ANSI-fied sources, converted to four-space indentation.

This commit is contained in:
Fred Drake 2000-07-08 06:16:37 +00:00
parent da940d8f8d
commit edabdc1e9e
1 changed files with 329 additions and 338 deletions

View File

@ -139,13 +139,12 @@ static char *module_search_path = NULL;
static char lib_python[20]; /* Dynamically set to "lib/python" VERSION */
static void
reduce(dir)
char *dir;
reduce(char *dir)
{
size_t i = strlen(dir);
while (i > 0 && dir[i] != SEP)
--i;
dir[i] = '\0';
size_t i = strlen(dir);
while (i > 0 && dir[i] != SEP)
--i;
dir[i] = '\0';
}
@ -158,239 +157,231 @@ reduce(dir)
#endif
static int
isfile(filename) /* Is file, not directory */
char *filename;
isfile(char *filename) /* Is file, not directory */
{
struct stat buf;
if (stat(filename, &buf) != 0)
return 0;
if (!S_ISREG(buf.st_mode))
return 0;
return 1;
struct stat buf;
if (stat(filename, &buf) != 0)
return 0;
if (!S_ISREG(buf.st_mode))
return 0;
return 1;
}
static int
ismodule(filename) /* Is module -- check for .pyc/.pyo too */
char *filename;
ismodule(char *filename) /* Is module -- check for .pyc/.pyo too */
{
if (isfile(filename))
return 1;
if (isfile(filename))
return 1;
/* Check for the compiled version of prefix. */
if (strlen(filename) < MAXPATHLEN) {
strcat(filename, Py_OptimizeFlag ? "o" : "c");
if (isfile(filename))
return 1;
}
return 0;
/* Check for the compiled version of prefix. */
if (strlen(filename) < MAXPATHLEN) {
strcat(filename, Py_OptimizeFlag ? "o" : "c");
if (isfile(filename))
return 1;
}
return 0;
}
static int
isxfile(filename) /* Is executable file */
char *filename;
isxfile(char *filename) /* Is executable file */
{
struct stat buf;
if (stat(filename, &buf) != 0)
return 0;
if (!S_ISREG(buf.st_mode))
return 0;
if ((buf.st_mode & 0111) == 0)
return 0;
return 1;
struct stat buf;
if (stat(filename, &buf) != 0)
return 0;
if (!S_ISREG(buf.st_mode))
return 0;
if ((buf.st_mode & 0111) == 0)
return 0;
return 1;
}
static int
isdir(filename) /* Is directory */
char *filename;
isdir(char *filename) /* Is directory */
{
struct stat buf;
if (stat(filename, &buf) != 0)
return 0;
if (!S_ISDIR(buf.st_mode))
return 0;
return 1;
struct stat buf;
if (stat(filename, &buf) != 0)
return 0;
if (!S_ISDIR(buf.st_mode))
return 0;
return 1;
}
static void
joinpath(buffer, stuff)
char *buffer;
char *stuff;
joinpath(char *buffer, char *stuff)
{
size_t n, k;
if (stuff[0] == SEP)
n = 0;
else {
n = strlen(buffer);
if (n > 0 && buffer[n-1] != SEP && n < MAXPATHLEN)
buffer[n++] = SEP;
}
k = strlen(stuff);
if (n + k > MAXPATHLEN)
k = MAXPATHLEN - n;
strncpy(buffer+n, stuff, k);
buffer[n+k] = '\0';
size_t n, k;
if (stuff[0] == SEP)
n = 0;
else {
n = strlen(buffer);
if (n > 0 && buffer[n-1] != SEP && n < MAXPATHLEN)
buffer[n++] = SEP;
}
k = strlen(stuff);
if (n + k > MAXPATHLEN)
k = MAXPATHLEN - n;
strncpy(buffer+n, stuff, k);
buffer[n+k] = '\0';
}
static int
search_for_prefix(argv0_path, home)
char *argv0_path;
char *home;
search_for_prefix(char *argv0_path, char *home)
{
size_t n;
char *vpath;
size_t n;
char *vpath;
/* If PYTHONHOME is set, we believe it unconditionally */
if (home) {
char *delim;
strcpy(prefix, home);
delim = strchr(prefix, DELIM);
if (delim)
*delim = '\0';
joinpath(prefix, lib_python);
joinpath(prefix, LANDMARK);
return 1;
}
/* If PYTHONHOME is set, we believe it unconditionally */
if (home) {
char *delim;
strcpy(prefix, home);
delim = strchr(prefix, DELIM);
if (delim)
*delim = '\0';
joinpath(prefix, lib_python);
joinpath(prefix, LANDMARK);
return 1;
}
/* Check to see if argv[0] is in the build directory */
strcpy(prefix, argv0_path);
joinpath(prefix, "Modules/Setup");
if (isfile(prefix)) {
/* Check VPATH to see if argv0_path is in the build directory.
* Complication: the VPATH passed in is relative to the
* Modules build directory and points to the Modules source
* directory; we need it relative to the build tree and
* pointing to the source tree. Solution: chop off a leading
* ".." (but only if it's there -- it could be an absolute
* path) and chop off the final component (assuming it's
* "Modules").
*/
vpath = VPATH;
if (vpath[0] == '.' && vpath[1] == '.' && vpath[2] == '/')
vpath += 3;
strcpy(prefix, argv0_path);
joinpath(prefix, vpath);
reduce(prefix);
joinpath(prefix, "Lib");
joinpath(prefix, LANDMARK);
if (ismodule(prefix))
return -1;
}
/* Check to see if argv[0] is in the build directory */
strcpy(prefix, argv0_path);
joinpath(prefix, "Modules/Setup");
if (isfile(prefix)) {
/* Check VPATH to see if argv0_path is in the build directory.
* Complication: the VPATH passed in is relative to the
* Modules build directory and points to the Modules source
* directory; we need it relative to the build tree and
* pointing to the source tree. Solution: chop off a leading
* ".." (but only if it's there -- it could be an absolute
* path) and chop off the final component (assuming it's
* "Modules").
*/
vpath = VPATH;
if (vpath[0] == '.' && vpath[1] == '.' && vpath[2] == '/')
vpath += 3;
strcpy(prefix, argv0_path);
joinpath(prefix, vpath);
reduce(prefix);
joinpath(prefix, "Lib");
joinpath(prefix, LANDMARK);
if (ismodule(prefix))
return -1;
}
/* Search from argv0_path, until root is found */
strcpy(prefix, argv0_path);
do {
n = strlen(prefix);
joinpath(prefix, lib_python);
joinpath(prefix, LANDMARK);
if (ismodule(prefix))
return 1;
prefix[n] = '\0';
reduce(prefix);
} while (prefix[0]);
/* Search from argv0_path, until root is found */
strcpy(prefix, argv0_path);
do {
n = strlen(prefix);
joinpath(prefix, lib_python);
joinpath(prefix, LANDMARK);
if (ismodule(prefix))
return 1;
prefix[n] = '\0';
reduce(prefix);
} while (prefix[0]);
/* Look at configure's PREFIX */
strcpy(prefix, PREFIX);
joinpath(prefix, lib_python);
joinpath(prefix, LANDMARK);
if (ismodule(prefix))
return 1;
/* Look at configure's PREFIX */
strcpy(prefix, PREFIX);
joinpath(prefix, lib_python);
joinpath(prefix, LANDMARK);
if (ismodule(prefix))
return 1;
/* Fail */
return 0;
/* Fail */
return 0;
}
static int
search_for_exec_prefix(argv0_path, home)
char *argv0_path;
char *home;
search_for_exec_prefix(char *argv0_path, char *home)
{
size_t n;
size_t n;
/* If PYTHONHOME is set, we believe it unconditionally */
if (home) {
char *delim;
delim = strchr(home, DELIM);
if (delim)
strcpy(exec_prefix, delim+1);
else
strcpy(exec_prefix, home);
joinpath(exec_prefix, lib_python);
joinpath(exec_prefix, "lib-dynload");
return 1;
}
/* If PYTHONHOME is set, we believe it unconditionally */
if (home) {
char *delim;
delim = strchr(home, DELIM);
if (delim)
strcpy(exec_prefix, delim+1);
else
strcpy(exec_prefix, home);
joinpath(exec_prefix, lib_python);
joinpath(exec_prefix, "lib-dynload");
return 1;
}
/* Check to see if argv[0] is in the build directory */
strcpy(exec_prefix, argv0_path);
joinpath(exec_prefix, "Modules/Setup");
if (isfile(exec_prefix)) {
reduce(exec_prefix);
return -1;
}
/* Check to see if argv[0] is in the build directory */
strcpy(exec_prefix, argv0_path);
joinpath(exec_prefix, "Modules/Setup");
if (isfile(exec_prefix)) {
reduce(exec_prefix);
return -1;
}
/* Search from argv0_path, until root is found */
strcpy(exec_prefix, argv0_path);
do {
n = strlen(exec_prefix);
joinpath(exec_prefix, lib_python);
joinpath(exec_prefix, "lib-dynload");
if (isdir(exec_prefix))
return 1;
exec_prefix[n] = '\0';
reduce(exec_prefix);
} while (exec_prefix[0]);
/* Search from argv0_path, until root is found */
strcpy(exec_prefix, argv0_path);
do {
n = strlen(exec_prefix);
joinpath(exec_prefix, lib_python);
joinpath(exec_prefix, "lib-dynload");
if (isdir(exec_prefix))
return 1;
exec_prefix[n] = '\0';
reduce(exec_prefix);
} while (exec_prefix[0]);
/* Look at configure's EXEC_PREFIX */
strcpy(exec_prefix, EXEC_PREFIX);
joinpath(exec_prefix, lib_python);
joinpath(exec_prefix, "lib-dynload");
if (isdir(exec_prefix))
return 1;
/* Look at configure's EXEC_PREFIX */
strcpy(exec_prefix, EXEC_PREFIX);
joinpath(exec_prefix, lib_python);
joinpath(exec_prefix, "lib-dynload");
if (isdir(exec_prefix))
return 1;
/* Fail */
return 0;
/* Fail */
return 0;
}
static void
calculate_path()
{
extern char *Py_GetProgramName();
extern char *Py_GetProgramName();
static char delimiter[2] = {DELIM, '\0'};
static char separator[2] = {SEP, '\0'};
char *pythonpath = PYTHONPATH;
char *rtpypath = getenv("PYTHONPATH");
char *home = Py_GetPythonHome();
char *path = getenv("PATH");
char *prog = Py_GetProgramName();
char argv0_path[MAXPATHLEN+1];
int pfound, efound; /* 1 if found; -1 if found build directory */
char *buf;
size_t bufsz;
size_t prefixsz;
char *defpath = pythonpath;
static char delimiter[2] = {DELIM, '\0'};
static char separator[2] = {SEP, '\0'};
char *pythonpath = PYTHONPATH;
char *rtpypath = getenv("PYTHONPATH");
char *home = Py_GetPythonHome();
char *path = getenv("PATH");
char *prog = Py_GetProgramName();
char argv0_path[MAXPATHLEN+1];
int pfound, efound; /* 1 if found; -1 if found build directory */
char *buf;
size_t bufsz;
size_t prefixsz;
char *defpath = pythonpath;
#ifdef WITH_NEXT_FRAMEWORK
NSModule pythonModule;
NSModule pythonModule;
#endif
#ifdef WITH_NEXT_FRAMEWORK
pythonModule = NSModuleForSymbol(NSLookupAndBindSymbol("_Py_Initialize"));
/* Use dylib functions to find out where the framework was loaded from */
buf = NSLibraryNameForModule(pythonModule);
if (buf != NULL) {
/* We're in a framework. */
strcpy(progpath, buf);
pythonModule = NSModuleForSymbol(NSLookupAndBindSymbol("_Py_Initialize"));
/* Use dylib functions to find out where the framework was loaded from */
buf = NSLibraryNameForModule(pythonModule);
if (buf != NULL) {
/* We're in a framework. */
strcpy(progpath, buf);
/* Frameworks have support for versioning */
strcpy(lib_python, "lib");
} else {
/* If we're not in a framework, fall back to the old way (even though NSNameOfModule() probably does the same thing.) */
/* Frameworks have support for versioning */
strcpy(lib_python, "lib");
}
else {
/* If we're not in a framework, fall back to the old way
(even though NSNameOfModule() probably does the same thing.) */
#endif
/* Initialize this dynamically for K&R C */
@ -402,179 +393,179 @@ calculate_path()
* $PATH isn't exported, you lose.
*/
if (strchr(prog, SEP))
strcpy(progpath, prog);
strcpy(progpath, prog);
else if (path) {
while (1) {
char *delim = strchr(path, DELIM);
while (1) {
char *delim = strchr(path, DELIM);
if (delim) {
size_t len = delim - path;
strncpy(progpath, path, len);
*(progpath + len) = '\0';
}
else
strcpy(progpath, path);
if (delim) {
size_t len = delim - path;
strncpy(progpath, path, len);
*(progpath + len) = '\0';
}
else
strcpy(progpath, path);
joinpath(progpath, prog);
if (isxfile(progpath))
break;
joinpath(progpath, prog);
if (isxfile(progpath))
break;
if (!delim) {
progpath[0] = '\0';
break;
}
path = delim + 1;
}
if (!delim) {
progpath[0] = '\0';
break;
}
path = delim + 1;
}
}
else
progpath[0] = '\0';
progpath[0] = '\0';
#ifdef WITH_NEXT_FRAMEWORK
}
}
#endif
strcpy(argv0_path, progpath);
strcpy(argv0_path, progpath);
#if HAVE_READLINK
{
char tmpbuffer[MAXPATHLEN+1];
int linklen = readlink(progpath, tmpbuffer, MAXPATHLEN);
while (linklen != -1) {
/* It's not null terminated! */
tmpbuffer[linklen] = '\0';
if (tmpbuffer[0] == SEP)
strcpy(argv0_path, tmpbuffer);
else {
/* Interpret relative to progpath */
reduce(argv0_path);
joinpath(argv0_path, tmpbuffer);
}
linklen = readlink(argv0_path, tmpbuffer, MAXPATHLEN);
}
}
{
char tmpbuffer[MAXPATHLEN+1];
int linklen = readlink(progpath, tmpbuffer, MAXPATHLEN);
while (linklen != -1) {
/* It's not null terminated! */
tmpbuffer[linklen] = '\0';
if (tmpbuffer[0] == SEP)
strcpy(argv0_path, tmpbuffer);
else {
/* Interpret relative to progpath */
reduce(argv0_path);
joinpath(argv0_path, tmpbuffer);
}
linklen = readlink(argv0_path, tmpbuffer, MAXPATHLEN);
}
}
#endif /* HAVE_READLINK */
reduce(argv0_path);
reduce(argv0_path);
if (!(pfound = search_for_prefix(argv0_path, home))) {
if (!Py_FrozenFlag)
fprintf(stderr,
"Could not find platform independent libraries <prefix>\n");
strcpy(prefix, PREFIX);
joinpath(prefix, lib_python);
}
else
reduce(prefix);
if (!(pfound = search_for_prefix(argv0_path, home))) {
if (!Py_FrozenFlag)
fprintf(stderr,
"Could not find platform independent libraries <prefix>\n");
strcpy(prefix, PREFIX);
joinpath(prefix, lib_python);
}
else
reduce(prefix);
if (!(efound = search_for_exec_prefix(argv0_path, home))) {
if (!Py_FrozenFlag)
fprintf(stderr,
"Could not find platform dependent libraries <exec_prefix>\n");
strcpy(exec_prefix, EXEC_PREFIX);
joinpath(exec_prefix, "lib/lib-dynload");
}
/* If we found EXEC_PREFIX do *not* reduce it! (Yet.) */
if (!(efound = search_for_exec_prefix(argv0_path, home))) {
if (!Py_FrozenFlag)
fprintf(stderr,
"Could not find platform dependent libraries <exec_prefix>\n");
strcpy(exec_prefix, EXEC_PREFIX);
joinpath(exec_prefix, "lib/lib-dynload");
}
/* If we found EXEC_PREFIX do *not* reduce it! (Yet.) */
if ((!pfound || !efound) && !Py_FrozenFlag)
fprintf(stderr,
"Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]\n");
if ((!pfound || !efound) && !Py_FrozenFlag)
fprintf(stderr,
"Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]\n");
/* Calculate size of return buffer.
*/
bufsz = 0;
/* Calculate size of return buffer.
*/
bufsz = 0;
if (rtpypath)
bufsz += strlen(rtpypath) + 1;
if (rtpypath)
bufsz += strlen(rtpypath) + 1;
prefixsz = strlen(prefix) + 1;
prefixsz = strlen(prefix) + 1;
while (1) {
char *delim = strchr(defpath, DELIM);
while (1) {
char *delim = strchr(defpath, DELIM);
if (defpath[0] != SEP)
/* Paths are relative to prefix */
bufsz += prefixsz;
if (defpath[0] != SEP)
/* Paths are relative to prefix */
bufsz += prefixsz;
if (delim)
bufsz += delim - defpath + 1;
else {
bufsz += strlen(defpath) + 1;
break;
}
defpath = delim + 1;
}
if (delim)
bufsz += delim - defpath + 1;
else {
bufsz += strlen(defpath) + 1;
break;
}
defpath = delim + 1;
}
bufsz += strlen(exec_prefix) + 1;
bufsz += strlen(exec_prefix) + 1;
/* This is the only malloc call in this file */
buf = PyMem_Malloc(bufsz);
/* This is the only malloc call in this file */
buf = PyMem_Malloc(bufsz);
if (buf == NULL) {
/* We can't exit, so print a warning and limp along */
fprintf(stderr, "Not enough memory for dynamic PYTHONPATH.\n");
fprintf(stderr, "Using default static PYTHONPATH.\n");
module_search_path = PYTHONPATH;
}
else {
/* Run-time value of $PYTHONPATH goes first */
if (rtpypath) {
strcpy(buf, rtpypath);
strcat(buf, delimiter);
}
else
buf[0] = '\0';
if (buf == NULL) {
/* We can't exit, so print a warning and limp along */
fprintf(stderr, "Not enough memory for dynamic PYTHONPATH.\n");
fprintf(stderr, "Using default static PYTHONPATH.\n");
module_search_path = PYTHONPATH;
}
else {
/* Run-time value of $PYTHONPATH goes first */
if (rtpypath) {
strcpy(buf, rtpypath);
strcat(buf, delimiter);
}
else
buf[0] = '\0';
/* Next goes merge of compile-time $PYTHONPATH with
* dynamically located prefix.
*/
defpath = pythonpath;
while (1) {
char *delim = strchr(defpath, DELIM);
/* Next goes merge of compile-time $PYTHONPATH with
* dynamically located prefix.
*/
defpath = pythonpath;
while (1) {
char *delim = strchr(defpath, DELIM);
if (defpath[0] != SEP) {
strcat(buf, prefix);
strcat(buf, separator);
}
if (defpath[0] != SEP) {
strcat(buf, prefix);
strcat(buf, separator);
}
if (delim) {
size_t len = delim - defpath + 1;
size_t end = strlen(buf) + len;
strncat(buf, defpath, len);
*(buf + end) = '\0';
}
else {
strcat(buf, defpath);
break;
}
defpath = delim + 1;
}
strcat(buf, delimiter);
if (delim) {
size_t len = delim - defpath + 1;
size_t end = strlen(buf) + len;
strncat(buf, defpath, len);
*(buf + end) = '\0';
}
else {
strcat(buf, defpath);
break;
}
defpath = delim + 1;
}
strcat(buf, delimiter);
/* Finally, on goes the directory for dynamic-load modules */
strcat(buf, exec_prefix);
/* Finally, on goes the directory for dynamic-load modules */
strcat(buf, exec_prefix);
/* And publish the results */
module_search_path = buf;
}
/* And publish the results */
module_search_path = buf;
}
/* Reduce prefix and exec_prefix to their essence,
* e.g. /usr/local/lib/python1.5 is reduced to /usr/local.
* If we're loading relative to the build directory,
* return the compiled-in defaults instead.
*/
if (pfound > 0) {
reduce(prefix);
reduce(prefix);
}
else
strcpy(prefix, PREFIX);
/* Reduce prefix and exec_prefix to their essence,
* e.g. /usr/local/lib/python1.5 is reduced to /usr/local.
* If we're loading relative to the build directory,
* return the compiled-in defaults instead.
*/
if (pfound > 0) {
reduce(prefix);
reduce(prefix);
}
else
strcpy(prefix, PREFIX);
if (efound > 0) {
reduce(exec_prefix);
reduce(exec_prefix);
reduce(exec_prefix);
}
else
strcpy(exec_prefix, EXEC_PREFIX);
if (efound > 0) {
reduce(exec_prefix);
reduce(exec_prefix);
reduce(exec_prefix);
}
else
strcpy(exec_prefix, EXEC_PREFIX);
}
@ -583,31 +574,31 @@ calculate_path()
char *
Py_GetPath()
{
if (!module_search_path)
calculate_path();
return module_search_path;
if (!module_search_path)
calculate_path();
return module_search_path;
}
char *
Py_GetPrefix()
{
if (!module_search_path)
calculate_path();
return prefix;
if (!module_search_path)
calculate_path();
return prefix;
}
char *
Py_GetExecPrefix()
{
if (!module_search_path)
calculate_path();
return exec_prefix;
if (!module_search_path)
calculate_path();
return exec_prefix;
}
char *
Py_GetProgramFullPath()
{
if (!module_search_path)
calculate_path();
return progpath;
if (!module_search_path)
calculate_path();
return progpath;
}