X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fjournal%2Fcoredump.c;h=bada8487c486063318100bb13bf7ccd5f966ad10;hb=dd7c30c36a8235652e7c1ad8e6082f32ff6de2f9;hp=fcd0d1e625e782cb543e1b1b7d8599de4d024b6e;hpb=b7def684941808600c344f0be7a2b9fcdda97e0f;p=elogind.git diff --git a/src/journal/coredump.c b/src/journal/coredump.c index fcd0d1e62..bada8487c 100644 --- a/src/journal/coredump.c +++ b/src/journal/coredump.c @@ -32,11 +32,12 @@ #include "log.h" #include "util.h" +#include "macro.h" #include "mkdir.h" #include "special.h" #include "cgroup-util.h" -#define COREDUMP_MAX (24*1024*1024) +#define COREDUMP_MAX (768*1024*1024) enum { ARG_PID = 1, @@ -49,8 +50,7 @@ enum { }; static int divert_coredump(void) { - FILE *f; - int r; + _cleanup_fclose_ FILE *f = NULL; log_info("Detected coredump of the journal daemon itself, diverting coredump to /var/lib/systemd/coredump/."); @@ -70,19 +70,16 @@ static int divert_coredump(void) { if (l <= 0) { if (ferror(f)) { log_error("Failed to read coredump: %m"); - r = -errno; - goto finish; + return -errno; } - r = 0; break; } q = fwrite(buffer, 1, l, f); if (q != l) { log_error("Failed to write coredump: %m"); - r = -errno; - goto finish; + return -errno; } } @@ -90,25 +87,23 @@ static int divert_coredump(void) { if (ferror(f)) { log_error("Failed to write coredump: %m"); - r = -errno; + return -errno; } -finish: - fclose(f); - return r; + return 0; } int main(int argc, char* argv[]) { int r, j = 0; - char *p = NULL; + _cleanup_free_ char *p = NULL; ssize_t n; pid_t pid; uid_t uid; gid_t gid; struct iovec iovec[14]; - char *core_pid = NULL, *core_uid = NULL, *core_gid = NULL, *core_signal = NULL, + _cleanup_free_ char *core_pid = NULL, *core_uid = NULL, *core_gid = NULL, *core_signal = NULL, *core_timestamp = NULL, *core_comm = NULL, *core_exe = NULL, *core_unit = NULL, - *core_session = NULL, *core_message = NULL, *core_cmdline = NULL, *t; + *core_session = NULL, *core_message = NULL, *core_cmdline = NULL, *t = NULL; prctl(PR_SET_DUMPABLE, 0); @@ -143,11 +138,11 @@ int main(int argc, char* argv[]) { } core_unit = strappend("COREDUMP_UNIT=", t); - free(t); + } else if (cg_pid_get_user_unit(pid, &t) >= 0) + core_unit = strappend("COREDUMP_USER_UNIT=", t); - if (core_unit) - IOVEC_SET_STRING(iovec[j++], core_unit); - } + if (core_unit) + IOVEC_SET_STRING(iovec[j++], core_unit); /* OK, now we know it's not the journal, hence make use of * it */ @@ -205,7 +200,7 @@ int main(int argc, char* argv[]) { IOVEC_SET_STRING(iovec[j++], core_exe); } - if (get_process_cmdline(pid, LINE_MAX, false, &t) >= 0) { + if (get_process_cmdline(pid, 0, false, &t) >= 0) { core_cmdline = strappend("COREDUMP_CMDLINE=", t); free(t); @@ -239,8 +234,7 @@ int main(int argc, char* argv[]) { p = malloc(9 + COREDUMP_MAX); if (!p) { - log_error("Out of memory"); - r = -ENOMEM; + r = log_oom(); goto finish; } @@ -262,18 +256,5 @@ int main(int argc, char* argv[]) { log_error("Failed to send coredump: %s", strerror(-r)); finish: - free(p); - free(core_pid); - free(core_uid); - free(core_gid); - free(core_signal); - free(core_timestamp); - free(core_comm); - free(core_exe); - free(core_cmdline); - free(core_unit); - free(core_session); - free(core_message); - return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; }