diff options
Diffstat (limited to 'src/libstrongswan/utils/utils.c')
| -rw-r--r-- | src/libstrongswan/utils/utils.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/libstrongswan/utils/utils.c b/src/libstrongswan/utils/utils.c index 30084cd81..266fb4357 100644 --- a/src/libstrongswan/utils/utils.c +++ b/src/libstrongswan/utils/utils.c @@ -29,6 +29,7 @@ #include "collections/enumerator.h" #include "utils/debug.h" +#include "utils/chunk.h" ENUM(status_names, SUCCESS, NEED_MORE, "SUCCESS", @@ -513,6 +514,51 @@ _cas_impl(ptr, void*) #endif /* HAVE_GCC_ATOMIC_OPERATIONS */ + +#ifdef HAVE_FMEMOPEN_FALLBACK + +static int fmemread(chunk_t *cookie, char *buf, int size) +{ + int len; + + len = min(size, cookie->len); + memcpy(buf, cookie->ptr, len); + *cookie = chunk_skip(*cookie, len); + + return len; +} + +static int fmemwrite(chunk_t *cookie, const char *buf, int size) +{ + int len; + + len = min(size, cookie->len); + memcpy(cookie->ptr, buf, len); + *cookie = chunk_skip(*cookie, len); + + return len; +} + +static int fmemclose(void *cookie) +{ + free(cookie); + return 0; +} + +FILE *fmemopen(void *buf, size_t size, const char *mode) +{ + chunk_t *cookie; + + INIT(cookie, + .ptr = buf, + .len = size, + ); + + return funopen(cookie, (void*)fmemread, (void*)fmemwrite, NULL, fmemclose); +} + +#endif /* FMEMOPEN fallback*/ + /** * Described in header. */ |