*/
#define _GNU_SOURCE
+#include <assert.h>
#include <ctype.h>
#include <fcntl.h>
#include <limits.h>
* /tmp/test1 does, the real path is returned. In normal time, realpath(3)
* fails if the end point directory does not exist.
*/
+__attribute__((visibility("hidden")))
char *utils_expand_path(const char *path)
{
const char *end_path = path;
}
/* Add end part to expanded path */
- strncat(expanded_path, end_path, PATH_MAX);
+ strncat(expanded_path, end_path, PATH_MAX - strlen(expanded_path) - 1);
free(cut_path);
return expanded_path;
/*
* Create a pipe in dst.
*/
+__attribute__((visibility("hidden")))
int utils_create_pipe(int *dst)
{
int ret;
* Make sure the pipe opened by this function are closed at some point. Use
* utils_close_pipe().
*/
+__attribute__((visibility("hidden")))
int utils_create_pipe_cloexec(int *dst)
{
int ret, i;
/*
* Close both read and write side of the pipe.
*/
+__attribute__((visibility("hidden")))
void utils_close_pipe(int *src)
{
int i, ret;
/*
* Create a new string using two strings range.
*/
+__attribute__((visibility("hidden")))
char *utils_strdupdelim(const char *begin, const char *end)
{
char *str;
error:
return str;
}
+
+/*
+ * Set CLOEXEC flag to the give file descriptor.
+ */
+__attribute__((visibility("hidden")))
+int utils_set_fd_cloexec(int fd)
+{
+ int ret;
+
+ if (fd < 0) {
+ ret = -EINVAL;
+ goto end;
+ }
+
+ ret = fcntl(fd, F_SETFD, FD_CLOEXEC);
+ if (ret < 0) {
+ PERROR("fcntl cloexec");
+ ret = -errno;
+ }
+
+end:
+ return ret;
+}
+
+/*
+ * Create pid file to the given path and filename.
+ */
+__attribute__((visibility("hidden")))
+int utils_create_pid_file(pid_t pid, const char *filepath)
+{
+ int ret;
+ FILE *fp;
+
+ assert(filepath);
+
+ fp = fopen(filepath, "w");
+ if (fp == NULL) {
+ PERROR("open pid file %s", filepath);
+ ret = -1;
+ goto error;
+ }
+
+ ret = fprintf(fp, "%d\n", pid);
+ if (ret < 0) {
+ PERROR("fprintf pid file");
+ }
+
+ fclose(fp);
+ DBG("Pid %d written in file %s", pid, filepath);
+error:
+ return ret;
+}