diff options
Diffstat (limited to 'newlib/libc/time/strftime.c')
| -rw-r--r-- | newlib/libc/time/strftime.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/newlib/libc/time/strftime.c b/newlib/libc/time/strftime.c index 1b44e1db9..57fe74eae 100644 --- a/newlib/libc/time/strftime.c +++ b/newlib/libc/time/strftime.c @@ -115,9 +115,9 @@ o %Y The full year, formatted with four digits to include the century. o %Z -Defined by ANSI C as eliciting the time zone if available; it is not -available in this implementation (which accepts `<<%Z>>' but generates -no output for it). +The time zone name. If tm_isdst is -1, no output is generated. +Otherwise, the time zone name based on the TZ environment variable +is used. o %% A single character, `<<%>>'. @@ -142,6 +142,7 @@ ANSI C requires <<strftime>>, but does not specify the contents of #include <stddef.h> #include <stdio.h> #include <time.h> +#include "local.h" static _CONST int dname_len[7] = {6, 6, 7, 9, 8, 6, 8}; @@ -426,6 +427,23 @@ _DEFUN (strftime, (s, maxsize, format, tim_p), return 0; break; case 'Z': + if (tim_p->tm_isdst >= 0) + { + int size; + TZ_LOCK; + size = strlen(_tzname[tim_p->tm_isdst]); + for (i = 0; i < size; i++) + { + if (count < maxsize - 1) + s[count++] = _tzname[tim_p->tm_isdst][i]; + else + { + TZ_UNLOCK; + return 0; + } + } + TZ_UNLOCK; + } break; case '%': if (count < maxsize - 1) |