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path: root/epan/tvbuff.c
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2005-09-18assert that tvb is not NULLUlf Lamping1-0/+1
svn path=/trunk/; revision=15858
2005-09-11Replace tvb_memcpy() calls that extract IPv4 addresses into a guint32,Guy Harris1-1/+0
and that extract IPv6 addresses into a "struct e_in6_addr", with tvb_get_ipv4() and tvb_get_ipv6() calls - except for some that we remove, by using proto_tree_add_item(), rather than replacing. Have epan/tvbuff.h include epan/ipv6-utils.h, to define "struct e_in6_addr" (not necessary to declare the tvbuff routines, but including it there means "struct e_in6_addr" is guaranteed to be defined before those declarations, so we don't get compiler complaints if we define it *after* those declarations). svn path=/trunk/; revision=15758
2005-09-10Add "tvb_get_ipv4()" and "tvb_get_ipv6()" addresses, to fetch IPv4 andGuy Harris1-0/+25
IPv6 addresses. Use "tvb_get_ipv4()" in the WINS Replication dissector, so that it gets the right answer on little-endian *AND* big-endian machines. svn path=/trunk/; revision=15753
2005-08-17snprintf -> g_snprintfUlf Lamping1-2/+2
svn path=/trunk/; revision=15398
2005-08-10add new function tvb_get_ephemeral_stringz()Ronnie Sahlberg1-0/+26
svn path=/trunk/; revision=15273
2005-08-10rename ep_tvb_fake_unicode() to tvb_get_ephemeral_faked_unicode() and update ↵Ronnie Sahlberg1-6/+3
the README file. svn path=/trunk/; revision=15271
2005-08-10rename ep_tvb_get_string() to tvb_get_ephemeral_string() asnd update the ↵Ronnie Sahlberg1-1/+1
documentation in README.developer svn path=/trunk/; revision=15270
2005-07-28add an ep version of tvb_fake_unicode()Ronnie Sahlberg1-0/+38
svn path=/trunk/; revision=15128
2005-07-26new functions:Luis Ontanon1-2/+30
ep_tvb_memdup() ep_alloc0() ep_strsplit() add all of the ep_ allocators to libethereal.def svn path=/trunk/; revision=15100
2005-07-24addRonnie Sahlberg1-0/+32
ep_tvb_get_string that acts the same as tvb_get_string but the buffer returned need not be freed. svn path=/trunk/; revision=15024
2005-07-21When trying to handle gzip-compressed data, don't seek past the end of our Gerald Combs1-0/+6
compressed data buffer. Fixes bug 288. svn path=/trunk/; revision=14981
2005-04-28Use tvb_ensure_bytes_exist() in tvb_get_string() instead of throwing an Gerald Combs1-2/+1
exception ourselves. Fixes bug 130. svn path=/trunk/; revision=14220
2005-03-28In tvb_get_string(), throw an exception if our length is less than zero.Gerald Combs1-2/+6
Add a message block length check to the AIM dissector. svn path=/trunk/; revision=13955
2005-01-05From Chris Maynard: free up the z_stream we've allocated before failureGuy Harris1-0/+2
returns. (The error returns shouldn't happen in practice, as the GLib memory allocators never return a null pointer, they just abort the program, but if we're going to be checking for failure and returning, we should do the right thing anyway.) svn path=/trunk/; revision=12957
2004-12-30Add a "tvb_bytes_to_str_punct()" routine, which wrapsGuy Harris1-0/+11
"bytes_to_str_punct()", and use it instead of extracting the bytes and formatting them by hand. svn path=/trunk/; revision=12876
2004-11-12From Charles Levert: in "tvb_fake_unicode()", convert non-ASCIIGuy Harris1-4/+4
characters to '.'. svn path=/trunk/; revision=12515
2004-08-22Add "tvb_get_ntoh64()" and "tvb_get_letoh64()" routines to fetch 64-bitGuy Harris1-0/+18
integers. Make FT_INT64 and FT_UINT64 add numerical values, rather than byte-array values, to the protocol tree, and add routines to add specified 64-bit integer values to the protocol tree. Use those routines in the RSVP dissector. svn path=/trunk/; revision=11796
2004-08-02Most developers have only 10 fingers, not 16. :-)Guy Harris1-3/+3
svn path=/trunk/; revision=11581
2004-08-02From Kelly Byrd: fix tvb_uncompress() for GZIP encoded content.Olivier Biot1-3/+3
svn path=/trunk/; revision=11579
2004-07-18Set the svn:eol-style property on all text files to "native", so thatGuy Harris1-1/+1
they have LF at the end of the line on UN*X and CR/LF on Windows; hopefully this means that if a CR/LF version is checked in on Windows, the CRs will be stripped so that they show up only when checked out on Windows, not on UN*X. svn path=/trunk/; revision=11400
2004-05-10From Jerry Talkington: speed up tvb_uncompress() by increasing the minimalOlivier Biot1-17/+69
and default uncompression buffer. svn path=/trunk/; revision=10839
2004-05-07Memory management of tvb_uncompress() needs tvb_set_free_cb().Olivier Biot1-1/+2
svn path=/trunk/; revision=10817
2004-05-06From Kendy Kutzner: a char should be compared with '\0', not NULL.Olivier Biot1-3/+3
svn path=/trunk/; revision=10806
2004-05-05From Jerry Talkington:Olivier Biot1-1/+244
- Helper functions for uncompressing compressed tvbuffers. - Compressed content coding dissection in HTTP. svn path=/trunk/; revision=10799
2004-03-23Use "tvb_format_text()" to display strings, so we handle non-printableGuy Harris1-1/+25
characters. Some strings appear to be null-padded; add a "tvb_format_stringzpad()" routine to handle them, so that we don't show the padding characters as "\000". svn path=/trunk/; revision=10461
2004-02-19Constify a bunch of stuff.Guy Harris1-25/+33
svn path=/trunk/; revision=10106
2004-02-01Make "tvb_strneql()" take a "gchar *" rather than a "guint8 *" as theGuy Harris1-6/+6
string argument. Add some casts to squelch compiler warnings. svn path=/trunk/; revision=9951
2004-02-01packet-dcerpc-afs4int.cJörg Mayer1-3/+3
svn path=/trunk/; revision=9938
2004-01-23Change return type of tvb_format_text from guint8* to gchar*.Jörg Mayer1-2/+2
Remove now unnecessary casts in two files. svn path=/trunk/; revision=9801
2003-12-24In "tvb_ensure_bytes_remaining()", throw ReportedBoundsError, notGuy Harris1-2/+2
BoundsError, if the offset is just past the end of the reported data (because we're ensuring that there actually *is* a byte there, and, even according to the reported length, it isn't). svn path=/trunk/; revision=9444
2003-12-23Have "tvb_ensure_length_remaining()" throw the appropriate exception ifGuy Harris1-1/+12
there's no data remaining - its callers largely depend on it doing so. That means that the BEEP dissector doesn't have to check for it returning 0. svn path=/trunk/; revision=9433
2003-12-03Replace two expensive macros with a much simpler mechanismRonnie Sahlberg1-14/+21
to prevent memory leaks due to exceptions. makes my tethereal testcase ~1% faster. svn path=/trunk/; revision=9153
2003-12-03performance updateRonnie Sahlberg1-11/+2
replace tvb_raw_offset() which is essentially a simple assignment and which is called a lot with a macro. this makes my tethereal testcase 2-3% faster. svn path=/trunk/; revision=9152
2003-12-02Move the definition of the tvbuff_t structure and friends to tvbuff.hRonnie Sahlberg1-68/+1
so that we can change tvb_get_ds_tvb() into a macro. This function was a single line assignment and was called a lot. This made tethereal ~2.5% faster in one testcase I use. svn path=/trunk/; revision=9141
2003-09-28"compute_offset_length()" must, if it returns FALSE, and "exception" isGuy Harris1-5/+5
non-null, set "*exception" to the appropriate exception - its callers rely on it. Now that it does that, there's no need for "check_offset_length()" to check for a length of -1, as "compute_offset_length()" does so, and therefore "check_offset_length_no_exception()" does so. svn path=/trunk/; revision=8562
2003-09-10Make tvb_find_tvb() return -1 if either tvb length is 0. Otherwise, anGerald Combs1-1/+5
assertion happens 'xxxx contains ""'. svn path=/trunk/; revision=8450
2003-08-27Add a "contains" operator for byte-strings, strings, and tvbuffs (protocols).Gilbert Ramirez1-1/+31
The search uses a naive approach; more work is required to add a Boyer-Moore Search algorithm. svn path=/trunk/; revision=8280
2003-08-08A bufsize of 0 makes no sense in either "tvb_get_nstringz()" orGuy Harris1-11/+8
"tvb_get_nstringz0()", as it means there's no room even for the terminating NUL; abort if "_tvb_get_nstringz()" is passed a bufsize of 0. Don't throw an exception in "tvb_get_nstringz0()" if "_tvb_get_nstringz()" returns 0 - that just means we have an empty string. svn path=/trunk/; revision=8150
2003-06-12Add new routines:Guy Harris1-10/+63
tvb_get_string() - takes a tvbuff, an offset, and a length as arguments, allocates a buffer big enough to hold a string with the specified number of bytes plus an added null terminator (i.e., length+1), copies the specified number of bytes from the tvbuff, at the specified offset, to that buffer and puts in a null terminator, and returns a pointer to that buffer (or throws an exception before allocating the buffer if that many bytes aren't available in the tvbuff); tvb_get_stringz() - takes a tvbuff, an offset, and a pointer to a "gint" as arguments, gets the size of the null-terminated string starting at the specified offset in the tvbuff (throwing an exception if the null terminator isn't found), allocates a buffer big enough to hold that string, copies the string to that buffer, and returns a pointer to that buffer and stores the length of the string (including the terminating null) in the variable pointed to by the "gint" pointer. Replace many pieces of code allocating a buffer and copying a string with calls to "tvb_get_string()" (for one thing, "tvb_get_string()" doesn't require you to remember that the argument to "tvb_get_nstringz0()" is the size of the buffer into which you're copying the string, which might be the length of the string to be copied *plus 1*). Don't use fixed-length buffers for null-terminated strings (even if the code that generates those packets has a #define to limit the length of the string). Use "tvb_get_stringz()", instead. In some cases where a value is fetched but is only used to pass an argument to a "proto_tree_add_XXX" routine, use "proto_tree_add_item()" instead. svn path=/trunk/; revision=7859
2003-06-09Fix "tvb_strneql()", "tvb_strncaseeql()", and "tvb_memeql()" not toGuy Harris1-6/+24
throw an exception if there aren't enough bytes in the tvbuff to compare. svn path=/trunk/; revision=7813
2003-06-04Use "tvb_ensure_bytes_exist()" to check, in "tvb_fake_unicode()", toGuy Harris1-7/+3
make sure we have the entire string, rather than fetching the last character. svn path=/trunk/; revision=7783
2003-05-19More tvb_get_nstringz0() fixes. Timo Sirainen pointed out that BadGerald Combs1-1/+7
Things can happen if we pass a zero buffer length to tvb_get_nstringz0(). Throw an exception if this happens. In various dissectors make sure the tvb_get_nstringz0()'s buffer length is greater than zero. svn path=/trunk/; revision=7688
2003-04-30Modify tvb_get_nstringz*() to behave more like snprintf(). Make changesGerald Combs1-26/+26
where necessary to reflect the new behavior. svn path=/trunk/; revision=7607
2003-04-28Fix several buffer and integer overflow issues discovered by Timo Sirainen.Gerald Combs1-12/+22
tvbuff.c: Lots of existing code assumes that you can safely do the following: #define MAX_BUF 64 guint8 *buf[MAX_BUF]; ... tvb_get_nstringz0 (tvb, offset, MAX_BUF, buf, &bytes_copied); In reality, tvb_get_nstringz*() can potentially write one byte past "buf". Modify _tvb_get_nstringz() not to do that. packet-ppp.c: Check for a valid BAP suboption length. packet-mount.c: Fix a possible integer overflow in dissect_group(). svn path=/trunk/; revision=7590
2003-02-24Rename "fake_unicode()" to "tvb_fake_unicode()" as it works on a tvbuff,Guy Harris1-1/+36
give it a byte-order argument, and move it to "epan/tvbuff.c". Use it to handle UCS-2 strings in version 1 of the Service Location Protocol. In SRVLOC V1, use registered fields that are already there for SRVLOC V2, and add some as needed. Fix some field names. svn path=/trunk/; revision=7186
2002-08-28Removed trailing whitespaces from .h and .c files using theJörg Mayer1-8/+8
winapi_cleanup tool written by Patrik Stridvall for the wine project. svn path=/trunk/; revision=6116
2002-08-02Replace the types from sys/types.h and netinet/in.h by their glib.hJörg Mayer1-2/+2
equivalents for the epan/ directory but leave winsock2.h in inet_pton.c and inet_ntop.c for now (can't estimate the consequences). svn path=/trunk/; revision=5928
2002-07-17Add an extra argument to "tvb_find_line_end()", which specifies what itGuy Harris1-12/+52
should do if it doesn't find an EOL; if FALSE, it behaves as before, returning values that treat the line as ending at the end of the tvbuff, and if TRUE, it returns -1, so its caller can do segment reassembly until it gets the EOL. Add an option to the SMTP dissector to do segment reassembly, and do segment reassembly of the first line. svn path=/trunk/; revision=5891
2002-05-13Add a "tvb_ensure_bytes_exist()", which is like "tvb_bytes_exist()" onlyGuy Harris1-5/+63
it throws the appropriate exception if the bytes don't exist. Use it in the GIOP and ASN.1 code to check whether the bytes to be copied to a buffer exist before allocating the buffer. Make "check_offset_length_no_exception()" check for an overflow, so that it can be used in "tvb_ensure_bytes_exist()" and do all the checking that the code "tvb_ensure_bytes_exist()" replaces did. Make "get_CDR_wchar()" return a "gint", so that if the length octet it fetched has a value between 128 and 255, the length can be returned correctly. Fix some comments not to specify the exception thrown by various routines that can throw various exceptions. svn path=/trunk/; revision=5453
2002-05-05Have "tvb_ensure_length_remaining()" directly callGuy Harris1-11/+8
"compute_offset_length()", and throw the exception it returns, rather than calling "tvb_length_remaining()" and throw BoundsError if it returns -1; this allows us to add additional exceptions without having to change "tvb_ensure_length_remaining()". Make "_tvb_get_nstringz()" static, as it's not used outside "tvbuff.c". svn path=/trunk/; revision=5397
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