1 files changed, 56 insertions, 0 deletions
diff --git a/gnu/lib/libf2c/libF77/getenv_.c b/gnu/lib/libf2c/libF77/getenv_.c
new file mode 100644
index 00000000000..4d0b7cf7b04
--- /dev/null
+++ b/gnu/lib/libf2c/libF77/getenv_.c
@@ -0,0 +1,56 @@
+#include "f2c.h"
+#undef abs
+#ifdef KR_headers
+extern char *F77_aloc(), *getenv();
+#else
+#include <stdlib.h>
+#include <string.h>
+extern char *F77_aloc(ftnlen, char*);
+#endif
+
+/*
+ * getenv - f77 subroutine to return environment variables
+ *
+ * called by:
+ *	call getenv (ENV_NAME, char_var)
+ * where:
+ *	ENV_NAME is the name of an environment variable
+ *	char_var is a character variable which will receive
+ *		the current value of ENV_NAME, or all blanks
+ *		if ENV_NAME is not defined
+ */
+
+#ifdef KR_headers
+ VOID
+G77_getenv_0 (fname, value, flen, vlen) char *value, *fname; ftnlen vlen, flen;
+#else
+ void
+G77_getenv_0 (char *fname, char *value, ftnlen flen, ftnlen vlen)
+#endif
+{
+	char buf[256], *ep, *fp;
+	integer i;
+
+	if (flen <= 0)
+		goto add_blanks;
+	for(i = 0; i < sizeof(buf); i++) {
+		if (i == flen || (buf[i] = fname[i]) == ' ') {
+			buf[i] = 0;
+			ep = getenv(buf);
+			goto have_ep;
+			}
+		}
+	while(i < flen && fname[i] != ' ')
+		i++;
+	strncpy(fp = F77_aloc(i+1, "getenv_"), fname, (int)i);
+	fp[i] = 0;
+	ep = getenv(fp);
+	free(fp);
+ have_ep:
+	if (ep)
+		while(*ep && vlen-- > 0)
+			*value++ = *ep++;
+ add_blanks:
+	while(vlen-- > 0)
+		*value++ = ' ';
+	}