]);
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cur_arg += 2;
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continue;
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}
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if (!strcmp(args[cur_arg], "gid")) {
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if (curproxy->listen->addr.ss_family != AF_UNIX) {
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Alert("parsing [%s:%d] : '%s %s' : '%s' option only supported on unix sockets.\n",
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file, linenum, args[0], args[1], args[cur_arg]);
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err_code |= ERR_ALERT | ERR_FATAL;
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goto out;
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}
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curproxy->listen->perm.ux.gid = atol(args[cur_arg + 1 ]);
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cur_arg += 2;
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continue;
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}
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if (!strcmp(args[cur_arg], "user")) {
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struct passwd *user;
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if (curproxy->listen->addr.ss_family != AF_UNIX) {
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Alert("parsing [%s:%d] : '%s %s' : '%s' option only supported on unix sockets.\n",
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file, linenum, args[0], args[1], args[cur_arg]);
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err_code |= ERR_ALERT | ERR_FATAL;
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goto out;
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}
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user = getpwnam(args[cur_arg + 1]);
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if (!user) {
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Alert("parsing [%s:%d] : '%s %s' : '%s' unknown user.\n",
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file, linenum, args[0], args[1], args[cur_arg + 1 ]);
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err_code |= ERR_ALERT | ERR_FATAL;
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goto out;
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}
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curproxy->listen->perm.ux.uid = user->pw_uid;
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cur_arg += 2;
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continue;
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}
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if (!strcmp(args[cur_arg], "group")) {
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struct group *group;
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if (curproxy->listen->addr.ss_family != AF_UNIX) {
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Alert("parsing [%s:%d] : '%s %s' : '%s' option only supported on unix sockets.\n",
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file, linenum, args[0], args[1], args[cur_arg]);
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err_code |= ERR_ALERT | ERR_FATAL;
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goto out;
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}
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group = getgrnam(args[cur_arg + 1]);
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if (!group) {
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Alert("parsing [%s:%d] : '%s %s' : '%s' unknown group.\n",
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file, linenum, args[0], args[1], args[cur_arg + 1 ]);
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err_code |= ERR_ALERT | ERR_FATAL;
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goto out;
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}
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curproxy->listen->perm.ux.gid = group->gr_gid;
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cur_arg += 2;
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continue;
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}
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kw = bind_find_kw(args[cur_arg]);
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if (kw) {
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char *err = NULL;
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156
src/proto_uxst.c
156
src/proto_uxst.c
@ -13,6 +13,8 @@
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#include <ctype.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <pwd.h>
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#include <grp.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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@ -346,6 +348,159 @@ static int uxst_unbind_listeners(struct protocol *proto)
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return ERR_NONE;
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}
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/* parse the "mode" bind keyword */
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static int bind_parse_mode(char **args, int cur_arg, struct proxy *px, struct listener *last, char **err)
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{
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struct listener *l;
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int val;
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if (px->listen->addr.ss_family != AF_UNIX) {
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if (err)
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memprintf(err, "'%s' option is only supported on unix sockets", args[cur_arg]);
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return ERR_ALERT | ERR_FATAL;
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}
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if (!*args[cur_arg + 1]) {
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if (err)
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memprintf(err, "'%s' : missing mode (octal integer expected)", args[cur_arg]);
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return ERR_ALERT | ERR_FATAL;
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}
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val = strtol(args[cur_arg + 1], NULL, 8);
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for (l = px->listen; l != last; l = l->next)
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l->perm.ux.mode = val;
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return 0;
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}
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/* parse the "gid" bind keyword */
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static int bind_parse_gid(char **args, int cur_arg, struct proxy *px, struct listener *last, char **err)
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{
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struct listener *l;
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int val;
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if (px->listen->addr.ss_family != AF_UNIX) {
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if (err)
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memprintf(err, "'%s' option is only supported on unix sockets", args[cur_arg]);
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return ERR_ALERT | ERR_FATAL;
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}
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if (!*args[cur_arg + 1]) {
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if (err)
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memprintf(err, "'%s' : missing value", args[cur_arg]);
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return ERR_ALERT | ERR_FATAL;
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}
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val = atol(args[cur_arg + 1]);
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for (l = px->listen; l != last; l = l->next)
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l->perm.ux.gid = val;
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return 0;
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}
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/* parse the "group" bind keyword */
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static int bind_parse_group(char **args, int cur_arg, struct proxy *px, struct listener *last, char **err)
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{
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struct listener *l;
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struct group *group;
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if (px->listen->addr.ss_family != AF_UNIX) {
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if (err)
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memprintf(err, "'%s' option is only supported on unix sockets", args[cur_arg]);
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return ERR_ALERT | ERR_FATAL;
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}
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if (!*args[cur_arg + 1]) {
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if (err)
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memprintf(err, "'%s' : missing group name", args[cur_arg]);
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return ERR_ALERT | ERR_FATAL;
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}
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group = getgrnam(args[cur_arg + 1]);
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if (!group) {
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if (err)
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memprintf(err, "'%s' : unknown group name '%s'", args[cur_arg], args[cur_arg + 1]);
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return ERR_ALERT | ERR_FATAL;
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}
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for (l = px->listen; l != last; l = l->next)
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l->perm.ux.gid = group->gr_gid;
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return 0;
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}
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/* parse the "uid" bind keyword */
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static int bind_parse_uid(char **args, int cur_arg, struct proxy *px, struct listener *last, char **err)
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{
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struct listener *l;
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int val;
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if (px->listen->addr.ss_family != AF_UNIX) {
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if (err)
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memprintf(err, "'%s' option is only supported on unix sockets", args[cur_arg]);
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return ERR_ALERT | ERR_FATAL;
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}
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if (!*args[cur_arg + 1]) {
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if (err)
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memprintf(err, "'%s' : missing value", args[cur_arg]);
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return ERR_ALERT | ERR_FATAL;
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}
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val = atol(args[cur_arg + 1]);
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for (l = px->listen; l != last; l = l->next)
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l->perm.ux.uid = val;
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return 0;
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}
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/* parse the "user" bind keyword */
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static int bind_parse_user(char **args, int cur_arg, struct proxy *px, struct listener *last, char **err)
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{
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struct listener *l;
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struct passwd *user;
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if (px->listen->addr.ss_family != AF_UNIX) {
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if (err)
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memprintf(err, "'%s' option is only supported on unix sockets", args[cur_arg]);
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return ERR_ALERT | ERR_FATAL;
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}
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if (!*args[cur_arg + 1]) {
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if (err)
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memprintf(err, "'%s' : missing user name", args[cur_arg]);
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return ERR_ALERT | ERR_FATAL;
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}
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user = getpwnam(args[cur_arg + 1]);
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if (!user) {
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if (err)
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memprintf(err, "'%s' : unknown user name '%s'", args[cur_arg], args[cur_arg + 1]);
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return ERR_ALERT | ERR_FATAL;
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}
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for (l = px->listen; l != last; l = l->next)
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l->perm.ux.uid = user->pw_uid;
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return 0;
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}
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/* Note: must not be declared <const> as its list will be overwritten.
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* Please take care of keeping this list alphabetically sorted, doing so helps
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* all code contributors.
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* Optional keywords are also declared with a NULL ->parse() function so that
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* the config parser can report an appropriate error when a known keyword was
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* not enabled.
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*/
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static struct bind_kw_list bind_kws = {{ },{
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{ "gid", bind_parse_gid, 1 }, /* set the socket's gid */
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{ "group", bind_parse_group, 1 }, /* set the socket's gid from the group name */
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{ "mode", bind_parse_mode, 1 }, /* set the socket's mode (eg: 0644)*/
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{ "uid", bind_parse_uid, 1 }, /* set the socket's uid */
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{ "user", bind_parse_user, 1 }, /* set the socket's uid from the user name */
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{ NULL, NULL, 0 },
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}};
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/********************************
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* 4) high-level functions
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@ -355,6 +510,7 @@ __attribute__((constructor))
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static void __uxst_protocol_init(void)
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{
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protocol_register(&proto_unix);
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bind_register_keywords(&bind_kws);
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}
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