return ret;
}
+void *xmallocz(size_t size)
+{
+ void *ret;
+ if (size + 1 < size)
+ die("Data too large to fit into virtual memory space.");
+ ret = xmalloc(size + 1);
+ ((char*)ret)[size] = 0;
+ return ret;
+}
+
/*
* xmemdupz() allocates (len + 1) bytes of memory, duplicates "len" bytes of
* "data" to the allocated memory, zero terminates the allocated memory,
*/
void *xmemdupz(const void *data, size_t len)
{
- char *p = xmalloc(len + 1);
- memcpy(p, data, len);
- p[len] = '\0';
- return p;
+ return memcpy(xmallocz(len), data, len);
}
char *xstrndup(const char *str, size_t len)
release_pack_memory(length, fd);
ret = mmap(start, length, prot, flags, fd, offset);
if (ret == MAP_FAILED)
- die("Out of memory? mmap failed: %s", strerror(errno));
+ die_errno("Out of memory? mmap failed");
}
return ret;
}
{
int ret = dup(fd);
if (ret < 0)
- die("dup failed: %s", strerror(errno));
+ die_errno("dup failed");
return ret;
}
{
FILE *stream = fdopen(fd, mode);
if (stream == NULL)
- die("Out of memory? fdopen failed: %s", strerror(errno));
+ die_errno("Out of memory? fdopen failed");
return stream;
}
fd = mkstemp(template);
if (fd < 0)
- die("Unable to create temporary file: %s", strerror(errno));
+ die_errno("Unable to create temporary file");
return fd;
}
safe_create_leading_directories(name);
return open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
}
+
+int unlink_or_warn(const char *file)
+{
+ int rc = unlink(file);
+
+ if (rc < 0) {
+ int err = errno;
+ if (ENOENT != err) {
+ warning("unable to unlink %s: %s",
+ file, strerror(errno));
+ errno = err;
+ }
+ }
+ return rc;
+}
+