From: Junio C Hamano Date: Sun, 25 May 2008 08:16:05 +0000 (-0700) Subject: mailinfo: apply the same fix not to lose NULs in BASE64 and QP codepaths X-Git-Tag: v1.5.6-rc0~2^2~1 X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=9aa23094c281d1333eecb6bb1bd84b1599197d68;p=git.git mailinfo: apply the same fix not to lose NULs in BASE64 and QP codepaths Signed-off-by: Junio C Hamano --- diff --git a/builtin-mailinfo.c b/builtin-mailinfo.c index f0c420976..e1e094f29 100644 --- a/builtin-mailinfo.c +++ b/builtin-mailinfo.c @@ -434,6 +434,7 @@ static int read_one_header_line(char *line, int sz, FILE *in) static int decode_q_segment(char *in, char *ot, unsigned otsize, char *ep, int rfc2047) { + char *otbegin = ot; char *otend = ot + otsize; int c; while ((c = *in++) != 0 && (in <= ep)) { @@ -453,13 +454,14 @@ static int decode_q_segment(char *in, char *ot, unsigned otsize, char *ep, int r *ot++ = c; } *ot = 0; - return 0; + return (ot - otbegin); } static int decode_b_segment(char *in, char *ot, unsigned otsize, char *ep) { /* Decode in..ep, possibly in-place to ot */ int c, pos = 0, acc = 0; + char *otbegin = ot; char *otend = ot + otsize; while ((c = *in++) != 0 && (in <= ep)) { @@ -505,7 +507,7 @@ static int decode_b_segment(char *in, char *ot, unsigned otsize, char *ep) } } *ot = 0; - return 0; + return (ot - otbegin); } /* @@ -623,21 +625,20 @@ static void decode_header(char *it, unsigned itsize) convert_to_utf8(it, itsize, ""); } -static void decode_transfer_encoding(char *line, unsigned linesize) +static int decode_transfer_encoding(char *line, unsigned linesize, int inputlen) { char *ep; switch (transfer_encoding) { case TE_QP: - ep = line + strlen(line); - decode_q_segment(line, line, linesize, ep, 0); - break; + ep = line + inputlen; + return decode_q_segment(line, line, linesize, ep, 0); case TE_BASE64: - ep = line + strlen(line); - decode_b_segment(line, line, linesize, ep); - break; + ep = line + inputlen; + return decode_b_segment(line, line, linesize, ep); case TE_DONTCARE: - break; + default: + return inputlen; } } @@ -806,17 +807,19 @@ static void handle_body(void) /* process any boundary lines */ if (content_top->boundary && is_multipart_boundary(line)) { /* flush any leftover */ - if ((transfer_encoding == TE_BASE64) && - (np != newline)) { + if (np != newline) handle_filter(newline, sizeof(newline), - strlen(newline)); - } + np - newline); if (!handle_boundary()) return; } /* Unwrap transfer encoding */ - decode_transfer_encoding(line, sizeof(line)); + len = decode_transfer_encoding(line, sizeof(line), len); + if (len < 0) { + error("Malformed input line"); + return; + } switch (transfer_encoding) { case TE_BASE64: @@ -830,13 +833,13 @@ static void handle_body(void) break; } - /* this is a decoded line that may contain + /* + * This is a decoded line that may contain * multiple new lines. Pass only one chunk * at a time to handle_filter() */ - do { - while (*op != '\n' && *op != 0) + while (op < line + len && *op != '\n') *np++ = *op++; *np = *op; if (*np != 0) { @@ -846,9 +849,10 @@ static void handle_body(void) rc = handle_filter(newline, sizeof(newline), np - newline); np = newline; } - } while (*op != 0); - /* the partial chunk is saved in newline and - * will be appended by the next iteration of fgets + } while (op < line + len); + /* + * The partial chunk is saved in newline and will be + * appended by the next iteration of read_line_with_nul(). */ break; } diff --git a/t/t5100-mailinfo.sh b/t/t5100-mailinfo.sh index 5a4610b86..a8b78ebf7 100755 --- a/t/t5100-mailinfo.sh +++ b/t/t5100-mailinfo.sh @@ -34,4 +34,13 @@ test_expect_success 'respect NULs' ' ' +test_expect_success 'Preserve NULs out of MIME encoded message' ' + + git mailsplit -d5 -o. ../t5100/nul-b64.in && + cmp ../t5100/nul-b64.in 00001 && + git mailinfo msg patch <00001 && + cmp ../t5100/nul-b64.expect patch + +' + test_done diff --git a/t/t5100/nul-b64.expect b/t/t5100/nul-b64.expect new file mode 100644 index 000000000..d7d680f63 Binary files /dev/null and b/t/t5100/nul-b64.expect differ diff --git a/t/t5100/nul-b64.in b/t/t5100/nul-b64.in new file mode 100644 index 000000000..16540d961 --- /dev/null +++ b/t/t5100/nul-b64.in @@ -0,0 +1,37 @@ +From 667d8940e719cddee1cfe237cbbe215e20270b09 Mon Sep 17 00:00:00 2001 +From: Junio C Hamano +Date: Sun, 25 May 2008 00:38:18 -0700 +Subject: [PATCH] second +Content-Transfer-Encoding: base64 + +LS0tCiBmaWxlIHwgIEJpbiAxMzU3IC0+IDEzNTcgYnl0ZXMKIDEgZmlsZXMgY2hhbmdlZCwg +MCBpbnNlcnRpb25zKCspLCAwIGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2ZpbGUgYi9m +aWxlCmluZGV4IDc3MzYxZDguLjllMDJiZTYgMTAwNjQ0Ci0tLSBhL2ZpbGUKKysrIGIvZmls +ZQpAQCAtMSwxMiArMSwxMiBAQAogTG9yZW0gaXBzdW0gZG9sb3Igc2l0IGFtZXQsIGNvbnNl +Y3RldHVlciBhZGlwaXNjaW5nIGVsaXQuIFN1c3BlbmRpc3NlCiBzaXQgYW1ldCB0dXJwaXMg +ZWdldCBlc3QgY3Vyc3VzIGxhb3JlZXQuIEFsaXF1YW0gbWF1cmlzLiBQcmFlc2VudAotdm9s +dXRwYXQuIFByb2luIGluIHB1cnVzLiBOdWxsYSB1cm5hIHNhcGllbiwgZGFwaWJ1cyBzaXQg +YW1ldCwKK3ZvbHV0cGF0LiBQcm9pbiBpbiBwdXJ1cy4gTnVsbGEgdXJuYSBzYXBpZW4sIGRh +cGkAdXMgc2l0IGFtZXQsCiBoZW5kcmVyaXQgbmVjLCB0ZW1wdXMgZXUsIG1pLiBVdCBwb3J0 +YSwgbGVvIGlkIHRpbmNpZHVudCB1bGxhbWNvcnBlciwKLXZlbGl0IGZlbGlzIHRyaXN0aXF1 +ZSBhbnRlLCBhdCBsb2JvcnRpcyBkaWFtIHBlZGUgdXQgZHVpLiBQcm9pbiBhYwordmVsaXQg +ZmVsaXMgdHJpc3RpcXVlIGFudGUsIGF0IGxvAG9ydGlzIGRpYW0gcGVkZSB1dCBkdWkuIFBy +b2luIGFjCiBsZWN0dXMuIERvbmVjIGF0IG1hc3NhIGFjIGlwc3VtIGhlbmRyZXJpdCBzb2xs +aWNpdHVkaW4uIE5hbSBkaWN0dW0KIG5pc2kgc2VkIG1pLiBEdWlzIHNlZCBhbnRlLiBVdCB2 +aXRhZSBlc3QgdXQgZHVpIHVsdHJpY2llcyBkaWduaXNzaW0uCiAKLUluIHZlbCBvZGlvIGVn +ZXQgbmlzbCBjb252YWxsaXMgdm9sdXRwYXQuIE1vcmJpIHZpdGFlIG5pYmguIE51bGxhbQor +SW4gdmVsIG9kaW8gZWdldCBuaXNsIGNvbnZhbGxpcyB2b2x1dHBhdC4gTW9yAGkgdml0YWUg +bmkAaC4gTnVsbGFtCiBhY2N1bXNhbiwgZG9sb3IgcXVpcyBhbGlxdWFtIHNjZWxlcmlzcXVl +LCBlbGl0IGVuaW0gY29uZGltZW50dW0KIG1hdXJpcywgbm9uIHRyaXN0aXF1ZSBtYXVyaXMg +dHVycGlzIGV0IG1hdXJpcy4gVXQgbm9uIG5pc2wuIE5hbSBkaWFtCiBtaSwgc2VtcGVyIHBv +c3VlcmUsIGVsZWlmZW5kIHV0LCBhdWN0b3IgdmVsLCBlcmF0LiBTZWQgcG9zdWVyZQpAQCAt +MTYsNyArMTYsNyBAQCBzZWQgZXN0LiBFdGlhbSBkaWFtIGZlbGlzLCBmZXJtZW50dW0gZWdl +dCwgYWRpcGlzY2luZyBhdCwgcG9zdWVyZSBpbiwKIGR1aS4gRXRpYW0gbHVjdHVzLgogCiBO +dWxsYSBpZCBhdWd1ZS4gTmFtIGlhY3VsaXMgYWNjdW1zYW4gbmlzaS4gU3VzcGVuZGlzc2Ug +cG90ZW50aS4gTnVuYwotdmFyaXVzIGF1Z3VlIG5lYyBvcmNpLiBVdCBjb25kaW1lbnR1bSBk +b2xvciBzYWdpdHRpcyBuaWJoLiBTdXNwZW5kaXNzZQordmFyaXVzIGF1Z3VlIG5lYyBvcmNp +LiBVdCBjb25kaW1lbnR1bSBkb2xvciBzYWdpdHRpcyBuaQBoLiBTdXNwZW5kaXNzZQogdGVt +cG9yIGxlY3R1cyBzZWQgbWFnbmEuIFN1c3BlbmRpc3NlIHBvdGVudGkuIE51bGxhbSB0ZW1w +b3IgaXBzdW0uIFNlZAogbW9sZXN0aWUgdGVsbHVzLiBQaGFzZWxsdXMgbGlndWxhLiBJbiB2 +ZWhpY3VsYSB1bHRyaWNlcwogbmlzaS4gU3VzcGVuZGlzc2UgZmVsaXMgYXVndWUsIHBlbGxl +bnRlc3F1ZSBhdCwgZGljdHVtIHZpdmVycmEsCi0tIAoxLjUuNS4xLjU0MC5nNTc3ODAKCg==