1 files changed, 119 insertions, 0 deletions
diff --git a/sysutils/procmap/files/procmap.c b/sysutils/procmap/files/procmap.c
new file mode 100644
index 000000000000..860f7d04864b
--- /dev/null
+++ b/sysutils/procmap/files/procmap.c
@@ -0,0 +1,119 @@
+/****************************************************************************
+ *
+ * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice(s), this list of conditions and the following disclaimer as
+ *    the first lines of this file unmodified other than the possible
+ *    addition of one or more copyright notices.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice(s), this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************
+ *
+ * Reliably print the entire contents of the proc filesystem's "map" files.
+ *
+ * $FreeBSD$
+ *
+ ****************************************************************************/
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <errno.h>
+
+/* The longest possible path is "/proc/curproc/map". */
+#define MAXPATH 18
+#define MINBUF 4096
+
+int
+main(int argc, char **argv)
+{
+	char	*buf;
+	char	path[MAXPATH] = "/proc/";
+	int	mfd, bytes, size = MINBUF;
+	
+	if (argc != 2) {
+		fprintf(stderr, "usage: procmap {<pid> | curproc}\n");
+		exit(1);
+	} else if (strlen(argv[1]) > 7) {
+		fprintf(stderr, "procmap: <pid> too long.\n");
+		fprintf(stderr, "usage: procmap {<pid> | curproc}\n");
+		exit(1);
+	}
+
+	/* Open the map file. */
+	snprintf(path, MAXPATH, "/proc/%s/map", argv[1]);
+	mfd = open(path, O_RDONLY);
+	if (mfd < 0) {
+		fprintf(stderr, "Unable to open() %s: %s\n",
+		    path, strerror(errno));
+		exit(1);
+	}
+	
+	/*
+	 * Start out with a MINBUF byte buffer, and double the buffer size until
+	 * it's big enough to read the whole map at once.
+	 */
+	buf = (char *)malloc(size);
+	if (buf == NULL) {
+		fprintf(stderr, "malloc() error\n");
+		exit(1);
+	}
+	bzero(buf, size);
+	
+	for (;;) {
+		if (lseek(mfd, 0, SEEK_SET) < 0) {
+			fprintf(stderr, "lseek() error: %s\n",
+				strerror(errno));
+			exit(1);
+		}
+		/* Leave space for a NULL terminator at the end of buf. */
+		if (bytes = read(mfd, buf, size - 1) < 0) {
+			if (errno == EFBIG) {
+				/* Buffer to small; try again. */
+				size <<= 1;
+				buf = (char *)realloc(buf, size);
+				if (buf == NULL) {
+					fprintf(stderr, "malloc() error\n");
+					exit(1);
+				}
+				bzero(buf, size);
+			} else {
+				fprintf(stderr, "read() error: %s\n",
+				    strerror(errno));
+				exit(1);
+			}
+		} else {
+			/* Success.  The results are in buf. */
+			break;
+		}
+	}
+
+	/*
+	 * Write out a header, then the result.
+	 *
+	 * format: start, end, resident, private resident, cow, access, type.
+	 */
+	printf("start end resident priv_res cow access type\n");
+	printf("%s", buf);
+	
+	return 0;
+}