diff options
Diffstat (limited to 'common/main.c')
| -rw-r--r-- | common/main.c | 179 |
1 files changed, 83 insertions, 96 deletions
diff --git a/common/main.c b/common/main.c index 3788bd5..cc4b50f 100644 --- a/common/main.c +++ b/common/main.c @@ -95,14 +95,12 @@ static __inline__ int abortboot(int bootdelay) { int abort = 0; uint64_t etime = endtick(bootdelay); - struct - { + struct { char* str; u_int len; int retry; } - delaykey [] = - { + delaykey [] = { { str: getenv ("bootdelaykey"), retry: 1 }, { str: getenv ("bootdelaykey2"), retry: 1 }, { str: getenv ("bootstopkey"), retry: 0 }, @@ -498,7 +496,7 @@ void main_loop (void) #ifdef CONFIG_BOOT_RETRY_TIME /*************************************************************************** - * initialise command line timeout + * initialize command line timeout */ void init_cmd_timeout(void) { @@ -529,23 +527,9 @@ void reset_cmd_timeout(void) * Author: Janghoon Lyu <nandy@mizi.com> */ -#if 1 /* avoid redundand code -- wd */ #define putnstr(str,n) do { \ printf ("%.*s", n, str); \ } while (0) -#else -void putnstr(const char *str, size_t n) -{ - if (str == NULL) - return; - - while (n && *str != '\0') { - putc(*str); - str++; - n--; - } -} -#endif #define CTL_CH(c) ((c) - 'a' + 1) @@ -937,6 +921,7 @@ int readline (const char *const prompt) #ifdef CONFIG_CMDLINE_EDITING char *p = console_buffer; unsigned int len=MAX_CMDBUF_SIZE; + int rc; static int initted = 0; if (!initted) { @@ -946,8 +931,8 @@ int readline (const char *const prompt) puts (prompt); - cread_line(p, &len); - return len; + rc = cread_line(p, &len); + return rc < 0 ? rc : len; #else char *p = console_buffer; int n = 0; /* buffer index */ @@ -1137,97 +1122,99 @@ static void process_macros (const char *input, char *output) { char c, prev; const char *varname_start = NULL; - int inputcnt = strlen (input); + int inputcnt = strlen (input); int outputcnt = CFG_CBSIZE; - int state = 0; /* 0 = waiting for '$' */ - /* 1 = waiting for '(' or '{' */ - /* 2 = waiting for ')' or '}' */ - /* 3 = waiting for ''' */ + int state = 0; /* 0 = waiting for '$' */ + + /* 1 = waiting for '(' or '{' */ + /* 2 = waiting for ')' or '}' */ + /* 3 = waiting for ''' */ #ifdef DEBUG_PARSER char *output_start = output; - printf ("[PROCESS_MACROS] INPUT len %d: \"%s\"\n", strlen(input), input); + printf ("[PROCESS_MACROS] INPUT len %d: \"%s\"\n", strlen (input), + input); #endif - prev = '\0'; /* previous character */ + prev = '\0'; /* previous character */ while (inputcnt && outputcnt) { - c = *input++; - inputcnt--; - - if (state!=3) { - /* remove one level of escape characters */ - if ((c == '\\') && (prev != '\\')) { - if (inputcnt-- == 0) - break; - prev = c; c = *input++; - } - } - - switch (state) { - case 0: /* Waiting for (unescaped) $ */ - if ((c == '\'') && (prev != '\\')) { - state = 3; - break; - } - if ((c == '$') && (prev != '\\')) { - state++; - } else { - *(output++) = c; - outputcnt--; + inputcnt--; + + if (state != 3) { + /* remove one level of escape characters */ + if ((c == '\\') && (prev != '\\')) { + if (inputcnt-- == 0) + break; + prev = c; + c = *input++; + } } - break; - case 1: /* Waiting for ( */ - if (c == '(' || c == '{') { - state++; - varname_start = input; - } else { - state = 0; - *(output++) = '$'; - outputcnt--; - - if (outputcnt) { + + switch (state) { + case 0: /* Waiting for (unescaped) $ */ + if ((c == '\'') && (prev != '\\')) { + state = 3; + break; + } + if ((c == '$') && (prev != '\\')) { + state++; + } else { *(output++) = c; outputcnt--; } - } - break; - case 2: /* Waiting for ) */ - if (c == ')' || c == '}') { - int i; - char envname[CFG_CBSIZE], *envval; - int envcnt = input-varname_start-1; /* Varname # of chars */ - - /* Get the varname */ - for (i = 0; i < envcnt; i++) { - envname[i] = varname_start[i]; - } - envname[i] = 0; - - /* Get its value */ - envval = getenv (envname); + break; + case 1: /* Waiting for ( */ + if (c == '(' || c == '{') { + state++; + varname_start = input; + } else { + state = 0; + *(output++) = '$'; + outputcnt--; - /* Copy into the line if it exists */ - if (envval != NULL) - while ((*envval) && outputcnt) { - *(output++) = *(envval++); + if (outputcnt) { + *(output++) = c; outputcnt--; } - /* Look for another '$' */ - state = 0; - } - break; - case 3: /* Waiting for ' */ - if ((c == '\'') && (prev != '\\')) { - state = 0; - } else { - *(output++) = c; - outputcnt--; + } + break; + case 2: /* Waiting for ) */ + if (c == ')' || c == '}') { + int i; + char envname[CFG_CBSIZE], *envval; + int envcnt = input - varname_start - 1; /* Varname # of chars */ + + /* Get the varname */ + for (i = 0; i < envcnt; i++) { + envname[i] = varname_start[i]; + } + envname[i] = 0; + + /* Get its value */ + envval = getenv (envname); + + /* Copy into the line if it exists */ + if (envval != NULL) + while ((*envval) && outputcnt) { + *(output++) = *(envval++); + outputcnt--; + } + /* Look for another '$' */ + state = 0; + } + break; + case 3: /* Waiting for ' */ + if ((c == '\'') && (prev != '\\')) { + state = 0; + } else { + *(output++) = c; + outputcnt--; + } + break; } - break; - } - prev = c; + prev = c; } if (outputcnt) @@ -1235,7 +1222,7 @@ static void process_macros (const char *input, char *output) #ifdef DEBUG_PARSER printf ("[PROCESS_MACROS] OUTPUT len %d: \"%s\"\n", - strlen(output_start), output_start); + strlen (output_start), output_start); #endif } |