X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fuci.git;a=blobdiff_plain;f=libuci.c;h=47c815a4e9e68480399aaf7e2b63b49ee70e07a3;hp=ccf29b7ca708f5d143bff88ca457acae90ed518a;hb=9487b850844e4fb873b90cf357c2d0367ebc065c;hpb=a652efc7675db8b2c0571899609b42e539162141 diff --git a/libuci.c b/libuci.c index ccf29b7..47c815a 100644 --- a/libuci.c +++ b/libuci.c @@ -21,60 +21,17 @@ #include #include #include - -#include "libuci.h" +#include "uci.h" #define DEBUG +#include "err.h" -#ifdef DEBUG -#define DPRINTF(...) fprintf(stderr, __VA_ARGS__) -#else -#define DPRINTF(...) -#endif -/* - * throw an uci exception and store the error number - * in the context. - */ -#define UCI_THROW(ctx, err) do { \ - longjmp(ctx->trap, err); \ -} while (0) - -/* - * store the return address for handling exceptions - * needs to be called in every externally visible library function - * - * NB: this does not handle recursion at all. Calling externally visible - * functions from other uci functions is only allowed at the end of the - * calling function. - */ -#define UCI_HANDLE_ERR(ctx) do { \ - int __val; \ - if (!ctx) \ - return UCI_ERR_INVAL; \ - __val = setjmp(ctx->trap); \ - if (__val) { \ - ctx->errno = __val; \ - return __val; \ - } \ -} while (0) - -/* - * check the specified condition. - * throw an invalid argument exception if it's false - */ -#define UCI_ASSERT(ctx, expr) do { \ - if (!(expr)) { \ - DPRINTF("[%s:%d] Assertion failed\n", __FILE__, __LINE__); \ - UCI_THROW(ctx, UCI_ERR_INVAL); \ - } \ -} while (0) - - -static char *uci_errstr[] = { +static const char *uci_errstr[] = { [UCI_OK] = "Success", [UCI_ERR_MEM] = "Out of memory", [UCI_ERR_INVAL] = "Invalid argument", [UCI_ERR_NOTFOUND] = "Entry not found", + [UCI_ERR_IO] = "I/O error", [UCI_ERR_PARSE] = "Parse error", [UCI_ERR_UNKNOWN] = "Unknown error", }; @@ -86,7 +43,7 @@ static char *uci_errstr[] = { static void *uci_malloc(struct uci_context *ctx, size_t size) { void *ptr; - + ptr = malloc(size); if (!ptr) UCI_THROW(ctx, UCI_ERR_MEM); @@ -107,25 +64,52 @@ static void *uci_realloc(struct uci_context *ctx, void *ptr, size_t size) return ptr; } -#include "hash.c" -#include "parse.c" +/* + * UCI wrapper for strdup, which uses exception handling + */ +static char *uci_strdup(struct uci_context *ctx, const char *str) +{ + char *ptr; + + ptr = strdup(str); + if (!ptr) + UCI_THROW(ctx, UCI_ERR_MEM); + + return ptr; +} + +#include "list.c" +#include "file.c" /* externally visible functions */ struct uci_context *uci_alloc(void) { struct uci_context *ctx; - + ctx = (struct uci_context *) malloc(sizeof(struct uci_context)); memset(ctx, 0, sizeof(struct uci_context)); - + uci_list_init(&ctx->root); + return ctx; } +void uci_free(struct uci_context *ctx) +{ + struct uci_config *cfg; + + uci_cleanup(ctx); + uci_foreach_entry(config, &ctx->root, cfg) { + uci_drop_config(cfg); + } + free(ctx); + return; +} + int uci_cleanup(struct uci_context *ctx) { UCI_HANDLE_ERR(ctx); - uci_parse_cleanup(ctx); + uci_file_cleanup(ctx); return 0; } @@ -137,14 +121,14 @@ void uci_perror(struct uci_context *ctx, const char *str) err = UCI_ERR_INVAL; else err = ctx->errno; - + if ((err < 0) || (err >= UCI_ERR_LAST)) err = UCI_ERR_UNKNOWN; switch (err) { case UCI_ERR_PARSE: if (ctx->pctx) { - fprintf(stderr, "%s: %s at line %d, byte %d\n", str, uci_errstr[err], ctx->pctx->line, ctx->pctx->byte); + fprintf(stderr, "%s: %s (%s) at line %d, byte %d\n", str, uci_errstr[err], (ctx->pctx->reason ? ctx->pctx->reason : "unknown"), ctx->pctx->line, ctx->pctx->byte); break; } /* fall through */