diff options
Diffstat (limited to '')
| -rw-r--r-- | get-contact-birthday.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/get-contact-birthday.c b/get-contact-birthday.c new file mode 100644 index 0000000..29be768 --- /dev/null +++ b/get-contact-birthday.c @@ -0,0 +1,160 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" + +USAGE("[-n] contact-id ..."); + + +static int +get_age(struct libcontacts_birthday *bday, const struct tm *now) +{ + int age = now->tm_year + 1900 - (int)bday->year; + if (now->tm_mon + 1 < bday->month) + age -= 1; + else if (now->tm_mon + 1 == bday->month) + age -= (now->tm_mday < bday->day); + return age; +} + +static void +print_birthdate(struct libcontacts_birthday *bday, const struct tm *now) +{ + int age; + if (bday->year) + printf("%04u-", bday->year); + else + printf("??""??""-"); + if (bday->month) { + printf("(%02u)%.3s-", (unsigned)bday->month, + &"JanFebMarAprMayJunJulAugSepOctNovDec"[3 * ((bday->month - 1) % 12)]); + } else { + printf("(??"")??""?-"); + } + if (bday->day) + printf("%02u", (unsigned)bday->day); + else + printf("??"); + if ((bday->month - 1) % 12 == 1 && bday->day == 29) { + bday->day -= bday->before_on_common; + printf(" (%s on common years)", bday->before_on_common ? "(02)Feb-28" : "(03)Mar-01"); + } + if (bday->year && bday->month && bday->day) { + age = get_age(bday, now); + printf(", %i %s old today", age, age == 1 ? "year" : "years"); + } + printf("\n"); +} + +static void +print_birthday(struct libcontacts_birthday *bday, const struct tm *now) +{ + static const int days_in_month[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; + int next_year = 0, leap_year = 0, year, age, days = 0, y, m, d; + struct tm when; + if (now->tm_mon + 1 > bday->month) + next_year = 1; + else if (now->tm_mon + 1 == bday->month) + next_year = (now->tm_mday > bday->day); + if (bday->year) { + printf("%04i-", now->tm_year + next_year + 1900); + } else { + printf("??""??""-"); + } + year = now->tm_year + next_year + 1900; + if (year % 4 == 0 && (year % 100 || year % 400 == 0)) + leap_year = 1; + if (((bday->month - 1) % 12 == 1 && bday->day == 29) && leap_year) { + if (bday->before_on_common) { + bday->day -= 1; + } else { + bday->day = 1; + bday->month += 1; + } + } + printf("(%02u)%.3s-%02u (", (unsigned)bday->month % 12, + &"JanFebMarAprMayJunJulAugSepOctNovDec"[3 * ((bday->month - 1) % 12)], (unsigned)bday->day); + when.tm_year = now->tm_year + next_year; + when.tm_mon = (bday->month - 1) % 12; + when.tm_mday = bday->day; + if (bday->year) { + age = get_age(bday, &when); + printf("%i %s ", age, age == 1 ? "year" : "years"); + } + if (when.tm_mon == now->tm_mon && when.tm_mday == now->tm_mday) { + printf("today)\n"); + } else { + y = now->tm_year; + m = now->tm_mon; + d = now->tm_mday; + while (m != when.tm_mon || d > when.tm_mday) { + days += days_in_month[m] - (d - 1); + days += (m == 1 && y % 4 == 0 && (y % 100 || y % 400 == 0)); + d = 1; + if (++m == 12) { + y += 1; + m = 0; + } + } + days += when.tm_mday - d; + printf("in %i %s)\n", days, days == 1 ? "day" : "days"); + } + +} + +int +main(int argc, char *argv[]) +{ + int next = 0; + struct passwd *user; + struct libcontacts_contact contact; + struct tm *now; + time_t tim; + int ret = 0; + size_t i; + + ARGBEGIN { + case 'n': + next = 1; + break; + default: + usage(); + } ARGEND; + + if (!argc) + usage(); + + for (i = 0; argv[i]; i++) + if (!*argv[i] || strchr(argv[i], '/')) + usage(); + + errno = 0; + user = getpwuid(getuid()); + if (!user) + eprintf("getpwuid: %s\n", errno ? strerror(errno) : "user does not exist"); + + tim = time(NULL); + now = localtime(&tim); + if (!now) + eprintf("localtime:"); + + for (; *argv; argv++) { + if (libcontacts_load_contact(*argv, &contact, user)) { + weprintf("libcontacts_load_contact %s: %s\n", *argv, errno ? strerror(errno) : "contact file is malformatted"); + ret = 1; + } else { + if (contact.birthday) { + if (next) { + print_birthday(contact.birthday, now); + } else if (contact.birthday->month && contact.birthday->year) { + if (argc > 1) + printf("%s: ", *argv); + print_birthdate(contact.birthday, now); + } + } + libcontacts_contact_destroy(&contact); + } + } + + if (fflush(stdout) || ferror(stdout) || fclose(stdout)) + eprintf("printf:"); + return ret; +} |