80edfd53ac
Valgrind shows a memory leak related to the function call d = opendir(path) on line 50. Very much appreciate the book, btw. Helping me learn and get comfortable with C!
78 lines
1.6 KiB
C
78 lines
1.6 KiB
C
#define _XOPEN_SOURCE 500
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#include <stdio.h>
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#include <dirent.h>
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#include <unistd.h>
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#include <sys/stat.h>
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void printUsage(char *arg);
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int main(int argc, char **argv)
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{
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int opt;
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unsigned int typ = 0;
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char *path = ".";
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/* Skapa pekare och struct */
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DIR *d;
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struct dirent *dir;
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struct stat s;
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/* Behandla argument med getopt */
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while ((opt = getopt(argc, argv, "hafdp:")) != -1)
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{
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switch (opt)
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{
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case 'a':
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typ = -1;
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break;
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case 'f':
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typ = S_IFREG;
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break;
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case 'd':
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typ = S_IFDIR;
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break;
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case 'p':
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path = optarg;
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break;
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case 'h':
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printUsage(argv[0]);
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return 0;
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default:
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printUsage(argv[0]);
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return 1;
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}
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}
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/* Byt katalog med chdir() för att stat() ska
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se filerna i rätt katalog */
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chdir(path);
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d = opendir(path);
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while ((dir = readdir(d)) != NULL)
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{
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if ( typ == 0 )
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{
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printf("%s\n", dir->d_name);
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}
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else
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{
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stat(dir->d_name, &s);
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/* Se kapitlet om 'Bitvisa operationer' */
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if ((s.st_mode & S_IFMT) == typ)
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printf("%s\n", dir->d_name);
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}
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}
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closedir(d);
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return 0;
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}
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void printUsage(char *arg)
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{
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printf("Usage: %s [-a] [-f] [-d] [-p path]\n"
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" -a to list all types (default)\n"
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" -f to list only files\n"
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" -d to list only directories\n"
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" -p to specify a directory\n", arg);
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}
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