diff options
Diffstat (limited to 'plugins/imklog')
| -rw-r--r-- | plugins/imklog/bsd.c | 37 |
1 files changed, 29 insertions, 8 deletions
diff --git a/plugins/imklog/bsd.c b/plugins/imklog/bsd.c index 39b644c0..0a581081 100644 --- a/plugins/imklog/bsd.c +++ b/plugins/imklog/bsd.c @@ -110,15 +110,32 @@ klogWillRun(void) static void readklog(void) { - char *p, *q, line[MAXLINE + 1]; + char *p, *q; int len, i; + int iMaxLine; + uchar bufRcv[4096+1]; + uchar *pRcv = NULL; /* receive buffer */ + + iMaxLine = glbl.GetMaxLine(); + + /* we optimize performance: if iMaxLine is below 4K (which it is in almost all + * cases, we use a fixed buffer on the stack. Only if it is higher, heap memory + * is used. We could use alloca() to achive a similar aspect, but there are so + * many issues with alloca() that I do not want to take that route. + * rgerhards, 2008-09-02 + */ + if((size_t) iMaxLine < sizeof(bufRcv) - 1) { + pRcv = bufRcv; + } else { + CHKmalloc(pRcv = (uchar*) malloc(sizeof(uchar) * (iMaxLine + 1))); + } len = 0; for (;;) { - dbgprintf("----------imklog waiting for kernel log line\n"); - i = read(fklog, line + len, MAXLINE - 1 - len); + dbgprintf("----------imklog(BSD) waiting for kernel log line\n"); + i = read(fklog, pRcv + len, iMaxLine - len); if (i > 0) { - line[i + len] = '\0'; + pRcv[i + len] = '\0'; } else { if (i < 0 && errno != EINTR && errno != EAGAIN) { imklogLogIntMsg(LOG_ERR, @@ -129,20 +146,24 @@ readklog(void) break; } - for (p = line; (q = strchr(p, '\n')) != NULL; p = q + 1) { + for (p = pRcv; (q = strchr(p, '\n')) != NULL; p = q + 1) { *q = '\0'; Syslog(LOG_INFO, (uchar*) p); } len = strlen(p); - if (len >= MAXLINE - 1) { + if (len >= iMaxLine - 1) { Syslog(LOG_INFO, (uchar*)p); len = 0; } if (len > 0) - memmove(line, p, len + 1); + memmove(pRcv, p, len + 1); } if (len > 0) - Syslog(LOG_INFO, (uchar*)line); + Syslog(LOG_INFO, pRcv); + +finalize_it: + if(pRcv != NULL && (size_t) iMaxLine >= sizeof(bufRcv) - 1) + free(pRcv); } |