eclipse - Raspberry PI 2 - How to get file-access for c-program to write on disc -


i using raspbian on rpi2 , tried create/change sqlite database c-program.

here little bit code:

static sqlite3 *db; static char *zerrmsg    = 0; //.... sqlite3_open(path_database, &db); char *sql_statement = "create table if not exists mytable (datetime bigint, myval bigint)"; sqlite3_exec(db,sql_statement, null, null, &zerrmsg);  sqlite3_close(db);

as ide use eclipse cdt.

in eclipse debug-mode , executing program double click (in "sudo startx" mode), raspbian creates me database file.

if start program via terminal (sudo /home/pi/test/myprogram) no database-file created.

folder "test" , executable "myprogram" have both chmod 755 access. searched lot, found nothing helps me.

each 1 of sqlite3 functions returns error code. after every call, check error code sqlite_ok. if isn't, function failed, , need handle error.

you can call sqlite3_errstr convert error code string.

for more information error handling in sqlite3, see https://www.sqlite.org/c3ref/errcode.html .


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