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cgpt_wrapper: Resolve the path to "cgpt" command

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Because we do not use "execvp", "cgpt.bin" is not resolved to the same
directory as "cgpt". So we need to resolve the original command to its
absolute path first, then append ".bin" to it.

BUG=None
BRANCH=None
TEST="cgpt" no longer fails.

Change-Id: Id22c2d97616867125e9744c00bbf527f8a176df4
Reviewed-on: https://chromium-review.googlesource.com/242294
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Tested-by: Nam Nguyen <namnguyen@chromium.org>
Commit-Queue: Nam Nguyen <namnguyen@google.com>
This commit is contained in:
Nam T. Nguyen
2015-01-21 14:02:13 -08:00
committed by ChromeOS Commit Bot
parent c67b061cb5
commit 9fa6afce26
1 changed files with 17 additions and 0 deletions
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17
cgpt/cgpt_wrapper.c
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@@ -140,6 +140,23 @@ cleanup:
}
int main(int argc, const char *argv[]) {
char resolved_cgpt[PATH_MAX];
pid_t pid = getpid();
char exe_link[40];
if (argc < 1) {
return -1;
}
snprintf(exe_link, sizeof(exe_link), "/proc/%d/exe", pid);
memset(resolved_cgpt, 0, sizeof(resolved_cgpt));
if (readlink(exe_link, resolved_cgpt, sizeof(resolved_cgpt) - 1) == -1) {
perror("readlink");
return -1;
}
argv[0] = resolved_cgpt;
if (argc > 2 && !has_dash_D(argc, argv)) {
const char *mtd_device = find_mtd_device(argc, argv);
if (mtd_device) {