📄 cgifreeip.c
字号:
#include "bbs.h"#include "displayip.h"#include "stdlib.h"char *getsenv(char *s){ char *t = getenv(s); if (t) return t; return "";}int__to16(char c){ if (c >= 'a' && c <= 'f') return c - 'a' + 10; if (c >= 'A' && c <= 'F') return c - 'A' + 10; if (c >= '0' && c <= '9') return c - '0'; return 0;}void__unhcode(char *s){ int m, n; for (m = 0, n = 0; s[m]; m++, n++) { if (s[m] == '+') { s[n] = ' '; continue; } if (s[m] == '%') { s[n] = __to16(s[m + 1]) * 16 + __to16(s[m + 2]); m += 2; continue; } s[n] = s[m]; } s[n] = 0;}char *nohtml(char *s){ static char buf[5000]; int i = 0; while (*s && i < sizeof (buf) - 10) { if (*s == '<') { strcpy(buf + i, "<"); i += 4; } else if (*s == '>') { strcpy(buf + i, ">"); i += 4; } else { buf[i] = *s; i++; } s++; } buf[i] = 0; return buf;}intgetformarg(char *buf, char *type, char *ip, int len){ char *t2, *t3; type[0] = 0; ip[0] = 0; t2 = strtok(buf, "&"); while (t2) { t3 = strchr(t2, '='); if (t3 != 0) { t3[0] = 0; t3++; __unhcode(t3); if (!strcmp(t2, "type")) { strsncpy(type, t3, len); } if (!strcmp(t2, "ip")) { strsncpy(ip, t3, len); } } t2 = strtok(NULL, "&"); } if (!ip[0]) return -1; while (ip[0] == ' ') memmove(ip, ip + 1, strlen(ip)); if ((t2 = strchr(ip, ' '))) *t2 = 0; return 0;}voidprintheader(){ static int r = 0; if (r) return; printf("Content-type: text/html\n\n<HTML><HEAD>" "<META HTTP-EQUIV='content-type' CONTENT='text/html; charset=GB2312'>" "</HEAD><BODY bgcolor=#f0f4f0><br>%s IP地址查询<hr>", MY_BBS_NAME); r = 1;}static voidget_load(load)double load[];{ FILE *fp; fp = fopen("/proc/loadavg", "r"); if (!fp) load[0] = load[1] = load[2] = 0; else { float av[3]; fscanf(fp, "%g %g %g", av, av + 1, av + 2); fclose(fp); load[0] = av[0]; load[1] = av[1]; load[2] = av[2]; }}intmain(){ int type; char ip[80] = "", typestr[80]; char buf[1024]; double load[3]; printheader(); get_load(load); if (load[0] > 2.5) { printf("系统负载过高，请稍后再试\n"); return 0; } strsncpy(buf, getsenv("QUERY_STRING"), sizeof (buf)); type = 0; if (getformarg(buf, typestr, ip, 80) == 0) { type = atoi(typestr); ip[50] = 0; } if (type) { printf("<pre>\n"); display_ip(ip); printf("</pre>\n"); } printf("<form action='cgifreeip'>\n"); printf("<input type=hidden name=type value=1>"); printf ("域名或IP地址: <input type=text name=ip maxlength=50 value='%s'>\n", nohtml(ip)); printf("<input type=submit>"); printf("</form>\n"); printf("</boyd></html>");}⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -