int islimbo(void);
int istga(void);
int ismp3(void);
+int ismp4(void);
int ismung(void);
int isp9bit(void);
int isp9font(void);
int istar(void);
int isface(void);
int isexec(void);
-int p9bitnum(uchar*);
+int isudiff(void);
+int p9bitnum(char*, int*);
int p9subfont(uchar*);
void print_utf(void);
void type(char*, int);
iff, /* interchange file format (strings) */
longoff, /* recognizable by 4 bytes at some offset */
isoffstr, /* recognizable by string at some offset */
+ isudiff, /* unified diff output */
isrfc822, /* email file */
ismbox, /* mail box */
istar, /* recognizable by tar checksum */
- ishtml, /* html keywords */
iscint, /* compiler/assembler intermediate */
+ ishtml, /* html keywords */
islimbo, /* limbo source */
isc, /* c & alef compiler key words */
isas, /* assembler key words */
isicocur, /* windows icon or cursor file */
isface, /* ascii face file */
istga,
+ ismp4,
ismp3,
/* last resorts */
}
fname = file;
if ((fd = open(file, OREAD)) < 0) {
- print("cannot open: %r\n");
+ fprint(2, "cannot open: %r\n");
return;
}
filetype(fd);
free(mbuf);
mbuf = dirfstat(fd);
if(mbuf == nil){
- print("cannot stat: %r\n");
+ fprint(2, "cannot stat: %r\n");
return;
}
if(mbuf->mode & DMDIR) {
/* may be reading a pipe on standard input */
nbuf = readn(fd, buf, sizeof(buf)-1);
if(nbuf < 0) {
- print("cannot read: %r\n");
+ fprint(2, "cannot read: %r\n");
return;
}
if(nbuf == 0) {
070707, 0xFFFF, "cpio archive", "application/x-cpio",
0x2F7, 0xFFFF, "tex dvi", "application/dvi",
0xfaff, 0xfeff, "mp3 audio", "audio/mpeg",
+ 0xf0ff, 0xf6ff, "aac audio", "audio/mpeg",
/* 0xfeedface: this could alternately be a Next Plan 9 boot image */
0xcefaedfe, 0xFFFFFFFF, "32-bit power Mach-O executable", OCTET,
/* 0xfeedfacf */
*/
0xad4e5cd1, 0xFFFFFFFF, "venti arena", OCTET,
0x2bb19a52, 0xFFFFFFFF, "paq archive", OCTET,
+ 0x1a53454e, 0xFFFFFFFF, "NES ROM", OCTET,
+ /* tcpdump pcap file */
+ 0xa1b2c3d4, 0xFFFFFFFF, "pcap file", "application/vnd.tcpdump.pcap",
+ 0xd4c3b2a1, 0xFFFFFFFF, "pcap file", "application/vnd.tcpdump.pcap",
+ 0xa1b23c4d, 0xFFFFFFFF, "pcap file", "application/vnd.tcpdump.pcap",
+ 0x4d3cb2a1, 0xFFFFFFFF, "pcap file", "application/vnd.tcpdump.pcap",
};
int
256*1024, 0xc75e5cd1, 0xFFFFFFFF, "venti index section", OCTET,
128*1024, 0x89ae7637, 0xFFFFFFFF, "fossil write buffer", OCTET,
4, 0x31647542, 0xFFFFFFFF, "OS X finder properties", OCTET,
+ 0x100, 0x41474553, 0xFFFFFFFF, "SEGA ROM", OCTET,
+ 0x1fc, 0xAA550000, 0xFFFF0000, "bootable disk image", OCTET,
};
int
"\x1f\x9d", "compressed", 2, "application/x-compress",
"\x1f\x8b", "gzip compressed", 2, "application/x-gzip",
"BZh", "bzip2 compressed", 3, "application/x-bzip2",
- "!<arch>\n__.SYMDEF", "archive random library", 16, "application/octet-stream",
- "!<arch>\n", "archive", 8, "application/octet-stream",
- "070707", "cpio archive - ascii header", 6, "application/octet-stream",
- "#!/bin/rc", "rc executable file", 9, "text/plain",
- "#!/bin/sh", "sh executable file", 9, "text/plain",
+ "!<arch>\n__.SYMDEF", "archive random library", 16, OCTET,
+ "!<arch>\n", "archive", 8, OCTET,
+ "070707", "cpio archive - ascii header", 6, OCTET,
+ "#!/bin/rc", "rc executable file", 9, PLAIN,
+ "#!/bin/sh", "sh executable file", 9, PLAIN,
"%!", "postscript", 2, "application/postscript",
"\004%!", "postscript", 3, "application/postscript",
"x T post", "troff output for post", 8, "application/troff",
"BM", "bmp", 2, "image/bmp",
"\xD0\xCF\x11\xE0\xA1\xB1\x1A\xE1", "microsoft office document", 8, "application/doc",
"<MakerFile ", "FrameMaker file", 11, "application/framemaker",
- "\033E\033", "HP PCL printer data", 3, OCTET,
- "\033&", "HP PCL printer data", 2, OCTET,
- "\033%-12345X", "HPJCL file", 9, "application/hpjcl",
+ "\033E\033", "HP PCL printer data", 3, OCTET,
+ "\033&", "HP PCL printer data", 2, OCTET,
+ "\033%-12345X", "HPJCL file", 9, "application/hpjcl",
"\033Lua", "Lua bytecode", 4, OCTET,
"ID3", "mp3 audio with id3", 3, "audio/mpeg",
"OggS", "ogg audio", 4, "audio/ogg",
".snd", "sun audio", 4, "audio/basic",
"\211PNG", "PNG image", 4, "image/png",
- "P1\n", "ppm", 3, "image/ppm",
- "P2\n", "ppm", 3, "image/ppm",
- "P3\n", "ppm", 3, "image/ppm",
- "P4\n", "ppm", 3, "image/ppm",
- "P5\n", "ppm", 3, "image/ppm",
- "P6\n", "ppm", 3, "image/ppm",
+ "P1\n", "ppm", 3, "image/ppm",
+ "P2\n", "ppm", 3, "image/ppm",
+ "P3\n", "ppm", 3, "image/ppm",
+ "P4\n", "ppm", 3, "image/ppm",
+ "P5\n", "ppm", 3, "image/ppm",
+ "P6\n", "ppm", 3, "image/ppm",
"/* XPM */\n", "xbm", 10, "image/xbm",
".HTML ", "troff -ms input", 6, "text/troff",
".LP", "troff -ms input", 3, "text/troff",
".if", "troff input", 3, "text/troff",
".nr", "troff input", 3, "text/troff",
".tr", "troff input", 3, "text/troff",
- "vac:", "venti score", 4, "text/plain",
+ "vac:", "venti score", 4, PLAIN,
"-----BEGIN CERTIFICATE-----\n",
- "pem certificate", -1, "text/plain",
+ "pem certificate", -1, PLAIN,
"-----BEGIN TRUSTED CERTIFICATE-----\n",
- "pem trusted certificate", -1, "text/plain",
+ "pem trusted certificate", -1, PLAIN,
"-----BEGIN X509 CERTIFICATE-----\n",
- "pem x.509 certificate", -1, "text/plain",
- "subject=/C=", "pem certificate with header", -1, "text/plain",
+ "pem x.509 certificate", -1, PLAIN,
+ "subject=/C=", "pem certificate with header", -1, PLAIN,
"process snapshot ", "process snapshot", -1, "application/snapfs",
"d8:announce", "torrent file", 11, "application/x-bittorrent",
"[playlist]", "playlist", 10, "application/x-scpls",
"#EXTM3U", "playlist", 7, "audio/x-mpegurl",
"BEGIN:VCARD\r\n", "vCard", 13, "text/directory;profile=vcard",
"BEGIN:VCARD\n", "vCard", 12, "text/directory;profile=vcard",
+ "AT&T", "DjVu document", 4, "image/vnd.djvu",
+ "Extended module: ", "XM audio", 17, "audio/xm",
+ "MThd", "midi audio", 4, "audio/midi",
+ "MUS\x1a", "mus audio", 4, "audio/mus",
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\x00\x00\x00\xbb\x11\x22\x00\x44\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xaa\x99\x55\x66", "Xilinx bitstream (not byteswappped)", 52, OCTET,
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xbb\x00\x00\x00\x44\x00\x22\x11\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\x66\x55\x99\xaa", "Xilinx bitstream (byteswappped)", 52, OCTET,
0,0,0,0
};
struct FILE_STRING;
} offstrs[] = {
32*1024, "\001CD001\001", "ISO9660 CD image", 7, "application/x-iso9660-image",
+ 32*4, "DICM", "DICOM medical imaging data", 4, "application/dicom",
0, 0, 0, 0, 0
};
else if (strncmp((char*)buf+8, "AVI ", 4) == 0)
print("%s\n", mime? "video/avi": "avi video");
else
- print("%s\n", mime? "application/octet-stream": "riff file");
+ print("%s\n", mime? OCTET : "riff file");
return 1;
}
return 0;
0,
};
+int
+isudiff(void)
+{
+ char *p;
+
+ p = (char*)buf;
+ if((p = strstr(p, "diff")) != nil)
+ if((p = strchr(p, '\n')) != nil)
+ if(strncmp(++p, "--- ", 4) == 0)
+ if((p = strchr(p, '\n')) != nil)
+ if(strncmp(++p, "+++ ", 4) == 0)
+ if((p = strchr(p, '\n')) != nil)
+ if(strncmp(++p, "@@ ", 3) == 0){
+ print("%s\n", mime ? "text/plain" : "unified diff output");
+ return 1;
+ }
+ return 0;
+}
+
int
ishtml(void)
{
return 0;
*q = 0;
if(strncmp(p, "From ", 5) == 0 && strstr(p, " remote from ") == nil){
- print("%s\n", mime ? "text/plain" : "mail box");
+ print("%s\n", mime ? PLAIN : "mail box");
return 1;
}
*q = '\n';
return 0;
}
+int
+ismp4(void)
+{
+ if(nbuf <= 12)
+ return 0;
+ if(memcmp(&buf[4], "ftyp", 4) != 0)
+ return 0;
+ if(memcmp(&buf[8], "isom", 4) == 0){
+ print("%s\n", mime ? "video/mp4" : "mp4 video");
+ return 1;
+ }
+ if(memcmp(&buf[8], "M4A ", 4) == 0){
+ print("%s\n", mime ? "audio/m4a" : "m4a audio");
+ return 1;
+ }
+ return 0;
+}
+
/*
* low entropy means encrypted
*/
*/
#define P9BITLEN 12
int
-p9bitnum(uchar *bp)
+p9bitnum(char *s, int *v)
{
- int n, c, len;
+ char *es;
- len = P9BITLEN;
- while(*bp == ' ') {
- bp++;
- len--;
- if(len <= 0)
- return -1;
- }
- n = 0;
- while(len > 1) {
- c = *bp++;
- if(!isdigit(c))
- return -1;
- n = n*10 + c-'0';
- len--;
- }
- if(*bp != ' ')
+ if(s[P9BITLEN-1] != ' ')
+ return -1;
+ s[P9BITLEN-1] = '\0';
+ *v = strtol(s, &es, 10);
+ s[P9BITLEN-1] = ' ';
+ if(es != &s[P9BITLEN-1])
return -1;
- return n;
+ return 0;
}
int
if(s == es)
return -1;
if('0'<=*s && *s<='9')
- return 1<<strtol(s, 0, 0);
+ return 1<<strtol(s, nil, 0);
*newp = 1;
d = 0;
while(s<es && *s!=' '){
- s++; /* skip letter */
- d += strtoul(s, &s, 10);
+ if(strchr("rgbkamx", *s) == nil)
+ return -1;
+ s++;
+ if('0'<=*s && *s<='9')
+ d += strtoul(s, &s, 10);
+ else
+ return -1;
}
if(d % 8 == 0 || 8 % d == 0)
isp9bit(void)
{
int dep, lox, loy, hix, hiy, px, new, cmpr;
- ulong t;
long len;
char *newlabel;
uchar *cp;
cp = buf;
cmpr = 0;
- newlabel = "old ";
-
if(memcmp(cp, "compressed\n", 11) == 0) {
cmpr = 1;
cp = buf + 11;
}
- dep = depthof((char*)cp + 0*P9BITLEN, &new);
- if(new)
- newlabel = "";
- lox = p9bitnum(cp + 1*P9BITLEN);
- loy = p9bitnum(cp + 2*P9BITLEN);
- hix = p9bitnum(cp + 3*P9BITLEN);
- hiy = p9bitnum(cp + 4*P9BITLEN);
- if(dep < 0 || lox < 0 || loy < 0 || hix < 0 || hiy < 0)
+ if((dep = depthof((char*)cp + 0*P9BITLEN, &new)) < 0)
+ return 0;
+ newlabel = new ? "" : "old ";
+ if(p9bitnum((char*)cp + 1*P9BITLEN, &lox) < 0)
+ return 0;
+ if(p9bitnum((char*)cp + 2*P9BITLEN, &loy) < 0)
+ return 0;
+ if(p9bitnum((char*)cp + 3*P9BITLEN, &hix) < 0)
+ return 0;
+ if(p9bitnum((char*)cp + 4*P9BITLEN, &hiy) < 0)
+ return 0;
+
+ hix -= lox;
+ hiy -= loy;
+ if(hix <= 0 || hiy <= 0)
return 0;
if(dep < 8){
px = 8/dep; /* pixels per byte */
/* set l to number of bytes of data per scan line */
- if(lox >= 0)
- len = (hix+px-1)/px - lox/px;
- else{ /* make positive before divide */
- t = (-lox)+px-1;
- t = (t/px)*px;
- len = (t+hix+px-1)/px;
- }
+ len = (hix+px-1)/px;
}else
- len = (hix-lox)*dep/8;
- len *= hiy - loy; /* col length */
+ len = hix*dep/8;
+ len *= hiy; /* col length */
len += 5 * P9BITLEN; /* size of initial ascii */
/*
* for subfont, the subfont header should follow immediately.
*/
if (cmpr) {
- print(mime ? "image/p9bit\n" : "Compressed %splan 9 image or subfont, depth %d\n",
- newlabel, dep);
+ print(mime ? "image/p9bit\n" : "Compressed %splan 9 image or subfont, depth %d, size %dx%d\n",
+ newlabel, dep, hix, hiy);
return 1;
}
/*
*/
if (len != 0 && (mbuf->length == 0 || mbuf->length == len ||
mbuf->length > len && mbuf->length < len+P9BITLEN)) {
- print(mime ? "image/p9bit\n" : "%splan 9 image, depth %d\n", newlabel, dep);
+ print(mime ? "image/p9bit\n" : "%splan 9 image, depth %d, size %dx%d\n",
+ newlabel, dep, hix, hiy);
return 1;
}
if (p9subfont(buf+len)) {
- print(mime ? "image/p9bit\n" : "%ssubfont file, depth %d\n", newlabel, dep);
+ print(mime ? "image/p9bit\n" : "%ssubfont file, depth %d, size %dx%d\n",
+ newlabel, dep, hix, hiy);
return 1;
}
return 0;
if (p+3*P9BITLEN > buf+sizeof(buf))
return 1;
- n = p9bitnum(p + 0*P9BITLEN); /* char count */
- if (n < 0)
+ if (p9bitnum((char*)p + 0*P9BITLEN, &n) < 0) /* char count */
return 0;
- h = p9bitnum(p + 1*P9BITLEN); /* height */
- if (h < 0)
+ if (p9bitnum((char*)p + 1*P9BITLEN, &h) < 0) /* height */
return 0;
- a = p9bitnum(p + 2*P9BITLEN); /* ascent */
- if (a < 0)
+ if (p9bitnum((char*)p + 2*P9BITLEN, &a) < 0) /* ascent */
return 0;
- return 1;
+ if(n > 0 && h > 0 && a >= 0)
+ return 1;
+ return 0;
}
#define WHITESPACE(c) ((c) == ' ' || (c) == '\t' || (c) == '\n')
}
}
if (i) {
- print(mime ? "text/plain\n" : "font file\n");
+ print("%s\n", mime ? PLAIN : "font file");
return 1;
}
return 0;
print("face image depth %d\n", ldepth);
return 1;
}
-
projects / plan9front.git / blobdiff