68 lines
1.3 KiB
C
68 lines
1.3 KiB
C
/* See LICENSE file for copyright and license details. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "text.h"
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#include "util.h"
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static void parse_modline(char *buf, char **name, char **size,
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char **refcount, char **users);
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static void
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usage(void)
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{
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eprintf("usage: %s\n", argv0);
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}
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int
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main(int argc, char *argv[])
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{
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const char *modfile = "/proc/modules";
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FILE *fp;
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char *buf = NULL;
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char *name, *size, *refcount, *users;
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size_t bufsize = 0;
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size_t len;
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ARGBEGIN {
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default:
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usage();
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} ARGEND;
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if (argc > 0)
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usage();
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fp = fopen(modfile, "r");
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if (!fp)
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eprintf("fopen %s:", modfile);
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printf("%-23s Size Used by\n", "Module");
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while (agetline(&buf, &bufsize, fp) != -1) {
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parse_modline(buf, &name, &size, &refcount, &users);
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if (!name || !size || !refcount || !users)
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eprintf("invalid format: %s\n", modfile);
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len = strlen(users) - 1;
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if (users[len] == ',' || users[len] == '-')
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users[len] = '\0';
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printf("%-20s%8s%3s %s\n", name, size, refcount,
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users);
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}
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if (ferror(fp))
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eprintf("%s: read error:", modfile);
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free(buf);
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fclose(fp);
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return EXIT_SUCCESS;
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}
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static void
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parse_modline(char *buf, char **name, char **size,
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char **refcount, char **users)
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{
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*name = strtok(buf, " ");
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*size = strtok(NULL, " ");
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*refcount = strtok(NULL, " ");
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*users = strtok(NULL, " ");
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}
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