%% options copyright owner = Dirk Krause copyright year = 2015-xxxx license = bsd %% header /** @file Open file with additional security checks, file name is specified in dkChar characters. */ #include "dk4conf.h" #include "dk4fopc8.h" #if DK4_CHAR_SIZE > 1 #include "dk4fopwc.h" #endif #ifdef __cplusplus extern "C" { #endif /** Open a file after doing security checks. CRT on Windows: Required. @param name File name to open. @param mode Opening mode. @param tests Set of tests, see dk4fopc8.h. @param erp Error report, may be NULL. @return Pointer to open file on success, NULL on error. Error codes: - DK4_E_INVALID_ARGUMENTS
if name is NULL, - DK4_E_SYNTAX
if name does not refer to a regular file, - DK4_E_SEC_CHECK
with failed check id in iDetails1 if access is denied by additional security checks, - DK4_E_OPEN_WRITE_FAILED
or DK4_E_OPEN_READ_FAILED with errno value in iDetails1 if fopen() failed. */ FILE * dk4fopen(const dkChar *name, const dkChar *mode, int tests, dk4_er_t *erp); /** Check whether we can allow to open the file. The file must be a regular file. Only POSIX: For root we deny opening for writing via symlink. For all users we deny opening for writing via symlink if the link owner is not the real file owner. CRT on Windows: Required. @param name File name to check. @param ww Flag: Write access wanted. @param tests Set of tests. @param erp Error report, may be NULL. @return 1 if opening the file is allowed, 0 otherwise. Error codes: - DK4_E_INVALID_ARGUMENTS
if name is NULL, - DK4_E_SYNTAX
if name is not a regular file, - DK4_E_SEC_CHECK
if access to a symlink target is denied symlink owner and target owner differ. */ int dk4fopen_check(const dkChar *name, int ww, int tests, dk4_er_t *erp); #ifdef __cplusplus } #endif %% module #include "dk4conf.h" #include "dk4fopd.h" FILE * dk4fopen(const dkChar *name, const dkChar *mode, int tests, dk4_er_t *erp) { #if DK4_CHAR_SIZE > 1 return (dk4fopen_wc(name, mode, tests, erp)); #else return (dk4fopen_c8(name, mode, tests, erp)); #endif } int dk4fopen_check(const dkChar *name, int ww, int tests, dk4_er_t *erp) { #if DK4_CHAR_SIZE > 1 return (dk4fopen_check_wc(name, ww, tests, erp)); #else return (dk4fopen_check_c8(name, ww, tests, erp)); #endif }