diff options
Diffstat (limited to 'common/main.c')
| -rw-r--r-- | common/main.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/common/main.c b/common/main.c index a93335798..d96ba0a89 100644 --- a/common/main.c +++ b/common/main.c @@ -30,6 +30,7 @@ #include <common.h> #include <watchdog.h> #include <command.h> +#include <malloc.h> #include <version.h> #ifdef CONFIG_MODEM_SUPPORT #include <malloc.h> /* for free() prototype */ @@ -1373,6 +1374,90 @@ int run_command(const char *cmd, int flag) #endif } +#ifndef CONFIG_SYS_HUSH_PARSER +/** + * Execute a list of command separated by ; or \n using the built-in parser. + * + * This function cannot take a const char * for the command, since if it + * finds newlines in the string, it replaces them with \0. + * + * @param cmd String containing list of commands + * @param flag Execution flags (CMD_FLAG_...) + * @return 0 on success, or != 0 on error. + */ +static int builtin_run_command_list(char *cmd, int flag) +{ + char *line, *next; + int rcode = 0; + + /* + * Break into individual lines, and execute each line; terminate on + * error. + */ + line = next = cmd; + while (*next) { + if (*next == '\n') { + *next = '\0'; + /* run only non-empty commands */ + if (*line) { + debug("** exec: \"%s\"\n", line); + if (builtin_run_command(line, 0) < 0) { + rcode = 1; + break; + } + } + line = next + 1; + } + ++next; + } + if (rcode == 0 && *line) + rcode = (builtin_run_command(line, 0) >= 0); + + return rcode; +} +#endif + +int run_command_list(const char *cmd, int len, int flag) +{ + int need_buff = 1; + char *buff = (char *)cmd; /* cast away const */ + int rcode = 0; + + if (len == -1) { + len = strlen(cmd); +#ifdef CONFIG_SYS_HUSH_PARSER + /* hush will never change our string */ + need_buff = 0; +#else + /* the built-in parser will change our string if it sees \n */ + need_buff = strchr(cmd, '\n') != NULL; +#endif + } + if (need_buff) { + buff = malloc(len + 1); + if (!buff) + return 1; + memcpy(buff, cmd, len); + buff[len] = '\0'; + } +#ifdef CONFIG_SYS_HUSH_PARSER + rcode = parse_string_outer(buff, FLAG_PARSE_SEMICOLON); +#else + /* + * This function will overwrite any \n it sees with a \0, which + * is why it can't work with a const char *. Here we are making + * using of internal knowledge of this function, to avoid always + * doing a malloc() which is actually required only in a case that + * is pretty rare. + */ + rcode = builtin_run_command_list(buff, flag); + if (need_buff) + free(buff); +#endif + + return rcode; +} + /****************************************************************************/ #if defined(CONFIG_CMD_RUN) |