#include "os_file.h"
#include <errno.h>
+#include <fcntl.h>
#include <stdlib.h>
+#include <sys/stat.h>
+
+
+#if defined(WIN32)
+#include <io.h>
+#define open _open
+#define fdopen _fdopen
+#define O_CREAT _O_CREAT
+#define O_EXCL _O_EXCL
+#define O_WRONLY _O_WRONLY
+#endif
+
+
+FILE *
+os_file_create_unique(const char *filename, int filemode)
+{
+ int fd = open(filename, O_CREAT | O_EXCL | O_WRONLY, filemode);
+ if (fd == -1)
+ return NULL;
+ return fdopen(fd, "w");
+}
+
#if defined(__linux__)
total += ret;
} while (total != len);
- return total ? total : err;
+ return total ? (ssize_t)total : err;
}
char *
return NULL;
}
- ssize_t read;
+ ssize_t actually_read;
size_t offset = 0, remaining = len - 1;
- while ((read = readN(fd, buf + offset, remaining)) == remaining) {
+ while ((actually_read = readN(fd, buf + offset, remaining)) == (ssize_t)remaining) {
char *newbuf = realloc(buf, 2 * len);
if (!newbuf) {
free(buf);
buf = newbuf;
len *= 2;
- offset += read;
+ offset += actually_read;
remaining = len - offset - 1;
}
close(fd);
- if (read > 0)
- offset += read;
+ if (actually_read > 0)
+ offset += actually_read;
+
+ /* Final resize to actual size */
+ len = offset + 1;
+ char *newbuf = realloc(buf, len);
+ if (!newbuf) {
+ free(buf);
+ close(fd);
+ errno = -ENOMEM;
+ return NULL;
+ }
+ buf = newbuf;
buf[offset] = '\0';