支持多个进程的判断

Makefile

@@ -5,7 +5,7 @@ CFLAGS += -g -O2 -Wall -I../libconf -L../libconf
 LIBS = -lconf -static
 OBJ := daemon
 
-all: popen.o main.o
+all: conf.o popen.o main.o
 	$(CC) $(CFLAGS) -o $(OBJ) $^ $(LIBS)
 	$(STRIP) $(OBJ)
 	-chmod a+x $(OBJ)

README.md

@@ -1,24 +1,34 @@
-### Daemon
+# Daemon
-    根据程序名称和时间为判断条件的进程守护程序.  
+    Process daemon
-    配置文件默认 daemon.conf  
+    
-    global {
+# build
-        PROCESS_NAME = "frpc";      //进程名称条件变量
+    git clone https://git.aixiao.me:443/aixiao/libconf.git
-        COMMAND = "ls -al";         //进程名称条件变量不成立执行的命令
+    git clone https://git.aixiao.me:443/aixiao/daemon.git
-        TIME = "10";                //时间条件变量, 单位秒
-        LOGFILE = "log.txt";        //日志记录
-    }
-
-### Build
-    Linux编译:  
-    git clone https://github.com/niuyuling/daemon.git
-    git clone https://github.com/niuyuling/libconf.git
     cd libconf
     make clean; make
     cd ../daemon
     make clean; make
 
-### Help
+# HELP
-    #启动
+    root@NIUYULING:/mnt/c/Users/niuyuling/Desktop/conf# ./daemon -?
-    ./daemon
+    Process daemon
-    #关闭
+    Author: AIXIAO@AIXIAO.ME
-    killall daemon
+    Usage: [-?h] [-c filename]
+
+    Options:
+    -c          : set configuration file, (default: daemon.conf)
+    -? -h       : help information
+
+    root@NIUYULING:/mnt/c/Users/niuyuling/Desktop/conf#
+    
+    
+    配置文件示列:
+    global {
+        PROCESS="ls->ls -al";       // 要执行的命令和进程名, 依'->'为分界, '->'之前的字符为进程名字, '->'之后的字符串为要执行的命令.(PROCESS配置理论可以有无数个, 通过链表存储)
+        PROCESS="id->id";           // 同上
+        TIME = "10";                // 循环时间, 单位秒. 大于等于1
+        LOGFILE = "log_daemon.txt"; // 日志文件
+    }
+    
+   
+    

conf.c

@@ -0,0 +1,163 @@
+#include "conf.h"
+
+/* 字符串预处理，设置转义字符 */
+static void string_pretreatment(char *str, int *len)
+{
+    char *lf, *p, *ori_strs[] = { "\\r", "\\n", "\\b", "\\v", "\\f", "\\t", "\\a", "\\b", "\\0" }, to_chrs[] = { '\r', '\n', '\b', '\v', '\f', '\t', '\a', '\b', '\0' };
+    int i;
+
+    while ((lf = strchr(str, '\n')) != NULL) {
+        for (p = lf + 1; *p == ' ' || *p == '\t' || *p == '\n' || *p == '\r'; p++)
+            *len -= 1;
+        strcpy(lf, p);
+        *len -= 1;
+    }
+    for (i = 0; i < sizeof(to_chrs); i++) {
+        for (p = strstr(str, ori_strs[i]); p; p = strstr(p, ori_strs[i])) {
+            //支持\\r
+            *(p - 1) == '\\' ? (*p--) : (*p = to_chrs[i]);
+            memmove(p + 1, p + 2, strlen(p + 2));
+            (*len)--;
+        }
+    }
+}
+
+/* 在content中，设置变量(var)的首地址，值(val)的位置首地址和末地址，返回下一行指针 */
+static char *set_var_val_lineEnd(char *content, char **var, char **val_begin, char **val_end)
+{
+    char *p, *pn, *lineEnd;
+    ;
+    int val_len;
+
+    while (1) {
+        if (content == NULL)
+            return NULL;
+
+        for (; *content == ' ' || *content == '\t' || *content == '\r' || *content == '\n'; content++) ;
+        if (*content == '\0')
+            return NULL;
+        *var = content;
+        pn = strchr(content, '\n');
+        p = strchr(content, '=');
+        if (p == NULL) {
+            if (pn) {
+                content = pn + 1;
+                continue;
+            } else
+                return NULL;
+        }
+        content = p;
+        //将变量以\0结束
+        for (p--; *p == ' ' || *p == '\t'; p--) ;
+        *(p + 1) = '\0';
+        //值的首地址
+        for (content++; *content == ' ' || *content == '\t'; content++) ;
+        if (*content == '\0')
+            return NULL;
+        //双引号引起来的值支持换行
+        if (*content == '"') {
+            *val_begin = content + 1;
+            *val_end = strstr(*val_begin, "\";");
+            if (*val_end != NULL)
+                break;
+        } else
+            *val_begin = content;
+        *val_end = strchr(content, ';');
+        if (pn && *val_end > pn) {
+            content = pn + 1;
+            continue;
+        }
+        break;
+    }
+
+    if (*val_end) {
+        **val_end = '\0';
+        val_len = *val_end - *val_begin;
+        lineEnd = *val_end;
+    } else {
+        val_len = strlen(*val_begin);
+        *val_end = lineEnd = *val_begin + val_len;
+    }
+    string_pretreatment(*val_begin, &val_len);
+    *val_end = *val_begin + val_len;
+    //printf("var[%s]\nbegin[%s]\n\n", *var, *val_begin);
+    return lineEnd;
+}
+
+/* 在buff中读取模块(global http https httpdns httpudp)内容 */
+static char *read_module(char *buff, const char *module_name)
+{
+    int len;
+    char *p, *p0;
+
+    len = strlen(module_name);
+    p = buff;
+    while (1) {
+        while (*p == ' ' || *p == '\t' || *p == '\r' || *p == '\n')
+            p++;
+        if (strncasecmp(p, module_name, len) == 0) {
+            p += len;
+            while (*p == ' ' || *p == '\t' || *p == '\r' || *p == '\n')
+                p++;
+            if (*p == '{')
+                break;
+        }
+        if ((p = strchr(p, '\n')) == NULL)
+            return NULL;
+    }
+    if ((p0 = strchr(++p, '}')) == NULL)
+        return NULL;
+    
+    return strndup(p, p0 - p);
+}
+
+static void parse_global_module(char *content)
+{
+    char *var, *val_begin, *val_end, *lineEnd;
+    conf *conf_node = NULL;
+    
+    while ((lineEnd = set_var_val_lineEnd(content, &var, &val_begin, &val_end)) != NULL) {
+
+        if (strcasecmp(var, "PROCESS") == 0) {
+            conf_node = (conf *)malloc(sizeof(*conf_node));
+            conf_node->PROCESS = strdup(val_begin);
+            conf_node->next = NULL;
+            if (conf_head == NULL) {
+                conf_head = conf_node;
+            } else {
+                conf_node->next = conf_head;
+                conf_head = conf_node;
+                
+            }
+        }
+        
+        content = strchr(lineEnd + 1, '\n');
+    }
+}
+
+void read_conf_link(char *path)
+{
+    char *buff, *global_content;
+    FILE *file;
+    long file_size;
+
+    /* 读取配置文件到缓冲区 */
+    file = fopen(path, "r");
+    if (file == NULL)
+        printf("cannot open config file.\n");
+    fseek(file, 0, SEEK_END);
+    file_size = ftell(file);
+    buff = (char *)alloca(file_size + 1);
+    if (buff == NULL)
+        printf("out of memory.\n");
+    rewind(file);
+    fread(buff, file_size, 1, file);
+    fclose(file);
+    buff[file_size] = '\0';
+    /* 读取global模块内容 */
+    if ((global_content = read_module(buff, "global")) == NULL)
+        printf("read global module error\n");
+    parse_global_module(global_content);
+    free(global_content);
+
+}

conf.h

@@ -0,0 +1,17 @@
+#ifndef CONF_H
+#define CONF_H
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+typedef struct conf {
+    char *PROCESS;
+    struct conf *next;
+} conf;
+
+
+extern conf *conf_head;
+extern void read_conf_link(char *path);
+
+#endif

daemon.conf

@@ -1,6 +1,6 @@
 global {
-    PROCESS_NAME = "frpc";
+    PROCESS="ls->ls -al";
-    COMMAND = "ls -al";
+    PROCESS="init->id";
     TIME = "10";
-    LOGFILE = "log.txt";
+    LOGFILE = "log_daemon.txt";
 }

main.c

@@ -1,8 +1,28 @@
 #include "main.h"
+#include "conf.h"
 #include "libconf.h"
 
-int get_process_pid(char *proces_name)
+conf *conf_head = NULL;
-{
+
+void print_conf(conf * p) {
+    conf *temp = p;             //将temp指针重新指向头结点
+    while (temp) {              //只要temp指针指向的结点的next不是Null就执行输出
+        if (temp->PROCESS)
+            printf("%s\n", temp->PROCESS);
+        temp = temp->next;
+    }
+}
+
+void free_conf(conf *p) {
+    conf *temp = p;
+    while (temp) {
+        if (temp->PROCESS)
+            free(temp->PROCESS);
+        temp = temp->next;
+    }
+}
+
+int get_process_pid(char *proces_name) {
     char bufer[PATH_SIZE];
     char comm[PATH_SIZE];
     char proc_comm_name[PATH_SIZE];
@@ -41,60 +61,103 @@ int get_process_pid(char *proces_name)
         return 0;
 }
 
-char *times()
+char *times() {
-{
     time_t t;
     struct tm *timeinfo;
+    
     time(&t);
     timeinfo = localtime(&t);
     return asctime(timeinfo);
 }
 
-int logs(char *str, char *configfile)
+int logs(char *str, char *configfile) {
-{
     FILE *fp = NULL;
+    
     fp = fopen(read_conf(configfile, "global", "LOGFILE"), "a+");
     fprintf(fp, str);
     return fclose(fp);
 }
 
-int loop(char *configfile)
+int8_t copy_new_mem(char *src, int src_len, char **dest) {
-{
+    *dest = (char *)malloc(src_len + 1);
-    FILE *fp;
+    if (*dest == NULL)
-    char buffer[PATH_SIZE];
+        return 1;
-    while (1) {
+    memcpy(*dest, src, src_len);
-        if (get_process_pid(read_conf(configfile, "global", "PROCESS_NAME")) <= 0) {
+    *((*dest)+src_len) = '\0';
-            logs(times(), configfile);
-            logs("没有运行\n", configfile);
-            fp = _popen(read_conf(configfile, "global", "COMMAND"), "r");
 
-            logs(times(), configfile);
+    return 0;
-            logs("执行结果\n", configfile);
-            while (fgets(buffer, sizeof(buffer), fp)) {
-                //printf("%s", buffer);
-                logs(buffer, configfile);
-            }
-            _pclose(fp);
-        } else {
-            logs(times(), configfile);
-            logs("运行\n", configfile);
-        }
-        sleep(atoi(read_conf(configfile, "global", "TIME")));
-    }
 }
 
-int main(int argc, char **argv, char **env)
+int loop(char *configfile, conf *p)
 {
+    conf *conf = p; 
+
+    FILE *fp;
+    char buffer[CACHE_SIZE];
+    char *key;              //键
+    char *val;              //值
+    char log_content[CACHE_SIZE];
+    memset(log_content, 0, CACHE_SIZE);
+    while (1) {
+        while (conf) {
+            if (conf->PROCESS) {
+                val = strstr(conf->PROCESS, "->");
+                copy_new_mem(conf->PROCESS, val - conf->PROCESS, &key);
+
+                if (get_process_pid(key) <= 0) {
+                    strcpy(log_content, times());
+                    strcat(log_content, key);
+                    strcat(log_content, " Not running\n");
+                    logs(log_content, configfile);
+                    
+                    fp = _popen(val+2, "r");
+                    val = NULL;
+                    memset(buffer, 0, CACHE_SIZE);
+                    while (fgets(buffer, sizeof(buffer), fp)) {
+                        //printf("%s", buffer);
+                        logs(buffer, configfile);
+                    }
+                    _pclose(fp);
+                } else {
+                    strcpy(log_content, times());
+                    strcat(log_content, key);
+                    strcat(log_content, " Running\n");
+                    logs(log_content, configfile);
+                }
+                
+                free(key);
+            }
+            conf = conf->next;
+        }
+        conf = p;
+        sleep(atoi(read_conf(configfile, "global", "TIME")));
+    }
+    
+    return 0;
+}
+
+int main(int argc, char *argv[], char **env) {
     char configfile[PATH_SIZE];
     int opt;
     
     memset(configfile, 0, PATH_SIZE);
-    while ((opt = getopt(argc, argv, "c:")) != -1) {
+    while ((opt = getopt(argc, argv, "c:h?")) != -1) {
         switch (opt) {
             case 'c':
                 strcpy(configfile, optarg);
                 break;
-                
+            case 'h':
+            case '?':
+                printf("%s\n",
+                "Process daemon\n"\
+                "Author: AIXIAO@AIXIAO.ME\n"\
+                "Usage: [-?h] [-c filename]\n"\
+                "\n"\
+                "Options:\n"\
+                    "-c          : set configuration file, (default: daemon.conf)\n"\
+                    "-? -h       : help information\n");
+                exit(1);
+                break;
             default:
                 break;
         }
@@ -103,14 +166,15 @@ int main(int argc, char **argv, char **env)
     if (strlen(configfile) == 0) {
         strcpy(configfile, "daemon.conf");
     }
-    printf("%s\n", configfile);
+
-    
+    if (daemon(1, 1)) {     // 守护, 脱离终端
-    if (daemon(1, 1)) {
         perror("daemon");
-        return 1;
     }
-
+    
-    loop(configfile);
+    read_conf_link(configfile);    
-
+    loop(configfile, conf_head);
+    free_conf(conf_head);
+    
     return 0;
 }
+

main.h

@@ -1,3 +1,7 @@
+#ifndef MAIN_H
+#define MAIN_H
+
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -6,7 +10,11 @@
 #include <dirent.h>
 #include <time.h>
 
-#define PATH_SIZE 270
+#define PATH_SIZE 2700
+#define CACHE_SIZE 2700
 
 FILE *_popen(const char *cmdstring, const char *type);
 int _pclose(FILE * fp);
+int8_t copy_new_mem(char *src, int src_len, char **dest);
+
+#endif