diff options
| -rw-r--r-- | include/Makefile.am | 3 | ||||
| -rw-r--r-- | include/libimobiledevice-glue/cbuf.h | 35 | ||||
| -rw-r--r-- | src/Makefile.am | 1 | ||||
| -rw-r--r-- | src/cbuf.c | 67 |
4 files changed, 105 insertions, 1 deletions
diff --git a/include/Makefile.am b/include/Makefile.am index a661eeb..3684b8f 100644 --- a/include/Makefile.am +++ b/include/Makefile.am @@ -3,4 +3,5 @@ nobase_include_HEADERS = \ libimobiledevice-glue/thread.h \ libimobiledevice-glue/utils.h \ libimobiledevice-glue/collection.h \ - libimobiledevice-glue/termcolors.h + libimobiledevice-glue/termcolors.h \ + libimobiledevice-glue/cbuf.h diff --git a/include/libimobiledevice-glue/cbuf.h b/include/libimobiledevice-glue/cbuf.h new file mode 100644 index 0000000..01e2f43 --- /dev/null +++ b/include/libimobiledevice-glue/cbuf.h @@ -0,0 +1,35 @@ +/* + * cbuf.h + * Simple char buffer implementation. + * + * Copyright (c) 2021 Nikias Bassen, All Rights Reserved. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __CBUF_H +#define __CBUF_H + +struct char_buf { + unsigned char* data; + unsigned int length; + unsigned int capacity; +}; + +struct char_buf* char_buf_new(); +void char_buf_free(struct char_buf* cbuf); +void char_buf_append(struct char_buf* cbuf, unsigned int length, unsigned char* data); + +#endif /* __CBUF_H */ diff --git a/src/Makefile.am b/src/Makefile.am index 67986cb..38a2349 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -14,6 +14,7 @@ libimobiledevice_glue_1_0_la_SOURCES = \ utils.c \ collection.c \ termcolors.c \ + cbuf.c \ common.h if WIN32 diff --git a/src/cbuf.c b/src/cbuf.c new file mode 100644 index 0000000..c7c931f --- /dev/null +++ b/src/cbuf.c @@ -0,0 +1,67 @@ +/* + * cbuf.c + * Simple char buffer implementation. + * + * Copyright (c) 2021 Nikias Bassen, All Rights Reserved. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdlib.h> +#include <string.h> +#include <stdio.h> + +#include "common.h" +#include "libimobiledevice-glue/cbuf.h" + +LIBIMOBILEDEVICE_GLUE_API struct char_buf* char_buf_new() +{ + struct char_buf* cbuf = (struct char_buf*)malloc(sizeof(struct char_buf)); + cbuf->capacity = 256; + cbuf->length = 0; + cbuf->data = (unsigned char*)malloc(cbuf->capacity); + return cbuf; +} + +LIBIMOBILEDEVICE_GLUE_API void char_buf_free(struct char_buf* cbuf) +{ + if (cbuf) { + free(cbuf->data); + free(cbuf); + } +} + +LIBIMOBILEDEVICE_GLUE_API void char_buf_append(struct char_buf* cbuf, unsigned int length, unsigned char* data) +{ + if (!cbuf || !cbuf->data) { + return; + } + if (cbuf->length + length > cbuf->capacity) { + unsigned int newcapacity = cbuf->capacity + ((length / 256) + 1) * 256; + unsigned char* newdata = realloc(cbuf->data, newcapacity); + if (!newdata) { + fprintf(stderr, "%s: ERROR: Failed to realloc\n", __func__); + return; + } + cbuf->data = newdata; + cbuf->capacity = newcapacity; + } + memcpy(cbuf->data + cbuf->length, data, length); + cbuf->length += length; +} |