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fcompl.c
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fcompl.c
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/****************************************************************************
* Complete a file name; returns 0 on successful (partial) completion
****************************************************************************/
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <dirent.h>
#include "charstr.h"
#include "file.h"
#include "error.h"
void fcompl(char *oname) {
int i, n, nmatch;
char *buf, name[VLNGSTRLEN], dir[VLNGSTRLEN], match[VLNGSTRLEN];
DIR *dirp;
struct dirent *dp;
/* Get the directory and (incomplete) file name */
strcpy(dir, oname);
if ((buf = strrchr(dir, '/')) != NULL) {
strcpy(name, buf+1);
*buf = '\0';
} else {
strcpy(name, dir);
strcpy(dir, ".");
}
/* Open the directory */
if ((dirp = opendir(dir)) == NULL) {
nferrormsg("fcompl(): Couldn't open directory %s!", name);
return;
}
/* Find matches */
n = strlen(name);
nmatch = 0;
while ((dp = readdir(dirp)) != NULL)
if (!strncmp(dp->d_name, name, n)) {
if (nmatch == 0) {
/* First match */
nmatch = 1;
strcpy(match, dp->d_name);
} else {
/* More than one match */
i = n + 1;
while (!strncmp(dp->d_name, match, i))
i++;
match[i-1] = '\0';
nmatch++;
}
}
closedir(dirp);
if (nmatch == 0) {
fprintf(stderr, "\a");
return;
}
if (nmatch > 1)
fprintf(stderr, "\a");
else {
/* If there was only one match, is it a directory? */
strcat(dir, "/");
if (isdir(strcat(dir, match)))
strcat(match, "/");
else
strcat(match, " ");
}
strcat(oname, match+n);
fprintf(stderr, "%s", match+n);
}