diff options
Diffstat (limited to 'nss/getXXbyYY_r.c')
| -rw-r--r-- | nss/getXXbyYY_r.c | 63 |
1 files changed, 46 insertions, 17 deletions
diff --git a/nss/getXXbyYY_r.c b/nss/getXXbyYY_r.c index 6c90ba543d..b535f67a7b 100644 --- a/nss/getXXbyYY_r.c +++ b/nss/getXXbyYY_r.c @@ -42,12 +42,18 @@ |* DATABASE_NAME - name of the database the function accesses *| |* (e.g., host, services, ...) *| |* *| -|* ADD_PARAMS - additional parameter, can vary in number *| +|* ADD_PARAMS - additional parameters, can vary in number *| |* *| -|* ADD_VARIABLES - names of additional parameter *| +|* ADD_VARIABLES - names of additional parameters *| |* *| |* Optionally the following vars can be defined: *| |* *| +|* EXTRA_PARAMS - optional parameters, can vary in number *| +|* *| +|* EXTRA_VARIABLES - names of optional parameter *| +|* *| +|* FUNCTION_NAME - alternative name of the non-reentrant function *| +|* *| |* NEED_H_ERRNO - an extra parameter will be passed to point to *| |* the global `h_errno' variable. *| |* *| @@ -62,6 +68,11 @@ /* To make the real sources a bit prettier. */ #define REENTRANT_NAME APPEND_R (FUNCTION_NAME) +#ifdef FUNCTION2_NAME +# define REENTRANT2_NAME APPEND_R (FUNCTION2_NAME) +#else +# define REENTRANT2_NAME NULL +#endif #define APPEND_R(name) APPEND_R1 (name) #define APPEND_R1(name) name##_r #define INTERNAL(name) INTERNAL1 (name) @@ -80,12 +91,17 @@ #define FUNCTION_NAME_STRING STRINGIZE (FUNCTION_NAME) #define REENTRANT_NAME_STRING STRINGIZE (REENTRANT_NAME) +#ifdef FUNCTION2_NAME +# define REENTRANT2_NAME_STRING STRINGIZE (REENTRANT2_NAME) +#else +# define REENTRANT2_NAME_STRING NULL +#endif #define DATABASE_NAME_STRING STRINGIZE (DATABASE_NAME) #define STRINGIZE(name) STRINGIZE1 (name) #define STRINGIZE1(name) #name #ifndef DB_LOOKUP_FCT -# define DB_LOOKUP_FCT CONCAT3_1 (__nss_, DATABASE_NAME, _lookup) +# define DB_LOOKUP_FCT CONCAT3_1 (__nss_, DATABASE_NAME, _lookup2) # define CONCAT3_1(Pre, Name, Post) CONCAT3_2 (Pre, Name, Post) # define CONCAT3_2(Pre, Name, Post) Pre##Name##Post #endif @@ -101,6 +117,13 @@ # define H_ERRNO_VAR_P NULL #endif +#ifndef EXTRA_PARAMS +# define EXTRA_PARAMS +#endif +#ifndef EXTRA_VARIABLES +# define EXTRA_VARIABLES +#endif + #ifdef HAVE_AF # define AF_VAL af #else @@ -109,17 +132,20 @@ /* Type of the lookup function we need here. */ typedef enum nss_status (*lookup_function) (ADD_PARAMS, LOOKUP_TYPE *, char *, - size_t, int * H_ERRNO_PARM); + size_t, int * H_ERRNO_PARM + EXTRA_PARAMS); /* The lookup function for the first entry of this service. */ -extern int DB_LOOKUP_FCT (service_user **nip, const char *name, void **fctp) +extern int DB_LOOKUP_FCT (service_user **nip, const char *name, + const char *name2, void **fctp) internal_function; libc_hidden_proto (DB_LOOKUP_FCT) int INTERNAL (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer, - size_t buflen, LOOKUP_TYPE **result H_ERRNO_PARM) + size_t buflen, LOOKUP_TYPE **result H_ERRNO_PARM + EXTRA_PARAMS) { static bool startp_initialized; static service_user *startp; @@ -171,7 +197,8 @@ INTERNAL (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer, if (! startp_initialized) { - no_more = DB_LOOKUP_FCT (&nip, REENTRANT_NAME_STRING, &fct.ptr); + no_more = DB_LOOKUP_FCT (&nip, REENTRANT_NAME_STRING, + REENTRANT2_NAME_STRING, &fct.ptr); if (no_more) { void *tmp_ptr = (service_user *) -1l; @@ -224,7 +251,7 @@ INTERNAL (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer, #endif status = DL_CALL_FCT (fct.l, (ADD_VARIABLES, resbuf, buffer, buflen, - &errno H_ERRNO_VAR)); + &errno H_ERRNO_VAR EXTRA_VARIABLES)); /* The status is NSS_STATUS_TRYAGAIN and errno is ERANGE the provided buffer is too small. In this case we should give @@ -238,8 +265,8 @@ INTERNAL (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer, && errno == ERANGE) break; - no_more = __nss_next (&nip, REENTRANT_NAME_STRING, - &fct.ptr, status, 0); + no_more = __nss_next2 (&nip, REENTRANT_NAME_STRING, + REENTRANT2_NAME_STRING, &fct.ptr, status, 0); } #ifdef HANDLE_DIGITS_DOTS @@ -274,10 +301,11 @@ done: } -#include <shlib-compat.h> -#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1_2) -#define OLD(name) OLD1 (name) -#define OLD1(name) __old_##name +#ifndef FUNCTION2_NAME +# include <shlib-compat.h> +# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1_2) +# define OLD(name) OLD1 (name) +# define OLD1(name) __old_##name int attribute_compat_text_section @@ -293,19 +321,20 @@ OLD (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer, return ret; } -#define do_symbol_version(real, name, version) \ +# define do_symbol_version(real, name, version) \ compat_symbol (libc, real, name, version) do_symbol_version (OLD (REENTRANT_NAME), REENTRANT_NAME, GLIBC_2_0); -#endif +# endif /* As INTERNAL (REENTRANT_NAME) may be hidden, we need an alias in between so that the REENTRANT_NAME@@GLIBC_2.1.2 is not hidden too. */ strong_alias (INTERNAL (REENTRANT_NAME), NEW (REENTRANT_NAME)); -#define do_default_symbol_version(real, name, version) \ +# define do_default_symbol_version(real, name, version) \ versioned_symbol (libc, real, name, version) do_default_symbol_version (NEW (REENTRANT_NAME), REENTRANT_NAME, GLIBC_2_1_2); +#endif static_link_warning (REENTRANT_NAME) |