/* $Id$ */ #include "bbs.h" #ifdef __linux__ #include #include /* size_t * strlcat(char *dst, const char *src, size_t size); */ /* * Copyright (c) 1998 Todd C. Miller * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * Appends src to string dst of size siz (unlike strncat, siz is the * full size of dst, not space left). At most siz-1 characters * will be copied. Always NUL terminates (unless siz <= strlen(dst)). * Returns strlen(src) + MIN(siz, strlen(initial dst)). * If retval >= siz, truncation occurred. */ size_t strlcat(dst, src, siz) char *dst; const char *src; size_t siz; { char *d = dst; const char *s = src; size_t n = siz; size_t dlen; /* Find the end of dst and adjust bytes left but don't go past end */ while (n-- != 0 && *d != '\0') d++; dlen = d - dst; n = siz - dlen; if (n == 0) return(dlen + strlen(s)); while (*s != '\0') { if (n != 1) { *d++ = *s; n--; } s++; } *d = '\0'; return(dlen + (s - src)); /* count does not include NUL */ } /* ------------------------------------------------------------------------ */ /* size_t * strlcpy(char *dst, const char *src, size_t size); */ /* * Copyright (c) 1998 Todd C. Miller * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * Copy src to string dst of size siz. At most siz-1 characters * will be copied. Always NUL terminates (unless siz == 0). * Returns strlen(src); if retval >= siz, truncation occurred. */ size_t strlcpy(dst, src, siz) char *dst; const char *src; size_t siz; { char *d = dst; const char *s = src; size_t n = siz; /* Copy as many bytes as will fit */ if (n != 0 && --n != 0) { do { if ((*d++ = *s++) == 0) break; } while (--n != 0); } /* Not enough room in dst, add NUL and traverse rest of src */ if (n == 0) { if (siz != 0) *d = '\0'; /* NUL-terminate dst */ while (*s++) ; } return(s - src - 1); /* count does not include NUL */ } #endif #if __FreeBSD__ #include int cpuload(char *str) { double l[3] = {-1, -1, -1}; if (getloadavg(l, 3) != 3) l[0] = -1; if (str) { if (l[0] != -1) sprintf(str, " %.2f %.2f %.2f", l[0], l[1], l[2]); else strcpy(str, " (unknown) "); } return (int)l[0]; } double swapused(long *total, long *used) { double percent = -1; kvm_t *kd; struct kvm_swap swapinfo; int pagesize; kd = kvm_open(NULL, NULL, NULL, O_RDONLY, NULL); if (kd) { if (kvm_getswapinfo(kd, &swapinfo, 1, 0) == 0) { pagesize = getpagesize(); *total = swapinfo.ksw_total * pagesize; *used = swapinfo.ksw_used * pagesize; if (*total != 0) percent = (double)*used / (double)*total; } kvm_close(kd); } return percent; } #else int cpuload(char *str) { double l[3] = {-1, -1, -1}; FILE *fp; if ((fp = fopen("/proc/loadavg", "r"))) { if (fscanf(fp, "%lf %lf %lf", &l[0], &l[1], &l[2]) != 3) l[0] = -1; fclose(fp); } if (str) { if (l[0] != -1) snprintf(str, sizeof(str), " %.2f %.2f %.2f", l[0], l[1], l[2]); else strcpy(str, " (unknown) "); } return (int)l[0]; } double swapused(long *total, long *used) { double percent = -1; char buf[101]; FILE *fp; if ((fp = fopen("/proc/meminfo", "r"))) { while (fgets(buf, 100, fp) && buf[0] != 'S'); if (sscanf(buf + 6, "%ld %ld", total, used) == 2) if (*total != 0) percent = (double)*used / (double)*total; fclose(fp); } return percent; } #endif