1 files changed, 122 insertions, 0 deletions
diff --git a/string-utils.c b/string-utils.c
new file mode 100644
index 0000000..01ddebc
--- /dev/null
+++ b/string-utils.c
@@ -0,0 +1,122 @@
+/*
+ * nvidia-installer: A tool for installing NVIDIA software packages on
+ * Unix and Linux systems.
+ *
+ * Copyright (C) 2003-2009 NVIDIA Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the:
+ *
+ *      Free Software Foundation, Inc.
+ *      59 Temple Place - Suite 330
+ *      Boston, MA 02111-1307, USA
+ *
+ *
+ * string-utils.c: this file contains various helper function used for
+ * string manipulation in nvidia-installer.
+ */
+
+#include <ctype.h>
+#include <string.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "string-utils.h"
+#include "alloc-utils.h"
+
+/*
+ * nvstrdup() - wrapper for strdup() that checks the return
+ * value; if an error occurs, an error is printed to
+ * stderr and exit is called.  This function will only return
+ * on success.
+ */
+
+char *nvstrdup(const char *s)
+{
+    char *m;
+
+    if (!s) return NULL;
+
+    m = strdup(s);
+
+    if (!m) {
+        fprintf(stderr, "%s: memory allocation failure during strdup (%s)! \n",
+                PROGRAM_NAME, strerror(errno));
+        exit(1);
+    }
+    return m;
+
+} /* nvstrdup() */
+
+
+
+/*
+ * nvstrtolower() - convert the given string to lowercase.
+ */
+
+char *nvstrtolower(char *s)
+{
+    char *start = s;
+
+    if (s == NULL) return NULL;
+
+    while (*s) {
+        *s = tolower(*s);
+        s++;
+    }
+
+    return start;
+
+} /* nvstrtolower() */
+
+
+
+/*
+ * nvstrcat() - allocate a new string, copying all given strings
+ * into it.  taken from glib
+ */
+
+char *nvstrcat(const char *str, ...)
+{
+    unsigned int l;
+    va_list args;
+    char *s;
+    char *concat;
+
+    l = 1 + strlen(str);
+    va_start(args, str);
+    s = va_arg(args, char *);
+
+    while (s) {
+        l += strlen(s);
+        s = va_arg(args, char *);
+    }
+    va_end(args);
+
+    concat = nvalloc(l);
+    concat[0] = 0;
+
+    strcat(concat, str);
+    va_start(args, str);
+    s = va_arg(args, char *);
+    while (s) {
+        strcat(concat, s);
+        s = va_arg(args, char *);
+    }
+    va_end(args);
+
+    return concat;
+
+} /* nvstrcat() */