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#include "utils.h" char* copy_string(const char* str, size_t strln) { char* s=malloc(sizeof(char)*(strln+1)); strncpy(s, str, strln); *(s+strln) = '\0'; return s; } size_t safe_strlen(const char* str) { if (str) { return strlen(str); } return 0; } void safe_free(void* p) { if (p) { free(p); } } void Buffer_init(struct Buffer* this) { this->buffer = malloc(256); this->bufferUsed = 0; this->bufferAllocated = 256; } void Buffer_destroyMembers(struct Buffer* this) { free(this->buffer); } size_t Buffer_append(struct Buffer* this, const void* data, size_t dataSize) { size_t newSize = this->bufferUsed + dataSize; if (newSize > this->bufferAllocated) { size_t newAllocSize = this->bufferAllocated + dataSize; char* newBuffer = malloc(newAllocSize); memcpy(newBuffer, this->buffer, this->bufferUsed); free(this->buffer); this->buffer = newBuffer; this->bufferAllocated = newAllocSize; if (!newBuffer) { return -1; } } memcpy(this->buffer+this->bufferUsed, data, dataSize); this->bufferUsed = this->bufferUsed + dataSize; return dataSize; }