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shadow_c.go
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shadow_c.go
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//nolint:dupl // nss/(group|passwd|shadow)_c.go files have similar code that triggers dupl, but they are different.
package main
/*
#cgo LDFLAGS: -fPIC
#include <nss.h>
#include <shadow.h>
#include <errno.h>
typedef enum nss_status nss_status;
*/
import "C"
import (
"context"
"unsafe"
"github.com/ubuntu/aad-auth/internal/logger"
"github.com/ubuntu/aad-auth/internal/nss"
"github.com/ubuntu/aad-auth/internal/nss/shadow"
"github.com/ubuntu/aad-auth/internal/user"
)
//export _nss_aad_getspnam_r
func _nss_aad_getspnam_r(name *C.char, spwd *C.struct_spwd, buf *C.char, buflen C.size_t, errnop *C.int) C.nss_status {
ctx := nss.CtxWithSyslogLogger(context.Background())
defer logger.CloseLoggerFromContext(ctx)
n := C.GoString(name)
logger.Debug(ctx, "_nss_aad_getspnam_r called for %q", n)
n = user.NormalizeName(n)
sp, err := shadow.NewByName(ctx, n, opts...)
if err != nil {
return errToCStatus(ctx, err, errnop)
}
if err = sp.ToCshadow(shadow.CShadow(unsafe.Pointer(spwd)), (*shadow.CChar)(buf), shadow.CSizeT(buflen)); err != nil {
return errToCStatus(ctx, err, errnop)
}
return C.NSS_STATUS_SUCCESS
}
//export _nss_aad_setspent
func _nss_aad_setspent() C.nss_status {
ctx := nss.CtxWithSyslogLogger(context.Background())
defer logger.CloseLoggerFromContext(ctx)
logger.Debug(ctx, "_nss_aad_setspent called")
err := shadow.StartEntryIteration(ctx, opts...)
if err != nil {
return errToCStatus(ctx, err, nil)
}
// Initialization of the database is done in the read primitive
return C.NSS_STATUS_SUCCESS
}
//export _nss_aad_endspent
func _nss_aad_endspent() C.nss_status {
ctx := nss.CtxWithSyslogLogger(context.Background())
defer logger.CloseLoggerFromContext(ctx)
logger.Debug(ctx, "_nss_aad_endspent called")
err := shadow.EndEntryIteration(ctx)
if err != nil {
return errToCStatus(ctx, err, nil)
}
// Closing the database is done in the read primitive
return C.NSS_STATUS_SUCCESS
}
//export _nss_aad_getspent_r
func _nss_aad_getspent_r(spwd *C.struct_spwd, buf *C.char, buflen C.size_t, errnop *C.int) C.nss_status {
ctx := nss.CtxWithSyslogLogger(context.Background())
defer logger.CloseLoggerFromContext(ctx)
logger.Debug(ctx, "_nss_aad_getspent_r called")
sp, err := shadow.NextEntry(ctx)
if err != nil {
return errToCStatus(ctx, err, errnop)
}
if err = sp.ToCshadow(shadow.CShadow(unsafe.Pointer(spwd)), (*shadow.CChar)(buf), shadow.CSizeT(buflen)); err != nil {
return errToCStatus(ctx, err, errnop)
}
return C.NSS_STATUS_SUCCESS
}