Import sources from 2011-03-30 iso image

1 files changed, 36 insertions, 0 deletions

diff --git a/sys/src/cmd/postscript/common/tempnam.c b/sys/src/cmd/postscript/common/tempnam.c
new file mode 100755
index 000000000..00d819cab
--- /dev/null
+++ b/sys/src/cmd/postscript/common/tempnam.c
@@ -0,0 +1,36 @@
+#if defined(V9) || defined(BSD4_2) || defined(plan9)
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+char *
+tempnam(char *dir, char *pfx)
+{
+	int pid;
+	char *tnm;
+	struct stat stb;
+	static int seq = 0;
+
+	if (dir == NULL)
+		dir = ".";
+#ifdef plan9
+	/* our access emulation has a race when checking for write access */
+	if (access(dir, R_OK|X_OK) == -1)
+#else
+	if (access(dir, R_OK|W_OK|X_OK) == -1)
+#endif
+		return NULL;
+	pid = getpid();
+	tnm = malloc(strlen(dir) + 1 + strlen(pfx) + 2*20 + 1);
+	if (tnm == NULL)
+		return NULL;
+	do {
+		sprintf(tnm, "%s/%s.%d.%d", dir, pfx, pid, seq++);
+		errno = 0;
+	} while (stat(tnm, &stb) >= 0 && seq < 256);
+	return tnm;
+}
+#endif