#include <config.h>
#include <errno.h>
#include <unistd.h>
#include <isc/stdio.h>
#include "errno2result.h"
isc_result_t
isc_stdio_open(const char *filename, const char *mode, FILE **fp) {
FILE *f;
f = fopen(filename, mode);
if (f == NULL)
return (isc__errno2result(errno));
*fp = f;
return (ISC_R_SUCCESS);
}
isc_result_t
isc_stdio_close(FILE *f) {
int r;
r = fclose(f);
if (r == 0)
return (ISC_R_SUCCESS);
else
return (isc__errno2result(errno));
}
isc_result_t
isc_stdio_seek(FILE *f, long offset, int whence) {
int r;
r = fseek(f, offset, whence);
if (r == 0)
return (ISC_R_SUCCESS);
else
return (isc__errno2result(errno));
}
isc_result_t
isc_stdio_read(void *ptr, size_t size, size_t nmemb, FILE *f, size_t *nret) {
isc_result_t result = ISC_R_SUCCESS;
size_t r;
clearerr(f);
r = fread(ptr, size, nmemb, f);
if (r != nmemb) {
if (feof(f))
result = ISC_R_EOF;
else
result = isc__errno2result(errno);
}
if (nret != NULL)
*nret = r;
return (result);
}
isc_result_t
isc_stdio_write(const void *ptr, size_t size, size_t nmemb, FILE *f,
size_t *nret)
{
isc_result_t result = ISC_R_SUCCESS;
size_t r;
clearerr(f);
r = fwrite(ptr, size, nmemb, f);
if (r != nmemb)
result = isc__errno2result(errno);
if (nret != NULL)
*nret = r;
return (result);
}
isc_result_t
isc_stdio_flush(FILE *f) {
int r;
r = fflush(f);
if (r == 0)
return (ISC_R_SUCCESS);
else
return (isc__errno2result(errno));
}
isc_result_t
isc_stdio_sync(FILE *f) {
int r;
r = fsync(fileno(f));
if (r == 0)
return (ISC_R_SUCCESS);
else
return (isc__errno2result(errno));
}