Tibor Nagy
4381bb2a22
When the execution reaches the end of the main functions, they implicitly return a successful status.
29 lines
477 B
C
29 lines
477 B
C
#include <stdio.h>
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#include <stdlib.h>
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int main(void) {
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FILE *fp;
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int status;
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char path[256];
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fp = popen("ls -1 example_dir", "r");
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if (fp == NULL) {
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perror("popen");
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return EXIT_FAILURE;
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}
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while (fgets(path, 256, fp) != NULL) {
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printf("%s", path);
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}
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status = pclose(fp);
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if (status == -1) {
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perror("pclose");
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return EXIT_FAILURE;
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} else {
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printf("status %x\n", status);
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}
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}
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