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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72604 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2009-05-30 01:09:53 +00:00
parent 4d4eab219a
commit 51b16f4737
16 changed files with 70 additions and 75 deletions
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77
lib/System/Unix/Path.inc
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@ -271,52 +271,52 @@ static int
test_dir(char buf[PATH_MAX], char ret[PATH_MAX],
const char *dir, const char *bin)
{
struct stat sb;
struct stat sb;
snprintf(buf, PATH_MAX, "%s//%s", dir, bin);
if (realpath(buf, ret) == NULL)
return (1);
if (stat(buf, &sb) != 0)
return (1);
return (0);
snprintf(buf, PATH_MAX, "%s//%s", dir, bin);
if (realpath(buf, ret) == NULL)
return (1);
if (stat(buf, &sb) != 0)
return (1);
return (0);
}
static char *
getprogpath(char ret[PATH_MAX], const char *bin)
{
char *pv, *s, *t, buf[PATH_MAX];
char *pv, *s, *t, buf[PATH_MAX];
/* First approach: absolute path. */
if (bin[0] == '/') {
if (test_dir(buf, ret, "/", bin) == 0)
return (ret);
return (NULL);
}
/* First approach: absolute path. */
if (bin[0] == '/') {
if (test_dir(buf, ret, "/", bin) == 0)
return (ret);
return (NULL);
}
/* Second approach: relative path. */
if (strchr(bin, '/') != NULL) {
if (getcwd(buf, PATH_MAX) == NULL)
return (NULL);
if (test_dir(buf, ret, buf, bin) == 0)
return (ret);
return (NULL);
}
/* Second approach: relative path. */
if (strchr(bin, '/') != NULL) {
if (getcwd(buf, PATH_MAX) == NULL)
return (NULL);
if (test_dir(buf, ret, buf, bin) == 0)
return (ret);
return (NULL);
}
/* Third approach: $PATH */
if ((pv = getenv("PATH")) == NULL)
return (NULL);
s = pv = strdup(pv);
if (pv == NULL)
return (NULL);
while ((t = strsep(&s, ":")) != NULL) {
if (test_dir(buf, ret, t, bin) == 0) {
free(pv);
return (ret);
}
}
free(pv);
return (NULL);
/* Third approach: $PATH */
if ((pv = getenv("PATH")) == NULL)
return (NULL);
s = pv = strdup(pv);
if (pv == NULL)
return (NULL);
while ((t = strsep(&s, ":")) != NULL) {
if (test_dir(buf, ret, t, bin) == 0) {
free(pv);
return (ret);
}
}
free(pv);
return (NULL);
}
#endif
@ -341,7 +341,7 @@ Path Path::GetMainExecutable(const char *argv0, void *MainAddr) {
int err = dladdr(MainAddr, &DLInfo);
if (err == 0)
return Path();
// If the filename is a symlink, we need to resolve and return the location of
// the actual executable.
char link_path[MAXPATHLEN];
@ -874,4 +874,3 @@ void Path::UnMapFilePages(const char *BasePtr, uint64_t FileSize) {
}
} // end llvm namespace