diff options
Diffstat (limited to 'common/sysutils.c')
-rw-r--r-- | common/sysutils.c | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/common/sysutils.c b/common/sysutils.c index 564b075e1..5e550b43a 100644 --- a/common/sysutils.c +++ b/common/sysutils.c @@ -278,127 +278,6 @@ gnupg_sleep (unsigned int seconds) } - -/* Handle translation. On W32, we provide handle values on the - command line directly and using special file names such as - "-&HANDLE". However, in GPGME we can not directly inherit the - handles as this may interfere with other components in a - multithreaded application. Thus, we inject the handles after - creating the GPG process. The problem is that the handle numbers - change at injection, but it is too late to change the command line. - Hence this hack, which allows us to translate the handle values - in the command line to their new values after injection. - - Handles that must be translated are those occuring in special file - names (see iobuf.c::check_special_filename) as well as those given - directly to options (see translate_sys2libc_fd_int). */ - -/* For W32, we may have to translate handle values given on the - command line. */ -#define FD_TRANSLATE_MAX 8 -static struct -{ - int from; - int to; -} fd_translate[FD_TRANSLATE_MAX]; - -/* Number of entries used in fd_translate. */ -static int fd_translate_len; - - -/* Initialize the fd translation table. This reads one line from - stdin which is expected to be in the format "FROM TO [...]" where - each "FROM TO" pair are two handle numbers. Handle number FROM on - the command line is translated to handle number TO. - - Note that this function may be called while still being setuid. */ -void -translate_table_init (void) -{ - /* Hold roughly 8 pairs of 64 bit numbers in hex notation: - "0xFEDCBA9876543210 0xFEDCBA9876543210". 8*19*2 - 1 = 303. This - plans ahead for a time where a HANDLE is 64 bit. */ -#define TRANS_MAX 350 - char line[TRANS_MAX + 1]; - char *linep; - int idx; - int res; - int newl = 0; - - /* We always read one line from stdin. */ - for (idx = 0; idx < TRANS_MAX; idx++) - { - do - res = read (0, &line[idx], 1); - while (res == -1 && errno == EINTR); - if (res != 1) - break; - if (line[idx] == '\n') - { - newl = 1; - break; - } - } - if (!newl) - { - char buf[1]; - do - { - do - res = read (0, buf, 1); - while (res == -1 && errno == EINTR); - } - while (res == 1 && *buf != '\n'); - } - - line[idx] = '\0'; - linep = line; - - /* Now start to read mapping pairs. */ - for (idx = 0; idx < FD_TRANSLATE_MAX; idx++) - { - unsigned long from; - unsigned long to; - char *tail; - - while (spacep (linep)) - linep++; - if (*linep == '\0') - break; - from = strtoul (linep, &tail, 0); - if (tail == NULL || ! (*tail == '\0' || spacep (tail))) - break; - linep = tail; - - while (spacep (linep)) - linep++; - if (*linep == '\0') - break; - to = strtoul (linep, &tail, 0); - if (tail == NULL || ! (*tail == '\0' || spacep (tail))) - break; - linep = tail; - - fd_translate[idx].from = from; - fd_translate[idx].to = to; - fd_translate_len++; - } -} - - -/* Translate a handle number. */ -int -translate_table_lookup (int fd) -{ - int idx; - - for (idx = 0; idx < fd_translate_len; idx++) - if (fd_translate[idx].from == fd) - return fd_translate[idx].to; - return fd; -} - - /* This function is a NOP for POSIX systems but required under Windows as the file handles as returned by OS calls (like CreateFile) are different from the libc file descriptors (like open). This function @@ -424,7 +303,6 @@ translate_sys2libc_fd (gnupg_fd_t fd, int for_write) #endif } - /* This is the same as translate_sys2libc_fd but takes an integer which is assumed to be such an system handle. */ int @@ -434,14 +312,8 @@ translate_sys2libc_fd_int (int fd, int for_write) if (fd <= 2) return fd; /* Do not do this for error, stdin, stdout, stderr. */ - /* Note: If this function is ever used in a different context than - option parsing in the main function, a variant that does not do - translation probable needs to be used. */ - fd = translate_table_lookup (fd); - return translate_sys2libc_fd ((void*)fd, for_write); #else - fd = translate_table_lookup (fd); return fd; #endif } |