#cat bb.c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#define KEYVALLEN 100
/* Delete left side blank */
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);
}
/* Delete right side blank */
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;
}
/* Delete both side blank */
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);
}
void main()
{
char ip[16];
char dev[10];
GetProfileString("./bb.txt", "cls_server", "ip", ip);
GetProfileString("./bb.txt", "device", "dev", dev);
printf("%s\n", ip);
printf("%s\n", dev);
}
#cat bb.txt
[cls_server]
#配置文件等号左右可以有空格也可以没有
ip=192.16.31.2
[device]
dev=sda
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