diff options
| -rwxr-xr-x | binfile/binfile.c | 39 |
1 files changed, 31 insertions, 8 deletions
diff --git a/binfile/binfile.c b/binfile/binfile.c index 1431674..bdd634e 100755 --- a/binfile/binfile.c +++ b/binfile/binfile.c @@ -28,6 +28,7 @@ static t_class *binfile_class; #define ALLOC_BLOCK_SIZE 65536 /* number of bytes to add when resizing buffer */ +#define PATH_BUF_SIZE 1024 /* maximumn length of a file path */ typedef struct t_binfile { @@ -36,7 +37,8 @@ typedef struct t_binfile t_outlet *x_info_outlet; t_outlet *x_bang_outlet; FILE *x_fP; - char x_fPath[MAXPDSTRING]; + t_symbol *x_our_directory; + char x_fPath[PATH_BUF_SIZE]; char *x_buf; /* read/write buffer in memory for file contents */ size_t x_buf_length; /* current length of buf */ size_t x_length; /* current length of valid data in buf */ @@ -96,6 +98,7 @@ static void *binfile_new(t_symbol *s, int argc, t_atom *argv) } x->x_fP = NULL; x->x_fPath[0] = '\0'; + x->x_our_directory = canvas_getcurrentdir();/* get the current directory to use as the base for relative file paths */ x->x_buf_length = ALLOC_BLOCK_SIZE; x->x_rd_offset = x->x_wr_offset = x->x_length = 0L; /* find the first string in the arg list and interpret it as a path to a file */ @@ -140,14 +143,34 @@ static FILE *binfile_open_path(t_binfile *x, char *path, char *mode) /* binfile_open_path attempts to open the file for binary mode reading. */ /* Returns FILE pointer if successful, else 0. */ { - FILE *fP; - char tryPath[MAXPDSTRING]; + FILE *fP = NULL; + char tryPath[PATH_BUF_SIZE]; + char slash[] = "/"; - strncpy(tryPath, path, MAXPDSTRING-1); /* copy path into a length-limited buffer */ - /* ...if it doesn't work we won't mess up x->x_fPath */ - tryPath[MAXPDSTRING-1] = '\0'; /* just make sure there is a null termination */ - - return fopen(tryPath, mode); + /* If the first character of the path is a slash then the path is absolute */ + /* On MSW if the second character of the path is a colon then the path is absolute */ + if ((path[0] == '/') || (path[0] == '\\') || (path[1] == ':')) + { + strncpy(tryPath, path, PATH_BUF_SIZE-1); /* copy path into a length-limited buffer */ + /* ...if it doesn't work we won't mess up x->fPath */ + tryPath[PATH_BUF_SIZE-1] = '\0'; /* just make sure there is a null termination */ + fP = fopen(tryPath, mode); + } + if (fP == NULL) + { + /* Then try to open the path from the current directory */ + strncpy(tryPath, x->x_our_directory->s_name, PATH_BUF_SIZE-1); /* copy directory into a length-limited buffer */ + strncat(tryPath, slash, PATH_BUF_SIZE-1); /* append path to a length-limited buffer */ + strncat(tryPath, path, PATH_BUF_SIZE-1); /* append path to a length-limited buffer */ + /* ...if it doesn't work we won't mess up x->fPath */ + tryPath[PATH_BUF_SIZE-1] = '\0'; /* make sure there is a null termination */ + fP = fopen(tryPath, mode); + } + if (fP != NULL) + strncpy(x->x_fPath, tryPath, PATH_BUF_SIZE); + else + x->x_fPath[0] = '\0'; + return fP; } static void binfile_write(t_binfile *x, t_symbol *path) |