Added support for a ``-v'' option for fw_setenv to explicitly enable what was formerly default verbose diagnostic output when updating the environment.
Signed-off-by: Grant Erickson gerickson@nuovations.com --- tools/env/fw_env.c | 43 +++++++++++++++++++++++++++++-------------- tools/env/fw_env_main.c | 4 +++- 2 files changed, 32 insertions(+), 15 deletions(-)
diff --git a/tools/env/fw_env_main.c b/tools/env/fw_env_main.c index 7f631c4..c195de9 100644 --- a/tools/env/fw_env_main.c +++ b/tools/env/fw_env_main.c @@ -30,13 +30,15 @@ * "name", the ``name=value'' pairs of one or more * environment variables "name", or the whole * environment if no names are specified. - * fw_setenv name [ value ... ] + * fw_setenv [ -v ] name [ value ... ] * - If a name without any values is given, the variable * with this name is deleted from the environment; * otherwise, all "value" arguments are concatenated, * separated by single blank characters, and the * resulting string is assigned to the environment * variable "name" + * - With the ``-v''option asserted, verbose progress is + * displayed as the environment is updated. */
#include <stdio.h> diff --git a/tools/env/fw_env.c b/tools/env/fw_env.c index b8bca91..836a9b9 100644 --- a/tools/env/fw_env.c +++ b/tools/env/fw_env.c @@ -23,6 +23,7 @@
#include <errno.h> #include <fcntl.h> +#include <stdbool.h> #include <stdio.h> #include <stdlib.h> #include <stddef.h> @@ -159,7 +160,7 @@ static char default_environment[] = { "\0" /* Termimate env_t data with 2 NULs */ };
-static int flash_io (int mode); +static int flash_io (int mode, bool v_flag); static char *envmatch (char * s1, char * s2); static int env_init (void); static int parse_config (void); @@ -288,7 +289,7 @@ int fw_printenv (int argc, char *argv[]) */ int fw_setenv (int argc, char *argv[]) { - int i, len; + int i, len, v_flag; char *env, *nxt; char *oldval = NULL; char *name; @@ -297,6 +298,16 @@ int fw_setenv (int argc, char *argv[]) return (EINVAL); }
+ if (strcmp (argv[1], "-v") == 0) { + v_flag = true; + ++argv; + --argc; + if (argc < 2) + return (EINVAL); + } else { + v_flag = false; + } + if (env_init ()) return (errno);
@@ -386,7 +397,7 @@ int fw_setenv (int argc, char *argv[]) environment.crc = crc32 (0, (uint8_t*) environment.data, ENV_SIZE);
/* write environment back to flash */ - if (flash_io (O_RDWR)) { + if (flash_io (O_RDWR, v_flag)) { fprintf (stderr, "Error: can't write fw_env to flash\n"); return (-1); } @@ -394,11 +405,14 @@ int fw_setenv (int argc, char *argv[]) return (0); }
-static int flash_io (int mode) +static int flash_io (int mode, bool v_flag) { int fd, fdr, rc, otherdev, len, resid; erase_info_t erase; char *data = NULL; + FILE *diag = NULL; + + diag = (v_flag ? stdout : fopen("/dev/null", "r+"));
if ((fd = open (DEVNAME (curdev), mode)) < 0) { fprintf (stderr, @@ -427,7 +441,7 @@ static int flash_io (int mode) otherdev = curdev; fdr = fd; } - printf ("Unlocking flash...\n"); + fprintf (diag, "Unlocking flash...\n"); erase.length = DEVESIZE (otherdev); erase.start = DEVOFFSET (otherdev); ioctl (fdr, MEMUNLOCK, &erase); @@ -439,7 +453,7 @@ static int flash_io (int mode) environment.flags = active_flag; }
- printf ("Done\n"); + fprintf (diag, "Done\n"); resid = DEVESIZE (otherdev) - CFG_ENV_SIZE; if (resid) { if ((data = malloc (resid)) == NULL) { @@ -465,7 +479,7 @@ static int flash_io (int mode) } }
- printf ("Erasing old environment...\n"); + fprintf (diag, "Erasing old environment...\n");
erase.length = DEVESIZE (otherdev); erase.start = DEVOFFSET (otherdev); @@ -476,9 +490,10 @@ static int flash_io (int mode) return (-1); }
- printf ("Done\n"); + fprintf (diag, "Done\n");
- printf ("Writing environment to %s...\n", DEVNAME (otherdev)); + fprintf (diag, "Writing environment to %s...\n", + DEVNAME (otherdev)); if (lseek (fdr, DEVOFFSET (otherdev), SEEK_SET) == -1) { fprintf (stderr, "seek error on %s: %s\n", @@ -522,8 +537,8 @@ static int flash_io (int mode) return (-1); } } - printf ("Done\n"); - printf ("Locking ...\n"); + fprintf (diag, "Done\n"); + fprintf (diag, "Locking ...\n"); erase.length = DEVESIZE (otherdev); erase.start = DEVOFFSET (otherdev); ioctl (fdr, MEMLOCK, &erase); @@ -539,7 +554,7 @@ static int flash_io (int mode) return (-1); } } - printf ("Done\n"); + fprintf (diag, "Done\n"); } else {
if (lseek (fd, DEVOFFSET (curdev), SEEK_SET) == -1) { @@ -614,7 +629,7 @@ static int env_init (void) /* read environment from FLASH to local buffer */ environment.data = addr1; curdev = 0; - if (flash_io (O_RDONLY)) { + if (flash_io (O_RDONLY, false)) { return (errno); }
@@ -638,8 +653,7 @@ static int env_init (void) } environment.data = addr2;
- if (flash_io (O_RDONLY)) { + if (flash_io (O_RDONLY, false)) { return (errno); }