diff options
Diffstat (limited to 'main/iostream.c')
| -rw-r--r-- | main/iostream.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/main/iostream.c b/main/iostream.c index a20a04896..22cd5985c 100644 --- a/main/iostream.c +++ b/main/iostream.c @@ -404,7 +404,7 @@ ssize_t ast_iostream_write(struct ast_iostream *stream, const void *buf, size_t ssize_t ast_iostream_printf(struct ast_iostream *stream, const void *fmt, ...) { - char sbuf[256], *buf = sbuf; + char sbuf[512], *buf = sbuf; int len, len2, ret = -1; va_list va; @@ -412,15 +412,18 @@ ssize_t ast_iostream_printf(struct ast_iostream *stream, const void *fmt, ...) len = vsnprintf(buf, sizeof(sbuf), fmt, va); va_end(va); - if (len > sizeof(sbuf)) { - buf = ast_malloc(len); + if (len > sizeof(sbuf) - 1) { + /* Add one to the string length to accommodate the NULL byte */ + size_t buf_len = len + 1; + + buf = ast_malloc(buf_len); if (!buf) { return -1; } va_start(va, fmt); - len2 = vsnprintf(buf, len, fmt, va); + len2 = vsnprintf(buf, buf_len, fmt, va); va_end(va); - if (len2 > len) { + if (len2 != len) { goto error; } } |