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Make it a Unix format. Check the path with access().

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This commit is contained in:
Alain Magloire 2002-10-16 00:55:24 +00:00
parent 711b80c01d
commit a509b0baaa
1 changed files with 78 additions and 69 deletions
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147
core/org.eclipse.cdt.core.linux/library/pfind.c
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@ -1,69 +1,78 @@
/*
* pfind.c - Search for a binary in $PATH.
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#ifndef PATH_MAX
#define PATH_MAX 1024
#endif
char *pfind(const char *name)
{
char *tok;
char *sp;
char *path = getenv("PATH" );
char FullPath[PATH_MAX+1];
if (name == NULL) {
fprintf(stderr, "pfind(): Null argument.\n");
return NULL;
}
if (path == NULL || strlen( path ) <= 0) {
fprintf(stderr, "Unable to get $PATH.\n");
return NULL;
}
// The value return by getenv() is readonly */
path = strdup(path);
tok = strtok_r(path, ":", &sp);
while (tok != NULL) {
//strcpy(FullPath, tok);
//strcat(FullPath, "/");
//strcat(FullPath, name);
snprintf(FullPath, sizeof(FullPath) - 1, "%s/%s", tok, name);
if (access(FullPath, X_OK | R_OK) == 0) {
free(path);
return strdup(FullPath);
}
tok = strtok_r( NULL, ":", &sp );
}
free(path);
return NULL;
}
#ifdef BUILD_WITH_MAIN
int main(int argc, char **argv)
{
int i;
char *fullpath;
for (i=1; i<argc; i++) {
fullpath = pfind(argv[i]);
if (fullpath == NULL)
printf("Unable to find %s in $PATH.\n", argv[i]);
else
printf("Found %s @ %s.\n", argv[i], fullpath);
}
}
#endif
/*
* pfind.c - Search for a binary in $PATH.
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#ifndef PATH_MAX
#define PATH_MAX 1024
#endif
char * pfind(const char *name)
{
char *tok;
char *sp;
char *path;
char fullpath[PATH_MAX+1];
/* Sanity check. */
if (name == NULL) {
fprintf(stderr, "pfind(): Null argument.\n");
return NULL;
}
/* For absolute name or name with a path, check if it is an executable. */
if (name[0] == '/' || name[0] == '.') {
if (access(name, X_OK | R_OK) == 0) {
return strdup(name);
}
return NULL;
}
/* Search in the PATH environment. */
path = getenv("PATH" );
if (path == NULL || strlen(path) <= 0) {
fprintf(stderr, "Unable to get $PATH.\n");
return NULL;
}
/* The value return by getenv() is readonly */
path = strdup(path);
tok = strtok_r(path, ":", &sp);
while (tok != NULL) {
snprintf(fullpath, sizeof(fullpath) - 1, "%s/%s", tok, name);
if (access(fullpath, X_OK | R_OK) == 0) {
free(path);
return strdup(fullpath);
}
tok = strtok_r( NULL, ":", &sp );
}
free(path);
return NULL;
}
#ifdef BUILD_WITH_MAIN
int main(int argc, char **argv)
{
int i;
char *fullpath;
for (i=1; i<argc; i++) {
fullpath = pfind(argv[i]);
if (fullpath == NULL)
printf("Unable to find %s in $PATH.\n", argv[i]);
else
printf("Found %s @ %s.\n", argv[i], fullpath);
}
}
#endif