config.c

#include <stdio.h>    
#include <stdlib.h>    
#include <string.h>    
#include <assert.h>    
#include <ctype.h>    
#include <errno.h>    
#include "config.h"    
        
        
    /*   删除左边的空格   */    
    char * l_trim(char * szOutput, const char *szInput)    
    {    
        assert(szInput != NULL);    
        assert(szOutput != NULL);    
        assert(szOutput != szInput);    
        for   (NULL; *szInput != '\0' && isspace(*szInput); ++szInput){    
            ;    
        }    
        return strcpy(szOutput, szInput);    
    }    
        
    /*   删除右边的空格   */    
    char *r_trim(char *szOutput, const char *szInput)    
    {    
        char *p = NULL;    
        assert(szInput != NULL);    
        assert(szOutput != NULL);    
        assert(szOutput != szInput);    
        strcpy(szOutput, szInput);    
        for(p = szOutput + strlen(szOutput) - 1; p >= szOutput && isspace(*p); --p){    
            ;    
        }    
        *(++p) = '\0';    
        return szOutput;    
    }    
        
    /*   删除两边的空格   */    
    char * a_trim(char * szOutput, const char * szInput)    
    {    
        char *p = NULL;    
        assert(szInput != NULL);    
        assert(szOutput != NULL);    
        l_trim(szOutput, szInput);    
        for   (p = szOutput + strlen(szOutput) - 1;p >= szOutput && isspace(*p); --p){    
            ;    
        }    
        *(++p) = '\0';    
        return szOutput;    
    }    
        
        
    int GetProfileString(char *profile, char *AppName, char *KeyName, char *KeyVal )    
    {    
        char appname[32],keyname[32];    
        char *buf,*c;    
        char buf_i[KEYVALLEN], buf_o[KEYVALLEN];    
        FILE *fp;    
        int found=0; /* 1 AppName 2 KeyName */    
        if( (fp=fopen( profile,"r" ))==NULL ){    
            printf( "openfile [%s] error [%s]\n",profile,strerror(errno) );    
            return(-1);    
        }    
        fseek( fp, 0, SEEK_SET );    
        memset( appname, 0, sizeof(appname) );    
        sprintf( appname,"[%s]", AppName );    
        
        while( !feof(fp) && fgets( buf_i, KEYVALLEN, fp )!=NULL ){    
            l_trim(buf_o, buf_i);    
            if( strlen(buf_o) <= 0 )    
                continue;    
            buf = NULL;    
            buf = buf_o;    
        
            if( found == 0 ){    
                if( buf[0] != '[' ) {    
                    continue;    
                } else if ( strncmp(buf,appname,strlen(appname))==0 ){    
                    found = 1;    
                    continue;    
                }    
        
            } else if( found == 1 ){    
                if( buf[0] == '#' ){    
                    continue;    
                } else if ( buf[0] == '[' ) {    
                    break;    
                } else {    
                    if( (c = (char*)strchr(buf, '=')) == NULL )    
                        continue;    
                    memset( keyname, 0, sizeof(keyname) );    
        
                    sscanf( buf, "%[^=|^ |^\t]", keyname );    
                    if( strcmp(keyname, KeyName) == 0 ){    
                        sscanf( ++c, "%[^\n]", KeyVal );    
                        char *KeyVal_o = (char *)malloc(strlen(KeyVal) + 1);    
                        if(KeyVal_o != NULL){    
                            memset(KeyVal_o, 0, sizeof(KeyVal_o));    
                            a_trim(KeyVal_o, KeyVal);    
                            if(KeyVal_o && strlen(KeyVal_o) > 0)    
                                strcpy(KeyVal, KeyVal_o);    
                            free(KeyVal_o);    
                            KeyVal_o = NULL;    
                        }    
                        found = 2;    
                        break;    
                    } else {    
                        continue;    
                    }    
                }    
            }    
        }    
        fclose( fp );    
        if( found == 2 )    
            return(0);    
        else    
            return(-1);    
    }