X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/8ef4ffd6987bb566c268d2a353d5fea1cfd9e430..0cea42440ffc9edab56710ab0baaff9454a86fea:/util.c

diff --git a/util.c b/util.c
index 67308cd2..ffbdc932 100644
--- a/util.c
+++ b/util.c
@@ -482,3 +482,52 @@ int name_to_gid(char *name, gid_t *gid)
 	return 0;
 }
 
+
+/****************************************************************************
+check if a process exists. 
+****************************************************************************/
+int process_exists(int pid)
+{
+	return(kill(pid,0) == 0 || errno != ESRCH);
+}
+
+/* lock a byte range in a open file */
+int lock_range(int fd, int offset, int len)
+{
+	struct flock lock;
+
+	lock.l_type = F_WRLCK;
+	lock.l_whence = SEEK_SET;
+	lock.l_start = offset;
+	lock.l_len = len;
+	lock.l_pid = 0;
+	
+	return fcntl(fd,F_SETLK,&lock) == 0;
+}
+
+
+void glob_expand(char **argv, int *argc, int maxargs)
+{
+#ifndef HAVE_GLOB
+	(*argc)++;
+	return;
+#else
+	glob_t globbuf;
+	int i;
+
+	memset(&globbuf, 0, sizeof(globbuf));
+	glob(argv[*argc], 0, NULL, &globbuf);
+	if (globbuf.gl_pathc == 0) {
+		(*argc)++;
+		globfree(&globbuf);
+		return;
+	}
+	for (i=0; i<(maxargs - (*argc)) && i<globbuf.gl_pathc;i++) {
+		if (i == 0) free(argv[*argc]);
+		argv[(*argc) + i] = strdup(globbuf.gl_pathv[i]);
+		if (!argv[(*argc) + i]) out_of_memory("glob_expand");
+	}
+	globfree(&globbuf);
+	(*argc) += i;
+#endif
+}