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View Code? Open in Web Editor NEWMusl-nscd is an implementation of the NSCD protocol, suitable for use with musl and with standard NSS modules
License: Other
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lejonet somasis apayne trimble-rail adriandelatabla midasi the-maldridge asquared kaniini kraj concatime ericonr compnerd gytamonmusl-nscd's Issues
%empty is a Bison extension and not part of POSIX Yacc
Consider replacing all instances with /* empty */ instead.
DB_HOSTS support with files backend
First of all, thank you very much for your work on this project.
Are there any plans to implement DB_HOSTS support and the 'files' backend?
possibility of integration with mdns?
Tried to build libnss_mdns against musl-nscd-dev on Alpine. However got errors when building libnss_mdns against musl-nscd-dev:
$ make -j4
make all-am
make[1]: Entering directory '/mnt/home/wxh/junk/nss-mdns-0.15.1'
CC src/libnss_mdns_la-util.lo
CC src/libnss_mdns_la-avahi.lo
CC src/libnss_mdns_la-nss.lo
CC src/libnss_mdns4_la-util.lo
In file included from src/util.c:32:
src/util.h:114:54: warning: 'struct gaih_addrtuple' declared inside parameter list will not be visible outside of this definition or declaration
114 | struct gaih_addrtuple** pat,
| ^~~~~~~~~~~~~~
src/util.c: In function 'local_soa':
src/util.c:125:14: warning: implicit declaration of function 'res_ninit'; did you mean 'res_init'? [-Wimplicit-function-declaration]
125 | result = res_ninit(&state);
| ^~~~~~~~~
| res_init
src/util.c:129:9: warning: implicit declaration of function 'res_nquery'; did you mean 'res_query'? [-Wimplicit-function-declaration]
129 | res_nquery(&state, "local", ns_c_in, ns_t_soa, answer, sizeof answer);
| ^~~~~~~~~~
| res_query
src/util.c:130:5: warning: implicit declaration of function 'res_nclose' [-Wimplicit-function-declaration]
130 | res_nclose(&state);
| ^~~~~~~~~~
src/util.c: At top level:
src/util.c:217:54: warning: 'struct gaih_addrtuple' declared inside parameter list will not be visible outside of this definition or declaration
217 | struct gaih_addrtuple** pat,
| ^~~~~~~~~~~~~~
src/util.c:215:17: error: conflicting types for 'convert_userdata_to_addrtuple'
215 | enum nss_status convert_userdata_to_addrtuple(const userdata_t* u,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from src/util.c:32:
src/util.h:112:17: note: previous declaration of 'convert_userdata_to_addrtuple' was here
112 | enum nss_status convert_userdata_to_addrtuple(const userdata_t* u,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/util.c: In function 'convert_userdata_to_addrtuple':
src/util.c:237:36: error: invalid application of 'sizeof' to incomplete type 'struct gaih_addrtuple'
237 | memset(tuple, 0, sizeof(*tuple));
| ^
src/util.c:240:46: error: invalid application of 'sizeof' to incomplete type 'struct gaih_addrtuple'
240 | tuple = buffer_alloc(buf, sizeof(struct gaih_addrtuple));
| ^~~~~~
src/util.c:248:14: error: invalid use of undefined type 'struct gaih_addrtuple'
248 | tuple->name = buffer_name;
| ^~
src/util.c:251:14: error: invalid use of undefined type 'struct gaih_addrtuple'
251 | tuple->family = result->af;
| ^~
src/util.c:254:23: error: invalid use of undefined type 'struct gaih_addrtuple'
254 | memcpy(&(tuple->addr), &(result->address), address_length);
| ^~
src/util.c:257:14: error: invalid use of undefined type 'struct gaih_addrtuple'
257 | tuple->scopeid = result->scopeid;
| ^~
src/util.c:265:23: error: invalid use of undefined type 'struct gaih_addrtuple'
265 | tuple_prev->next = tuple;
| ^~
In file included from src/nss.c:35:
src/util.h:114:54: warning: 'struct gaih_addrtuple' declared inside parameter list will not be visible outside of this definition or declaration
114 | struct gaih_addrtuple** pat,
| ^~~~~~~~~~~~~~
In file included from src/nss.c:36:
src/nss.h:38:64: warning: 'struct gaih_addrtuple' declared inside parameter list will not be visible outside of this definition or declaration
38 | enum nss_status _nss_mdns_gethostbyname4_r(const char*, struct gaih_addrtuple**,
| ^~~~~~~~~~~~~~
src/nss.c:152:51: warning: 'struct gaih_addrtuple' declared inside parameter list will not be visible outside of this definition or declaration
152 | struct gaih_addrtuple** pat,
| ^~~~~~~~~~~~~~
src/nss.c:151:17: error: conflicting types for '_nss_mdns_gethostbyname4_r'
151 | enum nss_status _nss_mdns_gethostbyname4_r(const char* name,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from src/avahi.c:34:
src/util.h:114:54: warning: 'struct gaih_addrtuple' declared inside parameter list will not be visible outside of this definition or declaration
114 | struct gaih_addrtuple** pat,
| ^~~~~~~~~~~~~~
In file included from src/nss.c:36:
src/nss.h:38:17: note: previous declaration of '_nss_mdns_gethostbyname4_r' was here
38 | enum nss_status _nss_mdns_gethostbyname4_r(const char*, struct gaih_addrtuple**,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
make[1]: *** [Makefile:1156: src/libnss_mdns_la-util.lo] Error 1
make[1]: *** Waiting for unfinished jobs....
src/nss.c: In function '_nss_mdns_gethostbyname4_r':
src/nss.c:168:52: warning: passing argument 3 of 'convert_userdata_to_addrtuple' from incompatible pointer type [-Wincompatible-pointer-types]
168 | return convert_userdata_to_addrtuple(&u, name, pat, &buf, errnop, h_errnop);
| ^~~
| |
| struct gaih_addrtuple **
In file included from src/nss.c:35:
src/util.h:114:71: note: expected 'struct gaih_addrtuple **' but argument is of type 'struct gaih_addrtuple **'
114 | struct gaih_addrtuple** pat,
| ~~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from src/util.c:32:
src/util.h:114:54: warning: 'struct gaih_addrtuple' declared inside parameter list will not be visible outside of this definition or declaration
114 | struct gaih_addrtuple** pat,
| ^~~~~~~~~~~~~~
src/util.c: In function 'local_soa':
src/util.c:125:14: warning: implicit declaration of function 'res_ninit'; did you mean 'res_init'? [-Wimplicit-function-declaration]
125 | result = res_ninit(&state);
| ^~~~~~~~~
| res_init
src/util.c:129:9: warning: implicit declaration of function 'res_nquery'; did you mean 'res_query'? [-Wimplicit-function-declaration]
129 | res_nquery(&state, "local", ns_c_in, ns_t_soa, answer, sizeof answer);
| ^~~~~~~~~~
| res_query
src/util.c:130:5: warning: implicit declaration of function 'res_nclose' [-Wimplicit-function-declaration]
130 | res_nclose(&state);
| ^~~~~~~~~~
make[1]: *** [Makefile:1170: src/libnss_mdns_la-nss.lo] Error 1
src/util.c: At top level:
src/util.c:217:54: warning: 'struct gaih_addrtuple' declared inside parameter list will not be visible outside of this definition or declaration
217 | struct gaih_addrtuple** pat,
| ^~~~~~~~~~~~~~
src/util.c:215:17: error: conflicting types for 'convert_userdata_to_addrtuple'
215 | enum nss_status convert_userdata_to_addrtuple(const userdata_t* u,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from src/util.c:32:
src/util.h:112:17: note: previous declaration of 'convert_userdata_to_addrtuple' was here
112 | enum nss_status convert_userdata_to_addrtuple(const userdata_t* u,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/util.c: In function 'convert_userdata_to_addrtuple':
src/util.c:237:36: error: invalid application of 'sizeof' to incomplete type 'struct gaih_addrtuple'
237 | memset(tuple, 0, sizeof(*tuple));
| ^
src/util.c:240:46: error: invalid application of 'sizeof' to incomplete type 'struct gaih_addrtuple'
240 | tuple = buffer_alloc(buf, sizeof(struct gaih_addrtuple));
| ^~~~~~
src/util.c:248:14: error: invalid use of undefined type 'struct gaih_addrtuple'
248 | tuple->name = buffer_name;
| ^~
src/util.c:251:14: error: invalid use of undefined type 'struct gaih_addrtuple'
251 | tuple->family = result->af;
| ^~
src/util.c:254:23: error: invalid use of undefined type 'struct gaih_addrtuple'
254 | memcpy(&(tuple->addr), &(result->address), address_length);
| ^~
src/util.c:257:14: error: invalid use of undefined type 'struct gaih_addrtuple'
257 | tuple->scopeid = result->scopeid;
| ^~
src/util.c:265:23: error: invalid use of undefined type 'struct gaih_addrtuple'
265 | tuple_prev->next = tuple;
| ^~
make[1]: *** [Makefile:1177: src/libnss_mdns4_la-util.lo] Error 1
make[1]: Leaving directory '/mnt/home/wxh/junk/nss-mdns-0.15.1'
make: *** [Makefile:819: all] Error 2
wxh@lg-blk ~/junk/nss-mdns-0.15.1 1.638s 2 ❯ CFLAGS="-O3" CFLAG="-O3" make -j4
make all-am
make[1]: Entering directory '/mnt/home/wxh/junk/nss-mdns-0.15.1'
CC src/libnss_mdns_la-util.lo
CC src/libnss_mdns_la-nss.lo
CC src/libnss_mdns4_la-util.lo
CC src/libnss_mdns4_la-avahi.lo
In file included from src/util.c:32:
src/util.h:114:54: warning: 'struct gaih_addrtuple' declared inside parameter list will not be visible outside of this definition or declaration
114 | struct gaih_addrtuple** pat,
| ^~~~~~~~~~~~~~
In file included from src/avahi.c:34:
src/util.h:114:54: warning: 'struct gaih_addrtuple' declared inside parameter list will not be visible outside of this definition or declaration
114 | struct gaih_addrtuple** pat,
| ^~~~~~~~~~~~~~
src/util.c: In function 'local_soa':
src/util.c:125:14: warning: implicit declaration of function 'res_ninit'; did you mean 'res_init'? [-Wimplicit-function-declaration]
125 | result = res_ninit(&state);
| ^~~~~~~~~
| res_init
src/util.c:129:9: warning: implicit declaration of function 'res_nquery'; did you mean 'res_query'? [-Wimplicit-function-declaration]
129 | res_nquery(&state, "local", ns_c_in, ns_t_soa, answer, sizeof answer);
| ^~~~~~~~~~
| res_query
src/util.c:130:5: warning: implicit declaration of function 'res_nclose' [-Wimplicit-function-declaration]
130 | res_nclose(&state);
| ^~~~~~~~~~
src/util.c: At top level:
src/util.c:217:54: warning: 'struct gaih_addrtuple' declared inside parameter list will not be visible outside of this definition or declaration
217 | struct gaih_addrtuple** pat,
| ^~~~~~~~~~~~~~
src/util.c:215:17: error: conflicting types for 'convert_userdata_to_addrtuple'
215 | enum nss_status convert_userdata_to_addrtuple(const userdata_t* u,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from src/util.c:32:
src/util.h:112:17: note: previous declaration of 'convert_userdata_to_addrtuple' was here
112 | enum nss_status convert_userdata_to_addrtuple(const userdata_t* u,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/util.c: In function 'convert_userdata_to_addrtuple':
src/util.c:237:36: error: invalid application of 'sizeof' to incomplete type 'struct gaih_addrtuple'
237 | memset(tuple, 0, sizeof(*tuple));
| ^
src/util.c:240:46: error: invalid application of 'sizeof' to incomplete type 'struct gaih_addrtuple'
240 | tuple = buffer_alloc(buf, sizeof(struct gaih_addrtuple));
| ^~~~~~
src/util.c:248:14: error: invalid use of undefined type 'struct gaih_addrtuple'
248 | tuple->name = buffer_name;
| ^~
src/util.c:251:14: error: invalid use of undefined type 'struct gaih_addrtuple'
251 | tuple->family = result->af;
| ^~
src/util.c:254:23: error: invalid use of undefined type 'struct gaih_addrtuple'
254 | memcpy(&(tuple->addr), &(result->address), address_length);
| ^~
src/util.c:257:14: error: invalid use of undefined type 'struct gaih_addrtuple'
257 | tuple->scopeid = result->scopeid;
| ^~
src/util.c:265:23: error: invalid use of undefined type 'struct gaih_addrtuple'
265 | tuple_prev->next = tuple;
| ^~
In file included from src/util.c:32:
src/util.h:114:54: warning: 'struct gaih_addrtuple' declared inside parameter list will not be visible outside of this definition or declaration
114 | struct gaih_addrtuple** pat,
| ^~~~~~~~~~~~~~
In file included from src/nss.c:35:
src/util.h:114:54: warning: 'struct gaih_addrtuple' declared inside parameter list will not be visible outside of this definition or declaration
114 | struct gaih_addrtuple** pat,
| ^~~~~~~~~~~~~~
In file included from src/nss.c:36:
src/nss.h:38:64: warning: 'struct gaih_addrtuple' declared inside parameter list will not be visible outside of this definition or declaration
38 | enum nss_status _nss_mdns_gethostbyname4_r(const char*, struct gaih_addrtuple**,
| ^~~~~~~~~~~~~~
src/util.c: In function 'local_soa':
src/util.c:125:14: warning: implicit declaration of function 'res_ninit'; did you mean 'res_init'? [-Wimplicit-function-declaration]
125 | result = res_ninit(&state);
| ^~~~~~~~~
| res_init
src/util.c:129:9: warning: implicit declaration of function 'res_nquery'; did you mean 'res_query'? [-Wimplicit-function-declaration]
129 | res_nquery(&state, "local", ns_c_in, ns_t_soa, answer, sizeof answer);
| ^~~~~~~~~~
| res_query
src/nss.c:152:51: warning: 'struct gaih_addrtuple' declared inside parameter list will not be visible outside of this definition or declaration
152 | struct gaih_addrtuple** pat,
| ^~~~~~~~~~~~~~
src/nss.c:151:17: error: conflicting types for '_nss_mdns_gethostbyname4_r'
151 | enum nss_status _nss_mdns_gethostbyname4_r(const char* name,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from src/nss.c:36:
src/nss.h:38:17: note: previous declaration of '_nss_mdns_gethostbyname4_r' was here
38 | enum nss_status _nss_mdns_gethostbyname4_r(const char*, struct gaih_addrtuple**,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
src/nss.c: In function '_nss_mdns_gethostbyname4_r':
src/nss.c:168:52: warning: passing argument 3 of 'convert_userdata_to_addrtuple' from incompatible pointer type [-Wincompatible-pointer-types]
168 | return convert_userdata_to_addrtuple(&u, name, pat, &buf, errnop, h_errnop);
| ^~~
| |
| struct gaih_addrtuple **
In file included from src/nss.c:35:
src/util.h:114:71: note: expected 'struct gaih_addrtuple **' but argument is of type 'struct gaih_addrtuple **'
114 | struct gaih_addrtuple** pat,
| ~~~~~~~~~~~~~~~~~~~~~~~~^~~
make[1]: *** [Makefile:1156: src/libnss_mdns_la-util.lo] Error 1
make[1]: *** Waiting for unfinished jobs....
src/util.c:130:5: warning: implicit declaration of function 'res_nclose' [-Wimplicit-function-declaration]
130 | res_nclose(&state);
| ^~~~~~~~~~
src/util.c: At top level:
src/util.c:217:54: warning: 'struct gaih_addrtuple' declared inside parameter list will not be visible outside of this definition or declaration
217 | struct gaih_addrtuple** pat,
| ^~~~~~~~~~~~~~
src/util.c:215:17: error: conflicting types for 'convert_userdata_to_addrtuple'
215 | enum nss_status convert_userdata_to_addrtuple(const userdata_t* u,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from src/util.c:32:
src/util.h:112:17: note: previous declaration of 'convert_userdata_to_addrtuple' was here
112 | enum nss_status convert_userdata_to_addrtuple(const userdata_t* u,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/util.c: In function 'convert_userdata_to_addrtuple':
src/util.c:237:36: error: invalid application of 'sizeof' to incomplete type 'struct gaih_addrtuple'
237 | memset(tuple, 0, sizeof(*tuple));
| ^
src/util.c:240:46: error: invalid application of 'sizeof' to incomplete type 'struct gaih_addrtuple'
240 | tuple = buffer_alloc(buf, sizeof(struct gaih_addrtuple));
| ^~~~~~
src/util.c:248:14: error: invalid use of undefined type 'struct gaih_addrtuple'
248 | tuple->name = buffer_name;
| ^~
src/util.c:251:14: error: invalid use of undefined type 'struct gaih_addrtuple'
251 | tuple->family = result->af;
| ^~
src/util.c:254:23: error: invalid use of undefined type 'struct gaih_addrtuple'
254 | memcpy(&(tuple->addr), &(result->address), address_length);
| ^~
src/util.c:257:14: error: invalid use of undefined type 'struct gaih_addrtuple'
257 | tuple->scopeid = result->scopeid;
| ^~
src/util.c:265:23: error: invalid use of undefined type 'struct gaih_addrtuple'
265 | tuple_prev->next = tuple;
| ^~
make[1]: *** [Makefile:1170: src/libnss_mdns_la-nss.lo] Error 1
make[1]: *** [Makefile:1177: src/libnss_mdns4_la-util.lo] Error 1
make[1]: Leaving directory '/mnt/home/wxh/junk/nss-mdns-0.15.1'
make: *** [Makefile:819: all] Error 2
Rough typos
- return write_groups(fd, swap, 0 > 0 ? 0 : -1, 0);
+ return write_groups(fd, swap, 0, 0) > 0 ? 0 : -1;
...
- return write_groups(fd, swap, 0 > 0 ? 0 : -1, 0);
+ return write_groups(fd, swap, 0, 0) > 0 ? 0 : -1;
...
- if(full_write(fd, (char*)head, sizeof head < 0)) return -1;
+ if(full_write(fd, (char*)head, sizeof head) < 0) return -1;
...
- for(i = 0; i < GR_LEN; i++) {
+ for(i = 0; i < INITGR_LEN; i++) { I also added ignoring SIGPIPE.
Some problems with the Strxfrm() function and the Wcsxfrm() function in the MUSL Lic
When I was referring to your code, I found that there were some problems with the Strxfrm() function and the Wcsxfrm() function in the MUSL Lic library. The two functions are located in the “musl-1.1.23\src\locale” directory.
As for the Strxfrm() function, when n = l or n < l, the copy string function is not executed.
As for the Wcsxfrm() function, when n = 1, l = 2, a character of the source string is not copied, but only one ‘\0’.
In response to the above questions, I made the following changes:
size_t __strxfrm_l(char *restrict dest, const char *restrict src, size_t n, locale_t loc)
{
size_t l = strlen(src);
if (l < n) {
stpncpy(dest, src, l+1);
} else if (n) {
stpncpy(dest, src, n);
}
return l;
}
size_t __wcsxfrm_l(wchar_t *restrict dest, const wchar_t *restrict src, size_t n, locale_t loc)
{
size_t l = wcslen(src);
if (l < n) {
wmemcpy(dest, src, l+1);
} else if (n) {
wmemcpy(dest, src, n-1);
dest[n-1] = 0;
}
return l;
}
How does this compare against something like skarnet's nsss?
How does this project compare against something like skarnet's nsss?
Doesn’t work with winbind and even segfaults
I can’t get it work with winbind (Samba 4 DC) on Alpine Linux.
$ getent passwd kflynn; echo $?
2strace of musl-nscd:
accept(4, NULL, NULL) = 5
rt_sigprocmask(SIG_UNBLOCK, [RT_1 RT_2], NULL, 8) = 0
mmap(NULL, 94208, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff18f466000
mprotect(0x7ff18f468000, 86016, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7ff18f47ca88, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID|0x400000, parent_tidptr=0x7ff18f47cae8, tls=0x7ff18f47cab0, child_tidptr=0x7ff18f47cae8) = 3546
read(5, "\2\0\0\0\0\0\0\0\7\0\0\0", 12) = 12
read(5, "kflynn\0", 7) = 7
brk(0x7ff191657000) = 0x7ff191657000
getpid() = 3542
getpid() = 3542
getpid() = 3542
lstat("/var/run/samba/winbindd", {st_mode=S_IFDIR|0755, st_size=60, ...}) = 0
lstat("/var/run/samba/winbindd/pipe", {st_mode=S_IFSOCK|0777, st_size=0, ...}) = 0
socket(AF_UNIX, SOCK_STREAM, 0) = 6
fcntl(6, F_GETFL) = 0x2 (flags O_RDWR)
fcntl(6, F_SETFL, O_RDWR|O_NONBLOCK) = 0
fcntl(6, F_GETFD) = 0
fcntl(6, F_SETFD, FD_CLOEXEC) = 0
connect(6, {sa_family=AF_UNIX, sun_path="/var/run/samba/winbindd/pipe"}, 110) = 0
getpid() = 3542
getpid() = 3542
poll([{fd=6, events=POLLIN|POLLOUT|POLLHUP}], 1, -1) = 1 ([{fd=6, revents=POLLOUT}])
write(6, "0\10\0\0\0\0\0\0\0\0\0\0\326\r\0\0\0\10\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 2096) = 2096
getpid() = 3542
poll([{fd=6, events=POLLIN|POLLHUP}], 1, 5000) = 1 ([{fd=6, revents=POLLIN}])
read(6, "\250\r\0\0\2\0\0\0\34\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 3496) = 3496
getpid() = 3542
getpid() = 3542
poll([{fd=6, events=POLLIN|POLLOUT|POLLHUP}], 1, -1) = 1 ([{fd=6, revents=POLLOUT}])
write(6, "0\10\0\0,\0\0\0\0\0\0\0\326\r\0\0\0\10\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 2096) = 2096
getpid() = 3542
poll([{fd=6, events=POLLIN|POLLHUP}], 1, 5000) = 1 ([{fd=6, revents=POLLIN}])
read(6, "\313\r\0\0\2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 3496) = 3496
getpid() = 3542
poll([{fd=6, events=POLLIN|POLLHUP}], 1, 5000) = 1 ([{fd=6, revents=POLLIN}])
read(6, "/var/lib/samba/winbindd_privileg"..., 35) = 35
lstat("/var/lib/samba/winbindd_privileged", {st_mode=S_IFDIR|0750, st_size=8, ...}) = 0
lstat("/var/lib/samba/winbindd_privileged/pipe", {st_mode=S_IFSOCK|0777, st_size=0, ...}) = 0
socket(AF_UNIX, SOCK_STREAM, 0) = 7
fcntl(7, F_GETFL) = 0x2 (flags O_RDWR)
fcntl(7, F_SETFL, O_RDWR|O_NONBLOCK) = 0
fcntl(7, F_GETFD) = 0
fcntl(7, F_SETFD, FD_CLOEXEC) = 0
connect(7, {sa_family=AF_UNIX, sun_path="/var/lib/samba/winbindd_privileged/pipe"}, 110) = 0
close(6) = 0
poll([{fd=7, events=POLLIN|POLLOUT|POLLHUP}], 1, -1) = 1 ([{fd=7, revents=POLLOUT}])
write(7, "0\10\0\0\1\0\0\0\0\0\0\0\326\r\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 2096) = 2096
getpid() = 3542
poll([{fd=7, events=POLLIN|POLLHUP}], 1, 5000) = 1 ([{fd=7, revents=POLLIN}])
read(7, "\250\r\0\0\2\0\0\0ENCOMCOM\\kflynn\0\0\0\0\0\0\0\0\0"..., 3496) = 3496
write(5, "\2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 36) = 36
close(5) = 0
poll([{fd=4, events=POLLIN}], 1, -1
And when I query user who is both in /etc/passwd and Samba (winbind fails on it according to documentation):
$ id samflynn
uid=1020(samflynn) gid=1000(encomcom) groups=1000(encomcom)strace of musl-nscd:
) = 1 ([{fd=4, revents=POLLIN}])
accept(4, NULL, NULL) = 5
rt_sigprocmask(SIG_UNBLOCK, [RT_1 RT_2], NULL, 8) = 0
mmap(NULL, 94208, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f027a24f000
mprotect(0x7f027a251000, 86016, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7f027a265a88, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID|0x400000, parent_tidptr=0x7f027a265ae8, tls=0x7f027a265ab0, child_tidptr=0x7f027a265ae8) = 3662
read(5, "\2\0\0\0\17\0\0\0\t\0\0\0", 12) = 12
read(5, "samflynn\0", 9) = 9
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x7f02} ---
+++ killed by SIGSEGV +++
Segmentation fault
What nss modules do you use with musl-nscd?
configure aborts if yacc or lex cannot be found
When yacc (or lex) cannot be found, configure outputs:
./configure: cannot find yacc. Will try to use pre-provided source.
Despite this message, it aborts at that line, probably due to a misplaced exit 1 in the configure script.
I ran sed 's/exit 1 ;//' -i configure and now the script behaves as expected.
Fails with poor error message if /etc/nsswitch.conf is missing
If /etc/nsswitch.conf is missing, nscd fails to run with following message:
# /musl-nscd-1.0.1/obj/nscd
nscd: No such file or directory
This error persists even after touch /etc/nsswitch.conf.
If not exists the directory of the file socket_path, the socket creation failed
If the path (/var/run/nscd/) does not exist then socket creation die, perhaps pre-create the directory will be an idea into the main.c
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