From c766f073e60c3aa51a3cc1555af87ded5823e5a0 Mon Sep 17 00:00:00 2001 From: Tharre Date: Tue, 8 Apr 2014 09:19:33 +0200 Subject: Initial codebase --- src/util.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 src/util.c (limited to 'src/util.c') diff --git a/src/util.c b/src/util.c new file mode 100644 index 0000000..e67ec18 --- /dev/null +++ b/src/util.c @@ -0,0 +1,60 @@ +#include +#include +#include +#include +#include + +#include "util.h" +#define __FILENAME__ "util.c" +#include "dbg.h" + +#include "../config.h" + +/* A safe malloc wrapper. */ +void *ec_malloc(size_t size) { + void *ptr = malloc(size); + if(ptr == NULL) + fatal("redo: cannot allocate %zu bytes", size); + + return ptr; +} + +/* For concating multiple strings into a single larger one. */ +char *concat(size_t count, ...) { + assert(count > 0); + va_list ap, ap2; + va_start(ap, count); + va_copy(ap2, ap); + size_t i, size = 0, args_len[count]; + for (i = 0; i < count; ++i) { + args_len[i] = strlen(va_arg(ap, char*)); + size += args_len[i]; + } + size++; + char *result = ec_malloc(size); + /* debug("Allocated %zu bytes at %p\n", size, result); */ + uintptr_t offset = 0; + for (i = 0; i < count; ++i) { + strcpy(&result[offset], va_arg(ap2, char*)); + offset += args_len[i]; + } + va_end(ap); + va_end(ap2); + return result; +} + +char *xbasename(const char *path) { + assert(path); + char *ptr = strrchr(path, '/'); + return ptr? ptr+1 : (char*) path; +} + +char *ec_strdup(const char* str) { + assert(str); + size_t len = strlen(str) + 1; + char *ptr = malloc(len); + if (!ptr) + fatal("redo: failed to duplicate string"); + + return memcpy(ptr, str, len);; +} -- cgit v1.2.3-70-g09d2