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| 55 | #include <uudeview.h> |
55 | #include <uudeview.h> |
| 56 | #include <uuint.h> |
56 | #include <uuint.h> |
| 57 | #include <fptools.h> |
57 | #include <fptools.h> |
| 58 | #include <uustring.h> |
58 | #include <uustring.h> |
| 59 | |
59 | |
| 60 | char * uuscan_id = "$Id: uuscan.c,v 1.16 2009/08/24 06:15:00 root Exp $"; |
60 | char * uuscan_id = "$Id: uuscan.c,v 1.17 2009/08/28 23:25:18 root Exp $"; |
| 61 | |
61 | |
| 62 | /* |
62 | /* |
| 63 | * Header fields we recognize as such. See RFC822. We add "From ", |
63 | * Header fields we recognize as such. See RFC822. We add "From ", |
| 64 | * the usual marker for a beginning of a new message, and a couple |
64 | * the usual marker for a beginning of a new message, and a couple |
| 65 | * of usual MDA, News and MIME headers. |
65 | * of usual MDA, News and MIME headers. |
| 66 | * We make a distinction of MIME headers as we need the difference |
66 | * We make a distinction of MIME headers as we need the difference |
| 67 | * to scan the bodies from partial multipart messages. |
67 | * to scan the bodies from partial multipart messages. |
| 68 | */ |
68 | */ |
| 69 | |
69 | |
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70 | #define LSTR(s) { sizeof (s) - 1, s } |
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71 | |
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72 | struct lstr { |
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73 | int len; |
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74 | const char *str; |
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75 | }; |
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76 | |
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77 | #define MAX_KNOWNHEADERLEN 28 /* max. length of a known header */ |
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78 | |
| 70 | static char *knownmsgheaders[] = { |
79 | static struct lstr knownheaders[] = { |
| 71 | "From ", "Return-Path:", "Received:", "Reply-To:", |
80 | /* "From " handled in IsKnownHeader */ |
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81 | |
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82 | /* knownmsgheaders */ |
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83 | LSTR ("Return-Path"), LSTR ("Received"), LSTR ("Reply-To"), |
| 72 | "From:", "Sender:", "Resent-Reply-To:", "Resent-From:", |
84 | LSTR ("From"), LSTR ("Sender"), LSTR ("Resent-Reply-To"), LSTR ("Resent-From"), |
| 73 | "Resent-Sender:", "Date:", "Resent-Date:", "To:", |
85 | LSTR ("Resent-Sender"), LSTR ("Date"), LSTR ("Resent-Date"), LSTR ("To"), |
| 74 | "Resent-To:", "Cc:", "Bcc:", "Resent-bcc:", |
86 | LSTR ("Resent-To"), LSTR ("Cc"), LSTR ("Bcc"), LSTR ("Resent-bcc"), |
| 75 | "Message-ID:", "Resent-Message-Id:", "In-Reply-To:", |
87 | LSTR ("Message-ID"), LSTR ("Resent-Message-Id"), LSTR ("In-Reply-To"), |
| 76 | "References:", "Keywords:", "Subject:", "Comments:", |
88 | LSTR ("References"), LSTR ("Keywords"), LSTR ("Subject"), LSTR ("Comments"), |
| 77 | |
89 | |
| 78 | "Delivery-Date:", "Posted-Date:", "Received-Date:", |
90 | LSTR ("Delivery-Date"), LSTR ("Posted-Date"), LSTR ("Received-Date"), |
| 79 | "Precedence:", |
91 | LSTR ("Precedence"), |
| 80 | |
92 | |
| 81 | "Path:", "Newsgroups:", "Organization:", "Lines:", |
93 | LSTR ("Path"), LSTR ("Newsgroups"), LSTR ("Organization"), LSTR ("Lines"), |
| 82 | "NNTP-Posting-Host:", |
94 | LSTR ("NNTP-Posting-Host"), |
| 83 | NULL |
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| 84 | }; |
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| 85 | |
95 | |
| 86 | static char *knownmimeheaders[] = { |
96 | /* knownminehaders */ |
| 87 | "Mime-Version:", "Content-Transfer-Encoding:", |
97 | LSTR ("Mime-Version"), LSTR ("Content-Transfer-Encoding"), |
| 88 | "Content-Type:", "Content-Disposition:", |
98 | LSTR ("Content-Type"), LSTR ("Content-Disposition"), |
| 89 | "Content-Description:", "Content-Length:", |
99 | LSTR ("Content-Description"), LSTR ("Content-Length") |
| 90 | NULL |
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| 91 | }; |
100 | }; |
| 92 | |
101 | |
| 93 | /* |
102 | /* |
| 94 | * for MIME (plaintext) parts without filename |
103 | * for MIME (plaintext) parts without filename |
| 95 | */ |
104 | */ |
| … | |
… | |
| 525 | */ |
534 | */ |
| 526 | |
535 | |
| 527 | static int |
536 | static int |
| 528 | IsKnownHeader (char *line) |
537 | IsKnownHeader (char *line) |
| 529 | { |
538 | { |
| 530 | char **iter = knownmsgheaders; |
539 | const char *sep; |
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540 | int len, i; |
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541 | |
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542 | /* "From " handled specially */ |
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543 | /* we assume the buffer is at least 5 bytes long */ |
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544 | if (line [4] == ' ' && line [1] == 'r' && line [2] == 'o' && line [3] == 'm' |
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545 | && (line [0] == 'f' || line [0] == 'F')) |
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546 | return 1; |
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547 | |
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548 | sep = memchr (line, ':', MAX_KNOWNHEADERLEN); |
| 531 | |
549 | |
| 532 | /* fast reject, the majority of calls are simple rejects */ |
550 | /* fast reject, the majority of calls are simple rejects */ |
| 533 | if (!strchr (line, ':')) |
551 | if (!sep) |
| 534 | return 0; |
552 | return 0; |
| 535 | |
553 | |
| 536 | while (iter && *iter) { |
554 | len = sep - line; /* length of part before ':' */ |
| 537 | if (_FP_strnicmp (line, *iter, strlen (*iter)) == 0) |
555 | |
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556 | for (i = 0; i < sizeof (knownheaders) / sizeof (knownheaders [0]); ++i) |
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557 | if (len == knownheaders [i].len && _FP_strnicmp (line, knownheaders [i].str, len) == 0) |
| 538 | return 1; |
558 | return 1; |
| 539 | iter++; |
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| 540 | } |
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| 541 | |
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| 542 | iter = knownmimeheaders; |
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| 543 | |
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| 544 | while (iter && *iter) { |
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| 545 | if (_FP_strnicmp (line, *iter, strlen (*iter)) == 0) |
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| 546 | return 2; |
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| 547 | iter++; |
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| 548 | } |
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| 549 | |
559 | |
| 550 | return 0; |
560 | return 0; |
| 551 | } |
561 | } |
| 552 | |
562 | |
| 553 | /* |
563 | /* |
