diff options
| -rw-r--r-- | common/estream.c | 32 | ||||
| -rw-r--r-- | common/estream.h | 3 |
2 files changed, 35 insertions, 0 deletions
diff --git a/common/estream.c b/common/estream.c index 304e0e6ee..35b2af047 100644 --- a/common/estream.c +++ b/common/estream.c @@ -2362,6 +2362,38 @@ es_fopenmem (size_t memlimit, const char *ES__RESTRICT mode) } +/* This is the same as es_fopenmem but intializes the memory with a + copy of (DATA,DATALEN). The stream is initally set to the + beginning. If MEMLIMIT is not 0 but shorter than DATALEN it + DATALEN will be used as the value for MEMLIMIT. */ +estream_t +es_fopenmem_init (size_t memlimit, const char *ES__RESTRICT mode, + const void *data, size_t datalen) +{ + estream_t stream; + + if (memlimit && memlimit < datalen) + memlimit = datalen; + + stream = es_fopenmem (memlimit, mode); + if (stream && data && datalen) + { + if (es_writen (stream, data, datalen, NULL)) + { + int saveerrno = errno; + es_fclose (stream); + stream = NULL; + _set_errno (saveerrno); + } + else + { + es_seek (stream, 0L, SEEK_SET, NULL); + es_set_indicators (stream, 0, 0); + } + } + return stream; +} + estream_t es_fopencookie (void *ES__RESTRICT cookie, diff --git a/common/estream.h b/common/estream.h index f72e4c6c6..35df20b67 100644 --- a/common/estream.h +++ b/common/estream.h @@ -76,6 +76,7 @@ #define es_fopen _ESTREAM_PREFIX(es_fopen) #define es_mopen _ESTREAM_PREFIX(es_mopen) #define es_fopenmem _ESTREAM_PREFIX(es_fopenmem) +#define es_fopenmem_init _ESTREAM_PREFIX(es_fopenmem_init) #define es_fdopen _ESTREAM_PREFIX(es_fdopen) #define es_fdopen_nc _ESTREAM_PREFIX(es_fdopen_nc) #define es_fpopen _ESTREAM_PREFIX(es_fpopen) @@ -243,6 +244,8 @@ estream_t es_mopen (unsigned char *ES__RESTRICT data, void (*func_free) (void *mem), const char *ES__RESTRICT mode); estream_t es_fopenmem (size_t memlimit, const char *ES__RESTRICT mode); +estream_t es_fopenmem_init (size_t memlimit, const char *ES__RESTRICT mode, + const void *data, size_t datalen); estream_t es_fdopen (int filedes, const char *mode); estream_t es_fdopen_nc (int filedes, const char *mode); estream_t es_fpopen (FILE *fp, const char *mode); |