3 # post_upload.htm example:
6 # <form action=/cgi-bin/httpd_post_upload.cgi method=post enctype=multipart/form-data>
7 # File to upload: <input type=file name=file1> <input type=submit>
11 # -----------------------------29995809218093749221856446032^M
12 # Content-Disposition: form-data; name="file1"; filename="..."^M
13 # Content-Type: application/octet-stream^M
14 # ^M <--------- headers end with empty line
18 # ^M <--------- extra empty line
19 # -----------------------------29995809218093749221856446032--^M
25 # CGI output must start with at least empty line (or headers)
32 while read -r line; do
33 test x"$line" = x"" && break
34 test x"$line" = x"$CR" && break
39 # We need to delete the tail of "\r\ndelim_line--\r\n"
40 tail_len=$((${#delim_line} + 6))
42 # Get and check file size
43 filesize=`stat -c"%s" "$file"`
44 test "$filesize" -lt "$tail_len" && exit 1
46 # Check that tail is correct
47 dd if="$file" skip=$((filesize - tail_len)) bs=1 count=1000 >"$file.tail" 2>/dev/null
48 printf "\r\n%s--\r\n" "$delim_line" >"$file.tail.expected"
49 if ! diff -q "$file.tail" "$file.tail.expected" >/dev/null; then
50 printf "<html>\n<body>\nMalformed file upload"
54 rm "$file.tail.expected"
57 dd of="$file" seek=$((filesize - tail_len)) bs=1 count=0 >/dev/null 2>/dev/null
59 printf "<html>\n<body>\nFile upload has been accepted"