algunas estadisticas

[z.facultad/75.06/emufs.git] / emufs / idx.c

diff --git a/emufs/idx.c b/emufs/idx.c
index a46c46b77f07bfe150662cddb4607912ae7c0943..7e485451a84b06c8308017673c1589fdadd788ab 100644 (file)
--- a/emufs/idx.c
+++ b/emufs/idx.c
@@ -233,8 +233,10 @@ EMUFS_REG_ID emufs_idx_get_count(EMUFS *emu)
        strcpy(name_f_idx,emu->nombre);
        strcat(name_f_idx, EMUFS_IDX_EXT);
 
-       fp = fopen(name_f_idx, "rb");
-       if (fp == NULL) return 0;
+       if ( (fp = fopen(name_f_idx, "rb"))==NULL){
+               PERR("No se pudo abrir el archvo");
+               return -1;
+       }
 
        fseek(fp, 0l, SEEK_END);
        tam = ftell(fp);
@@ -252,8 +254,10 @@ EMUFS_REG_ID emufs_idx_get_id_at(EMUFS *emu, long pos)
        strcpy(name_f_idx,emu->nombre);
        strcat(name_f_idx, EMUFS_IDX_EXT);
 
-       fp = fopen(name_f_idx, "rb");
-       if (fp == NULL) return EMUFS_NOT_FOUND;
+       if ( (fp = fopen(name_f_idx, "rb")) == NULL){
+               PERR("No se pudo abrir el archivo");
+               return -1;
+       }
 
        fseek(fp, pos*sizeof(EMUFS_IDX), SEEK_SET);
        fread(&id, sizeof(EMUFS_IDX), 1, fp);
@@ -262,17 +266,27 @@ EMUFS_REG_ID emufs_idx_get_id_at(EMUFS *emu, long pos)
        return id.id_reg;
 }
 
-int emufs_idx_get_cant_reg(EMUFS* emu)
+int emufs_idx_existe_id(EMUFS *emu, int ID)
 {
        FILE *fp;
        char name_f_idx[255];
-       long cant;      
+       EMUFS_IDX id;
+       
        strcpy(name_f_idx,emu->nombre);
        strcat(name_f_idx, EMUFS_IDX_EXT);
 
-       if ( (fp = fopen(name_f_idx, "r")) == NULL ) return -1;/*EMUFS_NOT_FOUND*/;
-       fseek(fp, 0, SEEK_END);
-       cant = ftell(fp)/sizeof(EMUFS_IDX);     
+       if ( (fp = fopen(name_f_idx, "rb")) == NULL){
+               PERR("No se pudo abrir el archivo");
+               return -1;
+       }
+       
+       while ( !feof(fp) ){
+               fread(&id, sizeof(EMUFS_IDX), 1, fp);
+               if ( id.id_reg == ID ){
+                       fclose(fp);
+                       return 0;
+               }
+       }
        fclose(fp);
-       return cant;
+       return -1;
 }