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* Use strcmp() instead of strncmp()Lukas Fleischer2012-03-125-36/+36
| | | | | | | | | strncmp() isn't intended to be a secure strcmp() replacement, it is designed to be used if you want to compare the first n characters of two strings. Since we always compare character pointers with string literals, switch to using strcmp() everywhere. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Avoid redundant window resets in config menuLukas Fleischer2012-03-121-1/+4
| | | | | | | There's no need to reset windows unless the layout was changed. Move wins_reset() to a separate branch to reflect this. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Avoid redundant virtual screen updatesLukas Fleischer2012-03-122-3/+0
| | | | | | | | | | Remove some redundant wnoutrefresh() invocations. There's no need to copy a window to the virtual screen unless doupdate() is invoked immediately afterwards. This reduces flicker when browsing in the calendar panel. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Break out configuration main menuLukas Fleischer2012-03-023-49/+58
| | | | | | | This was the only big block of code left in our main loop. Move it to a separate function, making the main loop a bit clearer. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Revamp key bindings displayLukas Fleischer2012-03-024-69/+96
| | | | | | | | | | | | | Refactor the logic inside keys_display_bindings_bar() and remove the need to place the "show next page" key binding at the right positions. This used to be a pain to maintain, since we always had to move key bindings around when introducing a new key. Fix this by passing the actual key bindings in an array and using a separate parameter for the "show next page" key binding (which is automatically inserted at the right places from now on). Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Add a read-only optionLukas Fleischer2012-02-245-18/+38
| | | | | | | We don't save any configuration nor items if this is set. This should be used with care, and hence there's no short option for this. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* src/io.c: Remove C89 incompatible commentLukas Fleischer2012-02-201-1/+1
| | | | | | | Make commenting style consistent with everywhere else. Use "/* [...] */" instead of "// [...]". Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* {src,test}/Makefile.am: Enable pedantic warningsLukas Fleischer2012-02-191-0/+2
| | | | | | | | Now that we're fully POSIX compliant and fixed up some minor issues with ISO C99, use "-std=c99 -pedantic -D_POSIX_C_SOURCE=200809L" as default build flags for calcurse and the test suite. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Fix up fscanf() format stringsLukas Fleischer2012-02-192-4/+4
| | | | | | | All members of the tm structure are signed integers. Stick to using the correct fscanf() format specifiers for these. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Fix hash table issues with ISO C99Lukas Fleischer2012-02-193-13/+18
| | | | | | | | | | ISO C99 forbids unnamed structs/unions and nested functions. Move the "HTABLE_HEAD" and "HTABLE_GENERATE" parts out of the function body and place them at the very top of the file (where function definitions are allowed). Also, remove the unnamed struct from "htable.h" (which was useless anyway). Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Fix POSIX complianceLukas Fleischer2012-02-192-0/+6
| | | | | | | | | | | * "WAIT_MYPGRP" isn't POSIX'ish. Relying on this caused compilation issues in certain environments (e.g. under Cygwin). As a workaround, define "WAIT_MYPGRP" explicitly if it's undefined. * "P_tmpdir" is an XSI extension. Don't try use it if it isn't available. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Remove all usages of bzero() and bcopy()Lukas Fleischer2012-02-195-13/+13
| | | | | | | | | The bzero() and bcopy() functions are deprecated and were removed from the POSIX standard in IEEE Std. 1003.1-2008. Remove all usages of bzero()/bcopy() and replace them by appropriate memset()/memmove() calls. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Fix up strncat() usageLukas Fleischer2012-02-184-8/+7
| | | | | | | | | | | | | | | The last argument to strncat() should not be the total buffer length; it should be the space remaining: The strncat() function shall append not more than n bytes (a null byte and bytes that follow it are not appended) from the array pointed to by s2 to the end of the string pointed to by s1. The initial byte of s2 overwrites the null byte at the end of s1. A terminating null byte is always appended to the result. This patch fixes a couple of potential buffer overflow vulnerabilities. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* src/io.c: Use fork_exec() instead of system()Lukas Fleischer2012-02-181-3/+4
| | | | | | | Speeds up execution, prevents failures when pager or log file contains spaces, fixes a warning seen with "-Wunused-result". Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Don't chomp on error in ical_readline_init()Lukas Fleischer2012-02-181-4/+6
| | | | | | | Skip the newline check if fgets() returns a NULL string. Fixes another warning seen with "-Wunused-result". Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Add stricter syntax checking to io_load_*()Lukas Fleischer2012-02-181-33/+41
| | | | | | | | | | Be more restrictive with what we allow in data files and bail out if a line doesn't conform to our specification, especially in regard to separators. This prevents unexpected behavior when a data file is edited manually. As a bonus, this fixes a whole pile of compiler warnings previously seen with "-Wunused-result". Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Trap fgets() failure in *_scan()Lukas Fleischer2012-02-183-4/+12
| | | | | | | | Ensure we don't read arbitrary data when fgets() returns a NULL string (meaning that either the EOF is encountered or an error occurred). This also fixes a couple of compiler warnings seen with "-Wunused-result". Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* src/config.c: Add missing configuration variablesLukas Fleischer2012-02-171-15/+42
| | | | | | | Append missing configuration variables to the end of our configuration file instead of keeping them undefined. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* src/config.c: Revamp configuration file parsingLukas Fleischer2012-02-171-130/+81
| | | | | | | | | | | | | | | | | | | | | Reintroduce a map for configuration variable parsing. We use a different approach this time: Each map entry contains * a key, * a callback that can be used to parse that variable, * a callback that can be used to serialize that variable and * a target buffer that the parsed value is written to/read from. Commits 4f4891bdb88410ae04225f3d6acfa31d73a3901a and 6377582841118688aee13aff98c9216403582e45 show that we are pretty undecided on using a map or not. However, now that we use parser and serialization wrappers for every variable, having a central map makes everything much cleaner. The runtimes of config_load() and config_save() are slightly increased (by a constant factor). This will also allow us for implementing proper detection of missing configuration variables in the configuration file. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* src/config.c: Add more parser/serialization wrappersLukas Fleischer2012-02-171-67/+133
| | | | | | | | | | | | Add convenience parser/serialization wrappers for all configuration variables that don't use the default config_parse_*() and config_serialize_*() helpers yet. This is nothing but a dirty hack and should be refactored later (e.g. by separating configuration variable parsing and validation or by adding optional validation functions). It makes it easier to switch to a more generic configuration parser, though. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* src/config.c: Introduce config_parse_str()Lukas Fleischer2012-02-171-13/+14
| | | | | | Be consistent with other parser helpers and with config_serialize_str(). Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* src/config.c: Keep formatting and commentsLukas Fleischer2012-02-171-131/+46
| | | | | | | | | | | | | Switch to using the new config_file_walk() helper in config_save() and update existing configuration variables instead of blindly overwriting the existing configuration file. Note: This breaks configuration setting storage if one or more settings are missing in the configuration file. We need to refactor our parser and serialization routines another time before this can be implemented properly, though. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* src/config.c: Add serialization helperLukas Fleischer2012-02-171-53/+184
| | | | | | | Add config_serialize_conf() which can be used to serialize the value of a configuration setting (counterpart to config_parse_conf()). Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* src/config.c: Add junk callback to config_file_walk()Lukas Fleischer2012-02-161-3/+9
| | | | | | | | | | This can be used if we care about junk, such as empty lines and comments. Currently unused since we skip these when parsing configuration settings. This makes sense if we want to make slight modifications to the configuration file without losing formatting and comments, though. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* src/config.c: Make config file reading more flexibleLukas Fleischer2012-02-161-11/+27
| | | | | | | | | | | | | | This adds one level of abstraction to config_load() by splitting out the actual reading routine and the variable setter into two separate functions. config_file_walk() can be used to read the configuration file, strip comments and pass every key/value pair to a callback. config_load_cb() is the new callback used in config_load(). Rationale: It makes sense to reuse the key/value parser to allow for a much saner config_save() routine that changes single values only instead of rewriting (and overwriting) the whole configuration file every time. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* src/llist.c: Bail out early on negative indexesLukas Fleischer2012-02-161-1/+7
| | | | | | | Make sure we don't return bogus list elements if negative indexes are used in llist_{,find_}nth(). Bail out early and return NULL instead. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* src/calendar.c: Fix range check in calendar_move()Lukas Fleischer2012-01-211-12/+14
| | | | | | | | | | | | | | | We added count prefix support to motion commands in commit 59e006e56d9f893506af56a4ca114fe53b537e49 but obviously forgot to check whether the range checks in calendar_move() still work correctly. Refactor out range checks and replace them by a single check that is performed *after* the new date is computed, but before we assign the new value to the actual selected date. This ensures we won't have to bother about these again when changing/adding functionality in/to calendar_move(), while keeping performance (date_change() is pretty cheap and range violations are corner cases anyway). Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Split note file generation into separate functionLukas Fleischer2012-01-173-12/+23
| | | | | | | We currently use this in one place only but might reuse this a couple of times later (when migrating to libical). Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Break out different import/export formatsLukas Fleischer2012-01-075-1501/+1598
| | | | | | | | | | | | | | | | | | | | | | Extract iCal and pcal import/export routines into separate files. This reduces complexity of the super huge "io.c" source file and makes it easier to follow changes that affect the iCal and pcal routines only (commits affecting both formats are very uncommon). Before: $ wc -l src/io.c 2938 src/io.c After: $ wc -l src/{io,ical,pcal}.c 1445 src/io.c 1263 src/ical.c 317 src/pcal.c 3025 total Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* src/apoint.c: Update in-notify-bar help for new duration syntaxBaptiste Jonglez2012-01-071-2/+2
| | | | | Signed-off-by: Baptiste Jonglez <baptiste@jonglez.org> Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* src/apoint.c: Fix a length bug introduced by new duration formatBaptiste Jonglez2012-01-071-1/+1
| | | | | | | | | | | | | | | | Commit 4ff3bb9d introduced a new format for parsing durations, thus allowing a larger string to be retrieved from user input. However, the string used is still declared with the old length, leading to crashes when compiling with stack-smashing protection features (the default on Archlinux). Inputting a duration string of more than 8 characters (such as "+1d11h11m") would crash calcurse with a *** stack smashing detected *** message. Using a larger string from the start fixes the bug. Signed-off-by: Baptiste Jonglez <baptiste@jonglez.org> Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Merge branch 'maint'Lukas Fleischer2011-12-161-1/+5
|\ | | | | | | | | Conflicts: src/io.c
| * Format "DURATION" field properly on ical exportJérôme Pinot2011-12-161-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | Use days/hours/minutes/seconds instead of seconds in the DURATION field. It fixes interaction with other softwares like phpicalendar. Lukas: Remove use of dur-week. RFC 5545 states that you cannot use this in conjunction with dur-day. Also, fix formatting and use proper constants. Signed-off-by: Jerome Pinot <ngc891@gmail.com> Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | src/config.c: Drop support for legacy color schemesLukas Fleischer2011-12-121-85/+36
| | | | | | | | | | | | | | | | | | We used different naming schemes in versions prior to 1.8. Given that calcurse 1.8 has been released more than 4.5 years ago, remove the legacy code that still handles these. Users upgrading from <1.8 to 3.0.0 might need to convert the appropriate config file variable manually. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | src/utils.c: Mark is_all_digit() parameter constLukas Fleischer2011-12-092-2/+2
| | | | | | | | Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | src/config.c: Remove map for configuration variablesLukas Fleischer2011-12-091-169/+114
| | | | | | | | | | | | | | | | | | | | This patch kind of reverts what we did in commit 6377582841118688aee13aff98c9216403582e45. We were a tad off-base there since using a map doesn't improve maintainability, really. Using strcmp() at a central location seems perfectly fine and doesn't have the overhead of the map scanning algorithm. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | Extract config file handlers into a separate fileLukas Fleischer2011-12-098-550/+594
| | | | | | | | | | | | | | | | We used custom_load_conf() to load the configuration file and io_save_conf() to save configuration. Move these functions, including all helpers, to a central location. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | src/day.c: Nuke unneeded variableLukas Fleischer2011-12-091-4/+1
| | | | | | | | Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | src/todo.c: Remove several unneeded variablesLukas Fleischer2011-12-091-19/+14
| | | | | | | | Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | src/apoint.c: Remove several unneeded variablesLukas Fleischer2011-12-051-36/+30
| | | | | | | | Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | src/utils.c: Support escape sequences in format stringsLukas Fleischer2011-11-221-0/+55
| | | | | | | | | | | | | | We support all simple escape sequences listed in the ANSI C standard, plus "\0" to allow for printing null characters. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | Merge branch 'maint'Lukas Fleischer2011-11-151-2/+5
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| * src/io.c: Avoid use of memcpy()Lukas Fleischer2011-11-111-2/+4
| | | | | | | | | | | | | | | | Use strncpy() and a proper limit, which ensures we never read more characters than the buffer can hold. Also, ensure we always null-terminate strings here. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
| * src/io.c: Null-terminate the ical_readline() bufferLukas Fleischer2011-11-111-0/+1
| | | | | | | | | | | | | | Ensure we always return with a null-terminated buffer, even if we read more than BUFSIZ characters. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | src/utils.c: Support printing '%' in format stringsLukas Fleischer2011-11-141-0/+9
| | | | | | | | | | | | This allows using "%%" to print the '%' character. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | src/args.c: Remove obsolete "-N" flagLukas Fleischer2011-11-141-4/+0
| | | | | | | | | | | | This is superseded by custom format strings. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | src/args.c: Allow for specifying custom format stringsLukas Fleischer2011-11-141-23/+66
| | | | | | | | | | | | | | | | | | | | | | | | | | Following long command line options can be used to override the default format strings: * --format-apt * --format-recur-apt * --format-event * --format-recur-event * --format-todo Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | print_*(): Add format specifier to print notesLukas Fleischer2011-11-142-70/+70
| | | | | | | | | | | | | | | | | | | | | | | | * Move print_notefile() from "src/args.c" to "src/utils.c". * Add a "%N" format specifier to print_*(). This invokes print_notefile() and prints the content of an item's note file. * src/args.c: Use the new format specifier instead of print_notefile() everywhere. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | Use a dynamic method to print todo items to stdoutLukas Fleischer2011-11-143-13/+42
| | | | | | | | | | | | | | | | | | | | | | | | This goes in line with the other commits adding print_*() support. Following format specifiers are allowed: * p: Print the priority of the item * m: Print the description of the item * n: Print the name of the note file belonging to the item Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | src/apoint.c: Remove apoint_recur_s2apoint_s()Lukas Fleischer2011-11-142-17/+0
| | | | | | | | | | | | | | This one is hackish, obsolete and no longer used by any other function. Drop it! Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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