9bf17bdc72
on SUNOS on non-SUNOS systems such as HP-UX and OSF/1. Note that on SUNOS systems, realpath.c is empty after pre-processing and does not interfere with the system supplied version.
88 lines
1.7 KiB
C
88 lines
1.7 KiB
C
#if defined(__alpha) || defined(__hpux)
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/*
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* file: realpath.c
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*
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* this routine emulates the realpath() function found in SUNOS
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*
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*
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* NOTE: this function needs to be properly tested and verified on
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* HPUX and OSF/1 to determine consistency with SunOS's version
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*
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* N.B. - this was put together in a big hurry!
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*
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* 10/10/l94 (MDA)
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*/
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#include <unistd.h>
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#include <sys/param.h>
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char *realpath(char *path, char resolvedPath[MAXPATHLEN])
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{
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char *returnPath;
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int status;
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char currentPath[MAXPATHLEN], buffer[MAXPATHLEN];
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#ifdef DEBUG
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printf(
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"\n ---- realpath() - test and verify this (prototype) homegrown version!\n");
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#endif
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resolvedPath[0] = '\0';
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if (!access(path,F_OK)) {
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if (path[0] == '.') {
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/* relative pathname */
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getcwd(currentPath,MAXPATHLEN);
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if (strlen(currentPath) > 0) {
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sprintf(buffer,"%s/%s",currentPath,path);
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status = readlink(buffer,resolvedPath,MAXPATHLEN);
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if (status < 0) {
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returnPath = buffer;
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} else {
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returnPath = resolvedPath;
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}
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} else {
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returnPath = NULL;
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}
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} else {
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/* full pathname */
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status = readlink(path,resolvedPath,MAXPATHLEN);
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if (status < 0) {
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returnPath = path;
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} else {
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returnPath = resolvedPath;
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}
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}
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} else {
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returnPath = NULL;
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}
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return(returnPath);
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}
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#ifdef TEST_REALPATH
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main(int argc, char **argv)
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{
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char path[MAXPATHLEN];
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char *returnPath;
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if (argc < 2) {
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printf("\n requires argument for path to be 'realpath()-ed'");
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exit(-1);
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}
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returnPath = realpath(argv[1], path);
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printf("\n realpath(%s) = %s\n",argv[1],returnPath);
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exit(0);
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}
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#endif
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#else
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/* for SUNs, using system supplied realpath() function */
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#endif
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