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commit ca5b01f538c122dc1f0e989f5703c75b8cf8ca3a Author: Kalle Olavi Niemitalo <[email protected]> Date: Wed Aug 24 00:41:30 2016 +0300 rpctrace: Print beyond '\0' in MACH_MSG_TYPE_CHAR. This will now display the 'argv: data_t' argument of file_exec as e.g. "who\0am\0i\0" rather than just "who". In contrast, the 'file_name: string_t' argument of dir_lookup will still be truncated at the first null character. The previous implementation might crash if an out-of-line char array exactly fills a page and does not contain any null characters. * utils/rpctrace.c (print_data): On MACH_MSG_TYPE_STRING and MACH_MSG_TYPE_CHAR, check for end of buffer before checking for a null character. On MACH_MSG_TYPE_CHAR only, continue printing past null characters. --- utils/rpctrace.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/utils/rpctrace.c b/utils/rpctrace.c index 276377c..25d9bc6 100644 --- a/utils/rpctrace.c +++ b/utils/rpctrace.c @@ -1524,7 +1524,8 @@ print_data (mach_msg_type_name_t type, the first character that has not yet been printed. */ const char *p, *q; p = q = (const char *) data; - while (q && *q && q - (const char *) data < (int) (nelt * eltsize)) + while (q && q - (const char *) data < (int) (nelt * eltsize) + && (*q || type == MACH_MSG_TYPE_CHAR)) { if (isgraph (*q) || *q == ' ') { -- Alioth's /usr/local/bin/git-commit-notice on /srv/git.debian.org/git/pkg-hurd/hurd.git
