| From dd53dc9b9542cbd2c39a39096941dfed70d06506 Mon Sep 17 00:00:00 2001 |
| From: Chen Qi <Qi.Chen@windriver.com> |
| Date: Tue, 10 Jul 2018 15:40:17 +0800 |
| Subject: [PATCH 20/20] distinguish XSI-compliant strerror_r from GNU-specifi |
| strerror_r |
| |
| XSI-compliant strerror_r and GNU-specifi strerror_r are different. |
| |
| int strerror_r(int errnum, char *buf, size_t buflen); |
| /* XSI-compliant */ |
| |
| char *strerror_r(int errnum, char *buf, size_t buflen); |
| /* GNU-specific */ |
| |
| We need to distinguish between them. Otherwise, we'll get an int value |
| assigned to (char *) variable, resulting in segment fault. |
| |
| Upstream-Status: Inappropriate [musl specific] |
| |
| Signed-off-by: Chen Qi <Qi.Chen@windriver.com> |
| --- |
| src/journal/journal-send.c | 5 +++++ |
| src/libsystemd/sd-bus/bus-error.c | 5 +++++ |
| 2 files changed, 10 insertions(+) |
| |
| diff --git a/src/journal/journal-send.c b/src/journal/journal-send.c |
| index 65bcbcd2e..aef80dd8f 100644 |
| --- a/src/journal/journal-send.c |
| +++ b/src/journal/journal-send.c |
| @@ -337,7 +337,12 @@ static int fill_iovec_perror_and_send(const char *message, int skip, struct iove |
| char* j; |
| |
| errno = 0; |
| +#ifndef __GLIBC__ |
| + strerror_r(_saved_errno_, buffer + 8 + k, n - 8 - k); |
| + j = buffer + 8 + k; |
| +#else |
| j = strerror_r(_saved_errno_, buffer + 8 + k, n - 8 - k); |
| +#endif |
| if (errno == 0) { |
| char error[STRLEN("ERRNO=") + DECIMAL_STR_MAX(int) + 1]; |
| |
| diff --git a/src/libsystemd/sd-bus/bus-error.c b/src/libsystemd/sd-bus/bus-error.c |
| index ec359ac13..d2aa86cea 100644 |
| --- a/src/libsystemd/sd-bus/bus-error.c |
| +++ b/src/libsystemd/sd-bus/bus-error.c |
| @@ -362,7 +362,12 @@ static void bus_error_strerror(sd_bus_error *e, int error) { |
| return; |
| |
| errno = 0; |
| +#ifndef __GLIBC__ |
| + strerror_r(error, m, k); |
| + x = m; |
| +#else |
| x = strerror_r(error, m, k); |
| +#endif |
| if (errno == ERANGE || strlen(x) >= k - 1) { |
| free(m); |
| k *= 2; |
| -- |
| 2.11.0 |
| |