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The result of a memory allocation should always be checked, as we may
run under memory pressure where even a small allocation can fail. This
adds checking and error handling to a few cases where the allocation
wasn't checked for success. In the ftp case, the freeing of the path
variable is moved ahead of the allocation since there is little point
in keeping it around across the strdup, and the separation makes for
more readable code. In nwlib, the lock is aslo freed in the error path.
Also bumps the copyright years on affected files.
Closes #3084
Reviewed-by: Jay Satiro <raysatiro@yahoo.com>
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
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When a zeroed out allocation is required, use calloc() rather than
malloc() followed by an explicit memset(). The result will be the
same, but using calloc() everywhere increases consistency in the
codebase and avoids the risk of subtle bugs when code is injected
between malloc and memset by accident.
Closes https://github.com/curl/curl/pull/2497
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... they're already frowned upon in our source code style guide, this
now enforces the rule harder.
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In order to make the code style more uniform everywhere
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The function "free" is documented in the way that no action shall occur for
a passed null pointer. It is therefore not needed that a function caller
repeats a corresponding check.
http://stackoverflow.com/questions/18775608/free-a-null-pointer-anyway-or-check-first
This issue was fixed by using the software Coccinelle 1.0.0-rc24.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
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This commit renames lib/setup.h to lib/curl_setup.h and
renames lib/setup_once.h to lib/curl_setup_once.h.
Removes the need and usage of a header inclusion guard foreign
to libcurl. [1]
Removes the need and presence of an alarming notice we carried
in old setup_once.h [2]
----------------------------------------
1 - lib/setup_once.h used __SETUP_ONCE_H macro as header inclusion guard
up to commit ec691ca3 which changed this to HEADER_CURL_SETUP_ONCE_H,
this single inclusion guard is enough to ensure that inclusion of
lib/setup_once.h done from lib/setup.h is only done once.
Additionally lib/setup.h has always used __SETUP_ONCE_H macro to
protect inclusion of setup_once.h even after commit ec691ca3, this
was to avoid a circular header inclusion triggered when building a
c-ares enabled version with c-ares sources available which also has
a setup_once.h header. Commit ec691ca3 exposes the real nature of
__SETUP_ONCE_H usage in lib/setup.h, it is a header inclusion guard
foreign to libcurl belonging to c-ares's setup_once.h
The renaming this commit does, fixes the circular header inclusion,
and as such removes the need and usage of a header inclusion guard
foreign to libcurl. Macro __SETUP_ONCE_H no longer used in libcurl.
2 - Due to the circular interdependency of old lib/setup_once.h and the
c-ares setup_once.h header, old file lib/setup_once.h has carried
back from 2006 up to now days an alarming and prominent notice about
the need of keeping libcurl's and c-ares's setup_once.h in sync.
Given that this commit fixes the circular interdependency, the need
and presence of mentioned notice is removed.
All mentioned interdependencies come back from now old days when
the c-ares project lived inside a curl subdirectory. This commit
removes last traces of such fact.
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This reverts renaming and usage of lib/*.h header files done
28-12-2012, reverting 2 commits:
f871de0... build: make use of 76 lib/*.h renamed files
ffd8e12... build: rename 76 lib/*.h files
This also reverts removal of redundant include guard (redundant thanks
to changes in above commits) done 2-12-2013, reverting 1 commit:
c087374... curl_setup.h: remove redundant include guard
This also reverts renaming and usage of lib/*.c source files done
3-12-2013, reverting 3 commits:
13606bb... build: make use of 93 lib/*.c renamed files
5b6e792... build: rename 93 lib/*.c files
7d83dff... build: commit 13606bbfde follow-up 1
Start of related discussion thread:
http://curl.haxx.se/mail/lib-2013-01/0012.html
Asking for confirmation on pushing this revertion commit:
http://curl.haxx.se/mail/lib-2013-01/0048.html
Confirmation summary:
http://curl.haxx.se/mail/lib-2013-01/0079.html
NOTICE: The list of 2 files that have been modified by other
intermixed commits, while renamed, and also by at least one
of the 6 commits this one reverts follows below. These 2 files
will exhibit a hole in history unless git's '--follow' option
is used when viewing logs.
lib/curl_imap.h
lib/curl_smtp.h
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93 lib/*.c source files renamed to use our standard naming scheme.
This commit only does the file renaming.
----------------------------------------
renamed: lib/amigaos.c -> lib/curl_amigaos.c
renamed: lib/asyn-ares.c -> lib/curl_asyn_ares.c
renamed: lib/asyn-thread.c -> lib/curl_asyn_thread.c
renamed: lib/axtls.c -> lib/curl_axtls.c
renamed: lib/base64.c -> lib/curl_base64.c
renamed: lib/bundles.c -> lib/curl_bundles.c
renamed: lib/conncache.c -> lib/curl_conncache.c
renamed: lib/connect.c -> lib/curl_connect.c
renamed: lib/content_encoding.c -> lib/curl_content_encoding.c
renamed: lib/cookie.c -> lib/curl_cookie.c
renamed: lib/cyassl.c -> lib/curl_cyassl.c
renamed: lib/dict.c -> lib/curl_dict.c
renamed: lib/easy.c -> lib/curl_easy.c
renamed: lib/escape.c -> lib/curl_escape.c
renamed: lib/file.c -> lib/curl_file.c
renamed: lib/fileinfo.c -> lib/curl_fileinfo.c
renamed: lib/formdata.c -> lib/curl_formdata.c
renamed: lib/ftp.c -> lib/curl_ftp.c
renamed: lib/ftplistparser.c -> lib/curl_ftplistparser.c
renamed: lib/getenv.c -> lib/curl_getenv.c
renamed: lib/getinfo.c -> lib/curl_getinfo.c
renamed: lib/gopher.c -> lib/curl_gopher.c
renamed: lib/gtls.c -> lib/curl_gtls.c
renamed: lib/hash.c -> lib/curl_hash.c
renamed: lib/hmac.c -> lib/curl_hmac.c
renamed: lib/hostasyn.c -> lib/curl_hostasyn.c
renamed: lib/hostcheck.c -> lib/curl_hostcheck.c
renamed: lib/hostip.c -> lib/curl_hostip.c
renamed: lib/hostip4.c -> lib/curl_hostip4.c
renamed: lib/hostip6.c -> lib/curl_hostip6.c
renamed: lib/hostsyn.c -> lib/curl_hostsyn.c
renamed: lib/http.c -> lib/curl_http.c
renamed: lib/http_chunks.c -> lib/curl_http_chunks.c
renamed: lib/http_digest.c -> lib/curl_http_digest.c
renamed: lib/http_negotiate.c -> lib/curl_http_negotiate.c
renamed: lib/http_negotiate_sspi.c -> lib/curl_http_negotiate_sspi.c
renamed: lib/http_proxy.c -> lib/curl_http_proxy.c
renamed: lib/idn_win32.c -> lib/curl_idn_win32.c
renamed: lib/if2ip.c -> lib/curl_if2ip.c
renamed: lib/imap.c -> lib/curl_imap.c
renamed: lib/inet_ntop.c -> lib/curl_inet_ntop.c
renamed: lib/inet_pton.c -> lib/curl_inet_pton.c
renamed: lib/krb4.c -> lib/curl_krb4.c
renamed: lib/krb5.c -> lib/curl_krb5.c
renamed: lib/ldap.c -> lib/curl_ldap.c
renamed: lib/llist.c -> lib/curl_llist.c
renamed: lib/md4.c -> lib/curl_md4.c
renamed: lib/md5.c -> lib/curl_md5.c
renamed: lib/memdebug.c -> lib/curl_memdebug.c
renamed: lib/mprintf.c -> lib/curl_mprintf.c
renamed: lib/multi.c -> lib/curl_multi.c
renamed: lib/netrc.c -> lib/curl_netrc.c
renamed: lib/non-ascii.c -> lib/curl_non_ascii.c
renamed: lib/curl_non-ascii.h -> lib/curl_non_ascii.h
renamed: lib/nonblock.c -> lib/curl_nonblock.c
renamed: lib/nss.c -> lib/curl_nss.c
renamed: lib/nwlib.c -> lib/curl_nwlib.c
renamed: lib/nwos.c -> lib/curl_nwos.c
renamed: lib/openldap.c -> lib/curl_openldap.c
renamed: lib/parsedate.c -> lib/curl_parsedate.c
renamed: lib/pingpong.c -> lib/curl_pingpong.c
renamed: lib/polarssl.c -> lib/curl_polarssl.c
renamed: lib/pop3.c -> lib/curl_pop3.c
renamed: lib/progress.c -> lib/curl_progress.c
renamed: lib/qssl.c -> lib/curl_qssl.c
renamed: lib/rawstr.c -> lib/curl_rawstr.c
renamed: lib/rtsp.c -> lib/curl_rtsp.c
renamed: lib/security.c -> lib/curl_security.c
renamed: lib/select.c -> lib/curl_select.c
renamed: lib/sendf.c -> lib/curl_sendf.c
renamed: lib/share.c -> lib/curl_share.c
renamed: lib/slist.c -> lib/curl_slist.c
renamed: lib/smtp.c -> lib/curl_smtp.c
renamed: lib/socks.c -> lib/curl_socks.c
renamed: lib/socks_gssapi.c -> lib/curl_socks_gssapi.c
renamed: lib/socks_sspi.c -> lib/curl_socks_sspi.c
renamed: lib/speedcheck.c -> lib/curl_speedcheck.c
renamed: lib/splay.c -> lib/curl_splay.c
renamed: lib/ssh.c -> lib/curl_ssh.c
renamed: lib/sslgen.c -> lib/curl_sslgen.c
renamed: lib/ssluse.c -> lib/curl_ssluse.c
renamed: lib/strdup.c -> lib/curl_strdup.c
renamed: lib/strequal.c -> lib/curl_strequal.c
renamed: lib/strerror.c -> lib/curl_strerror.c
renamed: lib/strtok.c -> lib/curl_strtok.c
renamed: lib/strtoofft.c -> lib/curl_strtoofft.c
renamed: lib/telnet.c -> lib/curl_telnet.c
renamed: lib/tftp.c -> lib/curl_tftp.c
renamed: lib/timeval.c -> lib/curl_timeval.c
renamed: lib/transfer.c -> lib/curl_transfer.c
renamed: lib/url.c -> lib/curl_url.c
renamed: lib/version.c -> lib/curl_version.c
renamed: lib/warnless.c -> lib/curl_warnless.c
renamed: lib/wildcard.c -> lib/curl_wildcard.c
----------------------------------------
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76 private header files renamed to use our standard naming scheme.
This change affects 322 files in libcurl's source tree.
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If we use memory functions (malloc, free, strdup etc) in C sources in
libcurl and we fail to include curl_memory.h or memdebug.h we either
fail to properly support user-provided memory callbacks or the memory
leak system of the test suite fails.
After Ajit's report of a failure in the first category in http_proxy.c,
I spotted a few in the second category as well. These problems are now
tested for by test 1132 which runs a perl program that scans for and
attempts to check that we use the correct include files if a memory
related function is used in the source code.
Reported by: Ajit Dhumale
Bug: http://curl.haxx.se/mail/lib-2012-11/0125.html
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well proofed method suggested by Novell. This enables usage of the stub with language bindings.
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while () => while()
and some other minor re-indentings
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memory.h is included everywhere for this.
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