commit be9624e6ff398d7cbdccbd7e20c191d5b9a0fb1c Author: Alexander Vdolainen Date: Sun Mar 19 23:32:27 2023 +0200 first working version commit; diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..55dbd95 --- /dev/null +++ b/.gitignore @@ -0,0 +1,47 @@ +*~ +*.o +*.a +*.lo +*.la +*.dvi +*.synctex.gz +.deps +.libs +autom4te.cache/ +Makefile +Makefile.in +aclocal.m4 +config.guess +config.h +config.h.in +config.log +config.status +config.sub +configure +depcomp +install-sh +intltool-extract.in +intltool-merge.in +intltool-update.in +libtool +ltmain.sh +missing +mkinstalldirs +stamp-h1 +.emacs.desktop +nbproject +config.guess.dh-orig +config.sub.dh-orig +aclocal +coq +*.log +*.crt +*.pc +compile +test-driver +*.pem +mdbutool +\#* +INSTALL +maildirmond +exifdate diff --git a/AUTHORS b/AUTHORS new file mode 100644 index 0000000..4094fda --- /dev/null +++ b/AUTHORS @@ -0,0 +1,77 @@ + * Alexander Vdolainen + * PGP: +-----BEGIN PGP PUBLIC KEY BLOCK----- + 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Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Lesser General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. You must make sure that they, too, receive or can get the +source code. And you must show them these terms so they know their +rights. + + We protect your rights with two steps: (1) copyright the software, and +(2) offer you this license which gives you legal permission to copy, +distribute and/or modify the software. + + Also, for each author's protection and ours, we want to make certain +that everyone understands that there is no warranty for this free +software. If the software is modified by someone else and passed on, we +want its recipients to know that what they have is not the original, so +that any problems introduced by others will not reflect on the original +authors' reputations. + + Finally, any free program is threatened constantly by software +patents. We wish to avoid the danger that redistributors of a free +program will individually obtain patent licenses, in effect making the +program proprietary. To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. You may modify your copy or copies of the Program or any portion +of it, thus forming a work based on the Program, and copy and +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) You must cause the modified files to carry prominent notices + stating that you changed the files and the date of any change. + + b) You must cause any work that you distribute or publish, that in + whole or in part contains or is derived from the Program or any + part thereof, to be licensed as a whole at no charge to all third + parties under the terms of this License. + + c) If the modified program normally reads commands interactively + when run, you must cause it, when started running for such + interactive use in the most ordinary way, to print or display an + announcement including an appropriate copyright notice and a + notice that there is no warranty (or else, saying that you provide + a warranty) and that users may redistribute the program under + these conditions, and telling the user how to view a copy of this + License. (Exception: if the Program itself is interactive but + does not normally print such an announcement, your work based on + the Program is not required to print an announcement.) + +These requirements apply to the modified work as a whole. If +identifiable sections of that work are not derived from the Program, +and can be reasonably considered independent and separate works in +themselves, then this License, and its terms, do not apply to those +sections when you distribute them as separate works. But when you +distribute the same sections as part of a whole which is a work based +on the Program, the distribution of the whole must be on the terms of +this License, whose permissions for other licensees extend to the +entire whole, and thus to each and every part regardless of who wrote it. + +Thus, it is not the intent of this section to claim rights or contest +your rights to work written entirely by you; rather, the intent is to +exercise the right to control the distribution of derivative or +collective works based on the Program. + +In addition, mere aggregation of another work not based on the Program +with the Program (or with a work based on the Program) on a volume of +a storage or distribution medium does not bring the other work under +the scope of this License. + + 3. You may copy and distribute the Program (or a work based on it, +under Section 2) in object code or executable form under the terms of +Sections 1 and 2 above provided that you also do one of the following: + + a) Accompany it with the complete corresponding machine-readable + source code, which must be distributed under the terms of Sections + 1 and 2 above on a medium customarily used for software interchange; or, + + b) Accompany it with a written offer, valid for at least three + years, to give any third party, for a charge no more than your + cost of physically performing source distribution, a complete + machine-readable copy of the corresponding source code, to be + distributed under the terms of Sections 1 and 2 above on a medium + customarily used for software interchange; or, + + c) Accompany it with the information you received as to the offer + to distribute corresponding source code. (This alternative is + allowed only for noncommercial distribution and only if you + received the program in object code or executable form with such + an offer, in accord with Subsection b above.) + +The source code for a work means the preferred form of the work for +making modifications to it. For an executable work, complete source +code means all the source code for all modules it contains, plus any +associated interface definition files, plus the scripts used to +control compilation and installation of the executable. However, as a +special exception, the source code distributed need not include +anything that is normally distributed (in either source or binary +form) with the major components (compiler, kernel, and so on) of the +operating system on which the executable runs, unless that component +itself accompanies the executable. + +If distribution of executable or object code is made by offering +access to copy from a designated place, then offering equivalent +access to copy the source code from the same place counts as +distribution of the source code, even though third parties are not +compelled to copy the source along with the object code. + + 4. You may not copy, modify, sublicense, or distribute the Program +except as expressly provided under this License. Any attempt +otherwise to copy, modify, sublicense or distribute the Program is +void, and will automatically terminate your rights under this License. +However, parties who have received copies, or rights, from you under +this License will not have their licenses terminated so long as such +parties remain in full compliance. + + 5. You are not required to accept this License, since you have not +signed it. However, nothing else grants you permission to modify or +distribute the Program or its derivative works. These actions are +prohibited by law if you do not accept this License. Therefore, by +modifying or distributing the Program (or any work based on the +Program), you indicate your acceptance of this License to do so, and +all its terms and conditions for copying, distributing or modifying +the Program or works based on it. + + 6. Each time you redistribute the Program (or any work based on the +Program), the recipient automatically receives a license from the +original licensor to copy, distribute or modify the Program subject to +these terms and conditions. You may not impose any further +restrictions on the recipients' exercise of the rights granted herein. +You are not responsible for enforcing compliance by third parties to +this License. + + 7. If, as a consequence of a court judgment or allegation of patent +infringement or for any other reason (not limited to patent issues), +conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot +distribute so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you +may not distribute the Program at all. For example, if a patent +license would not permit royalty-free redistribution of the Program by +all those who receive copies directly or indirectly through you, then +the only way you could satisfy both it and this License would be to +refrain entirely from distribution of the Program. + +If any portion of this section is held invalid or unenforceable under +any particular circumstance, the balance of the section is intended to +apply and the section as a whole is intended to apply in other +circumstances. + +It is not the purpose of this section to induce you to infringe any +patents or other property right claims or to contest validity of any +such claims; this section has the sole purpose of protecting the +integrity of the free software distribution system, which is +implemented by public license practices. Many people have made +generous contributions to the wide range of software distributed +through that system in reliance on consistent application of that +system; it is up to the author/donor to decide if he or she is willing +to distribute software through any other system and a licensee cannot +impose that choice. + +This section is intended to make thoroughly clear what is believed to +be a consequence of the rest of this License. + + 8. If the distribution and/or use of the Program is restricted in +certain countries either by patents or by copyrighted interfaces, the +original copyright holder who places the Program under this License +may add an explicit geographical distribution limitation excluding +those countries, so that distribution is permitted only in or among +countries not thus excluded. In such case, this License incorporates +the limitation as if written in the body of this License. + + 9. The Free Software Foundation may publish revised and/or new versions +of the General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + +Each version is given a distinguishing version number. If the Program +specifies a version number of this License which applies to it and "any +later version", you have the option of following the terms and conditions +either of that version or of any later version published by the Free +Software Foundation. If the Program does not specify a version number of +this License, you may choose any version ever published by the Free Software +Foundation. + + 10. If you wish to incorporate parts of the Program into other free +programs whose distribution conditions are different, write to the author +to ask for permission. For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. diff --git a/Makefile.am b/Makefile.am new file mode 100644 index 0000000..f9759d2 --- /dev/null +++ b/Makefile.am @@ -0,0 +1,18 @@ +## Process this file with automake to produce Makefile.in + +SUBDIRS = src + +exifdatedocdir = ${prefix}/doc/exifdate +exifdatedoc_DATA = \ + README\ + COPYING\ + AUTHORS\ + NEWS + +EXTRA_DIST = $(exifdatedoc_DATA) + +clean-local: + +# Remove doc directory on uninstall +uninstall-local: + -rm -r $(exifdatedocdir) diff --git a/NEWS b/NEWS new file mode 100644 index 0000000..e69de29 diff --git a/README b/README new file mode 100644 index 0000000..e69de29 diff --git a/TODO b/TODO new file mode 100644 index 0000000..e69de29 diff --git a/VERSION b/VERSION new file mode 100644 index 0000000..8acdd82 --- /dev/null +++ b/VERSION @@ -0,0 +1 @@ +0.0.1 diff --git a/autogen.sh b/autogen.sh new file mode 100755 index 0000000..01c075c --- /dev/null +++ b/autogen.sh @@ -0,0 +1,9 @@ +#!/bin/sh + +echo "Generating configure files... may take a while." + +autoreconf --install --force && \ + echo "Preparing was successful if there was no error messages above." && \ + echo "Now type:" && \ + echo " ./configure && make" && \ + echo "Run './configure --help' for more information" diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..f5d3728 --- /dev/null +++ b/configure.ac @@ -0,0 +1,26 @@ +dnl Process this file with autoconf to produce a configure script. + +AC_INIT(exifdate, m4_esyscmd([tr -d '\n' < VERSION])) + +AC_CONFIG_HEADERS([config.h]) + +AM_INIT_AUTOMAKE([1.11] [foreign]) + +AM_SILENT_RULES([yes]) + +AC_PROG_CC + +LT_INIT + +dnl ***************** +dnl ***** options ***** +dnl ***************** + +dnl checking for dependencies + +dnl check for the libexif +PKG_CHECK_MODULES(LIBEXIF, [libexif]) + +AC_OUTPUT([ +Makefile +src/Makefile]) diff --git a/src/Makefile.am b/src/Makefile.am new file mode 100644 index 0000000..aff3db8 --- /dev/null +++ b/src/Makefile.am @@ -0,0 +1,15 @@ +## AUTOMAKE_OPTIONS = foreign + +AM_CPPFLAGS = \ + -DPACKAGE_LOCALE_DIR=\""$(localedir)"\" \ + -DPACKAGE_SRC_DIR=\""$(srcdir)"\" \ + -DPACKAGE_DATA_DIR=\""$(pkgdatadir)"\" \ + -DCNFPATH=\""$(prefix)/etc"\" + +AM_CFLAGS = -Wall -g + +bin_PROGRAMS = exifdate + +exifdate_SOURCES = exifdate.c + +exifdate_LDADD = $(LIBS) $(LIBEXIF_LIBS) diff --git a/src/exifdate.c b/src/exifdate.c new file mode 100644 index 0000000..1ad551d --- /dev/null +++ b/src/exifdate.c @@ -0,0 +1,215 @@ +/* + * EXIF date tool + * + * (c) Alexander Vdolainen 2023 + * + * this is free software: you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published + * by the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * this is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * See the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see ."; + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "../config.h" + +#ifndef TOOL_FULLNAME +#define TOOL_FULLNAME "Jpeg EXIF data date tool" +#endif + +typedef enum { + EDT_MODIFY = 0, + EDT_DISPLAY = 1, +} edt_mode_t; + +static void display_help(FILE *o, const char *exec_name) +{ + fprintf(o, "%s: %s\n\n", exec_name, TOOL_FULLNAME); + /* usage options */ + fprintf(o, "Usage:\n"); + fprintf(o, "\t%s\n", exec_name); + fprintf(o, "\t%s \n", exec_name); + + fprintf(o, "\nOptions:\n"); + fprintf(o, "\t%-36s Display date and time from exif data only, don't update file creation date.\n", + "-d | --display-date"); + fprintf(o, "\t%-36s Display help.\n", "-h | --help"); + fprintf(o, "\t%-36s Display version information.\n\n", "-v | --version"); + + return; +} + +static time_t exifdt_tm(const char *dtbuf) +{ + struct tm tddt; + char buf[5], *b = (char *)dtbuf; + + if(!dtbuf) return (time_t) -1; + if(strlen(dtbuf) < 18) return (time_t) -1; + + memset(&tddt, 0, sizeof(struct tm)); + /* year */ + memset(buf, 0, 5); + strncpy(buf, dtbuf, 4); + tddt.tm_year = atoi(buf) - 1900; + /* month */ + memset(buf, 0, 5); + b = strchr(b, ':'); + if(!b) return (time_t) -1; + else b++; + strncpy(buf, b, 2); + tddt.tm_mon = atoi(buf) - 1; + /* day */ + memset(buf, 0, 5); + b = strchr(b, ':'); + if(!b) return (time_t) -1; + else b++; + strncpy(buf, b, 2); + tddt.tm_mday = atoi(buf); + /* hour */ + memset(buf, 0, 5); + b = strchr(b, ' '); + if(!b) return (time_t) -1; + else b++; + strncpy(buf, b, 2); + tddt.tm_hour = atoi(buf); + /* minute */ + memset(buf, 0, 5); + b = strchr(b, ':'); + if(!b) return (time_t) -1; + else b++; + strncpy(buf, b, 2); + tddt.tm_min = atoi(buf); + /* second */ + memset(buf, 0, 5); + b = strchr(b, ':'); + if(!b) return (time_t) -1; + else b++; + strncpy(buf, b, 2); + tddt.tm_sec = atoi(buf); + + return mktime(&tddt); +} + +int main(int argc, char **argv) +{ + int opt, fargs = 0, i = 0; + edt_mode_t mode = EDT_MODIFY; + char **fn_name = NULL; + ExifData *ef; + ExifEntry *entry; + char dtbuf[1024]; + time_t exif_dt; + struct utimbuf ntimes; + + while(1) { + int option_index = 0; + static struct option long_options[] = + { + {"display-date", no_argument, NULL, 'd'}, + {"help", no_argument, NULL, 'h'}, + {"version", no_argument, NULL, 'v'}, + {NULL, 0, NULL, 0}, + }; + + if((opt = getopt_long(argc, argv, "dhv", long_options, &option_index)) == -1) + break; + + switch(opt) { + case 'd': + mode = EDT_DISPLAY; + break; + case 'h': + display_help(stdout, argv[0]); + return 0; + break; + case 'v': + fprintf(stdout, "%s: %s v.: %s\n", argv[0], TOOL_FULLNAME, VERSION); + return 0; + break; + } + } + + /* pick up other arguments */ + if(optind < argc) { + fargs = argc - optind; + if(!(fn_name = malloc(sizeof(uintptr_t)*(fargs + 1)))) { + __enomem: + fprintf(stderr, "Not enough memory.\n"); + return -1; + } else memset(fn_name, 0, sizeof(uintptr_t)*(fargs + 1)); + + while(optind < argc) { + if(!(fn_name[i] = strdup((const char *)argv[optind++]))) { + for(; i >= 0; i--) { + if(fn_name[i]) free(fn_name[i]); + } + free(fn_name); + goto __enomem; + } else i++; + } + } else { + /* no files has been provided */ + fprintf(stderr, "Missing filename(s) argument.\n"); + display_help(stdout, argv[0]); + return 1; + } + + /* got thru the list */ + i = 0; + while(fn_name[i] != NULL) { + ef = exif_data_new_from_file(fn_name[i]); + if(!ef) fprintf(stderr, "File not found or no EXIF data exists.\n"); + else { + /* read date and time */ + entry = exif_content_get_entry(ef->ifd[EXIF_IFD_EXIF], EXIF_TAG_DATE_TIME_ORIGINAL); + if(entry) { + exif_entry_get_value(entry, dtbuf, sizeof(dtbuf)); + if(*dtbuf) { + switch(mode) { + case EDT_DISPLAY: + fprintf(stdout, "%s date and time: %s\n",fn_name[i], dtbuf); + break; + case EDT_MODIFY: + /* convert exif format to timeval */ + exif_dt = exifdt_tm(dtbuf); + if(exif_dt == (time_t) -1) + fprintf(stderr, "%s: Date and time data in exif is invalid.\n", fn_name[i]); + else { /* modify mtime */ + ntimes.actime = exif_dt; + ntimes.modtime = exif_dt; + utime(fn_name[i], &ntimes); + } + break; + } + } else fprintf(stdout, "%s: No date and time information exists in exif.\n", + fn_name[i]); + } + exif_data_unref(ef); + } + free(fn_name[i]); + i++; + } + free(fn_name); + + return 0; +}